{"title":"Parallel operation control technique of voltage source inverters in UPS","authors":"Duan Shanxu, Meng Yu, X. Jian, K. Yong, Chen Jian","doi":"10.1109/PEDS.1999.792823","DOIUrl":null,"url":null,"abstract":"The control technique of a parallel operation system of voltage source inverters with other inverters or with utility source has been applied in many fields, especially in uninterruptible power supply (UPS). The multi-module UPS can flexibly implement expansion of power system capacities. Furthermore, it can be used to build up a parallel redundant system in order to improve the reliability of whole power system operation. This paper analyses voltage and current status of a voltage source inverter in parallel, as well as the principle of parallel redundant system. Several control strategies according to the load-sharing problem in parallel control systems are also presented, from which the research of distributed-logic-control to realize parallel operation of four 3 kVA UPSs based on TMS320F240, a kind of real time digital signal processor (DSP), is discussed and proposed in detail.","PeriodicalId":254764,"journal":{"name":"Proceedings of the IEEE 1999 International Conference on Power Electronics and Drive Systems. PEDS'99 (Cat. No.99TH8475)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1999-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"99","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings of the IEEE 1999 International Conference on Power Electronics and Drive Systems. PEDS'99 (Cat. No.99TH8475)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/PEDS.1999.792823","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 99
Abstract
The control technique of a parallel operation system of voltage source inverters with other inverters or with utility source has been applied in many fields, especially in uninterruptible power supply (UPS). The multi-module UPS can flexibly implement expansion of power system capacities. Furthermore, it can be used to build up a parallel redundant system in order to improve the reliability of whole power system operation. This paper analyses voltage and current status of a voltage source inverter in parallel, as well as the principle of parallel redundant system. Several control strategies according to the load-sharing problem in parallel control systems are also presented, from which the research of distributed-logic-control to realize parallel operation of four 3 kVA UPSs based on TMS320F240, a kind of real time digital signal processor (DSP), is discussed and proposed in detail.
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