{"title":"Flux optimization strategy for efficiency enhancement of induction motor–driven electric vehicle under dynamic operating conditions","authors":"Manish Kumar, Bhavnesh Kumar, Asha Rani","doi":"10.1007/s12053-023-10149-x","DOIUrl":null,"url":null,"abstract":"<div><p>Energy-efficient electric transportation systems offer reduced power demand and also increase the runtime for a single charge. Efficiency of an electric vehicle can be enhanced up to certain extent by operating it with reduced flux level. However, straightforward minimization of flux level may lead to drive instability. Therefore, this paper presents a loss model control approach to minimize the losses by optimal weakening of the flux for the drive. Flux optimization is achieved with constraints and bounds on the key variables like stator current. The performance of an electric vehicle propelled by a poly-phase induction motor is analyzed with the proposed approach. The performance of the drive is also compared with rated rotor flux, differentially calculated rotor flux, copper loss, and core loss equalizing rotor flux estimator. The effectiveness of the proposed strategy is analyzed in terms of efficiency, transient behavior, power factor, and parameter sensitivity under various operating conditions.</p></div>","PeriodicalId":537,"journal":{"name":"Energy Efficiency","volume":"16 6","pages":""},"PeriodicalIF":3.2000,"publicationDate":"2023-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Energy Efficiency","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1007/s12053-023-10149-x","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENERGY & FUELS","Score":null,"Total":0}
引用次数: 0
Abstract
Energy-efficient electric transportation systems offer reduced power demand and also increase the runtime for a single charge. Efficiency of an electric vehicle can be enhanced up to certain extent by operating it with reduced flux level. However, straightforward minimization of flux level may lead to drive instability. Therefore, this paper presents a loss model control approach to minimize the losses by optimal weakening of the flux for the drive. Flux optimization is achieved with constraints and bounds on the key variables like stator current. The performance of an electric vehicle propelled by a poly-phase induction motor is analyzed with the proposed approach. The performance of the drive is also compared with rated rotor flux, differentially calculated rotor flux, copper loss, and core loss equalizing rotor flux estimator. The effectiveness of the proposed strategy is analyzed in terms of efficiency, transient behavior, power factor, and parameter sensitivity under various operating conditions.
期刊介绍：
The journal Energy Efficiency covers wide-ranging aspects of energy efficiency in the residential, tertiary, industrial and transport sectors. Coverage includes a number of different topics and disciplines including energy efficiency policies at local, regional, national and international levels; long term impact of energy efficiency; technologies to improve energy efficiency; consumer behavior and the dynamics of consumption; socio-economic impacts of energy efficiency measures; energy efficiency as a virtual utility; transportation issues; building issues; energy management systems and energy services; energy planning and risk assessment; energy efficiency in developing countries and economies in transition; non-energy benefits of energy efficiency and opportunities for policy integration; energy education and training, and emerging technologies. See Aims and Scope for more details.
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