EXCITING METHOD, DEVICE AND SYSTEM OF DIRECT-CURRENT BRUSHLESS SYNCHRONOUS WIND DRIVEN GENERATOR

摘要

An exciting method, device and system of direct-current brushless synchronous wind driven generator. The voltage of a stator winding of a primary generator is rectified to obtain a direct-current output voltage. In combination with the direct-current output voltage, the exciting voltage and the exciting current of an exciter, and rotation speed information of the generator, the system performs inner loop control of the exciting current and performs outer loop control of the direct-current output voltage, and transmits the direct-current exciting voltage to a stator winding of the exciter of the generator by using a method of pulse width modulation. By adjusting the magnitude of the exciting current transmitted to the generator, the output voltage of the generator may be stabilized.