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A robust three-phase state estimation algorithm for distribution networks
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DOI：10.1016/S0378-7796(00)00088-2.png)
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摘要
En 中文
Electric power utilities are installing distribution automation systems (DAS) for better management and control of the distribution networks during the recent past. The success of DAS, largely depends on the availability of reliable database of the control centre and thus requires an efficient state estimation (SE) solution technique. This paper presents an efficient and robust three-phase SE algorithm for application to radial distribution networks. This method exploits the radial nature of the network and uses forward and backward propagation scheme to estimate the line flows, node voltage and loads at each node, based on the measured quantities. The SE cannot be executed without adequate number of measurements. The extension of the method to the network observability analysis and bad data detection is also discussed. The proposed method has been tested to analyze several practical distribution networks of various voltage levels and also having high R/X ratio of lines. The results for a typical network are presented for illustration purposes. (C) 2000 Elsevier Science S.A. All rights reserved.
Keyword:
state estimation
distribution networks
electric power
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期刊
IF:
4.2
论文数:
1.2W
被引数:
2.2W
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