摘要
针对采用传统PI控制算法的三相交流调压器存在的动态响应慢、精度不高等问题,通过分析PI控制上升阶段和稳定阶段比例和积分增益的作用,设计出一种比例和积分增益以给定与反馈的偏差为自变量的非线性函数进行动态调整大小的非线性PI控制器,从而克服传统的PI控制在调节时间短和超调量小之间的矛盾。利用Simulink对非线性PI控制的三相交流调压电路进行建模仿真,仿真结果表明,与传统的PI控制相比,非线性PI控制具有超调量小,调节时间短,鲁棒性强等优点。
The three-phase AC voltage regulator using the traditional PI control algorithm has the problems of slow dynamic response and low precision. By analyzing the effect of PI control rising phase and stable phase proportional and integral gain, a nonlinear PI controller with proportional and integral gain to dynamically adjust the nonlinear function of the independent variable with the deviation from the feedback is designed. Thereby overcoming the contradiction between the traditional PI control in the short adjustment time and the small overshoot. Modeling and simulation of a three-phase AC voltage regulation circuit with nonlinear PI control by using Simulink. The simulation results showed that compared with the traditional PI control, the nonlinear PI control had the advantages of small overshoot, short adjustment time and strong robustness.
作者
汪钦臣
方益民
Wang Qinchen;Fang Yiming(Jiangnan University,Wuxi 214122,China)
出处
《电子测量技术》
2019年第20期58-62,共5页
Electronic Measurement Technology
基金
国家重点研发计划项目(2016YFD0400301)资助
关键词
三相交流调压电路
非线性
PI控制
仿真
three-phase AC voltage regulating circuit
nonlinearity
PI control
simulation
