SMALL WIND POWER GENERATION SYSTEMS AND MAXIMUM POWER POINT TRACKING CONTROL METHOD USING DC-LINK VOLTAGE VARIABLE OF THE GRID-CONNECTED INVERTER

摘要

Disclosed is a small wind power system using a DC-link variable voltage of a grid-connected inverter, including: a diode rectifier for receiving three-pole AC power from a permanent magnet synchronous generator; a DC-link capacitor connected to both ends of the diode rectifier; a grid-connected inverter connected to both ends of the DC-link capacitor; and a control unit which is connected to the grid-connected inverter while instructing a command value of DC-link voltage which maximizes an output power of the inputted wind.