CN204538957U - For filter apparatus and the DC-to-AC converter of the inverter of three-phase - Google Patents
For filter apparatus and the DC-to-AC converter of the inverter of three-phase Download PDFInfo
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- CN204538957U CN204538957U CN201520102990.XU CN201520102990U CN204538957U CN 204538957 U CN204538957 U CN 204538957U CN 201520102990 U CN201520102990 U CN 201520102990U CN 204538957 U CN204538957 U CN 204538957U
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- 101150012716 CDK1 gene Proteins 0.000 claims abstract description 12
- 230000001939 inductive effect Effects 0.000 claims description 2
- 238000001914 filtration Methods 0.000 description 9
- 230000011218 segmentation Effects 0.000 description 2
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/12—Arrangements for reducing harmonics from AC input or output
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/44—Circuits or arrangements for compensating for electromagnetic interference in converters or inverters
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
- H02M7/42—Conversion of DC power input into AC power output without possibility of reversal
- H02M7/44—Conversion of DC power input into AC power output without possibility of reversal by static converters
- H02M7/48—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/12—Arrangements for reducing harmonics from AC input or output
- H02M1/123—Suppression of common mode voltage or current
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Inverter Devices (AREA)
Abstract
本实用新型涉及一种用于三相的逆变器的滤波器装置，所述滤波器装置(20)具有：在第一相的输入端子(AC1a)和第一开关点(A)之间的第一电感(L1a)和第一电容(Ca)，在那里所述第一电感和第一电容的连接点与第一相的输出端子(AC2a)连接；在第二相的输入端子(AC1b)和第一开关点(A)之间的第二电感(L1b)和第二电容(Cb)，在那里所述第二电感和第二电容的连接点与所述第二相的输出端子(AC2b)连接；在第三相的输入端子(AC1c)和第一开关点(A)之间的第三电感(L1c)和第三电容(Cc)，在那里所述第三电感和第三电容的连接点与所述第三相的输出端子(AC2c)连接；和在正直流电压端子(DC1)和负直流电压端子(DC2)之间的第四电容(Cdc1)和第五电容(Cdc2)，在那里所述第四电容和第五电容的连接点与第一开关点(A)连接。
The utility model relates to a filter device for a three-phase inverter, the filter device (20) has: between the input terminal (AC1a) of the first phase and the first switch point (A) A first inductance (L1a) and a first capacitance (Ca), where the connection point of said first inductance and first capacitance is connected to the output terminal (AC2a) of the first phase; at the input terminal (AC1b) of the second phase and a second inductor (L1b) and a second capacitor (Cb) between the first switching point (A), where the connection point of the second inductor and the second capacitor is connected to the output terminal of the second phase (AC2b ) connection; a third inductance (L1c) and a third capacitance (Cc) between the input terminal (AC1c) of the third phase and the first switching point (A), where the third inductance and the third capacitance a connection point connected to the output terminal (AC2c) of said third phase; and a fourth capacitance (Cdc1) and a fifth capacitance (Cdc2) between the positive DC voltage terminal (DC1) and the negative DC voltage terminal (DC2), There, the connection point of the fourth capacitor and the fifth capacitor is connected to the first switching point (A).
Description
Technical field
The utility model relates to a kind of filter apparatus and a kind of DC-to-AC converter.
Background technology
Inverter is the electric instrument that direct voltage can be converted to the alternating voltage with variable frequency.The frequency that inverter can be used in changing in motor or similar load controls it.This inverter to motor feed is so-called is motor inverter.Inverter such as can be applied in electrical power in the transmission in AC network, and wherein inverter must produce the voltage corresponding to mains frequency.Inverter in this feed-in electrical network is so-called is grid inverters.Inverter also can be a part for frequency converter, and described frequency converter is such as controlling motor or other load.
Fig. 1 illustrates the example of the inverter 10 of three-phase, and the inverter of described three-phase has lead-out terminal ACa, ACb, ACc of positive direct-current voltages terminal DC+, negative dc voltage terminal DC-and three phase.The main current loop of inverter 10 can have semiconductor switch bridge and and direct voltage parts, described direct voltage parts have electric capacity C, and described electric capacity is connected between positive direct-current voltages terminal DC+ and negative dc voltage terminal DC-.The electric capacity C of the direct voltage parts of inverter 10 can be made up of one or more capacitor.Three-stage inverter also has neutral direct voltage pole in direct voltage parts, and the electric capacity C of the direct voltage parts of inverter 10 is divided into two parts by described direct voltage pole.
The problem relevant to the application of inverter disturbs, and inverter causes described interference in the electric system be connected with inverter.The modulation occurred in inverter produces high frequency common mode voltage (common mode) at the output of inverter usually, namely as the voltage to earth of phase sum, and produce differential mode voltage (differential mode), voltage namely between phase.The warbled electric current caused by voltage can disturb all the other electric systems be connected with inverter.
Utility model content
The utility model is based on following object: research and develop a kind of equipment, and it can solve or at least reduce the problems referred to above.The purpose of this utility model is realized by a kind of filter apparatus and a kind of DC-to-AC converter, and the feature of described filter apparatus and DC-to-AC converter is:
For a filter apparatus for the inverter of three-phase, described inverter has electric capacity, and described electric capacity is connected between the positive direct-current voltages terminal of described inverter and negative dc voltage terminal, and described filter apparatus has:
The input terminal of the input terminal of first-phase, the input terminal of second-phase and third phase;
The lead-out terminal of the lead-out terminal of described first-phase, the lead-out terminal of described second-phase and described third phase;
First inductance and the first electric capacity, described first inductance and the first capacitances in series are between the described input terminal and the first switching point of described first-phase, and the tie point there between described first inductance and described first electric capacity is connected with the described lead-out terminal of described first-phase;
Second inductance and the second electric capacity, described second inductance and the second capacitances in series are between the described input terminal and described first switching point of described second-phase, and the tie point there between described second inductance and described second electric capacity is connected with the described lead-out terminal of described second-phase; With
3rd inductance and the 3rd electric capacity, described 3rd inductance and the 3rd capacitances in series are between the described input terminal and described first switching point of described third phase, and the tie point there between described 3rd inductance and described 3rd electric capacity is connected with the described lead-out terminal of described third phase;
It is characterized in that, described filter apparatus has:
Positive direct-current voltages terminal and negative dc voltage terminal; With
4th electric capacity and the 5th electric capacity, described 4th electric capacity and the 5th capacitances in series are between described positive direct-current voltages terminal and described negative dc voltage terminal, and the tie point there between described 4th electric capacity and described 5th electric capacity is connected with described first switching point;
A kind of DC-to-AC converter, described DC-to-AC converter has the inverter of filter apparatus and three-phase, described inverter has the 6th electric capacity, described 6th electric capacity is connected between the positive direct-current voltages terminal of described inverter and negative dc voltage terminal, the input terminal of the first-phase of wherein said filter apparatus is connected with the lead-out terminal of the first-phase of described inverter, the input terminal of the second-phase of described filter apparatus is connected with the lead-out terminal of the second-phase of described inverter, the input terminal of the third phase of described filter apparatus is connected with the lead-out terminal of the third phase of described inverter, the positive direct-current voltages terminal of described filter apparatus is connected with the described positive direct-current voltages terminal of described inverter and the negative dc voltage terminal of described filter apparatus is connected with the described negative dc voltage terminal of described inverter.
Of the present utility modelly preferred embodiment to describe hereinafter.
The utility model based on: filter apparatus has the filter coupled portion that common mode disturbances also has differential mode interference.
According to solution of the present utility model, there is following advantage: when described solution and inverter in conjunction with time, described solution achieves carries out filtering by means of simple structure to common mode disturbances and differential mode interference.Solution of the present utility model also has following advantage: described solution also can subsequently be combined with inverter, and this extends application/applicability and the useful life of existing inverter, and need not change inverter itself.
Accompanying drawing explanation
Present combination preferred embodiment elaborates the utility model with reference to appended accompanying drawing, wherein:
Fig. 1 illustrates an example of the inverter according to an execution mode;
Fig. 2 illustrates an example of the filter apparatus according to an execution mode;
Fig. 3 illustrates an example of the filter apparatus according to an execution mode;
Fig. 4 illustrates an example of the filter apparatus according to an execution mode;
Fig. 5 illustrates an example of the filter apparatus according to an execution mode;
Fig. 6 illustrates an example of the filter apparatus according to an execution mode;
Fig. 7 illustrates an example of the DC-to-AC converter according to an execution mode.
Embodiment
Application of the present utility model is not restricted to specific system, and the different electric system that contrary the utility model can be combined inverter is applied.In addition, application of the present utility model is not restricted to the system or specific level that utilize specific fundamental frequency.
Fig. 2 illustrates an example of the filter apparatus 20 according to an execution mode.There is according to the filter apparatus of this example the input terminal AC1c of the input terminal AC1a of first-phase, the input terminal AC1b of second-phase and third phase.These input terminals AC1a, AC1b, AC1c of filter apparatus 20 are preferably arranged to be connected with the lead-out terminal of inverter.In addition, there is according to the filter apparatus of described example the lead-out terminal AC2c of the lead-out terminal AC2a of first-phase, the lead-out terminal AC2b of second-phase and third phase.These lead-out terminals AC2a, AC2b, AC2c of filter apparatus 20 are preferably arranged to be connected with load.Therefore, load can by means of inverter via filter apparatus 20 feed.The filter apparatus of described example yet has positive direct-current voltages terminal DC1 and negative dc voltage terminal DC2.These direct voltage terminal DC1, the DC2 of filter apparatus 20 are preferably arranged to be connected with the direct voltage terminal of inverter.
Fig. 3 to 6 illustrates the example of the filter apparatus 20 according to some execution modes.As described in example illustrates, according to an execution mode of the present utility model, filter apparatus has the first inductance L 1a and the first electric capacity Ca, described first inductance and the first capacitances in series are between the input terminal AC1a and the first switching point A of first-phase, and the tie point there between the first inductance L 1a and the first electric capacity Ca is connected with the lead-out terminal AC2a of first-phase.Filter apparatus has the second inductance L 1b and the second electric capacity Cb in addition, described second inductance and the second capacitances in series are between the input terminal AC1b and the first switching point A of second-phase, and the tie point there between the second inductance L 1b and the second electric capacity Cb is connected with the lead-out terminal AC2b of second-phase.Filter apparatus has the 3rd inductance L 1c and the 3rd electric capacity Cc in addition, described 3rd inductance and the 3rd capacitances in series are between the input terminal AC1c and the first switching point A of third phase, and the tie point there between the 3rd inductance L 1c and the 3rd electric capacity Cc is connected with the lead-out terminal AC2c of third phase.Filter apparatus also has the 4th electric capacity Cdc1 and the 5th electric capacity Cdc2, described 4th electric capacity and the 5th capacitances in series are just between (+) direct voltage terminal DC1 and negative (-) direct voltage terminal DC2, and the tie point there between the 4th electric capacity Cdc1 and the 5th electric capacity Cdc2 is connected with the first switching point A.
According to an execution mode, tie point between first inductance L 1a and the first electric capacity Ca is directly connected with the lead-out terminal AC2a of first-phase, tie point between second inductance L 1b and the second electric capacity Cb is directly connected with the lead-out terminal AC2b of second-phase, and the tie point between the 3rd inductance L 1c and the 3rd electric capacity Cc is directly connected with the lead-out terminal AC2c of third phase.Fig. 3 and this execution mode of 4 graphic extensions.
According to an execution mode, as graphic extension in figs. 5 and 6, filter apparatus has the 4th inductance L 2a by this way, 5th inductance L 2b and the 6th inductance L 2c, tie point between first inductance L 1a and the first electric capacity Ca is connected with the lead-out terminal AC2a of first-phase via the 4th inductance L 2a, tie point between second inductance L 1b and the second electric capacity Cb is connected with the lead-out terminal AC2b of second-phase via the 5th inductance L 2b, and the tie point between the 3rd inductance L 1c and the 3rd electric capacity Cc is connected with the lead-out terminal AC2c of third phase via the 6th inductance L 2c.
According to an execution mode, the tie point between the 4th electric capacity Cdc1 and the 5th electric capacity Cdc2 is directly connected with the first tie point A.Fig. 3 and this execution mode of 5 graphic extensions.
According to an execution mode, as graphic extension in figs. 4 and 6, filter apparatus has the first impedance Z by this way, and the tie point between the 4th electric capacity Cdc1 and the 5th electric capacity Cdc2 is connected with the first switching point A via the first impedance Z.First impedance Z can be inductive, ohmic properties, capacitive or its combination.
According to an execution mode, each inductance of filter apparatus has one or more coil (choke).In addition, according to an execution mode, each electric capacity of filter apparatus has one or more capacitor.The first feasible impedance Z can have one or more coil and/or one or more resistance and/or one or more capacitor with regard to it.
By the filter apparatus shown in the execution mode of Fig. 3 to 6, filtering can be carried out to the differential mode waveform between phase of the voltage of the pulse-width modulation of inverter with as the waveform of common mode over the ground of the summation of phase.The object preferably warbled voltage ripple of filtering.
Described thought is: sinusoid ground forms the voltage of the specific mutually capacitor of filter apparatus as far as possible, and the differential mode voltage that wherein load is born is sine-shaped.This preferably associatedly occurs with AC electric capacity Ca, Cb, Cc and AC inductance L 1a of filter apparatus, L1b, L1c.According to loadtype, the load-side of filter apparatus can also add filter inductance L2a, L2b, L2c (Fig. 5 and 6), to load current filtering.Because expect that filter apparatus also eliminates the common-mode voltage over the ground owing to modulating caused high frequency, so filter apparatus also has common mode current path.Described common mode current path is preferably made up of DC electric capacity Cdc1, Cdc2 of AC inductance L 1a, L1b, L1c, AC electric capacity Ca, Cb, Cc and closed-loop path.Between AC and DC electric capacity, also can add impedance Z (Fig. 4 and 6), can change by means of described impedance and can not work to differential mode filtering to the filtering of common-mode signal.DC electric capacity Cdc1, Cdc2 extremely descend the backhaul of decile common-mode signal at the DC of positive and negative.The voltage segmentation of the DC electric capacity of filter apparatus directly follows the null component of the three-phase voltage of modulation closely, and this makes voltage segmentation keep balance.If should occur stable non-equilibrium, so can correct by modulating.
Preferably, filter apparatus therefore cycle frequency modulation electric current, make described electric current not disturb remaining electric system.Differential-mode current is via AC inductance L 1a, L1b, L1c and AC electric capacity Ca, Cb, Cc circulation.Common mode current is via AC inductance L 1a, L1b, L1c, AC electric capacity Ca, Cb, Cc and DC electric capacity Cdc1, Cdc2 circulation.To the filtering of common-mode voltage ripple eliminate have high dv/dt to earth pulse, described pulse causes capacitive leakage current via the different stray capacitance of circuit.The core advantage of filter apparatus is, the sine-shaped phase voltage/principal voltage that will reach when electric drive is not obviously about the common-mode voltage in PWM frequency of earth potential.For this reason, no longer produce significant shaft current or other earth current (such as on the ground capacity of solar panel) in a device, this achieve the pure user's voltage in more cheap wiring (single-phase cable replaces the threephase cable of ledger line) and the application of electrical network simulation/isolated power grid.
Filter apparatus according to above-mentioned execution mode can be connected with the inverter of the three-phase of routine, the change that the inverter of described three-phase will not implemented in inverter and then do not have significant fringe cost.By this way, inverter itself can be formed as far as possible simply, and its range of application is by means of the expansion of additional filter.Filter apparatus according to above-mentioned execution mode such as also can be added to inverter that is old-fashioned, that use.Fig. 7 illustrates the DC-to-AC converter according to an execution mode.The DC-to-AC converter of this example has inverter 10 and the filter apparatus 20 of three-phase.Filter apparatus 20 can be the filter apparatus according in above-mentioned execution mode.Inverter 10 can be bipolar or three pole inverters, and described bipolar or three-stage inverter has the 6th electric capacity C, and described 6th electric capacity is connected between the positive direct-current voltages terminal DC+ of inverter and negative dc voltage terminal DC-.The electric capacity C of inverter 10 can be made up of one or more capacitor.According in the DC-to-AC converter of this example, the input terminal AC1a of the first-phase of filter apparatus 20 is connected with the lead-out terminal ACa of the first-phase of inverter 10, the input terminal AC1b of the second-phase of filter apparatus is connected with the lead-out terminal ACb of the second-phase of inverter, the input terminal AC1c of the third phase of filter apparatus is connected with the lead-out terminal ACc of the third phase of inverter, the positive direct-current voltages terminal DC1 of filter apparatus is connected with the positive direct-current voltages terminal DC+ of inverter and the negative dc voltage terminal DC2 of filter apparatus is connected with the negative dc voltage terminal DC-of inverter.DC-to-AC converter can also have load (not shown in figures) or be connected with it, and described load is connected with lead-out terminal AC2a, AC2b, AC2c of first, second, and third phase of filter apparatus 20.Therefore, inverter 10 can via filter apparatus 20 pairs of load feeds.Load can be arbitrary load, and the electric system of such as motor or three-phase is as electrical network.
Because the disturbance current of electric system is in inverter 10 and filter apparatus 20 inner loop, so the current value that inverter stands can become large slightly.But this is inapparent compared with other advantages as above that will realize in systems in which.The significant advantage of shown filter apparatus 20 is: common mode filtering does not make one/multiple capacitive load of the DC electric capacity C of inverter 10 completely, because filter current is via the capacitor cycle of DC electric capacity Cdc1, Cdc2 of filter apparatus 20, described capacitor is separated with one/multiple capacitor of the DC electric capacity C of inverter 10.At this, the life-span of one/multiple capacitor of the electric capacity C of inverter 10 remains unchanged about original measurement.For this reason, meaningfully, filter apparatus 20 such as also uses itself in 3 grades of inverters, although described 3 grades of inverters may have the ready-made backhaul of the mid point through intermediate loop for common mode filtering.
Filter apparatus can according to circumstances be enclosed in suitable cover respectively.Fig. 2 such as illustrates such solution: wherein whole filter apparatus 20 is arranged in housing.As an alternative, the different functional part of filter apparatus is organized as suitable sub-population, and wherein whole filter apparatus can have multiple parts be independently connected to each other.Such as, DC capacitor can be arranged in housing/module and AC capacitor can be arranged in other housing/module.Also it is possible that such as all capacitor be arranged in the housing/module of himself and coil is arranged in its housing/module.
Be well known that for those skilled in the art, this technology makes following improvement: can realize basic thought of the present utility model in a number of different manners.Therefore the utility model and its execution mode are not restricted to above-mentioned example but can change within the protection range of claim.
Claims (11)
1. for a filter apparatus for the inverter of three-phase, described inverter has electric capacity, and described electric capacity is connected between the positive direct-current voltages terminal of described inverter and negative dc voltage terminal, and described filter apparatus (20) has:
The input terminal (AC1c) of the input terminal (AC1a) of first-phase, the input terminal (AC1b) of second-phase and third phase;
The lead-out terminal (AC2b) of the lead-out terminal (AC2a) of described first-phase, described second-phase and the lead-out terminal (AC2c) of described third phase;
First inductance (L1a) and the first electric capacity (Ca), described first inductance and the first capacitances in series are between the described input terminal (AC1a) and the first switching point (A) of described first-phase, and the tie point there between described first inductance and described first electric capacity is connected with the described lead-out terminal (AC2a) of described first-phase;
Second inductance (L1b) and the second electric capacity (Cb), described second inductance and the second capacitances in series are between the described input terminal (AC1b) and described first switching point (A) of described second-phase, and the tie point there between described second inductance and described second electric capacity is connected with the described lead-out terminal (AC2b) of described second-phase; With
3rd inductance (L1c) and the 3rd electric capacity (Cc), described 3rd inductance and the 3rd capacitances in series are between the described input terminal (AC1c) and described first switching point (A) of described third phase, and the tie point there between described 3rd inductance and described 3rd electric capacity is connected with the described lead-out terminal (AC2c) of described third phase;
It is characterized in that, described filter apparatus (20) has:
Positive direct-current voltages terminal (DC1) and negative dc voltage terminal (DC2); With
4th electric capacity (Cdc1) and the 5th electric capacity (Cdc2), described 4th electric capacity and the 5th capacitances in series are between described positive direct-current voltages terminal (DC1) and described negative dc voltage terminal (DC2), and the tie point there between described 4th electric capacity and described 5th electric capacity is connected with described first switching point (A).
2. filter apparatus according to claim 1, it is characterized in that, described tie point between described first inductance (L1a) and described first electric capacity (Ca) is directly connected with the described lead-out terminal (AC2a) of described first-phase, described tie point between described second inductance (L1b) and described second electric capacity (Cb) is directly connected with the described lead-out terminal (AC2b) of described second-phase, and the described tie point between described 3rd inductance (L1c) and described 3rd electric capacity (Cc) is directly connected with the described lead-out terminal (AC2c) of described third phase.
3. filter apparatus according to claim 1, is characterized in that, described filter apparatus has the 4th inductance (L2a), the 5th inductance (L2b) and the 6th inductance (L2c), wherein
Described tie point between described first inductance (L1a) and described first electric capacity (Ca) is connected with the described lead-out terminal (AC2a) of described first-phase via described 4th inductance (L2a), described tie point between described second inductance (L1b) and described second electric capacity (Cb) is connected with the described lead-out terminal (AC2b) of described second-phase via described 5th inductance (L2b), and the described tie point between described 3rd inductance (L1c) and described 3rd electric capacity (Cc) is connected with the described lead-out terminal (AC2c) of described third phase via described 6th inductance (L2c).
4. the filter apparatus according to claim 1,2 or 3, is characterized in that, the described tie point between described 4th electric capacity (Cdc1) and described 5th electric capacity (Cdc2) is directly connected with described first switching point (A).
5. the filter apparatus according to claim 1,2 or 3, it is characterized in that, described filter apparatus has the first impedance (Z), and the described tie point there between described 4th electric capacity (Cdc1) and described 5th electric capacity (Cdc2) is connected with described first switching point (A) via described first impedance (Z).
6. filter apparatus according to claim 5, is characterized in that, described first impedance (Z) is inductive and/or ohmic properties and/or capacitive.
7. the filter apparatus according to any one in claims 1 to 3, is characterized in that, each inductance has one or more coil.
8. the filter apparatus according to any one in claims 1 to 3, is characterized in that, each electric capacity has one or more capacitor.
9. the filter apparatus according to any one in claims 1 to 3, is characterized in that, described filter apparatus (20) is enclosed in the housing.
10. a DC-to-AC converter, described DC-to-AC converter has the inverter (10) of filter apparatus according to any one of claim 1 to 9 (20) and three-phase, described inverter has the 6th electric capacity (C), described 6th electric capacity is connected between the positive direct-current voltages terminal (DC+) of described inverter and negative dc voltage terminal (DC-), the input terminal (AC1a) of the first-phase of wherein said filter apparatus is connected with the lead-out terminal (ACa) of the first-phase of described inverter, the input terminal (AC1b) of the second-phase of described filter apparatus is connected with the lead-out terminal (ACb) of the second-phase of described inverter, the input terminal (AC1c) of the third phase of described filter apparatus is connected with the lead-out terminal (ACc) of the third phase of described inverter, the positive direct-current voltages terminal (DC1) of described filter apparatus is connected with the described positive direct-current voltages terminal (DC+) of described inverter and the negative dc voltage terminal (DC2) of described filter apparatus is connected with the described negative dc voltage terminal (DC-) of described inverter.
11. DC-to-AC converter according to claim 10, it is characterized in that, described DC-to-AC converter also has the load by described inverter (10) feed, lead-out terminal (the AC2a of the described first-phase of described load and described filter apparatus (20), described second-phase and described third phase, AC2b, AC2c) connect.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FIU20144038U FI10441U1 (en) | 2014-02-14 | 2014-02-14 | The filter arrangement |
| FIU20144038 | 2014-02-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204538957U true CN204538957U (en) | 2015-08-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520102990.XU Expired - Lifetime CN204538957U (en) | 2014-02-14 | 2015-02-12 | For filter apparatus and the DC-to-AC converter of the inverter of three-phase |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN204538957U (en) |
| DE (1) | DE202015100540U1 (en) |
| FI (1) | FI10441U1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6636219B1 (en) * | 2018-11-22 | 2020-01-29 | 三菱電機株式会社 | Power converter |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102017123758A1 (en) | 2017-10-12 | 2019-04-18 | Schaffner International AG | Inverter with common mode filter |
| DE102021214405B4 (en) | 2021-12-15 | 2023-11-16 | Zf Friedrichshafen Ag | Inverter device for a vehicle and method for operating an inverter device |
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2014
- 2014-02-14 FI FIU20144038U patent/FI10441U1/en active IP Right Grant
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2015
- 2015-02-05 DE DE201520100540 patent/DE202015100540U1/en not_active Expired - Lifetime
- 2015-02-12 CN CN201520102990.XU patent/CN204538957U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6636219B1 (en) * | 2018-11-22 | 2020-01-29 | 三菱電機株式会社 | Power converter |
Also Published As
| Publication number | Publication date |
|---|---|
| DE202015100540U1 (en) | 2015-02-26 |
| FI10441U1 (en) | 2014-04-07 |
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