AGC control strategy based on power fluctuation classified management

Abstract

The invention belongs to the field of the AGC control of the electric system, and specifically relates to an AGC control strategy based on power fluctuation classified management. The AGC control is the secondary frequency modulation, and only regulates intermediate-frequency load fluctuation; the spectrum analysis classification is performed on the power fluctuation on a tie line according to different response time by only utilizing discrete Fourier transform, and the first class of power fluctuation and the third class of power fluctuation belonging to the primary frequency modulation and economic dispatching scope are separated, and the compensation power on the second class of fluctuation correspondingly regulated by an AGC unit can be obtained through a Parseval's theorem. The computed data and CPS standard are computed according to the spectrum analysis, a regulating region can be divided into three classes according to absolute values, and the aims of acquiring less control frequency and good control effect can be acquired by adding the guidance of a certain correction rule.

Description

technical field [0001] The invention belongs to the field of AGC control of electric power systems, and in particular relates to an AGC control strategy based on power fluctuation classification management. Background technique [0002] In the power grid, a large number of new energy sources are connected, the penetration rate of new energy in the power grid is getting higher and higher, and the impact on the frequency is increasing, which makes the power fluctuation of the tie line increase year by year, and puts forward new requirements for the frequency regulation strategy of the power grid. It brings new problems and challenges to the automatic generation control of the power system. At the same time, with the continuous deepening of my country's power market reform and the implementation of various policies for market-oriented reforms, the requirements for Automatic Generation Control (AGC) unit deployment and auxiliary services are more precise, especially the new vers...

AI Technical Summary

Problems solved by technology

Although the above two studies have studied the AGC control strategy from multiple perspectives, they have seldom considered the problems at the load side of the power grid, and have not classified the load fluctuations. The part of the load fluctuation that does not require the AGC unit to participate in the regulation, the AGC unit also participates Adjustment, increasing the number of actions of the unit

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