中文摘要:简要分析海上风电柔性直流输电技术应用及变流器关键技术特点，设计基于柔性高压直流(HVDC)输电的风力发电机集中控制并网变流器主电路拓扑结构，基于电流峰值控制的三电平直流升压变换器双梯形波补偿方法，并利用滞环宽度可调的滞环比较器进行电流跟踪控制。仿真研究表明，该方法具有变流器功率管开关频率固定、减少开关应力及开关损耗、提高传输效率的特点，有助于减少开关器件电压应力和电抗器电流脉动值，提高系统运行的稳定性和可靠性。
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