摘要
针对传统PI控制不能无静差地跟踪交流信号、重复控制动态响应速度较慢的问题以及为了更好消除非周期性信号对系统控制性能的影响,本研究采用了一种PI控制和改进重复控制相串联的复合控制策略,该方法中加入了比例控制前馈和误差调整系数以提高系统对非周期性信号的抗扰性能,控制策略综合了重复控制和PI控制的优点,可以有效地消除系统的稳态误差、增强系统的鲁棒性并具有良好的动态电流响应。Matlab/Simulink仿真结果验证了该控制策略的正确性和有效性。
In view of problems that traditional PI control cannot track AC signal without static error and repetitive control has slow dynamic response speed as well as in order to reduce the impact of controlling about non-periodic signal effectively, the paper pro- posed an improved repetitive control and PI control series compound control strategy. The addition of control feed forward and error proportion coefficients in the algorithm improved the system disturbance restraint performance aiming at nonperiodic signal. This compound control combined the advantages of PI control and repetitive control, which could effectively eliminate the steady-state errors, improve the robustness of the system and have good dynamic current response. Matlab/Simulink simulation result validates correctness and feasibility of the control strategy.
出处
《青岛科技大学学报（自然科学版）》
CAS
2015年第4期432-437,共6页
Journal of Qingdao University of Science and Technology:Natural Science Edition
