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首页> 外文会议>12th Brazilian Power Electronics Conference >Control of a wind turbine trapezoidal EMF PMSG under network asymmetrical faults
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Control of a wind turbine trapezoidal EMF PMSG under network asymmetrical faults

机译：网络非对称故障下的风机梯形EMF PMSG控制

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摘要

The permanent magnet synchronous generators (PMSG) used in wind turbines usually are machines with trapezoidal electromotive force (EMF) waveforms. The “instantaneous active and reactive power” theory is used to control the nonsinusoidal EMF permanent magnet generator. The objective is to reduce fluctuations of the generator's torque and power, and this was demonstrated in a previous paper by comparison with the traditional dq control. The grid-side converter control uses the dq technique, since the network voltages are sinusoidal. The low voltage ride through (LVRT) requirements are considered in the design of both the generator side and grid side converter control in the case of asymmetrical faults. The generator-side converter is responsible for maintaining constant the DC link voltage and not to the network side converter as usual. Simulations using Matlab/Simulink show the effectiveness of the techniques proposed here in two cases: one where the wind turbine experiences a step increase in the wind speed and the other when asymmetrical voltage sag occur at the network connection terminals.
机译：风力涡轮机中使用的永磁同步发电机（PMSG）通常是具有梯形电动势（EMF）波形的机器。 “瞬时有功和无功功率”理论用于控制非正弦电动势永磁发电机。目的是减少发电机转矩和功率的波动，这在上一篇论文中通过与传统dq控制进行比较得到了证明。电网侧变频器控制使用dq技术，因为电网电压为正弦波。在非对称故障的情况下，发电机侧和电网侧变流器控制的设计均考虑了低压穿越（LVRT）要求。发电机侧的转换器负责保持恒定的直流母线电压，而不是照常提供给网络侧的转换器。使用Matlab / Simulink进行的仿真显示了在两种情况下此处提出的技术的有效性：一种情况是风力涡轮机的风速逐步增加，另一种情况是在网络连接端子处出现不对称的电压骤降。

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