摘要
平均电流控制是较常见的一种控制方法,它可以工作于CCM和DCM工作方式下,可以在输入电压、负载变化范围比较大的场合得到质量很高的电流波形。本文对平均电流控制电路的电流环和电压环的控制参数进行了选择设计,并用改进后的遗传算法对其进行进一步优化设计。最后通过仿真实验证明,优化后,电流环和电压环的相位裕量及稳定性优于优化设计前。
Average current control is one of the common control methods; it can work in CCM and DCM mode, and get the quali- fied current waveform in the occasion that the input voltage and load range is larger. In this paper, the current loop and voltage loop control parameters of average current control circuit is designed selectively, and make a further optimization design with the improved genetic algorithm. Finally, the simulation experiments show that the phase margin and stability of the optimized current loop and voltage loop is superior to the former design.
出处
《山西电子技术》
2014年第6期7-8,39,共3页
Shanxi Electronic Technology
关键词
电流控制
功率补偿
优化控制
current control
power compensation
optimal control
