An Impedance-based Parameter Design Method for Active Damping of Load Converter Station in MTDC Distribution System

作     者：Pengwei Chen Wenmeng Zhao Xin Chen Wenwei Jiang Pengwei Chen;Wenmeng Zhao;Xin Chen;Wenwei Jiang

作者机构：IEEE Jiangsu Key Laboratory of New Energy Generation and Power ConversionCollege of Automation EngineeringNanjing University of Aeronautics and AstronauticsNanjingChina 

出 版 物：《Journal of Modern Power Systems and Clean Energy》 (现代电力系统与清洁能源学报（英文）)

年 卷 期：2022年第10卷第5期

页      面：1423-1436页

核心收录：

学科分类：0711[理学-系统科学] 0808[工学-电气工程] 080802[工学-电力系统及其自动化] 08[工学] 0701[理学-数学] 

基　　金：supported in part by the National Natural Science Foundation of China (No. 52007080) the China Postdoctoral Science Foundation (No.2020TQ0142) the Opening Foundation of State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources (No.LAPS21008)。 

主　　题：Impedance modeling order reduction active compensator damping factor sensitivity 

摘      要：To achieve the efficient application of impedance analysis in the stability assessment and enhancement of multiterminal DC distribution systems, this paper proposes the DCside reduced-order impedance models with power control and AC voltage control, respectively, by taking the load converter station as the object. By using the DC-side current as the feedforward state, the active compensator applied to the load converter station with two control modes is also derived as well as the corresponding reduced-order impedance models. Combined with the reduced-order impedance models, a method based on damping factor sensitivity is further proposed to design the parameters of the derived active compensators. The verification results in the frequency domain and time domain demonstrate the accuracy of the reduced-order impedance and the effectiveness of the proposed compensator parameter design method.