Zeta型变换器的比例积分滑模控制研究  

Research on Proportional Integral Sliding Mode Control of Zeta Converter

作　　者：张刚 牛晓旭 郝亮 郭英军 马虎刚 张晗广 ZHANG Gang;NIU Xiaoxu;HAO Liang;GUO Yingjun;MA Hugang;ZHANG Hanguang(College of Electrical Engineering,Hebei University of Science and Technology,Shijiazhuang 050091,China)

机构地区：[1]河北科技大学电气工程学院,河北石家庄050091

出　　处：《电力科学与工程》2025年第3期63-70,共8页Electric Power Science and Engineering

基　　金：河北省科技计划资助项目(23284502Z)。

摘　　要：针对Zeta变换器在升降压电路控制中的应用,提出了一种比例积分滑模(PISM)控制策略,旨在进一步提升其动态性能和输出电压的稳定性。通过对Zeta变换器系统状态方程的分析,设计了相应的滑模控制器,并对其滑模面横截条件及可达性条件进行论证,证明了控制器的稳定性。采用饱和函数替代传统的符号函数,有效降低了系统的抖振。仿真结果表明,与传统的双闭环比例积分(PI)控制相比,应用所提出的控制策略能够显著减少系统的超调量,并加快其动态响应速度。A proportional integral sliding mode(PISM)control strategy is proposed for the application of the Zeta converter in the control of buck-boost circuits,aiming to further improve the dynamic performance and output voltage stability.By analyzing the state equations of the Zeta converter system,a corresponding sliding mode controller is designed,and the cross-sectional and accessibility conditions of its sliding mode surface are demonstrated,proving the stability of the controller.The conventional sign function is replaced by saturation function,which effectively reduce the system’s chattering.The simulation results demonstrate that compared with traditional dual closed-loop proportional integral(PI)control,the proposed control strategy can significantly reduce the overshoot of the system and accelerate its dynamic response speed.

关 键 词：Zeta变换器 双闭环PI控制 比例积分滑模控制 超调量 动态响应速度 

分 类 号：TM461.3[电气工程—电器]