Control of PMSG-Based Wind Turbines to Damp the Power System Oscillations
نویسندگان
چکیده
1 Abstract-This paper investigates the control scheme of the permanent magnet synchronous generator (PMSG)-based wind turbines to improve the power system damping. Based on the analysis of the operation characteristics and control scheme of the PMSG-based wind turbines, the relationship between the dc side voltage fluctuation of the full scale power converter and the active power regulation of the PMSG is discussed, and a novel control strategy based on the energy transmission is proposed, which ensures the wind turbine provide the power support quickly and smoothly, and then the system damping is also improved using the novel active and the reactive power additional control scheme of the PMSG-based wind turbines, respectively. Finally, a three-machine system with 30% wind power penetration was used to validate the proposed control strategy. The simulation results show that the PMSG-based wind turbines not only have the fault ride through ability but also have the fast respond ability to damp the power system oscillations using the presented control strategies, so that the damping characteristic of the power system is improved.
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