Digital Proportional plus Derivative Controller for Switching DC-DC Converters
Digital proportional plus derivative (D-PD) controller with zero steady-state error is introduced for buck dc-dc converters. The proposed D-PD controller decreases the number of look-up tables from three to two, and decreases the adder input from four to three in the compensator circuits in contrast with digital proportional plus integral plus derivative (D-PID) controller. A new technique, called as error-shift technique, is proposed to eliminate steady-state error without increasing any hardware cost. Therefore, the proposed D-PD controller can greatly reduce the layout area. Simulation shows that D-PD controller is better than D-PID controller for the gross performance of switching dc-dc converters.
switching dc-dc converter digital proportional plus derivative controller steady-state error digital pulse-width modulation
Feng Li Tingcun Wei Ran Zheng Han Yan
School of Computer Science and Technology, Northwestern Polytechnical University Xian China
国际会议
长春
英文
373-3763
2010-08-24（万方平台首次上网日期，不代表论文的发表时间）