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

Journal of Modern Power Systems and Clean Energy 2022年第5期10卷 1423-1436页

作者： Pengwei Chen Wenmeng Zhao Xin Chen Wenwei Jiang IEEE Jiangsu Key Laboratory of New Energy Generation and Power Conversion College of Automation EngineeringNanjing University of Aeronautics and AstronauticsNanjingChina

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.

关键词： Impedance modeling order reduction active compensator damping factor sensitivity

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Adaptive Robust Control of Thyristor Controlled Series Compensation

Adaptive Robust Control of Thyristor Controlled Series Compe...

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2011 Chinese Control and Decision Conference（CCDC）

作者： Yan Wang1,2,Yuanwei Jing2 and Weilun Zhao1,21.Shenyang Institute of Engineering,Shenyang 110136,China2.College of Information Science and Engineering,Northeastern University,Shenyang 110004,China

This paper deals with third-order nonlinear system model identification applied when modelling the relation of firing angle and equivalent reactance of a thyristor controlled series compensation (TCSC).The mathematical representation chosen is nonlinear autoregressive moving average with exogenous inputs due to its capability in modelling nonlinear systems and in using prior information.The methodology for incorporation of prior knowledge is presented,and particular attention is given to the case of using information about resonant static response.

关键词： TCSC Backstepping FACTS Adaptive control HVDC active compensator

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