基于混合调制的同步发电机交流励磁电源研究

Research of AC Excitation Power Supply of Synchronous Generator Based on Hybrid Modulation

同步发电机交流励磁技术可提高发电机的进相能力,是无功补偿最有效的方法之一。文章提出了一种基于混合调制的同步发电机交流励磁电源的设计方案,分析了同步发电机交流励磁系统的组成及工作原理,介绍了混合调制方式的控制原理,并给出了该励磁电源控制电路关键参数的选择和计算方法。实验结果验证了该方案的正确性和有效性。

AC excitation technology of synchronous generator can improve capability of leading phase of generator, and it is one of the most effective methods of reactive power compensation. The paper proposed a design scheme of AC excitation power supply of synchronous generator based on hybrid modulation, analyzed composition and working principle of AC excitation system of synchronous generator, introduced control principle of hybrid modulation mode and gave selection and calculation method of key parameters of control circuit of the excitation power supply. The experiment result proved correctness and effectiveness of the scheme.