Kalman-filter-based state estimation for system information exchange in a multi-bus islanded microgrid

Yanbo Wang, Yanjun Tian, Xiongfei Wang, Zhe Chen, Yongdong Tan

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

12 Citations (Scopus)
801 Downloads (Pure)

Abstract

State monitoring and analysis of distribution systems has become an urgent issue, and state estimation serves as an important tool to deal with it. In this paper, a Kalman-Filter-based state estimation method for a multi-bus islanded microgrid is presented. First, an overall small signal model with consideration of voltage performance and load characteristic is developed. Then, a Kalman-Filter-Based state estimation method is proposed to estimate system information instead of using communication facilities, where the estimator of each DG unit can dynamically obtain information of all the DG units as well as network voltages just by local voltage and current itself. The proposed estimation method is able to provide accurate states information to support system operation without any communication facilities. Simulation and experimental results are given for validating the proposed small signal model and state estimation method.
Original languageEnglish
Title of host publicationProceedings of the 7th IET International Conference on Power Electronics, Machines and Drives (PEMD 2014)
Number of pages6
PublisherInstitution of Engineering and Technology
Publication dateApr 2014
Pages1-6
ISBN (Electronic)978-1-84919-815-8
DOIs
Publication statusPublished - Apr 2014
Event7th IET International Conference on Power Electronics, Machines and Drives, PEMD 2014 - Manchester, United Kingdom
Duration: 8 Apr 201410 Apr 2014

Conference

Conference7th IET International Conference on Power Electronics, Machines and Drives, PEMD 2014
Country/TerritoryUnited Kingdom
CityManchester
Period08/04/201410/04/2014
SponsorALTERA, Cummins Generator Technologies, Emerson Electric Co., et al., Knowledge Transfer Network KTN, OMICRON
SeriesI E T Conference Publication Series
ISSN0537-9989

Keywords

  • Droop control
  • Information exchange
  • Islanded microgrid
  • State estimation

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