Control and analysis of a new dynamic voltage restorer circuit topology for mitigating long duration voltage sags
作者： D.M. Vilathgamuwa , H.M. Wijekoon
关键词: Voltage sag 、 Control theory 、 Topology (electrical circuits) 、 Voltage regulator 、 Engineering 、 Voltage controller 、 Voltage droop 、 Disturbance voltage 、 Voltage regulation 、 Dropout voltage
摘要: Highly automated production processes are particularly susceptible to voltage disturbances in the power system. Series compensation form of dynamic restorer (DVR) is used mitigate these disturbances. The capability a particular DVR topology depends on its injection ability and maximum energy storage. This paper presents new circuit which has long duration sags with comparatively small storage capacitors. proposed equipped line-side current forced reversible rectifier that helps maintain DC-link under sag conditions. A closed loop controller consists an inner outer been incorporated into inverter load at desired level. Simulation experimental results presented demonstrate efficacy multiloop for various sags.
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