Zhang Xuan, Kang Qing, Y. Wentao, Xing Jie, Li Feng, You Xiangan
{"title":"Power Assessment Indices of Solar Arrays under MPPT and DET methods for Spacecraft","authors":"Zhang Xuan, Kang Qing, Y. Wentao, Xing Jie, Li Feng, You Xiangan","doi":"10.1109/ESPC.2019.8932076","DOIUrl":null,"url":null,"abstract":"In order to measure power utilization ratio of solar arrays under Maximum Power Point Tracking(MPPT) and three different Direct Energy Transfer(DET) solutions quantitatively, this paper defines two power indices, energy loss percentage(ELP) and energy excess percentage(EEP), as the basis of satellite power system design. This paper also gives the calculation of these two indices based on the feature of joint-operation of PV and batteries, the control efficiency and the design margin. On the basis of ELP and EPP, two applicable cases of MPPT and DET architecture are analyzed. Computation results show that ELP of MPPT is better while EEP of DET is more competitive.","PeriodicalId":6734,"journal":{"name":"2019 European Space Power Conference (ESPC)","volume":"1 1","pages":"1-4"},"PeriodicalIF":0.0000,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2019 European Space Power Conference (ESPC)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ESPC.2019.8932076","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 2
Abstract
In order to measure power utilization ratio of solar arrays under Maximum Power Point Tracking(MPPT) and three different Direct Energy Transfer(DET) solutions quantitatively, this paper defines two power indices, energy loss percentage(ELP) and energy excess percentage(EEP), as the basis of satellite power system design. This paper also gives the calculation of these two indices based on the feature of joint-operation of PV and batteries, the control efficiency and the design margin. On the basis of ELP and EPP, two applicable cases of MPPT and DET architecture are analyzed. Computation results show that ELP of MPPT is better while EEP of DET is more competitive.
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