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,International Transactions on Electrical Energy Systems

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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
International Transactions on Electrical Energy Systems ( IF 1.9 ) Pub Date : 2021-01-10 , DOI: 10.1002/2050-7038.12612
Mahdi Saadatmand ₁ , Babak Mozafari ₁ , Gevork B. Gharehpetian ₂ , Soodabeh Soleymani ₁

Affiliation

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.

中文翻译：

大型光伏电站中用于智能电网中LFO阻尼的电力系统稳定器和基于广域测量的分数阶PID控制器的最佳协调调整

近年来，大型光伏（PV）农场（LPF）的安装正在全球范围内扩展。由于向电力系统中添加了LPF，并提高了其渗透水平，因此，它们应能够与电力系统中的其他设备配合使用，承担常规电厂的最常见任务。通过电力系统稳定器（PSSs）抑制低频振荡（LFO）被视为这些常见任务之一。因此，LPF必须能够与PSS配合使LFO衰减。本文提出了一种新的电力系统LFO阻尼方法，该方法基于广域测量分数阶比例积分微分（WMFOPID）控制器作为同步发电机LPF和PSS的辅助控制器的最佳协调。最佳协作WMFOPID控制器的性能评估是在智能两区域电力系统中进行的，并且在LFO阻尼方面与其他控制器进行了比较。仿真结果表明，与非协调情况相比，最优协调WMFOPID控制器具有更好的性能，并确定了新提出的LFO阻尼方法的有效性。结果还表明，与以前的控制器相比，最优WMFOPID控制器具有较高的鲁棒性，可应对电力系统中的一些不确定性。仿真结果表明，与非协调情况相比，最优协调WMFOPID控制器具有更好的性能，并确定了新提出的LFO阻尼方法的有效性。结果还表明，与以前的控制器相比，最优WMFOPID控制器具有较高的鲁棒性，可应对电力系统中的一些不确定性。仿真结果表明，与非协调情况相比，最优协调WMFOPID控制器具有更好的性能，并确定了新提出的LFO阻尼方法的有效性。结果还表明，与以前的控制器相比，最优WMFOPID控制器具有较高的鲁棒性，可应对电力系统中的一些不确定性。

更新日期：2021-02-02

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