A closed-loop detection and verification method for power grid automatic power generation control

Abstract

The invention relates to a verification method in the filed of electricity systems, in particular to a power grid automatic generation control closed loop detection and verification method based on continuous time sequence simulation. The method includes the steps that a power grid AGC main station conducts calculation according to a power grid facture surface, generates an AGC strategy and sends the strategy to a unit AGC substation, the unit AGC substation starts simulating unit output changes after the strategy is received and rectified to be correct, and a load flow simulation module conducts continuous time sequence simulation by taking one second as a period according to the output changes of an AGC unit so as to generate a new power grid facture surface which is used for enabling the power grid AGC main station in the next period to generate a new control strategy. According to the power grid AGC detection and verification method, the simulation period lasts for only one second, the requirement for real-time data collection is completely and even better met, changes of the operation states of a power grid is well simulated in the AGC adjusting process, the closed loop control effect of the power grid AGC can be intuitively embodied, and the method is a plug-and-play detection and verification method and is simple, easy to conduct and effective.

Description

technical field [0001] The invention relates to a verification method in the field of power systems, in particular to a closed-loop detection verification method for automatic power generation control of a power grid. Background technique [0002] Automatic Generation Control (AGC) controls the active power of the generating units in the area, so that the generated power of the generating units in the area can track the change of the load, so as to meet the real-time balance of power supply and demand, and maintain the deviation between the system frequency and the rated value within the allowable range, and The purpose of maintaining the deviation between the external communication line power and the planned value within the allowable range. With the construction of the smart grid, AGC has become an important control means in the operation of the power system. The AGC function based on the smart grid dispatching technical support system (D5000) platform is more and more use...

AI Technical Summary

Problems solved by technology

[0003] At present, the main domestic power grid AGC manufacturers include China Electric Power Research Institute, NARI Technology, Beijing Kedong, etc. The control methods and strategies adopted by each manufacturer are different, which may lead to different AGC control effects. How to verify offline The control performance of the AGC of each manufacturer, and the evaluation of whether the control effect of the AGC can meet the requirements of the control operation of the power grid, there is still a lack of effective means

It can be seen that there is no good digital-analog detection tool for the network access detection of the AGC function of the power grid, so it is very necessary to study the method of detection and verification of the network AGC network connection

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