Instantaneous frequency and voltage control of PMSG-based WECS using controllable load

Due to the power fluctuations from the renewable resources, such as wind; voltage and frequency variations are the biggest issues. This paper presents an instantaneous frequency and voltage control with distribution lines using controllable load. The wind energy conversion system (WECS) adopts AC-DC-AC methods, i.e., AC-DC (generator-side converter) and DC-AC (grid-side inverter). The pitch angle control method is used to control the output power of permanent magnet synchronous generator (PMSG). The generator-side converter controls the PMSG torque for achieving stable power smoothing of WECS. The grid-side inverter is used to control the DC-link voltage and grid voltage. The voltage control after the distribution line can be possible by reactive power control connected to the controllable load in the demand-side. Similarly, the frequency control can be controlled by active power of the controllable load. The effectiveness of the proposed method is validated by simulation results in Matlab/SimPower Systems.