{"title":"一种真正具有弱磁场能力的永磁交流电机结构","authors":"Andrew Shakal, Yuefeng Liao, T. Lipo","doi":"10.1109/ISIE.1993.268821","DOIUrl":null,"url":null,"abstract":"New doubly salient machines in which the field excitation is developed by stationary or mounted permanent magnets has recently been undergoing development at the University of Wisconsin. Because of the unique geometry of the stator, these permanent magnets are readily accessible. Therefore, for experimental purposes, simple iron blocks are used to 'short' a large portion of the permanent magnet flux and thus reduce the back EMF developed within the machine. However, for practical applications, field weakening schemes involving miniature linear actuators or high torque stepper motors are being explored. Preliminary experimental results show that a substantial reduction in the back EMF can be readily obtained thus lending credibility to the concept of weakening fields produced by stationary permanent magnets.<<ETX>>","PeriodicalId":267349,"journal":{"name":"ISIE '93 - Budapest: IEEE International Symposium on Industrial Electronics Conference Proceedings","volume":"38 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1993-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"58","resultStr":"{\"title\":\"A permanent magnet AC machine structure with true field weakening capability\",\"authors\":\"Andrew Shakal, Yuefeng Liao, T. Lipo\",\"doi\":\"10.1109/ISIE.1993.268821\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"New doubly salient machines in which the field excitation is developed by stationary or mounted permanent magnets has recently been undergoing development at the University of Wisconsin. Because of the unique geometry of the stator, these permanent magnets are readily accessible. Therefore, for experimental purposes, simple iron blocks are used to 'short' a large portion of the permanent magnet flux and thus reduce the back EMF developed within the machine. However, for practical applications, field weakening schemes involving miniature linear actuators or high torque stepper motors are being explored. Preliminary experimental results show that a substantial reduction in the back EMF can be readily obtained thus lending credibility to the concept of weakening fields produced by stationary permanent magnets.<<ETX>>\",\"PeriodicalId\":267349,\"journal\":{\"name\":\"ISIE '93 - Budapest: IEEE International Symposium on Industrial Electronics Conference Proceedings\",\"volume\":\"38 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1993-06-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"58\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"ISIE '93 - Budapest: IEEE International Symposium on Industrial Electronics Conference Proceedings\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ISIE.1993.268821\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"ISIE '93 - Budapest: IEEE International Symposium on Industrial Electronics Conference Proceedings","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ISIE.1993.268821","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A permanent magnet AC machine structure with true field weakening capability
New doubly salient machines in which the field excitation is developed by stationary or mounted permanent magnets has recently been undergoing development at the University of Wisconsin. Because of the unique geometry of the stator, these permanent magnets are readily accessible. Therefore, for experimental purposes, simple iron blocks are used to 'short' a large portion of the permanent magnet flux and thus reduce the back EMF developed within the machine. However, for practical applications, field weakening schemes involving miniature linear actuators or high torque stepper motors are being explored. Preliminary experimental results show that a substantial reduction in the back EMF can be readily obtained thus lending credibility to the concept of weakening fields produced by stationary permanent magnets.<>