Adaptive Back-stepping Stability Control Strategy for MMC Based on Legendre Polynomial
In view of the poor stability control performance and frequent operation faults of the flexible HVDC transmission system due to the parameter changes of system dynamic model structure caused by serious signal interference or device temperature rise during the operation of the modular multilevel conv...
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| Format: | Article |
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State Grid Energy Research Institute
2022-03-01
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| Series: | Zhongguo dianli |
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| Online Access: | https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.202101098 |
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| author | Lei XU Xiangyang XIA Huabing JING Yixuan LIU Yedan HE Haigan YI |
| author_facet | Lei XU Xiangyang XIA Huabing JING Yixuan LIU Yedan HE Haigan YI |
| author_sort | Lei XU |
| collection | DOAJ |
| description | In view of the poor stability control performance and frequent operation faults of the flexible HVDC transmission system due to the parameter changes of system dynamic model structure caused by serious signal interference or device temperature rise during the operation of the modular multilevel converter(MMC), an adaptive back-stepping stability control strategy is proposed based on Legendre polynomial. Firstly a dynamic model is established in a static a-b-c coordinate system, and the Legendre polynomial, which has advantages of simple structure and no modeling, is used to approximately compensate for the error value caused by the parameter changes in MMC, thus eliminating its effects on dynamic model. Then, the back-stepping control theory is used to select the state variables, construct the Lyapunov function, and obtain the control variables that meet the requirements of Lyapunov stability. Finally, simulation verification is carried out through PSCAD/EMTDC, which shows that the control strategy proposed in this paper has better control ability and robustness than the conventional PI control strategy. |
| format | Article |
| id | doaj-art-4d42ba6b26af45ec9a069eec3ee05520 |
| institution | OA Journals |
| issn | 1004-9649 |
| language | zho |
| publishDate | 2022-03-01 |
| publisher | State Grid Energy Research Institute |
| record_format | Article |
| series | Zhongguo dianli |
| spelling | doaj-art-4d42ba6b26af45ec9a069eec3ee055202025-08-20T02:05:19ZzhoState Grid Energy Research InstituteZhongguo dianli1004-96492022-03-01553182710.11930/j.issn.1004-9649.202101098zgdl-11-xuleiAdaptive Back-stepping Stability Control Strategy for MMC Based on Legendre PolynomialLei XU0Xiangyang XIA1Huabing JING2Yixuan LIU3Yedan HE4Haigan YI5College of Electrical and Information Engineering, Changsha University of Science & Technology, Changsha 410114, ChinaCollege of Electrical and Information Engineering, Changsha University of Science & Technology, Changsha 410114, ChinaZhuzhou CRRC Electromechanical Technology Co., Ltd., Zhuzhou 412005, ChinaCollege of Electrical and Information Engineering, Changsha University of Science & Technology, Changsha 410114, ChinaCollege of Electrical and Information Engineering, Changsha University of Science & Technology, Changsha 410114, ChinaCollege of Electrical and Information Engineering, Changsha University of Science & Technology, Changsha 410114, ChinaIn view of the poor stability control performance and frequent operation faults of the flexible HVDC transmission system due to the parameter changes of system dynamic model structure caused by serious signal interference or device temperature rise during the operation of the modular multilevel converter(MMC), an adaptive back-stepping stability control strategy is proposed based on Legendre polynomial. Firstly a dynamic model is established in a static a-b-c coordinate system, and the Legendre polynomial, which has advantages of simple structure and no modeling, is used to approximately compensate for the error value caused by the parameter changes in MMC, thus eliminating its effects on dynamic model. Then, the back-stepping control theory is used to select the state variables, construct the Lyapunov function, and obtain the control variables that meet the requirements of Lyapunov stability. Finally, simulation verification is carried out through PSCAD/EMTDC, which shows that the control strategy proposed in this paper has better control ability and robustness than the conventional PI control strategy.https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.202101098modular multilevel converterdynamic modelback-stepping methodadaptive controllegendre polynomial |
| spellingShingle | Lei XU Xiangyang XIA Huabing JING Yixuan LIU Yedan HE Haigan YI Adaptive Back-stepping Stability Control Strategy for MMC Based on Legendre Polynomial Zhongguo dianli modular multilevel converter dynamic model back-stepping method adaptive control legendre polynomial |
| title | Adaptive Back-stepping Stability Control Strategy for MMC Based on Legendre Polynomial |
| title_full | Adaptive Back-stepping Stability Control Strategy for MMC Based on Legendre Polynomial |
| title_fullStr | Adaptive Back-stepping Stability Control Strategy for MMC Based on Legendre Polynomial |
| title_full_unstemmed | Adaptive Back-stepping Stability Control Strategy for MMC Based on Legendre Polynomial |
| title_short | Adaptive Back-stepping Stability Control Strategy for MMC Based on Legendre Polynomial |
| title_sort | adaptive back stepping stability control strategy for mmc based on legendre polynomial |
| topic | modular multilevel converter dynamic model back-stepping method adaptive control legendre polynomial |
| url | https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.202101098 |
| work_keys_str_mv | AT leixu adaptivebacksteppingstabilitycontrolstrategyformmcbasedonlegendrepolynomial AT xiangyangxia adaptivebacksteppingstabilitycontrolstrategyformmcbasedonlegendrepolynomial AT huabingjing adaptivebacksteppingstabilitycontrolstrategyformmcbasedonlegendrepolynomial AT yixuanliu adaptivebacksteppingstabilitycontrolstrategyformmcbasedonlegendrepolynomial AT yedanhe adaptivebacksteppingstabilitycontrolstrategyformmcbasedonlegendrepolynomial AT haiganyi adaptivebacksteppingstabilitycontrolstrategyformmcbasedonlegendrepolynomial |