摘要
工业园区内储能电站参与电网调峰具有随机性和非线性特点,会影响变流器快速准确地跟踪动态调度指令,针对此问题,提出一种应用于储能变流器的超螺旋滑模控制器设计方法。该控制器以dq0坐标系下储能变流器的数学模型为基础,采用电流内环超螺旋滑模控制来实现对信号的准确跟踪。超螺旋滑模控制包括连续控制和切换控制,在切换控制时引入超螺旋控制率,使得负载投切时扰动误差可以更快速地趋近滑模面。为了验证所提控制算法的有效性,在MATLAB/Simulink中搭建了仿真模型,仿真结果表明,所提控制算法能够在快速性和鲁棒性上优于PI控制和滑模控制。
Aiming at the randomness and non-linearity of the energy storage power station in the industrial park participating in the power grid peak shaving,which affects the converter to track the dynamic dispatching instructions quickly and accurately,a super spiral sliding mode applied to the energy storage converter controller design method is proposed in this paper.Based on the mathematical model of the energy storage converter in the coordinate system of dq0,the controller adopts the super spiral sliding mode control of the current inner loop to realize accurate signal tracking.The super spiral sliding mode control includes continuous control and switching control.In the switching control,the super spiral control rate is introduced,so that the disturbance error during load switching can approach the sliding mode surface more quickly.In order to verify the effectiveness of the proposed control algorithm,a simulation model was built in MATLAB/Simulink.The simulation results show that the proposed control algorithm is superior to PI control and sliding mode control in terms of speed and robustness.
作者
裴斯诺
董建园
PEI Si-nuo;DONG Jian-yuan(School of Mechanical and Electrical Engineering,Xi’an University of Architecture and Technology,Xi’an 710055,China)
出处
《控制工程》
CSCD
北大核心
2023年第3期529-535,共7页
Control Engineering of China
关键词
储能变流器
电网调峰
超螺旋控制率
超螺旋滑模控制
Power conversion system
peak load regulation of power grid
super screw control rate
super-twisting sliding mode control
