A Fast Solution for the Lagrange Multiplier-Based Electric Power Network Parameter Error Identification Model

Ye Guo, Wenchuan Wu, Boming Zhang and Hongbin Sun
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Ye Guo: Department of Electrical Engineering, Tsinghua University, Beijing 100084, China
Wenchuan Wu: Department of Electrical Engineering, Tsinghua University, Beijing 100084, China
Boming Zhang: Department of Electrical Engineering, Tsinghua University, Beijing 100084, China
Hongbin Sun: Department of Electrical Engineering, Tsinghua University, Beijing 100084, China

Energies, 2014, vol. 7, issue 3, 1-12

Abstract: The Lagrange multiplier-based method is an effective network parameter error identification method. However, two full matrices with high-dimensions are involved in the calculation procedure; these create huge computational burdens for large-scale power systems. To solve this problem, a fast solution is proposed in this paper, where special treatment techniques for full matrices are used to dramatically improve the calculation efficiency. A practical parameter error identification program has been developed and used in many electric power control centers. In this paper, the results for test systems and on-site applications are given, which show that the proposed approach is very efficient.

Keywords: state estimation; parameter error identification; Lagrange multiplier (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2014
References: View complete reference list from CitEc
Citations: View citations in EconPapers (4)

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