Transient Stability Assessment of Power System Incorporating DFIM-Based Pumped Storage Hydropower and Wind Farm

Variable-speed (VS) pumped storage technology has become a new trend for providing better support power system incorporating renewable energies. On the other hand, the transient stability of the power system can be affected by the application of such kind of storage unit. State-of-the-art pumped storage hydropower plants (PSHP) based on doubly fed induction machine (DFIM) known as variable-speed and conventional PSHP-based on synchronous machine (SM) known as fixed speed (FS) have a different effect on transient stability of a large-scale power system. This chapter intends to present the modelling and controller of DFIM-based PSHP of two types of PSHPs, i.e., VS and FS under generating operation mode in DIgSILENT software. Also, the IEEE 10-machine 39-bus system namely New England test system is adopted as a large power network. The results show that using DFIM-based VS-PSHP in the interconnected power grids, not only the oscillation modes of PSHP is eliminated, but also it can strongly improve rotor angle and voltage transient stability of the power system.