{"title":"异步电动机高性能转矩控制的动态过调制新策略","authors":"Dae-Woong Chung, S. Sul","doi":"10.1109/APEC.1999.749646","DOIUrl":null,"url":null,"abstract":"In this paper, a new dynamic overmodulation strategy is proposed for vector-controlled induction motor drive, and a comparison study with conventional schemes is described in an analytical manner. By considering voltage boundary of inverter and current dynamics of induction motor simultaneously, the proposed overmodulation scheme allocates the output voltage of the inverter so that synchronous d-axis voltage is diminished in proportion as reference voltage exceeds hexagon boundary. As a result, d-axis current of vector-controlled induction motor is decreased in the overmodulation region, which secures the control voltage margin and improves the dynamic performance of torque control. The conspicuous improvement of the proposed scheme over conventional ones is observed in both simulated and experimental results.","PeriodicalId":287192,"journal":{"name":"APEC '99. Fourteenth Annual Applied Power Electronics Conference and Exposition. 1999 Conference Proceedings (Cat. No.99CH36285)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1999-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"4","resultStr":"{\"title\":\"A new dynamic overmodulation strategy for high performance torque control of induction motor\",\"authors\":\"Dae-Woong Chung, S. Sul\",\"doi\":\"10.1109/APEC.1999.749646\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In this paper, a new dynamic overmodulation strategy is proposed for vector-controlled induction motor drive, and a comparison study with conventional schemes is described in an analytical manner. By considering voltage boundary of inverter and current dynamics of induction motor simultaneously, the proposed overmodulation scheme allocates the output voltage of the inverter so that synchronous d-axis voltage is diminished in proportion as reference voltage exceeds hexagon boundary. As a result, d-axis current of vector-controlled induction motor is decreased in the overmodulation region, which secures the control voltage margin and improves the dynamic performance of torque control. The conspicuous improvement of the proposed scheme over conventional ones is observed in both simulated and experimental results.\",\"PeriodicalId\":287192,\"journal\":{\"name\":\"APEC '99. Fourteenth Annual Applied Power Electronics Conference and Exposition. 1999 Conference Proceedings (Cat. No.99CH36285)\",\"volume\":\"1 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1999-03-14\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"4\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"APEC '99. Fourteenth Annual Applied Power Electronics Conference and Exposition. 1999 Conference Proceedings (Cat. No.99CH36285)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/APEC.1999.749646\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"APEC '99. Fourteenth Annual Applied Power Electronics Conference and Exposition. 1999 Conference Proceedings (Cat. No.99CH36285)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/APEC.1999.749646","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A new dynamic overmodulation strategy for high performance torque control of induction motor
In this paper, a new dynamic overmodulation strategy is proposed for vector-controlled induction motor drive, and a comparison study with conventional schemes is described in an analytical manner. By considering voltage boundary of inverter and current dynamics of induction motor simultaneously, the proposed overmodulation scheme allocates the output voltage of the inverter so that synchronous d-axis voltage is diminished in proportion as reference voltage exceeds hexagon boundary. As a result, d-axis current of vector-controlled induction motor is decreased in the overmodulation region, which secures the control voltage margin and improves the dynamic performance of torque control. The conspicuous improvement of the proposed scheme over conventional ones is observed in both simulated and experimental results.
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