电网不同运行方式下MMC无源双积分滑模控制策略研究  

Research on passive-based control-dual integral sliding-mode control of MMC under different operating modes of power grid

作　　者：林金阳 张翼 黄荣杰 林航 LIN Jinyang;ZHANG Yi;HUANG Rongjie;LIN Hang(Microelectronics Technology Research Center,College of Electronic Electrical and Physical Engineering,Fujian University of Technology,Fuzhou 350100,China)

机构地区：[1]福建理工大学电子电气与物理学院福建理工大学微电子技术研究中心,福州350100

出　　处：《重庆理工大学学报(自然科学)》2025年第2期243-252,共10页Journal of Chongqing University of Technology:Natural Science

基　　金：福建省自然科学基金面上资助项目(2022J05197);福建理工大学科研发展基金专项(GY-Z23086)。

摘　　要：为了使模块化多电平换流器(modular multilevel converter,MMC)内环电流控制能更好地改善系统控制性能以及满足系统的动态响应,提出了一种无源双积分滑模控制(passive-based control-dual integral sliding-mode control,PBC-DISMC)方法。该方法在基于MMC的欧拉-拉格朗日模型的基础上,将无源理论应用于内环电流控制,采用双曲正切函数作为饱和函数以满足滑模控制平滑切换的要求,建立基于双积分滑模面的价值函数并结合最近电平调制对MMC子模块电容进行滑模预测以得到最优的切换控制。采用Matlab/Simulink进行仿真验证,结果表明,PBC-DISMC在电网不同运行方式下具有良好的抗干扰能力和稳态性能。To improve the system control performance and meet the dynamic response of the system by the inner current loop control of the modular multilevel converter(MMC),we propose a passive dual integral sliding mode control(PBC-DISMC)method.Based on the Euler-Lagrange model of MMC,this method applies the passive theory to the inner current control and combines the advantages of dual integral sliding mode control.It uses the hyperbolic tangent function as the saturation function to meet the requirements of smooth switching of sliding mode control and establishes a value function based on the dual integral sliding mode surface and combines the nearest level modulation to perform sliding mode prediction on the MMC sub-module capacitor to obtain the optimal switching control.Matlab/Simulink is employed for simulation verification.Our results show that PBC-DISMC has good anti-interference ability and delivers steady-state performance under different operating modes of the power grid.

关 键 词：模块化多电平换流器 无源理论 无源双积分滑模控制 内环电流控制 滑模预测控制 

分 类 号：TM46[电气工程—电器]