Research on Transient Stability for Wind Power System Based on PSAT

Abstract

[Introduction] The paper aims to study the transient stability of the wind power system and that how the injection of reactive power to the wind power system affects the stability. [Method] So we established the mathematic model of the wind power generator, the frequency converter, and a three-machine-nine-node power system model was constructed based on PSAT. We realized the the time simulation in condition of the three phase fault. [Result] Then we get the voltage and power angel figure of direct drive wind power system, double-fed wind power system and constant speed wind power system under different bus short circuit fault time. [Conclusion] It demonstrates that the wind power system has different stability based on different wind power generator, disturbance and duration.

Keywords

• psat
• wind power system
• transient stability
• low voltage ride through