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Analysis of Stability and Dynamic Limitations of a VSC Terminal with DC Voltage Droop Control

Abstract : This paper addresses the problem of analyzing the dynamic limitations of a VSC terminal with DC voltage droop control. Thanks to its fast response, DC voltage droop control is usually used to adjust the DC voltage in case of power imbalance. To ensure the stability of the VSC terminal, the dynamics between the dq currents (il,dq) and the DC voltage (uc) must be well distinguished. Therefore, the choice of the droop control gain Ku and the dq current control gains Kdq is still a challenging problem. First, we assume that there exist Ku and Kdq such that a slow and a fast dynamics can be imposed on uc and il,dq, respectively. Then, we propose a novel methodology based on separation of dynamics to prove the existence of these control gains. Subsequently, a detailed stability analysis is carried out via Lyapunov theory, from which a necessary condition and a sufficient condition are derived for the control gains. To verify this methodology, numerical simulations are carried out in MATLAB/SIMULINK.
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Submitted on : Wednesday, March 31, 2021 - 10:22:25 PM
Last modification on : Thursday, June 17, 2021 - 3:18:49 AM
Long-term archiving on: : Thursday, July 1, 2021 - 7:08:37 PM


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  • HAL Id : hal-01102578, version 1


Yijing Chen, Gilney Damm, Abdelkrim Benchaib, Françoise Lamnabhi-Lagarrigue. Analysis of Stability and Dynamic Limitations of a VSC Terminal with DC Voltage Droop Control. 53rd IEEE Annual Conference on Decision and Control (CDC 2014), Dec 2014, Los Angeles, United States. ⟨hal-01102578⟩



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