Parameter optimization method and system based on multi-virtual synchronous generator parallel grid-connected system

The invention relates to a parameter optimization method and system based on a multi-virtual synchronous generator parallel grid-connected system. The method comprises the following steps: S1, performing Lyapunov indirect method criterion on a small signal model of the multi-virtual synchronous gene...

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Hauptverfasser: LIN JICAN, LIU SHENQUAN, WANG GANG, WANG LONGJUN, TIAN MEIJUN, ZENG DEHUI
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creator LIN JICAN
LIU SHENQUAN
WANG GANG
WANG LONGJUN
TIAN MEIJUN
ZENG DEHUI
description The invention relates to a parameter optimization method and system based on a multi-virtual synchronous generator parallel grid-connected system. The method comprises the following steps: S1, performing Lyapunov indirect method criterion on a small signal model of the multi-virtual synchronous generator parallel grid-connected system containing a control link; s2, calculating a damping ratio and a real feature root according to the small signal state matrix; s3, constructing a dynamic evaluation function according to the stability and dynamic characteristics of the system; s4, giving a weight to the dynamic evaluation function by using an entropy weight method; and S5, judging the optimal solution of the evaluation function by using a quasi-annealing particle swarm algorithm. According to the method, the dynamic performance evaluation function is constructed for the multi-virtual synchronous generator parallel grid-connected system, so that the influence of parameters on the system is better evaluated; an en
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subjects CALCULATING
CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER
COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS
COMPUTING
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
COUNTING
DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FORADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORYOR FORECASTING PURPOSES
ELECTRICITY
GENERATION
PHYSICS
SYSTEMS FOR STORING ELECTRIC ENERGY
SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE,COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTINGPURPOSES, NOT OTHERWISE PROVIDED FOR
title Parameter optimization method and system based on multi-virtual synchronous generator parallel grid-connected system
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