Research on the Decoupling Control of Wind Power Grid-connected Converter

In this study, we provide a method to independent control the active current and the idle current which are output by the inverter, the power factors are achieved to be adjusted. Moreover, the angle of grid needs to be inspected by the vector control in real time so that the Software Phase-Locked Loop which has a powerful ability in phase locking under the rotating reference frame is adopted to get the accurate electric angles. In addition, a grid-connected experiment of the gird-side inverter is also conducted and the unit power factors of the inverter get connected by this method.