Application of a dual-half-controlled-converter in a PMSG wind turbine

The configuration and control of a dual-half-controlled-converter (DHCC) designed for a permanent magnet synchronous generator (PMSG) wind turbine are proposed in this paper. The system performance is analyzed using Saber simulations. The simulations results demonstrate that by using coordinated current regulation techniques, pure sinusoidal input current waveforms can be achieved and shared equally between the two half-controlled-converters (HCC). For the same amount of power throughput and the same number of switches, the current rating required for the switches is significantly lower compared to a voltage source converter (VSC), which brings down the semiconductor cost without sacrificing system performance.