Nonlinear Compensation in Digital Controller of Switching DC-DC Converters

摘要：

Digital control of switching dc-dc converters brings many benefits including capability to implement advanced control algorithm that is often complex. Nonlinear compensation function with digital PID of power coefficients is proposed in this paper. The describing function is adopted for analysis. The transient response under different load variations is investigated by simulation and compared with the converters employing linear PID compensation. The experiment system is also set up on FPGA platform to verify the analysis and simulation results. By comparison, nonlinear compensated converter has much better transient performance than the linear compensated one.

作者: Mingzhi He Jianping Xu Zhongwen Zhou Ni Chen Guohua Zhou

作者单位: College of Electrical Engineering, Southwest Jiaotong University Chengdu, Sichuan, 610031, P.R.China Sichuan Radio and TV University Chengdu, Sichuan, 610073, P.R.China

会议类型: 国际会议

会议名称: 2007年通信、电路与系统国际会议(2007 International Conference on Communications,Circuits and Systems Proceedings)

会议地点: 日本福冈

会议语种:英文

在线出版日期: 2007-07-11（万方平台首次上网日期，不代表论文的发表时间）