基于二自由度有功／频率控制的中频逆变器并联系统仿真研究

摘要

According to the power sharing problems existing in the traditional droop control method that power sharing is influenced by the line,this paper put forward an improved parallel operation control method of three-phase medium frequency inverter.The method and the traditional droop method were carried on the contrast analysis.The analysis results show that the control method can effectively overcome the existing problems in the traditional droop method and realize the parallel operation in different capacity of static three-phase medium frequency power.Finally,the correctness and effectiveness of the proposed control method were verified by the simulation results.%针对传统下垂控制方法中存在的功率均分受线路影响较大等问题，提出了一种改进的三相静止中频电源并联组网运行的方法。与传统下垂方法进行了对比分析，分析结果表明，改进的控制方法能有效地克服传统下垂方法中存在的问题，并且能够实现不同容量的三相静止中频电源的并联组网运行。最后通过仿真验证了所提出的控制方法的正确性和有效性。