孙熙晨,林旭梅,张明鹏

• 1:中共山东省委机关政务保障中心
• 2:青岛理工大学信息与控制工程学院

摘要(Abstract)：

针对模块化级联H桥逆变器配置单相有源前端整流器故障时三相输入功率不平衡问题，设计了一种新颖的前端H模块故障容错控制策略。首先隔离故障H桥模块，然后布局输入功率和直流电压的控制，确保在模块故障的情况下输出最大电压和功率。同时，通过基于AR坐标变换的电流控制，维持正常并网电流。系统施加容错控制后，系统中每个模块的直流侧电压和并网电流均得到很好调节，并保持了最大容量。利用单相有源前端级联H桥逆变器样机开展了实验研究，测试结果表明所设计的新型控制策略可有效实现系统故障容错运行。

关键词(KeyWords)： 级联H桥逆变器;单相有源前端;模块故障;电流控制;故障容错控制

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金资助项目（61703226）

作者(Author): 孙熙晨,林旭梅,张明鹏

DOI: 10.19635/j.cnki.csu-epsa.000959

参考文献(References)：

• [1]李永东，徐杰彦，杨涵棣，等(Li Yongdong,Xu Jieyan,Yang Handi,et al).多电平变换器拓扑结构综述及展望(Overview and prospect of multilevel converter topology)[J].电机与控制学报(Electric Machines and Control),2020,24(9):1-12.
• [2]陈仲，孙健博，许亚明，等(Chen Zhong,Sun Jianbo,Xu Yaming,et al).采用输出周期脉冲循环的级联H桥型逆变器功率均衡方法(Power balance method of cascaded H-bridge inverter based on pulse circulation in output period)[J].电工技术学报(Transactions of China Electrotechnical Society),2020,35(4):827-838.
• [3]华明，管松敏，朱永亮(Hua Ming,Guan Songmin,Zhu Yongliang).电网电压不平衡下星形级联H桥STAT-COM的三相直流电压偏离控制策略(Three-phase DCvoltage shift control strategy under unbalanced grid voltage for star-connected cascaded H-bridge STATCOM)[J].电源学报(Journal of Power Supply),2020,18(4):165-171.
• [4]张彼德，孔令瑜，彭丽维，等(Zhang Bide,Kong Lingyu,Peng Liwei,et al).级联H桥多电平逆变器故障的多尺度OGLPE特征提取方法(Fault feature extraction method for cascaded H-bridge multi-level inverter based on multi-scale OGLPE)[J].高电压技术(High Voltage Engineering),2020,46(8):2732-2739.
• [5]王付胜，窦盛，陈韬，等(Wang Fusheng,Dou Sheng,Chen Tao,et al).一种级联H桥光伏逆变器的开关管故障诊断方法(A method of switch tube fault diagnosis for cascaded H-bridge photovoltaic inverter)[J].电力电子技术(Power Electronics),2020,54(11):69-72.
• [6]Correa P,Pacas M,Rodriquez J.Modulation strategies for fault-tolerant operation of H-bridge multilevel inverters[C]//IEEE International Symposium on Industrial Electronics.Montreal,Canada,2006:1589-1594.
• [7]Lezana P,Rodriguez J,Oyarzun D A.Cascaded multilevel inverter with regeneration capability and reduced number of switches[J].IEEE Trans on Industrial Electronics,2008,55(3):1059-1066.
• [8]张雪垠，徐永海，肖湘宁(Zhang Xueyin,Xu Yonghai,Xiao Xiangning).适用于中高压配电网的高功率密度谐振型级联H桥固态变压器(A high power density resonance cascaded H-bridge solid-state transformer for medium and high voltage distribution network)[J].电工技术学报(Transactions of China Electrotechnical Society),2018,33(2):310-321.
• [9]许运华，王清，孟红秀(Xu Yunhua,Wang Qing,Meng Hongxiu).电网畸变级联H桥逆变器控制研究(Control research for cascaded H-bridge inverter under grid distortion)[J].电气传动(Electric Drive),2019,49(10):44-47.
• [10]Oka T,Kusunoki H,Tsukakoshi M,et al.Active front-end topology for 5 level medium voltage drive system with isolated DC bus[C]//International Power Electronics Conference.Hiroshima,Japan,2014:2330-2335.
• [11]Yoo J M,Jung H S,Sul S K,et al.DC link voltage control of single phase back-to-back converter for medium voltage motor drive[C]//International Power Electronics and Motion Control Conference.Hefei,China,2016:3043-3049.
• [12]Bahrani B,Rufer A,Kenzelmann S,et al.Vector control of single-phase voltage-source converters based on fictive-axis emulation[J].IEEE Trans on Industry Applications,2011,47(2):831-840.
• [13]林海雪(Lin Haixue).电能质量指标的完善化及其展望(Perfecting power quality indices and prospect)[J].中国电机工程学报(Proceedings of the CSEE),2014,34(29):5073-5097.
• [14]余永奎，李华，刘俊峰(Yu Yongkui,Li Hua,Liu Junfeng).基于固定频率二阶广义积分器的单相锁频环(Single phase frequency-locked loop based on fixed-frequency second-order generalized integrator)[J].电力系统及其自动化学报(Proceedings of the CSU-EPSA),2020,32(9):86-93.
• [15]李珊，张喜玲，封佳池(Li Shan,Zhang Xiling,Feng Jiachi).基于改进SOGI的二倍频锁相在APF中的应用(Application of double frequency phase-locking in APFbased on improved SOGI)[J].电力电容器与无功补偿(Power Capacitor&Reactive Power Compensation),2019,40(1):29-34.