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SAG VOLTAGE DEVICE FOR WIND POWER GENERATION INVERTER AND SAG VOLTAGE SYSTEM USING THE SAME
SAG VOLTAGE DEVICE FOR WIND POWER GENERATION INVERTER AND SAG VOLTAGE SYSTEM USING THE SAME
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机译：用于风力发电逆变器的凹陷电压装置和使用该凹陷电压系统的凹陷电压系统
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摘要
PURPOSE: A sag compensation apparatus of a system interconnection type inverter is provided to compensate sag generated in power supplied to a commercial system from an aero-generator, thereby minimizing malfunction or damage in a system due to a power accident. CONSTITUTION: A sag detection part(110) determines sag generation by measuring output voltage of a system interconnection type inverter. The sag detection part calculates a voltage drop value due to the sag generation. A sag control part(120) compensates the output voltage of the system interconnection type inverter as an amount of the voltage drop value. The sag detection part comprises an output voltage measuring device(111) and a sag detector(112). The sag control part comprises a power factor calculator(121) and an inverter current controller(122).
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