Reactive power reserve optimization method for AC/DC hybrid receiving network based on multi-order trajectory sensitivity

doi:10.19781/j.issn.1673-9140.2022.01.009

Home > Archive>Volume 37, Issue 1, 2022 >74-81. DOI:10.19781/j.issn.1673-9140.2022.01.009

Reactive power reserve optimization method for AC/DC hybrid receiving network based on multi-order trajectory sensitivity
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                        10.19781/j.issn.1673-9140.2022.01.009
                    
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                        QI ZijieQI Zijie
College of Electric Power Engineering, Shanghai University of Electric Power, Shanghai 200090 , China
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CHEN TianhuaCHEN Tianhua
NARI Group Corporation(State Grid Electric Power Research Institute), Nanjing 210006 , China ；NARI Technology Co.Ltd., Nanjing 211106 , China ；State Key Laboratory of Smart Grid Protection and Control, Nanjing 211106 , China
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WANG BinWANG Bin
Department of Electrical Engineering, Tsinghua University, Beijing 100084 , China
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GE HuaichangGE Huaichang
Department of Electrical Engineering, Tsinghua University, Beijing 100084 , China
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CHEN JianhuaCHEN Jianhua
NARI Group Corporation(State Grid Electric Power Research Institute), Nanjing 210006 , China ；NARI Technology Co.Ltd., Nanjing 211106 , China ；State Key Laboratory of Smart Grid Protection and Control, Nanjing 211106 , China
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XU LufeiXU Lufei
NARI Group Corporation(State Grid Electric Power Research Institute), Nanjing 210006 , China ；NARI Technology Co.Ltd., Nanjing 211106 , China ；State Key Laboratory of Smart Grid Protection and Control, Nanjing 211106 , China
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Abstract:

During the process of the commutation failure in power grid, a large amount of dynamic reactive power are consumed. Once a commutation failure occurs, it affects the safe operation of the grideasily. Under the background, anreservereactive poweroptimization for AC-DC hybrid power gridsisproposed to reduce the risk of accidental DC commutation failure propagation. Firstly, a differential algebraic equation for the AC / DC hybrid system is established. The multi-order trajectory sensitivity of the system is obtainedon the basis of the first-order trajectory sensitivity. According to the current operating conditions of the power system, a dynamic reactive power reserve optimization model including a generator and a reactor is then established, and the optimal solution of the dynamic reactive power reserve optimization is solved. Finally, a practical system ismodeledto verify the feasibility and effectiveness of the method.

Key words:AC-DC hybrid power grid;commutation failure;algebraic differential equation;trajectory sensitivity;dynamic reactive reserve

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齐子杰,陈天华,王彬,葛怀畅,陈建华,徐陆飞.基于多阶轨迹灵敏度的交直流混联受端电网无功储备优化方法[J].电力科学与技术学报英文版,2022,37(1):74-81. QI Zijie, CHEN Tianhua, WANG Bin, GE Huaichang, CHEN Jianhua, XU Lufei. Reactive power reserve optimization method for AC/DC hybrid receiving network based on multi-order trajectory sensitivity[J]. Journal of Electric Power Science and Technology,2022,37(1):74-81.

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Online: April 01,2022
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