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Modeling UPFC into Multi-Machine Power Systems

机译:将UPFC建模到多机动力系统中

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摘要

Modeling of unified power flow control (UPFC) into multi-machine power systems by Wang, published by IET, has been widely quoted by many researchers. However, the correctness of the derivation of its equations has not been strictly scrutinized. The model cannot properly represent power system networks in its current form and need to be corrected. In this paper, the model proposed by Wang is revisited and the equations re-derived obtaining different results. The corrected model was developed and tested on three-machine and New England power systems installed with a UPFC. The DC link capacitor voltage is controlled in UPFC by modulating the phase angle of the excitation transformer voltage. The effect of the controller in damping of the low-frequency oscillations is demonstrated by using the proposed correct model and the results are compared with model presented by Wang.
机译:由IET出版的Wang提出的将统一潮流控制(UPFC)建模到多机电源系统中的方法已被许多研究人员广泛引用。但是,尚未严格审查其方程式推导的正确性。该模型无法正确表示当前形式的电力系统网络,需要对其进行更正。在本文中,重新讨论了Wang提出的模型,并重新推导了方程,获得了不同的结果。校正后的模型是在装有UPFC的三机和新英格兰电力系统上开发和测试的。通过调制励磁变压器电压的相角,可在UPFC中控制直流母线电容器电压。通过使用所提出的正确模型证明了控制器对低频振荡的阻尼作用,并将结果与​​Wang提出的模型进行了比较。

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