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首页> 外文期刊>European transactions on electrical power engineering >Optimal coordinated tuning of power system stabilizers and wide-area measurement-based fractional-order PID controller of large-scale PV farms for LFO damping in smart grids
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Optimal coordinated tuning of power system stabilizers and wide-area measurement-based fractional-order PID controller of large-scale PV farms for LFO damping in smart grids

机译：电力系统稳定器的最佳协调调谐和大型光伏电池的大型光伏电池广域测量的小组级PID控制器，用于智能电网的LFO阻尼

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摘要

In recent years, the installation of large-scale photovoltaic (PV) farms (LPFs) is expanding around the world. Due to the addition of LPFs to the power system and increasing their penetration level, they should be able to undertake the most common tasks of conventional power plants in coordinated with other devices in the power system. Damping of low-frequency oscillation (LFO) through the power system stabilizers (PSSs) is regarded as one of these common tasks. Therefore, the LPF must be able to damp the LFO in coordinated with the PSSs. This paper proposes a new method for LFO damping in power system which is based on optimal coordination of wide-area measurement-based fractional-order proportional-integral-derivative (WMFOPID) controller as an auxiliary controller for LPF and PSSs of synchronous generators. The performance evaluation of the optimal coordinated WMFOPID controller is performed in a smart two-area power system and is compared with other controllers in terms of LFO damping. The simulation results show the better performance of the optimal coordinated WMFOPID controller compared to the uncoordinated case and determine the effectiveness of the novel proposed method for LFO damping. The results also show the high robustness of the optimal WMFOPID controller compared to previous controllers, against some uncertainties in the power system.
机译：近年来，大规模光伏（PV）农场（LPFS）的安装在全球范围内。由于将LPF添加到电力系统并增加它们的渗透水平，它们应该能够在与电力系统中的其他设备协调的情况下进行传统发电厂的最常见任务。通过电力系统稳定器（PSS）阻尼低频振荡（LFO）被视为这些常见任务之一。因此，LPF必须能够在与PSS协调的协调中抑制LFO。本文提出了一种新的电力系统LFO阻尼方法，其基于广域测量的分数比例 - 积分 - 积分 - 积分衍生物（WMFOPID）控制器作为用于LPF和同步发电机PSS的辅助控制器的电力系统。最佳协调的WMFOPID控制器的性能评估在智能双区域电力系统中执行，并在LFO阻尼方面与其他控制器进行比较。仿真结果表明，与未协调的案例相比，最佳协调的WMFOPID控制器的性能更好，并确定了新颖的LFO阻尼方法的有效性。结果还显示了与先前的控制器相比，最佳WMFoPID控制器的高稳健性，以防止电力系统中的一些不确定性。

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