摘要
针对高速铁路供电系统中存在的负序、无功和谐波等电能质量问题,提出由2个背靠背逆变器构成的铁路功率调节器(RPC)来实现电能治理。首先在构建数学模型,考虑开关损耗因数的基础上,重点分析开关频率对滞环控制性能的影响,为控制参数的选择提供依据。最后利用Matlab仿真和小功率平台进行验证,结果显示合理的控制方法和参数可使RPC拥有良好的电能优化能力。
In view of the negative sequence, high speed railway power supply system＇s harmonic and reactive power quality problems, a railway static power conditioner （RPC） consisting of two back-to-back inverter is put forward to realize the power control.Constructed mathematical model.Firsdy,based on the mathematical model and the switching loss factor, the influence of the switching frequency on the hysteresis control performance is analyzed.Finally,the Mat- lab simulation and small power platform are used to verify the results.The results show that the reasonable control method and parameters can make RPC have a good power optimization ability.
出处
《电力电子技术》
CSCD
北大核心
2018年第3期97-100,共4页
Power Electronics
基金
上海市地方能力建设项目(14110500900)~~
关键词
逆变器
负序补偿
滞环控制
inverter
negative sequence compensation
hysteresis control
