Method and Apparatus for Controlling Power Compensation of Wind Power Generating System

An apparatus for controlling power compensation of a wind power generating system, comprising:

• a detection unit that detects output power obtained from wind power generation and firstly determines the number of required banks;
• a battery that supplies a direct current in order to smooth the output power;
• a converter unit that performs DC/DC converting of the battery;
• an inverter unit that converts DC output of the converter unit into AC output;
• a transformation unit that boosts or reduces the AC output of the inverter unit;
• and
• a control unit that receives detection information of the detection unit to determine a charging operation or a discharging operation of the battery in order to compensate for the output power, changes use priority of the battery to lowest priority and initializes an accumulated using time of the battery when a new bank is added in a descending order of use priority among a plurality of banks and the using time of the battery is equal to or more than a preset critical time.