Design and Research of Bidirectional Excitation Voltage Regulator of Doubly Salient Hybrid Excitation Generator
Yan Yang-guang · Proceedings of the CSEE · 2008
Doubly salient hybrid excitation generator (DSHEG) was introduced. Its structure and mathematical model were built. Based on hybrid excitation generator, a bidirectional excitation voltage regulator was proposed, which could keep output voltage stable by adjusting exciting current. Three generating ways were introduced. The working principle of bipolar control strategy and the parameters of control loop influence on output voltage were analyzed. Three generating modes of the DSHEG and its characters were given. A bidirectional excitation voltage regulator was built. Theoretical analysis shows that the voltage regulator can adjust exciting current freely and the conclusion is verified by experimental results. The generator has good stable and dynamic characteristics. The regulator can also be applied to other hybrid excitation generators.