Power Maximization Control Of Wind Generation System Using Permanent Magnet Synchronous Generator

The efficient utilization of natural energy has attracted much attention recently in the context of depletion of energy sources and other environmental problems. In particular, wind power generation systems have been developed and implemented due to the renewability and cleanness of wind energy.This study deals with a variable-speed power generation system using permanent magnet synchronous generator (PMSM). In particular, a new PMSM control system is proposed for maximally efficient utilization of wind energy to assure maximum output. The relationship of current with loss of PMSM is achieved by mathematical model considering the copper loss and iron loss. Based on the model, the efficiency-optimized control is presented and applied to wind generation system. The wind turbine settles down on the maximum power point tracking (MPPT) control method. The maximum available generated power is obtained by the optimum current vector control considering the converter capacity and the losses of generator.Then this paper tries to apply the sensorless control to PMSM. A novel sensorless control strategy is presented for PMSM and the validity of the strategy is confirmed by the experiment.At last, this paper summarized the system and gave the analysis and the prospect for future research about wind generation using PMSM.