Transient Stability and Active Protection of Power Systems With Grid-Forming PV Power Plants
Transient Stability and Active Protection of Power Systems With Grid-Forming PV Power Plants
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光伏电站并网的电力系统暂态稳定与主动保护
DOI：
10.1109/tpwrs.2022.3165704
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发表时间：
2023-01
影响因子：
6.6
通讯作者：
Soummya Roy;H. V. Pico
中科院分区：
文献类型：
--
作者：
Soummya Roy;H. V. Pico
采用并网技术的光伏（PV）发电厂必须能够承受严重的干扰并保持运行。为了应对这一挑战，本文提出了一种光伏太阳能发电厂的并网策略，使他们能够穿越电力系统故障。这种能力是通过利用具有抗饱和功能的双轴比例积分调节器来实现的。本文还表明，太阳辐照度的波动会导致显着的直流母线电压的变化和电网形成的光伏发电厂的同步性的损失。因此，我们开发了一个积极的直流链路保护方法，这取决于太阳辐照度的估计。本文的贡献证明通过正序模拟的修改版本的WSCC 9-和IEEE 39-总线网格。
Photovoltaic (PV) power plants with grid-forming technology must withstand severe disturbances and remain operational. To address this challenge, this paper sets forth a grid-forming strategy for PV solar power plants so that they can ride through power system faults. This capability is accomplished by leveraging two-axis proportional-integral regulators with anti-windup functionality. This paper also demonstrates that fluctuations of solar irradiance can cause significant dc-link voltage variations and loss of synchronism of grid-forming PV plants. Hence, we develop an active dc-link protection method which depends on estimation of solar irradiance. The contributions of this paper are demonstrated via positive-sequence simulations of modified versions of the WSCC 9- and IEEE 39-bus grids.