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首页> 外文期刊>Power Electronics, IET >Reciprocal effects of the distorted wind turbine source and the shunt active power filter: full compensation of unbalance and harmonics under 'capacitive non-linear load' condition
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Reciprocal effects of the distorted wind turbine source and the shunt active power filter: full compensation of unbalance and harmonics under 'capacitive non-linear load' condition

机译：变形的风力涡轮机源和并联有源滤波器的相互影响：在“电容性非线性负载”条件下完全补偿不平衡和谐波

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Available compensating algorithms for shunt active power filters (SAPFs) and unified power quality conditioner perform somehow improperly in practice under certain circumstances. Typical examples could be any distorted `non-linear loads?? showing low impedances at certain frequencies; also, there are technological limitations for the SAPF in modulating switching frequencies, including microcontroller processing speed, the employed control and modulation techniques, delays and so on. This study proposes an advanced universal power quality conditioning system (AUPQS) to fine tune the available solutions for generating purely sinusoidal wind turbine-end currents under both distorted-unbalanced load-terminal voltages and non-linear load conditions (capacitive loads leave much worse consequences than those of the inductive). It is shown that both series and SAPF are capable of full compensation of microgrid by the SAPF using the advanced generalised theory of instantaneous power. Meanwhile, the resultant source currents could be somehow non-sinusoidal. However, the proposed AUPQS will be able to fully eliminate the consequence of voltage asymmetry and unbalanced waveforms on the SAPF, generated because of the wind turbine operation by performing certain corrections on these solutions. Moreover, an independent single-phase rectifier is proposed at the load-end to regulate DC-link voltage. Effectiveness of the proposed AUPQS is confirmed by Simulink simulations.
机译：在某些情况下，并联有源功率滤波器（SAPF）和统一功率质量调节器的可用补偿算法在实践中会以某种方式不适当地执行。典型的例子可能是任何扭曲的“非线性负载”？在某些频率下显示低阻抗；同样，SAPF在调制开关频率方面存在技术限制，包括微控制器处理速度，采用的控制和调制技术，延迟等。这项研究提出了一种先进的通用电能质量调节系统（AUPQS），以微调在畸变的不平衡负载端子电压和非线性负载条件下产生纯正弦波涡轮机端电流的可用解决方案（容性负载会带来更糟糕的后果比归纳法）。结果表明，使用先进的瞬时功率广义理论，SAPF系列和SAPF都能够完全补偿微电网。同时，合成的源电流可能会是非正弦的。但是，通过对这些解决方案进行某些校正，建议的AUPQS将能够完全消除由于风力发电机运行而在SAPF上产生的电压不对称和波形不平衡的后果。此外，在负载端提出了一个独立的单相整流器来调节直流母线电压。 Simulink仿真证实了所提出的AUPQS的有效性。

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    《Power Electronics, IET》 |2013年第8期|1668-1682|共15页
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