A Quantitative Stability Evaluation Method of VSC for Optimizing Control Parameters and Extending Stability Boundary to Avoid Oscillations
Source abstract
Abstract
Oscillations caused by the interaction between voltage source converters (VSCs) and weak grids are vital threats to the stability of power systems. Determining the appropriate parameters for the control of VSCs is essential to prevent the occurrence of oscillations in advance. To achieve this goal, a quantitative evaluation method of system stability for VSCs is proposed in this article to specify the stability boundary of control parameters. Then, an active damping controller for current control and a parameter optimization method for the phase-locked loop (PLL) is proposed, and the related parameters are designed based on the guidance of the proposed evaluation method. With planting the parameters optimization in the control of VSC, the stability boundary of control parameters of VSC is extended, so that the stability of VSC can be significantly improved. Finally, simulations are presented to verify the effectiveness of the theoretical analysis.
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Research context
OpenAlex topics: Microgrid Control and Optimization · Power Systems and Renewable Energy · Optimal Power Flow Distribution
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
State Grid Sichuan Electric Power Research Institute, Chengdu 610041, China
State Grid Sichuan Electric Power Company, Chengdu 610041, China
State Grid Smart Grid Research Institute, Beijing 102209, China
School of Electrical Engineering, Southwest Jiaotong University, Chengdu 611756, China
Funding
State Grid Sichuan Electric Power Company of China · China Postdoctoral Science Foundation
References (33)
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