Control method and control device of voltage source type wind generating set

The invention provides a control method and a control device for a voltage source type wind generating set. The control method comprises the following steps: determining a virtual internal potential phase; determining the d-axis component of the adjusted grid-connected voltage, and determining the q-axis component of the adjusted grid-connected voltage based on the adjusted fundamental component and the adjusted harmonic component of the q-axis component of the grid-connected voltage under the dq coordinate system; according to the adjusted d-axis component of the grid-connected voltage and the adjusted q-axis component of the grid-connected voltage, performing voltage outer loop control or voltage outer loop control and current inner loop control on the d-axis component and the q-axis component of the grid-connected reference voltage under a dq coordinate system to determine the d-axis component and the q-axis component of the modulation voltage; according to the virtual internal potential phase and the d-ax