中压直流输电直流区域配电综合电力系统静态状态估计方法研究

doi:10.19595/j.cnki.1000-6753.tces.170787

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Abstract The use of a network structure of medium-voltage DC transmission and DC-zonal electric distribution can significantly increase the power density and decrease the torque density of the vessel integrated power system. Because of difference in control strategies for the network structure and equipment, traditional state estimation methods for land power systems can not be applied directly to the integrated power system. This paper presents a model for the static estimation of the integrated power system and proposes a state estimation method for the whole system. According to real-time requirements, fast estimation methods for the subsystems are studied, and different interface variables are adopted independently to analyse their influence on the subsystems. A further decoupling of PQ through the DC zonal distribution system for implementing the fast state estimation aims to improve the practicability of the algorithm. Simulations prove the proposed fast state-estimation algorithm to be effective.

Key words： Integrated power system medium-voltage DC transmission DC zonal distribution system state estimation fast state-estimation algorithm

Received: 06 June 2017 Published: 12 July 2018

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TM74

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	Articles by authors
	Xiao Runlong
	Wang Gang
	Li Zimeng
	Xiong Youxing

Cite this article:

Xiao Runlong,Wang Gang,Li Zimeng等. Static Estimation of the Integrated Power System with Medium Voltage DC and DC Zonal Distribution System[J]. Transactions of China Electrotechnical Society, 2018, 33(13): 3023-3033.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.170787 OR https://dgjsxb.ces-transaction.com/EN/Y2018/V33/I13/3023

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