Control strategy of achieving input voltage sharing and output voltage sharing for input-series-output-series inverters system

Tianzhi Fang, Xinbo Ruan, Chi Kong Tse

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

10 Citations (Scopus)

Abstract

This paper explores a new configuration for modular inverters system, namely, input-series output-series (ISOS) connected inverters system, which is very suitable for high input voltage and high output voltage applications. The control objective of such system is to achieve input voltage sharing (IVS) and output voltage sharing (OVS) among the constituent modules. This paper first reveals the relationship between IVS and OVS and points out that IVS and OVS can be simultaneously achieved only by the application of a compound strategy, which involves controlling IVS as well as controlling the magnitudes or phases of the modules' output voltages. Then, a practical implementation of the compound strategy, which combines a method of IVS with synchronization of the output phase angles, is proposed. The decoupling and design of the two control loops are discussed. Finally, experimental results are presented to verify the theoretical analysis.
Original languageEnglish
Title of host publication2009 IEEE Energy Conversion Congress and Exposition, ECCE 2009
Pages908-915
Number of pages8
DOIs
Publication statusPublished - 28 Dec 2009
Event2009 IEEE Energy Conversion Congress and Exposition, ECCE 2009 - San Jose, CA, United States
Duration: 20 Sep 200924 Sep 2009

Conference

Conference2009 IEEE Energy Conversion Congress and Exposition, ECCE 2009
CountryUnited States
CitySan Jose, CA
Period20/09/0924/09/09

Keywords

  • Input voltage sharing loop
  • Input-series-output-series connection
  • Phase synchronization
  • Voltage sharing

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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