针对海上风力发电远距离传输问题，本文提出了基于模块化多电平的高压直流输电系统（MMC-HVDC）。文章首先介绍了MMC-HVDC的基本工作原理和数学模型，然后提出了一种新型的功率解耦控制算法和电容电压平衡控制策略；利用MATLAB/SIMULINK进行仿真研究，仿真结果表明，MMC-HVDC具有传输功率高，动态响应速度快等优点，是一种具有工程应用价值的高压直流输电拓扑。%This paper proposes a high voltage direct current (HVDC)system based on modular multilevel converter(MMC) for off-shore wind power. Firstly, this paper explains the operation principle and mathematical model of MMC-HVDC. Then, a novel power decoupling control strategy and a novel capacitor voltage-balancing control scheme are proposed respectively. Finally, MATLAB/SIMULINK simulations have verified the performance of proposed control strategy and MMC-HVDC may be a new circuit topology with significant engineering application value.
展开▼
