基于SMES-SAPF的无源动态演化和滑模控制策略  

Passive Dynamic Evolution and Sliding Mode Control Strategy Based on SMES-SAPF

作　　者：齐国庆 周建萍 茅大钧 从帆平 黄祖繁 QI Guoqing;ZHOU Jianping;MAO Dajun;CONG Fanping;HUANG Zufan(College of Automation Engineering,Shanghai University of Electric Power,Shanghai 200090,China)

机构地区：[1]上海电力大学自动化工程学院,上海市200090

出　　处：《电力建设》2023年第10期84-94,共11页Electric Power Construction

基　　金：国家自然科学基金项目(61275038);上海市“科技创新行动计划”地方院校能力建设专项(19020500700)。

摘　　要：针对传统并联有源电力滤波器在不同负载接入时存在补偿精度低、直流侧电压无法保持稳定运行的问题,将超导磁储能(superconducting magnetic energy storage,SMES)装置与并联有源电力滤波器相结合构成新型拓扑结构,即超导磁储能型有源电力滤波器(superconducting magnetic energy storage shunt active power filter,SMES-SAPF),且基于该拓扑结构提出了无源动态演化控制和滑模控制策略。首先,根据超导磁储能型有源电力滤波器的数学模型建立了基于欧拉拉格朗日模型的无源动态演化控制器,提高了系统整体的鲁棒性和抗干扰能力;其次,采用滑模控制消除直流侧电压在不同负载接入时引起的电压超调和波动,从而改善直流侧电压的稳压性能。最后,在非线性负载、不平衡负载和脉冲负载三种负载接入以及其他运行状态下,通过仿真实验验证了SMES-SAPF及其控制系统有较强的补偿精度和抗干扰能力,能更有效地解决不同负载接入时所引起的电能质量问题。When different loads are connected,the traditional shunt active power filter(SAPF)has a low compensation accuracy,and its DC-side voltage cannot maintain stable operation.Based on the aforementioned problems,a new topology,the superconducting magnetic energy storage shunt active power filter(SMES-SAPF),is adopted in this study.This topology comprises a superconducting magnetic energy storage(SMES)device and an SAPF.Based on this topology,a passive dynamic evolution control and sliding mode control strategies are proposed.First,a passive dynamic evolution controller based on the Euler–Lagrange model is established according to the mathematical model of the SMES-SAPF,thereby improving the overall robustness and anti-interference ability of the system.Second,sliding mode control is used to eliminate the voltage overshoot and fluctuation caused by different connected loads,thereby improving the voltage regulation performance of the DC-side voltage.Finally,simulation experiments are conducted under three load conditions(nonlinear,unbalanced,and pulse)and other operating conditions.Simulation experiments showed that the SMES-SAPF and its control system had strong compensation accuracy and anti-interference ability that could more effectively solve the power quality problems caused by different load accesses.

关 键 词：超导磁储能(SMES) 并联有源电力滤波器(SAPF) 欧拉拉格朗日模型 无源动态演化控制 滑模控制 

分 类 号：TM761[电气工程—电力系统及自动化]