摘要
本文通过比较和分析间接电流控制算法和固定滞环控制算法的工作规律,揭示了各自的优缺点,并在此基础上提出了改进的滞环宽度控制算法,实现单位功率因数运行,在克服电流谐波污染的同时,能对电网的无功功率进行一定的补偿,实现能量的双向传送。PSIM仿真软件是专门为电力电子和电机控制这两个领域而设计的,运行效率高。通过利用PSIM仿真,验证了该控制算法的正确性和可行性,并易于数字化实现。
This paper discusses the relationship between inderect current control and derect current control＇s effect on system by analyzing and comparing their work rule,and arguments the advantage and disadvantage of the two control strategies,and then advances an optimized hysteresis PWM control algorithm.The optimized algorithm can make the rectifier work under unity power factor,avoid harmonic pollution,compensate the reactive power of grid to some extent,and enhance the tracking capability,and also realize bidirectional power transmission.PSIM is a simulation software specially designed for the fields of power electronic and motor control with high efficiency.Simulation results based on PSIM proved the validity and feasibility of the theoretical analysis in the end,and it is prone to digital realization.
出处
《电源世界》
2016年第9期21-25,共5页
The World of Power Supply
