In allusion to the problem existences in the reactive power compensation with capacitor atpresently, the article bring forward.The advanced utility technique investigated controlling 10kV capacitor with thyristor switchin series. Getting across investigating the thyristors' specialty and technique in series, the articlebrought forward the static state and dynamic voltage.Equipoise method of thyristor switch in series, designed the main circuit framework whichused with reason, and buildup the security of sampling the point pass-zero by adopt samplingindependence in three-phase and increase window circuit. Getting across lucubrating the problemof control policy, mode regulated, signal collection, spring output, high voltage and low voltageisolation, protect setting est., we put forward the develop project and actualize technique of settingbrainpower controller, and improved the reliability and stability of control system by adopt mutualworking in the hardware. The circulate result indicate that the plan and technique are effectivecompletely.
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