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Energies 2014, 7(3), 1288-1299; doi:10.3390/en7031288
Article

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

,
* ,
 and
Department of Electrical Engineering, Tsinghua University, Beijing 100084, China
* Author to whom correspondence should be addressed.
Received: 23 October 2013 / Revised: 13 February 2014 / Accepted: 28 February 2014 / Published: 4 March 2014
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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 state estimation; parameter error identification; Lagrange multiplier
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).
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Guo, Y.; Wu, W.; Zhang, B.; Sun, H. A Fast Solution for the Lagrange Multiplier-Based Electric Power Network Parameter Error Identification Model. Energies 2014, 7, 1288-1299.

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