机械与电子2024，Vol.42Issue(6)：16-21,6.
面向大容量风电并网的VSC-MTDC功率协调控制
Power Coordination Control Strategy of VSC-MTDC System for Large-scale Wind Power Grid Connection
摘要
Abstract
The voltage source converter-based multi-terminal DC power transmission system(VSC-MTDC)has become the primary choice for achieving long-distance power transmission and grid connec-tion of large capacity wind power.This paper mainly focuses on the improved power coordination control strategy of VSC-MTDC systems with large-scale wind farms.Firstly,this paper analyzes the influence of sag coefficient on active power distribution when large-scale wind power is connected to the grid,and points out that the fixed droop coefficient has drawbacks such as the possibility of priority grid power shortage and lack of flexibility in allocating active power.To address these issues,this paper proposes a co-ordinated control strategy based on the combination of master-slave control and adaptive droop control,which formulates three control modes according to the wind power situation,so as to realize the flexible distribution of wind power.Finally,a four-terminal flexible DC transmission system for wind power con-nected to the grid is built on MATLAB/Simulink,and the simulation results verify the feasibility and effec-tiveness of the proposed control strategy.关键词
多端柔性直流输电/有功功率分配/协调控制策略/自适应下垂控制/风电并网Key words
VSC-MTDC/active power allocation/coordination control strategy/adaptive droop control/wind power grid connection分类
信息技术与安全科学引用本文复制引用
于滨,傅晓帆,龙凌,熊国江..面向大容量风电并网的VSC-MTDC功率协调控制[J].机械与电子,2024,42(6):16-21,6.基金项目
国家自然科学基金资助项目(52167007) （52167007）
贵州大学勘察设计研究院有限责任公司创新基金(贵大勘察[2022]03号) （贵大勘察[2022]03号）
