DOI:10.35833/MPCE.2021.000096 |
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An Impedance-based Parameter Design Method for Active Damping of Load Converter Station in MTDC Distribution System |
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Net amount: 500 |
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Author:
Chen Pengwei, Zhao Wenmeng, Chen Xin, Jiang Wenwei
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Author Affiliation:
Jiangsu Key Laboratory of New Energy Generation and Power Conversion, College of Automation Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, China
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Foundation: |
This work was supported in part by the National Natural Science Foundation of China (No. 52007080), the China Postdoctoral Science Foundation (No. 2020TQ0142), and the Opening Foundation of State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources (No. LAPS21008). |
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Abstract: |
To achieve the efficient application of impedance analysis in the stability assessment and enhancement of multi-terminal DC distribution systems, this paper proposes the DC-side 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. |
Keywords: |
Impedance modeling ; order reduction ; active compensator ; damping factor ; sensitivity |
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Received:February 01, 2021
Online Time:2022/09/24 |
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