Transactions of China Electrotechnical Society  2020, Vol. 35 Issue (5): 1106-1117    DOI: 10.19595/j.cnki.1000-6753.tces.190351
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Affine Power Flow Algorithm for AC/DC Systems with Voltage Source Converter
Du Pingjing1, Yang Ming1, Cao Liangjing2, Zhai Hefeng3, Yang Jiajun1
1. Key Laboratory of Power System Intelligent Dispatch and Control of Ministry of Education Shandong University Jinan 250061 China;
2. State Grid Jibei Electric Power Company Limited Beijing 100053 China;
3. State Key Laboratory of HVDC of Electric Power Research Institute of China Southern Power Grid Guangzhou 510663 China

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Abstract  In this paper, an affine arithmetic based AC/DC system power flow algorithm is proposed to provide a conservative estimation result when the injection power of the system is uncertain. The impacts of each uncertain variable on the system state variables can also be calculated. Firstly, the affine calculation method of the trigonometric function was proposed. And then the uncertain power flow model of the AC/DC system with voltage source converter (VSC) based on affine arithmetic was established. The VSC nodes were equivalent to different types of AC nodes and DC nodes respectively to correspond the solutions of AC and DC power flow models. Furthermore, the fast-decoupled method was used to solve the sequential AC/DC affine power flow. Finally, the effectiveness and rapidity of the proposed algorithm were verified by case studies. And the impacts of the uncertain variables on the system state variables of AC/DC systems were also be given.
Key wordsUncertainty analysis      affine power flow calculation      voltage source converter      AC/DC system     
Received: 01 April 2019      Published: 12 March 2020
PACS: TM744  
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Du Pingjing
Yang Ming
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Zhai Hefeng
Yang Jiajun
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Du Pingjing,Yang Ming,Cao Liangjing等. Affine Power Flow Algorithm for AC/DC Systems with Voltage Source Converter[J]. Transactions of China Electrotechnical Society, 2020, 35(5): 1106-1117.
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