{"title":"基于改进型扩展状态观测器的线性同步电机电流解耦控制","authors":"Peng Leng, Jie Li, Peichang Yu, Lianchun Wang, Tanyi Qiu, Qiang Chen","doi":"10.1007/s00202-024-02644-w","DOIUrl":null,"url":null,"abstract":"<p>Linear synchronous motors, with advantages such as high thrust density, fast speed, and strong dynamic response capabilities, are widely used in industrial automation, aerospace, military, transportation, and other fields. The use of vector control in linear synchronous motors can achieve static decoupling of current, but the dynamic coupling relationship still exists. As the speed increases, the impact of dynamic coupling becomes increasingly severe, leading to a decrease in the dynamic performance of the system. Traditional current decoupling control methods, such as current feedback decoupling control and current deviation decoupling control, are sensitive to motor parameters and cannot solve the current decoupling problem caused by changes in inductance parameters during motor operation. Therefore, this paper proposes a current decoupling control strategy based on an improved extended state observer (ESO). By observing the coupling term using the improved ESO and combining it with feedforward control for corresponding compensation, current decoupling control is achieved without relying on accurate inductance parameters, thereby reducing the sensitivity of the strategy to parameters. Furthermore, the stability of the improved ESO was demonstrated using Lyapunov stability theory in the paper. Simulation and experiments have verified that the current decoupling control strategy based on the improved ESO can effectively reduce the dynamic coupling in vector control, enhance the control performance, and significantly improve the system’s robustness.</p>","PeriodicalId":50546,"journal":{"name":"Electrical Engineering","volume":null,"pages":null},"PeriodicalIF":1.6000,"publicationDate":"2024-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Current decoupling control of linear synchronous motor based on improved extended state observer\",\"authors\":\"Peng Leng, Jie Li, Peichang Yu, Lianchun Wang, Tanyi Qiu, Qiang Chen\",\"doi\":\"10.1007/s00202-024-02644-w\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Linear synchronous motors, with advantages such as high thrust density, fast speed, and strong dynamic response capabilities, are widely used in industrial automation, aerospace, military, transportation, and other fields. The use of vector control in linear synchronous motors can achieve static decoupling of current, but the dynamic coupling relationship still exists. As the speed increases, the impact of dynamic coupling becomes increasingly severe, leading to a decrease in the dynamic performance of the system. Traditional current decoupling control methods, such as current feedback decoupling control and current deviation decoupling control, are sensitive to motor parameters and cannot solve the current decoupling problem caused by changes in inductance parameters during motor operation. Therefore, this paper proposes a current decoupling control strategy based on an improved extended state observer (ESO). By observing the coupling term using the improved ESO and combining it with feedforward control for corresponding compensation, current decoupling control is achieved without relying on accurate inductance parameters, thereby reducing the sensitivity of the strategy to parameters. Furthermore, the stability of the improved ESO was demonstrated using Lyapunov stability theory in the paper. Simulation and experiments have verified that the current decoupling control strategy based on the improved ESO can effectively reduce the dynamic coupling in vector control, enhance the control performance, and significantly improve the system’s robustness.</p>\",\"PeriodicalId\":50546,\"journal\":{\"name\":\"Electrical Engineering\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":1.6000,\"publicationDate\":\"2024-08-21\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Electrical Engineering\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://doi.org/10.1007/s00202-024-02644-w\",\"RegionNum\":4,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"ENGINEERING, ELECTRICAL & ELECTRONIC\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Electrical Engineering","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1007/s00202-024-02644-w","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
Current decoupling control of linear synchronous motor based on improved extended state observer
Linear synchronous motors, with advantages such as high thrust density, fast speed, and strong dynamic response capabilities, are widely used in industrial automation, aerospace, military, transportation, and other fields. The use of vector control in linear synchronous motors can achieve static decoupling of current, but the dynamic coupling relationship still exists. As the speed increases, the impact of dynamic coupling becomes increasingly severe, leading to a decrease in the dynamic performance of the system. Traditional current decoupling control methods, such as current feedback decoupling control and current deviation decoupling control, are sensitive to motor parameters and cannot solve the current decoupling problem caused by changes in inductance parameters during motor operation. Therefore, this paper proposes a current decoupling control strategy based on an improved extended state observer (ESO). By observing the coupling term using the improved ESO and combining it with feedforward control for corresponding compensation, current decoupling control is achieved without relying on accurate inductance parameters, thereby reducing the sensitivity of the strategy to parameters. Furthermore, the stability of the improved ESO was demonstrated using Lyapunov stability theory in the paper. Simulation and experiments have verified that the current decoupling control strategy based on the improved ESO can effectively reduce the dynamic coupling in vector control, enhance the control performance, and significantly improve the system’s robustness.
期刊介绍:
The journal “Electrical Engineering” following the long tradition of Archiv für Elektrotechnik publishes original papers of archival value in electrical engineering with a strong focus on electric power systems, smart grid approaches to power transmission and distribution, power system planning, operation and control, electricity markets, renewable power generation, microgrids, power electronics, electrical machines and drives, electric vehicles, railway electrification systems and electric transportation infrastructures, energy storage in electric power systems and vehicles, high voltage engineering, electromagnetic transients in power networks, lightning protection, electrical safety, electrical insulation systems, apparatus, devices, and components. Manuscripts describing theoretical, computer application and experimental research results are welcomed.
Electrical Engineering - Archiv für Elektrotechnik is published in agreement with Verband der Elektrotechnik Elektronik Informationstechnik eV (VDE).