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A method and system for evaluating AGC performance of a generating set

A generator set, performance technology, applied in the direction of circuit device, AC network circuit, single network parallel feeding arrangement, etc., can solve the problem of insufficient evaluation accuracy

Active Publication Date: 2021-08-31
ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] This application provides a method and system for evaluating the AGC performance of a generator set to solve the problem in the prior art that the evaluation accuracy of the AGC performance of a generator set is not high enough

Method used

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  • A method and system for evaluating AGC performance of a generating set
  • A method and system for evaluating AGC performance of a generating set
  • A method and system for evaluating AGC performance of a generating set

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Experimental program
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Embodiment 1

[0062] see figure 1 , figure 1 It is a schematic flowchart of a method for evaluating the AGC performance of a generating set provided in the embodiment of the present application. Depend on figure 1 It can be seen that the method for evaluating the AGC performance of the generator set in this embodiment mainly includes the following process:

[0063] S1: Obtain the AGC instruction issued by the power grid dispatching control center.

[0064] S2: Determine the response process of the generator set to the AGC command according to the AGC command. The response process includes: a stable period, an up-regulation period and a down-regulation period.

[0065] After receiving an AGC command issued by the power grid dispatching control center, the generator set will adjust within the rated adjustment time, so that the active power of the unit can track the AGC command, and then stabilize for a period of time before continuing to receive the next AGC command and enter the next con...

Embodiment 2

[0093] see Figure 4 , Figure 4 It is a schematic structural diagram of a system for evaluating AGC performance of a generator set provided in the embodiment of the present application. Depend on Figure 4 It can be seen that the system for evaluating AGC performance of generator sets in this embodiment mainly includes: AGC command acquisition module, response process determination module, AGC state definition module, AGC state determination module, AGC state proportion calculation module and AGC state availability rate calculation module.

[0094]The AGC command obtaining module is used to obtain the AGC command issued by the power grid dispatching control center. The response process determination module is used to determine the response process of the generator set to the AGC command according to the AGC command. The response process includes: a stable period, an up-regulation period and a down-regulation period. The AGC state definition module is used to define the AGC...

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Abstract

The present application discloses a method and system for evaluating the AGC performance of a generating set. The method includes: obtaining an AGC command, determining the AGC response process according to the command, and defining five AGC states according to the output states of the generating set in different response processes, and then Determine the current AGC state according to the change of the response process of the generating set, calculate the proportion of different AGC states in a statistical period, and use the formula to calculate the AGC state availability rate of the generating set according to the proportion of different AGC states. The system includes: AGC command acquisition module, response process determination module, AGC state definition module, AGC state determination module, AGC state proportion calculation module and AGC state availability rate calculation module. Through this application, the specific AGC state availability rate value can be obtained according to the AGC command, and the evaluation of the availability and unavailability of the AGC state is more accurate and reliable, thereby providing a more reliable basis for the dispatching operation of the power grid, which is conducive to improving the stability of the power grid operation .

Description

technical field [0001] The present application relates to the technical field of automatic power generation control of generator sets, in particular to a method and system for evaluating AGC performance of generator sets. Background technique [0002] After the generator set is connected to the grid, it needs to have the automatic generation control function, that is, the AGC (Automatic Generation Control, automatic generation control) function. The quality of the AGC function determines the stability of the grid operation. In the actual operation process, due to the different equipment characteristics and control strategies of each generating set, the AGC performance varies greatly. Therefore, how to evaluate the AGC performance of the generator set is an important technical issue. [0003] At present, the method of evaluating the AGC performance of the generator set is to judge whether the generator set is an available unit. Specifically, if the deviation between the act...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/38
CPCH02J3/38H02J2203/20
Inventor 高嵩苗伟威吕霏颜庆王勇李磊孟祥荣王进王茗李军韩英昆路宽庞向坤
Owner ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY