CN105588978B - A kind of detection of generated energy acquisition data intelligence and processing method based on Beidou satellite communication technology - Google Patents

Abstract

The invention discloses an intelligent detection and processing method of electric energy collection data based on the Beidou satellite communication technology. By comparing the current actual value of the received electric energy collection data of the Beidou satellite with the historical value and the integral electric quantity, it can automatically identify and Process the wrong data caused by distortion during the transmission process. If the current actual value is larger than the historical value, further calculate the interval time and difference between the current actual value and the historical value, and compare the difference with the reasonable power generation in the interval time and The integrated power is compared to determine whether the current actual value has abnormal data jumps caused by distortion in the transmission process. The invention solves the problem of intelligent detection and processing of abnormal data when the electric energy data collected by Beidou is transmitted to the dispatching main station through the satellite channel, and at the same time provides an alarm function for relevant suspicious data, which can be checked by operation and maintenance personnel in time, and can improve the efficiency of operation and maintenance At the same time, the accuracy and usability of the data collected by Beidou have been significantly improved.

Description

An intelligent detection and processing of electric energy collection data based on Beidou satellite communication technology rationale

technical field

The invention relates to the technical field of power grid electric energy data transmission, in particular to an intelligent detection and processing method for electric energy collection data based on Beidou satellite communication technology.

Background technique

At present, there are 567 non-statized small power generation enterprises in Anhui Province, with a total installed capacity of 2128MW, accounting for 8% of the total installed capacity of the society, which is equivalent to two large power plants with an installed capacity of one million. The total power generation capacity cannot be underestimated. Most of these non-scheduled power plants do not have the conditions to communicate with the power control center. The control center lacks real-time dispatch and management means for such small power generation enterprises, which is not conducive to the rational deployment of energy and increases power consumption.

Based on Beidou satellite communication technology, the present invention realizes the real-time monitoring of the operating conditions of the non-dispatched small power supply by the control center and the collection, transmission and processing of electric energy data. With less investment, high safety and reliability, it saves investment and operation and maintenance costs compared with wired communication and GPRS wireless communication solutions. At the same time, it can realize the Beidou satellite time synchronization of the factory and station without any additional equipment investment. By adopting the communication mode of the Beidou satellite channel, in many areas, the problems of no signal in wireless transmission and high cost of laying dedicated lines for accessing non-systematic power plants are solved. Install the data acquisition terminal and Beidou user machine at the non-unified control power plant, and send the data to the Beidou satellite command plane through the Beidou satellite. However, when the data is transmitted through the Beidou satellite channel, it may be caused by signal strength, weather, channel quality and other reasons. The occurrence of problems such as frame loss and error frames will lead to the distortion of the data received by the dispatching master station, which will seriously affect the accuracy and availability of power energy collection data. The abnormal situation also restricts the deepening application of Beidou satellite communication technology in the electric power field to a certain extent. The invention can solve the intelligent detection and processing of electric energy collection data in real time, and the technology is applicable to electric energy collection systems of different manufacturers.

Contents of the invention

Based on the problems existing in the background technology, the present invention proposes an intelligent detection and processing method for electric energy collection data based on Beidou satellite communication technology.

A method for intelligent detection and processing of electric energy acquisition data based on Beidou satellite communication technology proposed by the present invention comprises the following steps:

S1. Set the power generation threshold and the integral power corresponding to the power plant one by one. The power generation threshold is the power generation per unit time length; the integral power is the value after integrating the active power value of the generator with time;

S2. Real-time reception of the electric meter code data collected by the power plant terminal transmitted by the Beidou satellite;

S3. Read the stored historical value of the meter code data received last time by the power plant, and read the power generation threshold corresponding to the power plant, and compare the current real-time meter code value with the historical value;

S4. If the current real-time table code value is less than the historical value, discard the current real-time table code value;

S5. If the current real-time watch code value is equal to the historical value, then store the current real-time watch code value;

S6. If the current real-time meter value is greater than the historical value, calculate the interval between the current real-time meter value and the historical value, calculate the reasonable power generation within the interval through the time interval and the power generation threshold, and calculate the current real-time meter value and the historical value value, and then compare the difference with the reasonable power generation;

S7. If the difference is less than or equal to the reasonable power generation capacity, store the current real-time meter code value;

S8. If the difference is greater than the reasonable power generation, discard the current real-time meter code value and replace it with the integral power, generate relevant log records, and issue an alarm;

S9. When the condition of S7 is satisfied, calculate the power value in the collection time interval, compare it with the integrated power value in the time interval, and store the power value or give an alarm according to the comparison result.

Preferably, step S3 is specifically: according to the power plant number in the power data transmission process, obtain the historical value of the grid power meter code data received last time by the power plant to be detected and the corresponding power generation threshold, and compare the current real-time meter code value with the historical value Compare.

Preferably, the interval time in step S6 is the interval time length between the receiving time of the current real-time table code value and the receiving time of the historical value.

Preferably, step S2 is specifically: receive the ammeter code data collected by the power plant end transmitted by Beidou satellite in real time, and the ammeter code data is attached with its acquisition time, the interval time in step S6 is, the current real-time meter code value The interval length between the collection time and the collection time of the historical value.

Preferably, the reasonable power generation amount is the product of the power generation threshold and the time interval.

Preferably, step S0 is also included: setting the electric quantity floating value corresponding to the power plant one by one; in step S6, the calculation formula of reasonable power generation is:

Reasonable power generation = time interval x power generation threshold + power fluctuation value.

Preferably, the unit time length in step S1 is 1 second.

Preferably, step S9 is specifically: when the condition S7 is satisfied, calculate the power value in the collection time interval, and calculate the power difference between the power value in the collection time interval and the integrated power value in the time interval, and compare the power difference with The preset power threshold is compared; and according to the comparison result, the power value is stored or an alarm is issued.

Preferably, the formula for calculating the integral electric quantity is:

In the formula, W(t) is the calculated integral power value, p(t) is the real-time active power value of the generator, and T is the time interval.

Preferably, step S9 can be specifically divided into the following steps:

S91. When the condition S7 is satisfied, calculate the power value in the collection time interval, and calculate the power difference between the power value in the collection time interval and the integrated power value in the time interval, and compare the power difference with the preset power threshold ;

S92. If the power difference is less than or equal to the power threshold, it is judged that the collected power value is normal data, and the power value is stored in data;

S93, alarming if the power difference is greater than the power threshold.

The present invention provides an intelligent detection and processing method for electric energy collection data based on Beidou satellite communication technology, which can be directly excluded from the transmission process by comparing the current actual value of the received grid electric energy table code data with the historical value For the wrong data with smaller data due to distortion, if the current actual meter code value is larger than the historical value, further calculate the interval time and difference between the current actual value and the historical value, and compare the difference with the reasonable power generation within the interval time Compare to determine whether the current actual value has an abnormality in which the data becomes larger due to the distortion of the transmission process. Finally, the actual collected power value is compared with the integrated power value to further identify abnormal power data. In the present invention, the reasonable power generation is calculated through the interval time and the power generation threshold of the corresponding power plant, which has strong pertinence and high reliability, and is conducive to improving the reliability of judging that the distortion of power grid power data becomes larger during transmission. At the same time, the collected power value is checked with the integrated power value calculated by integrating the active power, which further ensures the accuracy and usability of the Beidou collected power data.

The invention solves the problem of automatic identification and processing of abnormal data when the electric energy data of the power grid is transmitted through the Beidou satellite, and can automatically correct the abnormal electric power data during statistics, providing reliable data guarantee for various statistical analysis applications of electric power in the power grid, and also has It is conducive to the sustainable development of Beidou satellite communication technology in the power field.

Description of drawings

Fig. 1 is an intelligent detection and processing method of electric energy collection data based on Beidou satellite communication technology proposed by the present invention.

Detailed ways

Referring to Fig. 1, a kind of electric energy acquisition data intelligent detection and processing method based on Beidou satellite communication technology proposed by the present invention comprises the following steps:

S1. Set the power generation threshold and integral power corresponding to the power plant one by one. The power generation threshold is the power generation per unit time length; the integral power is the value obtained by integrating the active power value of the generator with time.

S2. Real-time reception of the electric meter code data collected by the power plant end transmitted by the Beidou satellite.

In practical applications, in order to facilitate the identification of power plant data, each power plant in the grid has a corresponding number. Therefore, a database can be established, and the power generation threshold, grid power data and power plant number are bound and stored in the database for subsequent search and call.

S3. Read the stored historical value of the meter code data last received by the power plant, read the power generation threshold corresponding to the power plant, and compare the current real-time meter code value with the historical value. The comparison result between the current real-time table code value and the historical value is the basis for subsequent processing. Step S3 is specifically: according to the power plant number in the power data transmission process, obtain the historical value of the grid power data last received by the power plant to be detected and the corresponding power generation threshold from the database, and compare the current real-time table code value with the historical value. In this step, every time a grid electricity meter code data is received, it is compared with the grid electricity meter code data stored in the corresponding power plant stored in the database in the latest time, so as to avoid inaccurate judgment results due to too long time intervals. reliability.

S4. If the current real-time table code value is smaller than the historical value, discard the current real-time table code value. Grid electricity data refers to the sum of electricity sent by power plants through the grid, so there is no negative growth phenomenon in grid electricity data. If the detected current real-time meter value is less than the historical value, it means that the current real-time meter value is distorted during transmission. Pointless.

S5. If the current real-time meter code value is equal to the historical value, store the current real-time meter code value.

S6. If the current real-time meter value is greater than the historical value, calculate the interval between the current real-time meter value and the historical value, calculate the reasonable power generation within the interval through the time interval and the power generation threshold, and calculate the current real-time meter value and the historical value value, and then compare the difference with the reasonable yield. In this step, the interval time may be the interval time length between the receiving time of the current real-time table code value and the receiving time of the historical value. In this embodiment, in order to ensure the accuracy of reasonable power generation calculation, the interval time adopts the interval time length between the collection time of the current real-time meter code value and the collection time of the historical value. In order to obtain the interval time accurately, the grid power data received in real time in step S2 is attached with its collection time.

S7. If the difference is less than or equal to the reasonable power generation capacity, store the current real-time meter code value.

S8. If the difference is greater than the reasonable power generation, discard the current real-time meter code value and replace it with the integral power. At the same time, the system automatically records relevant logs and issues an alarm.

S91. When the condition S7 is satisfied, calculate the power value in the collection time interval, and calculate the power difference between the power value in the collection time interval and the integrated power value in the time interval, and compare the power difference with the preset power threshold . In this embodiment, the formula for calculating the integral electric quantity is:

In the formula, W(t) is the calculated integral power value, p(t) is the real-time active power value of the generator, and T is the time interval.

S92. If the power difference is less than or equal to the power threshold, it is judged that the collected power value is normal data, and the power value is stored in data for processing.

S93. If the power difference is greater than the power threshold, an alarm will be issued, and the operation and maintenance personnel of the electric energy system will be notified to perform manual processing.

In this embodiment, by comparing the power value with the integrated power value, when the comparison result is within a reasonable range, it is judged that the data is normal data, and the data is stored in the database; when the comparison result exceeds a reasonable range, an alarm is issued, and the The operation and maintenance personnel of the electric energy system perform manual processing. In this way, after the first judgment of the power grid through the reasonable power generation, the second judgment of the power grid is made through the integrated power value, which is conducive to improving the accuracy of real-time monitoring of the power grid.

The power meter code value sent by the power plant through the power grid is constantly increasing, so as long as the power plant has electricity on the grid within the interval time, the current actual meter code value should be greater than the historical value. However, the current actual meter code value is in the process of transmission. In the middle, the distortion may also become larger, so it is necessary to further judge the current actual value.

The reasonable power generation is the maximum possible value of the power sent by the power plant through the grid within the interval time. In specific implementation, the power generation threshold can be set as the maximum rate of power sent by the power plant through the grid, that is, the maximum power value that the power plant may send through the grid per unit time, and 1 second can be selected per unit time. In this way, a reasonable power generation It can be the product of the power generation threshold and the time interval.

In this embodiment, step S0 is also included: setting a power floating value corresponding to the power plant; in step S6, the calculation formula of reasonable power generation is: reasonable power generation=time interval×power generation threshold+power floating value. The setting of the floating value of electricity is beneficial to improve the accuracy of calculation of reasonable power generation and avoid deleting undistorted grid electricity data.

The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto, any person familiar with the technical field within the technical scope disclosed in the present invention, according to the technical solution of the present invention Any equivalent replacement or change of the inventive concepts thereof shall fall within the protection scope of the present invention.

Claims (10)

1. a kind of detection of generated energy acquisition data intelligence and processing method based on Beidou satellite communication technology, it is characterised in that Comprise the following steps：

Generating threshold value and device electricity, generating threshold value are to be generated electricity in unit time span correspondingly for S1, setting and power plant Amount；Device electricity is the value after generator active power value integrates to the time；

The ammeter table code data that S2, the power plant end of real-time reception Beidou satellite transmission collect；

S3, the history value for reading the last ammeter table code data received in the power plant stored, and read and sent out corresponding to power plant Electric threshold value, by current real-time table code value compared with history value；

If S4, current real-time table code value are less than history value, current real-time table code value is abandoned；

If S5, current real-time table code value are equal to history value, current real-time table code value is stored；

If S6, current real-time table code value are more than history value, the interval time of current real-time table code value and history value is calculated, is led to The reasonable generated energy crossed in time interval and generating threshold calculations interval time, and calculate current real-time table code value and history value Difference, then by difference compared with reasonable generated energy；

If S7, difference are less than or equal to reasonable generated energy, current real-time table code value is stored；

If S8, difference are more than reasonable generated energy, abandon current real-time table code value and substituted with device electricity, and generate Related log record, and alerted；

S9, when meeting S7 conditions, the charge value in acquisition time interval is calculated, and enter with the device electricity value in the time interval Row compares, and according to comparative result, storing electricity value or alarm.

2. a kind of detection of generated energy acquisition data intelligence and processing based on Beidou satellite communication technology as claimed in claim 1 Method, it is characterised in that step S3 is specially：Power plant numbering in electric quantity data transmitting procedure obtains generating to be detected The history value and corresponding generating threshold value of the last power grid electric table code data received of factory, by current real-time table code value with going through History value is compared.

3. a kind of detection of generated energy acquisition data intelligence and processing based on Beidou satellite communication technology as claimed in claim 1 Method, it is characterised in that the interval time in step S6 is, during the reception for receiving time and history value of current real-time table code value Between interval time lengths.

4. a kind of detection of generated energy acquisition data intelligence and processing based on Beidou satellite communication technology as claimed in claim 1 Method, it is characterised in that step S2 is specially：The ammeter table yardage that the power plant end of real-time reception Beidou satellite transmission collects According to, and the ammeter table code data are attached with its acquisition time, the interval time in step S6 is the collection of current real-time table code value The interval time lengths of the acquisition time of time and history value.

5. a kind of generated energy acquisition data intelligence detection of as described in claim 3 or 4 based on Beidou satellite communication technology with Processing method, it is characterised in that reasonable generated energy is the product of generating threshold value and time interval.

6. a kind of generated energy acquisition data intelligence detection of as described in claim 3 or 4 based on Beidou satellite communication technology with Processing method, it is characterised in that also including step S0：Set and the one-to-one electricity float value in power plant；In step S6, close Haircut electricity calculation formula be：

Reasonable generated energy=time interval × generating threshold value+electricity float value.

7. a kind of detection of generated energy acquisition data intelligence and processing based on Beidou satellite communication technology as claimed in claim 1 Method, it is characterised in that the unit interval length in step S1 is 1 second.

8. a kind of detection of generated energy acquisition data intelligence and processing based on Beidou satellite communication technology as claimed in claim 1 Method, it is characterised in that step S9 is specially：When meeting condition S7, the charge value in acquisition time interval is calculated, and calculate and adopt Collect the charge value and the electricity difference of the device electricity value in the time interval in time interval, by electricity difference and default electricity Amount threshold value compares；And according to comparative result, storing electricity value or alarm.

9. a kind of generated energy acquisition data intelligence detection of as described in claim 1 or 8 based on Beidou satellite communication technology with Processing method, it is characterised in that the calculation formula of device electricity is：

W (t) is the device electricity value calculated in formula, and p (t) is the real-time active power value of generator, and T is time interval.

10. a kind of detection of generated energy acquisition data intelligence and place based on Beidou satellite communication technology as claimed in claim 9 Reason method, it is characterised in that step S9 particularly may be divided into following steps：

S91, when meeting condition S7, the charge value in acquisition time interval is calculated, and calculate the charge value in acquisition time interval With the electricity difference of the device electricity value in the time interval, by electricity difference compared with default power threshold；

S92, electricity difference are less than or equal to power threshold, then judge that the charge value that collects as normal data, enters to charge value The processing of row data loading；

S93, electricity difference are more than power threshold, then are alerted.