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Speed regulator parameter identification method combined with frequency locus and particle swarm optimization

A technology of particle swarm algorithm and frequency trajectory, which is applied in the direction of instrumentation, calculation, electrical digital data processing, etc., to achieve the effect of avoiding on-site testing and convenient and timely acquisition

Active Publication Date: 2013-10-09
STATE GRID CORP OF CHINA +1
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Problems solved by technology

[0011] Aiming at the fact that there is no specific and effective method in the current prior art to realize the parameter identification of the governor system based on the measured frequency trajectory, the present invention provides a parameter identification method of the governor that combines the frequency trajectory and the particle swarm algorithm

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  • Speed regulator parameter identification method combined with frequency locus and particle swarm optimization
  • Speed regulator parameter identification method combined with frequency locus and particle swarm optimization
  • Speed regulator parameter identification method combined with frequency locus and particle swarm optimization

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Embodiment Construction

[0036] The invention is a speed governor parameter identification method combining frequency track and particle swarm algorithm. Mainly completed the modeling analysis of the speed control system; the realization of the parameter identification algorithm of the electro-hydraulic control system of the speed governor based on the optimization technology; the operation realization related to the PSASP software call.

[0037] The speed governor parameter identification method combining the frequency track and the particle swarm algorithm of the present invention is: establish the input and output model of the speed governor system, and prove the identifiability of the corresponding parameters; The transient simulation calculation module obtains the parameters of the governor, including obtaining the simulated frequency curve after the power system is disturbed, and then adjusts the parameters of the governor based on the particle swarm optimization algorithm to make the simulated f...

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Abstract

The invention relates to a speed regulator parameter identification method combined with a frequency locus and the particle swarm optimization. The speed regulator parameter identification method can be used for identifying parameters of a unit speed regulator. According to the speed regulator parameter identification method, an input and output model of a speed regulator system is set up, and identifiability of corresponding parameters is proved; an electromechanical transient simulating calculation module of the PSASP software is directly called through an interface, the speed regulator parameters are obtained, a simulation frequency curve after a power system is interfered is obtained, the speed regulator parameters are regulated based on the particle swarm optimization, and therefore the simulation frequency curve is close to an actual measurement frequency curve as much as possible; the optimized speed regulator parameters are obtained through repeated parameter optimization. According to the speed regulator parameter identification method, parameter identification of a speed regulating system can be finished only by utilizing a fault recording curve of a frequency and parameters of other components of the system, much troublesome on-spot tests can be avoided, and the relevant parameters of the speed regulator can be conveniently obtained by dispatch personnel in time.

Description

technical field [0001] The invention relates to a speed governor parameter identification method combined with a frequency track and a particle swarm algorithm, which can be applied to parameter identification of unit speed governor parameters. Background technique [0002] The speed control system is an important part of the generator control system, and the correctness of its parameters directly affects the stability and safety of the power grid operation. For details, see "Analysis of Modern Power Systems" edited by Wang Xifan. Beijing: Science Press, 2007. Due to the frequent change of system operation mode, the speed control system of each unit often needs to be adjusted frequently in order to adapt to the change of system operation mode. For the dispatching center, how to obtain the parameters of the speed control system of all units in the system in a timely manner is one of the powerful guarantees for the safety and stability of the system operation. [0003] Regar...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
Inventor 王刚黄旭刘劲松朱钰张涛张强孙峰戈阳阳李胜辉
Owner STATE GRID CORP OF CHINA
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