摘要
针对目前电感选取缺乏理论基础的缺点,利用电路拓扑为电压型PWM变换器的单相交流电子负载,采用双极性调制的滞环电流控制方法对交流侧电流进行控制来实现快速跟踪给定电流,从快速跟踪给定电流、抑制谐波及开关管频率限制3方面给出电感参数范围确定的方法,并最终确定电子负载中电感的选取范围,最后在Matlab/Simulink中进行仿真实验.仿真结果表明,选取合适的电感值有利于快速跟踪给定电流和抑制电流谐波,同时也证明了该电感选取方案的可行性.
Due to the lack of theoretical basis for selecting inductance parameters ,circuit topolo‐gy was used for the single‐phase AC electronic load of the voltage type PWM converter .The method of bipolar modulation hysteresis current control is selected to control the AC current in order to realize the fast tracking .The approach to the range of inductance parameter is identi‐fied with fast tracking ,the current harmonics restraining and the switch frequency .Finally , the range of inductance parameters is determined and the simulation is finished in Matlab/Sim‐ulink .T he simulation results show that the appropriate inductance helps to quickly track the reference current and restrain the current harmonics ,and the feasibility of the inductance selec‐tion scheme is also proved .
出处
《西安工程大学学报》
CAS
2015年第4期431-435,共5页
Journal of Xi’an Polytechnic University
关键词
电子负载
电感电流
电感参数
electronic load
inductance current
inductance parameters
