1.5MW永磁直驱风电机组并网变流器的研制

Development of Grid-converter for 1.5 MW Permanent Magnet Direct Drive Wind Turbine

介绍了永磁直驱风电机组并网变流器系统结构和工作原理,并对并网变流器发电侧和电网侧的控制策略和控制电路进行了研究,在此基础上,研制了一台1.5 MW/690 V永磁直驱风电机组并网变流器样机,进行了相应的实验研究。实验结果表明,该控制策略和控制电路正确有效,并网变流器能实现能量的双向传递,具有优良的并网特性。

The system structure and working principle of grid-converter for permanent magnet direct drive wind turbine was introduced,control strategy and circuits of generator and grid sides were studied. On the basis of this,a prototype of grid-converter for 1.5 MW/690 V permanent magnet direct drive wind turbine was developed and corresponding experimental was done. Experimental results show that the control strategy and circuits are correctly and effectively, the power can flow from the supply to generator or the reverse flow, the converter has an excellent network characteristics.