Dynamic Performance of Type-4 Wind with Synchronous Condenser during Weak Grids and Faults

This paper presents the dynamic behavior of Type-4 wind during weak grid and faults when integrated with a synchronous condenser. The main objective of this work is to demonstrate the possible performance improvements in the type-4 wind plant operations by connecting a synchronous condenser in parallel. The synchronous condenser effectively damps low-frequency oscillations during weak grids, enhances the power transmission capability, improves the steady-state and transient stability of the grid, and augments the low voltage ride through (LVRT) performance capability of the type-4 wind. We have illustrated these benefits by integrating a 75 MVA synchronous condenser to a 200 MW type-4 wind plant. We have demonstrated the advantages of this integration through several test cases conducted in the PSCAD/EMTDC software environment.