CN106776234A - A kind of multicomputer concentrating type load responding system and response method - Google Patents

Abstract

The invention discloses a multi-computer cluster type load response system and a response method. It utilizes information terminals such as computers to quickly switch to an energy-saving mode or a battery mode to realize source-network-load interaction of information terminals. The method realizes intelligent interaction between information terminals such as computers and a power supply grid. When the grid power of the power grid dispatching department is insufficient and the voltage drops or the frequency drops, the server computer sends switching instructions to each client computer, and the client personal computer responds to the instruction. When the server receives the load-cutting command issued by the grid dispatching center, it can control a large number of computers through the Internet to switch the power plan of desktop computers from high-performance mode to energy-saving mode, and switch the power plan of notebook computers to battery-only mode.

Description

A multi-computer cluster load response system and response method

technical field

The invention relates to the field of grid flexible load dispatching, in particular to the field of flexible load response based on cluster response of information terminals such as personal computers.

Background technique

At present, environmental pollution is becoming more and more serious. In order to ensure the environmental quality of urban areas, large cities are gradually moving thermal power plants to places far away from urban areas, or introducing electric energy from afar through UHV transmission, that is, self-sufficient regional power grids are gradually transformed into large-scale power grids. receiving grid. However, large cities are economically developed and highly dependent on electricity. This fundamental change in the characteristics of the power grid has led to many technical problems in the urban distribution network.

When there is a risk of outage in the cross-regional AC/DC power transmission channel due to equipment, external failure, disaster, fault lockout, etc., especially the sudden outage during the period of high-power transmission, it will directly cause serious damage to the safe and stable operation of the power grid. Big shock. How to effectively and quickly adjust the load when the UHV AC-DC transmission channel is out of service, and minimize the impact of power outage on users has become an important problem to be solved urgently under the new operation pattern of the power grid.

Therefore, it is urgent to make full use of the fine-grained load control technology based on user intelligent interaction, realize the deep integration of new technologies such as "Internet +", cloud computing, and big data with the power system, and research new control technologies for user equipment terminals. Under the background of large regional interconnection, the safe operation of power grids in large cities or economically developed regions provides strong technical support.

Contents of the invention

The technical problem to be solved by the present invention is to overcome the defects of the prior art, and propose a source-load interaction method and a load response system using a personal computer as a load response execution body for the first time.

The specific technical scheme is as follows:

A multi-computer cluster load response system is characterized in that it includes a server computer and multiple client computers adopting server/client architecture;

The server computer receives the dispatching command of the grid dispatching center in real time, and sends a power mode switching instruction to each client computer according to the dispatching command.

The server computer has a fixed IP address or a fixed domain name; multiple client computers access the server computer through a fixed IP or fixed domain name, and receive instructions from the server computer in real time.

The server computer uses the existing Internet or 4G network to control the power plan switching of each client computer through broadcast instructions.

When the server computer receives the load-cutting command issued by the grid dispatching center, it controls each computer through the Internet to switch the power plan of the desktop computer from high-performance mode to energy-saving mode, and switch the power plan of notebook computer to battery-only mode. .

When the server computer receives the load restoration command issued by the power grid dispatching center, it controls each computer through the Internet to switch the power plan of the desktop computer from the energy-saving mode to the high-performance mode, and switch the power plan of the notebook computer to the mode of using mains power. .

The power grid dispatching center and the server computer are connected by optical fiber network.

A multi-computer cluster load response method, characterized in that a server computer and multiple client computers adopt a server/client structure, and conduct information interaction through the Internet or a 4G network; the server computer receives real-time power grid scheduling through an optical fiber network The dispatching command of the center, and according to the dispatching command, send the power mode switching instruction to each client computer.

When the power of the power supply grid is insufficient, the voltage drops or the frequency drops, the grid dispatching center sends a dispatching command to the server computer, and the server computer sends instructions to each client computer, and the client computer responds to the instruction and performs power supply according to the switching power supply plan corresponding to the instruction. Mode switch.

The client computer responds to commands as follows:

Step a, enumerate and save the power scheme currently used by the client computer;

Step b, after enumerating the global unique identifier of the power plan scheme, retrieve the friendly name corresponding to the power plan scheme;

Step c, requesting a scheduling instruction from the server computer through a fixed domain name or a fixed IP address;

Step d, return to step c if no scheduling instruction is received; when receiving a scheduling instruction, further determine what scheduling instruction is;

Step e, when receiving the load shedding scheduling instruction, set the power plan as an energy-saving mode;

Step f, when receiving the load recovery command, set the power plan to the high-performance mode, otherwise return to step c.

The function of the client software is to switch the power plan according to the instructions of the server. The power switching plan of the client computer must be set in advance by the user, and the power plan includes a high-performance mode, an energy-saving mode, and a balanced mode.

The beneficial effect that the present invention reaches:

At present, my country's Internet industry is developed, the Internet penetration rate is relatively high, there are a large number of personal desktop computers or notebook computers, and the number of personal computers connected to the Internet is huge. Moreover, after each desktop computer switches from high-performance mode to energy-saving mode, it can transfer about 3-10W of power, and each notebook computer can transfer about 50W of power when it switches from high-performance mode to battery mode. Therefore, making full use of the existing advantages of massive personal computer load transfer potential and natural networking, under the cluster effect, a huge load vacancy will be transferred. Therefore, the present invention proposes the source-load interaction using personal computers as load response execution bodies for the first time. method.

Description of drawings

Fig. 1 is a system block diagram of the present invention.

Fig. 2 is a working flowchart of the client service program of the present invention.

detailed description

The compositional block diagram of the present invention will now be described with reference to FIG. 1 . The present invention involves one server computer and thousands of client personal computers. The server computer is connected to the grid dispatch center. The server computer and the client computer adopt a server/client architecture. Client software is installed on a plurality of client computers for responding to instructions from the server computer.

The power grid dispatching center and server computer are connected by optical fiber high-speed network to ensure the timeliness of data. The server computer and multiple client computers use the existing Internet or mobile 4G network for interconnection and communication.

The server computer is installed with service software, which receives dispatching commands from the power grid dispatching center through the optical fiber network, and sends power mode switching instructions to multiple clients according to the dispatching commands. The server computer has a fixed IP address or a fixed domain name, where the fixed domain name is a fixed domain name mapped through DDNS dynamic domain name resolution technology. Multiple client computers access the server computer through a fixed IP or a fixed domain name.

The client computer installs the client software, and its functions are: 1. Request power mode instructions from the server computer through a fixed IP address or a fixed domain name in real time; 2. Receive server computer instructions in real time; 3; switch the power mode of the computer according to the server computer instructions .

Client computers include desktop computers, laptops, tablets, and more.

After each desktop computer switches from high-performance mode to energy-saving mode, it can transfer about 3-10W of power. When each notebook computer switches from high-performance mode to battery mode, it can transfer about 50W of power. When the clustered client computer responds to the load, it can give up a huge load vacancy, thus effectively realizing the two-way interaction between the power grid source and the load.

The specific implementation process of the client software is shown in Figure 2.

In the present embodiment, the implementation program uses the Windows system of Microsoft Corporation as the operating system platform, and realizes the functions of the present invention through the API program interface provided by Microsoft Corporation:

a. After the client software is running, first enumerate the current power usage scheme of the client computer. The API function used in this process is PowerEnumerate. This API function stores the enumerated power schemes in the Buffer address.

The function declaration format of this function is as follows:

DWORD WINAPI PowerEnumerate(

__in_opt HKEY RootPowerKey,

__in_opt const GUID *SchemeGuid,

__in_opt const GUID *SubGroupOfPowerSettingsGuid,

__in POWER_DATA_ACCESSOR AccessFlags,

__in ULONG Index,

__out_opt UCHAR *Buffer,

__inout DWORD *BufferSize

);

b. After enumerating the GUID (globally unique identifier) of the power plan scheme, use the PowerReadFriendlyName function to retrieve the friendly name corresponding to the power plan scheme. Such as energy saving, high performance, balanced mode and so on. The API function declaration structure is as follows:

DWORD WINAPI PowerRead FriendlyName(

__in_opt HKEY RootPowerKey,

__in_opt const GUID *SchemeGuid,

__in_opt const GUID *SubGroupOfPowerSettingsGuid,

__in_opt const GUID *PowerSettingGuid,

__out_opt PUCHAR Buffer,

__inout LPDWORD BufferSize

);

c. The client software requests scheduling instructions from the server computer by specifying a domain name or a fixed IP.

d. If no instruction is received, return to step c. When an instruction is received, it is further judged what scheduling instruction it is.

e. When receiving the load shedding scheduling instruction, the client software sets the power plan to the energy-saving mode. The API function to set the power plan mode uses the PowerSetActiveScheme function. Its function body is:

DWORD WINAPI PowerSetActiveScheme(

__in_opt HKEY UserRootPowerKey,

__in const GUID *SchemeGuid

);

The specific implementation steps and functions used are as follows:

1) Check the GUID of the "energy saving" power plan

FindPowerSheme("Energy saving", &GuidActiveSheme);

2) Directly call the API to switch the power plan

PowerSetActiveScheme(NULL, &GuidActiveSheme);

f. When receiving the load recovery command, the client software sets the power plan to high performance mode. Its specific implementation is as follows:

1) Check the GUID of the "energy saving" power plan

FindPowerSheme("High performance", &GuidActiveSheme);

2) Directly call the API to switch the power plan

PowerSetActiveScheme(NULL, &GuidActiveSheme).

The above is only a preferred embodiment of the present invention, it should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the present invention, some improvements and modifications can also be made. It should also be regarded as the protection scope of the present invention.

Claims (9)

1. A multi-computer cluster type load response system is characterized in that it comprises a server computer and multiple client computers adopting server/client architecture; The server computer receives the dispatching command of the grid dispatching center in real time, and sends a power mode switching instruction to each client computer according to the dispatching command. 2. A kind of multi-computer cluster load response system according to claim 1, characterized in that, the server computer has a fixed IP address or a fixed domain name; a plurality of client computers access the server computer through a fixed IP or a fixed domain name, real-time Receive instructions from the server computer. 3. A multi-computer cluster load response system according to claim 1, characterized in that the server computer uses the existing Internet or 4G network to control the power plan switching of each client computer through broadcast instructions. 4. A kind of multi-computer cluster type load response system according to claim 1, characterized in that, when the server computer receives the load cut-off command sent by the power grid dispatching center, each computer is controlled by the Internet to switch the desktop computer Switching the power plan from high performance mode to power saving mode switches the laptop's power plan to battery only mode. 5. A kind of multi-computer cluster type load response system according to claim 1, characterized in that, when the server computer receives the load restoration instruction sent by the grid dispatching center, each computer is controlled by the Internet to switch the power supply of the desktop computer to Switch the plan from Energy Saving Mode to High Performance Mode, and switch the laptop's power plan to Use Mains Power Mode. 6. A multi-computer cluster load response system according to claim 1, characterized in that, the power grid dispatching center and the server computer are connected by an optical fiber network. 7. A multi-computer cluster type load response method is characterized in that a server computer and multiple client computers adopt a server/client structure to interact information through the Internet or a 4G network; the server computer receives real-time information through an optical fiber network dispatching commands from the grid dispatching center, and send power mode switching instructions to each client computer according to the dispatching commands. 8. The multi-computer cluster load response method according to claim 7, characterized in that, when the power of the power grid is insufficient, the voltage drops or the frequency drops, the grid dispatching center sends a dispatch command to the server computer, and the server computer sends a dispatch command to each client The terminal computer sends an instruction, and the client computer responds to the instruction, and switches the power mode according to the switching power plan corresponding to the instruction. 9. The multi-computer cluster type load response method according to claim 7, wherein the client computer responds to the instruction according to the following steps: Step a, enumerate and save the power scheme currently used by the client computer; Step b, after enumerating the global unique identifier of the power plan scheme, retrieve the friendly name corresponding to the power plan scheme; Step c, requesting a scheduling instruction from the server computer through a fixed domain name or a fixed IP address; Step d, return to step c if no scheduling instruction is received; when receiving a scheduling instruction, further determine what scheduling instruction is; Step e, when receiving the load shedding scheduling instruction, set the power plan as an energy-saving mode; Step f, when receiving the load recovery command, set the power plan to the high-performance mode, otherwise return to step c.