高比例光伏接入的电力系统暂态过电压控制策略

王蒙; 张文朝; 汪莹; 柳顺楠; 王聪; 崔曦文

doi:10.19912/j.0254-0096.tynxb.2022-0847

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太阳能学报 ›› 2023, Vol. 44 ›› Issue (10) : 148-155. DOI: 10.19912/j.0254-0096.tynxb.2022-0847

高比例光伏接入的电力系统暂态过电压控制策略

王蒙¹, 张文朝², 汪莹¹, 柳顺楠², 王聪¹, 崔曦文²

作者信息 +

TRANSIENT OVERVOLTAGE CONTROL STRATEGY OF POWER SYSTEM CONSIDERING HIGH PROPORTION PHOTOVOLTAIC ACCESS

Wang Meng¹, Zhang Wenchao², Wang Ying¹, Liu Shunnan², Wang Cong¹, Cui Xiwen²

Author information +

文章历史 +

摘要

为确保高比例光伏接入的电力系统安全稳定运行,提出一种“整流站-光伏电站”暂态过电压分层控制策略。首先,对高比例光伏直流外送系统送端电网暂态过电压原理进行分析,建立“整流站-光伏电站”暂态过电压分层控制模型。然后,结合联合调用法和一致性算法对控制模型进行求解,通过整流站调相机参数优化控制和光伏逆变器无功回退分配控制对暂态过电压进行抑制。最后,以中国西北地区某高比例光伏电网为例,建立高比例光伏接入的直流外送系统实验仿真模型。算例结果分析表明,所提出的暂态过电压分层控制策略显著增强了系统的电压调节能力,提升了系统运行的可靠性。

Abstract

The paper proposes a "rectifier station-photovoltaic power station" transient overvoltage hierarchical control strategy. Firstly, the principle of transient overvoltage at the sending end of the high-proportion photovoltaic DC transmission system is analyzed, and a layered control model of transient overvoltage of "rectifier station-photovoltaic power station" is established. Then, combined with the joint calling method and the consistency algorithm, the control model is solved, and the transient overvoltage is suppressed through the optimization control of the rectifier station camera parameters and the reactive power back-off distribution control of the photovoltaic inverter. Finally, taking a high-proportion photovoltaic power grid in Northwest of our country as an example, an experimental simulation model of a DC transmission system with high-proportion photovoltaic access is established. The example analysis results show that the transient overvoltage hierarchical control strategy proposed in this paper massively enhances the regulation capability of the power system.

导出引用

王蒙, 张文朝, 汪莹, 柳顺楠, 王聪, 崔曦文. 高比例光伏接入的电力系统暂态过电压控制策略[J]. 太阳能学报. 2023, 44(10): 148-155 https://doi.org/10.19912/j.0254-0096.tynxb.2022-0847

Wang Meng, Zhang Wenchao, Wang Ying, Liu Shunnan, Wang Cong, Cui Xiwen. TRANSIENT OVERVOLTAGE CONTROL STRATEGY OF POWER SYSTEM CONSIDERING HIGH PROPORTION PHOTOVOLTAIC ACCESS[J]. Acta Energiae Solaris Sinica. 2023, 44(10): 148-155 https://doi.org/10.19912/j.0254-0096.tynxb.2022-0847

中图分类号： TM73

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