面向分频传输系统的Y-MMC自适应反步控制策略  

Adaptive Backstepping Control Strategy for Y-type Modular Multilevel Converter Facing Fractional Frequency Transmission Systems

作　　者：李洪伟 徐学帅 熊晓川 渠博岗 程启明 LI Hongwei;XU Xueshuai;XIONG Xiaochuan;QU Bogang;CHENG Qiming(Pu’er Power Supply Bureau of China Southern Power Grid Yunnan Power Grid Company,Pu’er 665099,China;School of Automation Engineering,Shanghai Electric Power University,Shanghai 200090,China)

机构地区：[1]中国南方电网云南电网公司普洱供电局,云南普洱665099 [2]上海电力大学自动化工程学院,上海200090

出　　处：《智慧电力》2024年第12期35-42,共8页Smart Power

基　　金：国家自然科学基金资助项目(62303301);上海市电站自动化技术重点实验室项目(13DZ2273800)。

摘　　要：针对Y型模块化多电平转换器(Y-MMC)在常规比例积分(PI)控制策略下鲁棒性和适应性不高问题,提出Y-MMC的非线性自适应反步控制(ABC)策略。首先,根据Y-MMC的拓扑结构,建立Y-MMC数学模型;然后,详细论述Y-MMC的ABC控制策略的设计过程,并证明了系统的稳定性;最后,在Simulink软件平台上搭建Y-MMC仿真系统进行仿真验证,将所提ABC控制策略与无源性控制(PBC)、PI控制2种策略进行比较,验证了在3种不同工况下Y-MMC的ABC控制策略的有效性和优越性。Targeting the problems of the low robustness and adaptability of Y-shaped modular multilevel converter(Y-MMC)under conventional proportion integral(PI)control strategy,the paper proposes a nonlinear adaptive backstepping control(ABC)strategy for Y-MMC.Firstly,a Y-MMC mathematical model is established according to the topology structure of Y-MMC.Then the design process of ABC strategy for Y-MMC is discussed in detail,and the stability of the system is proved.Finally,a Y-MMC simulation system is built on Simulink software platform for simulation verification.The proposed ABC strategy is compared with passivity-based control(PBC)and PI control strategies to verify the effectiveness and superiority of ABC strategy for Y-MMC under three different operating conditions.

关 键 词：分频传输系统 海上风电 Y-MMC转换器 ABC控制 

分 类 号：TM614[电气工程—电力系统及自动化]