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基于TSMC直驱永磁同步发电机的有功功率平滑控制策略

, PP. 146-153

Keywords: 双级矩阵变换器,有功功率平滑,模糊控制,直驱式风力发电系统,永磁同步发电机

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Abstract:

由于风能的随机波动性和风力发电机自身的特性使得风力发电机组输出的有功功率随风速的变化而波动,影响风力发电机输出的电能质量。在推导出风电机组传递函数的基础上,对风电机组的稳定性进行了分析。并针对现有功率平滑控制中存在的功率平滑性和系统稳定性之间的矛盾,提出一种利用模糊控制器对双级矩阵变换器(TSMC)逆变级参考有功功率自修正的有功功率平滑控制策略。该方法兼顾输出有功功率的平滑性和风电机组的稳定性,能够保证风电机组在风速下降较快的情况下能够稳定运行。在Matlab/Simulink仿真平台上搭建了TSMC风电系统模型,仿真结果表明了上述方法的可行性和有效性。

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