Control strategy for assisting new energy power station to participate in system frequency modulation through energy storage

Control strategy for assisting new energy power station to participate in system frequency modulation through energy storage

The invention discloses a control strategy for assisting a new energy power station to participate in system frequency modulation through energy storage, and belongs to electric power generation field, the invention aims to provide a control strategy with advantages of inertia control and droop cont...

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Hauptverfasser: WU ZIHAO, TANG HAO, LI HUA, HE WEIGUO, HUA GUANGHUI, TANG LUTIAN, WANG KANG, LI LI, WAN TIANHU, WANG CHENXI, ZHANG XIANGWEN
Format: Patent
Sprache:chi ; eng
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CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
GENERATION
SYSTEMS FOR STORING ELECTRIC ENERGY
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creator WU ZIHAO
TANG HAO
LI HUA
HE WEIGUO
HUA GUANGHUI
TANG LUTIAN
WANG KANG
LI LI
WAN TIANHU
WANG CHENXI
ZHANG XIANGWEN
description The invention discloses a control strategy for assisting a new energy power station to participate in system frequency modulation through energy storage, and belongs to electric power generation field, the invention aims to provide a control strategy with advantages of inertia control and droop control, and different control strategies can be adopted to adjust the output of the energy storage system in different time periods of frequency modulation; the method comprises the following steps: (1) dividing system frequency change into different time periods: recording a moment when the system frequency fluctuates and exceeds an allowable range as t0, recording a moment when the frequency fluctuation reaches a maximum value as tm, and recording a moment when the frequency gradually recovers toa normal range as ts; (2) taking t0 as a moment when energy storage starts to participate in primary frequency modulation, and adopting inertia control to participate in power grid frequency modulation in energy storage base
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subjects CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
GENERATION
SYSTEMS FOR STORING ELECTRIC ENERGY
title Control strategy for assisting new energy power station to participate in system frequency modulation through energy storage
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