One-cycle control of PMSG for wind power generation

As a high-reliability and maintenance-free solution, direct-drive permanent magnet synchronous generator (PMSG) is a promising method for wind power generation, especially for off-shore applications. This paper introduces one-cycle control (OCC) of PMSG with back-to-back three phase converters. By utilizing OCC, dq transformation is eliminated and the controller is simple and reliable. Simulation results prove that the proposed controller can achieve precise and fast speed control of PMSG and keep DC link voltage stable at the same time.