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A new algorithm for optimal measurement placement, observability analysis and harmonic state estimation in power systems

Rad, M. S ; Sharif University of Technology | 2013

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  1. Type of Document: Article
  2. DOI: 10.1109/PEDSTC.2013.6506762
  3. Publisher: 2013
  4. Abstract:
  5. Harmonic State Estimation (HSE) is a technique for identifying harmonic distributions in power systems with limited measurements. The main problem in HSE is the optimal placement of measurement meters such that the estimation error is minimized, while making the system fully observable. The second issue is the HSE method. This method must be accurate and fast enough in order to have an accurate HSE. This paper presents a new algorithm that uses minimum variance criterion (MVC) and a sequential method for optimal meters placement, SVD method for observability analysis and finally WLS method for harmonic estimation. The proposed method minimizes the number of measurement devices and the error of estimation at the same time and also makes the system fully observable. The proposed algorithm is tested on Mazandaran transmission network, Iran
  6. Keywords:
  7. Estimation error ; Harmonic state estimation ; Limited measurement ; Observability ; Optimal placement ; Power system ; Estimation errors ; Harmonic distribution ; Harmonic estimation ; Measurement device ; Observability analysis ; Optimal measurement placement ; Optimal placements ; Algorithms ; Optimization ; Power electronics ; Standby power systems ; State estimation ; Harmonic analysis
  8. Source: PEDSTC 2013 - 4th Annual International Power Electronics, Drive Systems and Technologies Conference ; 2013 , Pages 518-523 ; 9781467344845 (ISBN)
  9. URL: http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6506762