Voltage Optimization of Distribution Networks with Various Distributed PV Inverter Control Technologies

2023 13th International Conference on Power, Energy and Electrical Engineering (CPEEE) Pub Date : 2023-02-25 DOI:10.1109/CPEEE56777.2023.10217784

Hua Li, Xu-dong Li, Qi Dong, Shizhe Geng, Yu Zhao, Z. Jiao, J. Liu

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Abstract

With the continuous development of distributed energy resources in modern distribution systems, the distribution network has become volatile to voltage fluctuations induced by both the DERs and the loads. The control of inverters in distributed solar photovoltaic (PV) generators can perform reactive power support, but the voltage optimization of distribution networks still needs deep investigation. Therefore, a novel voltage optimization model of distribution networks with various distributed PV inverter control technologies is proposed in this paper. Firstly, the voltage optimization model for distribution networks with various distributed PV inverters is introduced, and different equality and inequality constraints for both grid-following and grid-forming inverter control technologies are modeled in detail. Then the nonlinear interior point method is used to solve the optimization model. Finally, several numerical case studies are performed on a modified IEEE 33-bus distribution network, in which the results validate that our model can be used for voltage optimization of distribution networks with various distributed PV inverter control technologies.

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基于分布式光伏逆变器控制技术的配电网电压优化

随着现代配电系统中分布式能源的不断发展，配电网已变得易受分布式电源和负荷引起的电压波动的影响。分布式太阳能光伏发电机组逆变器的控制可以提供无功支持，但配电网的电压优化仍需深入研究。为此，本文提出了一种采用多种分布式光伏逆变器控制技术的配电网电压优化模型。首先，介绍了多种分布式光伏逆变器配电网的电压优化模型，并对随网和成网逆变器控制技术的不同不等式约束进行了详细建模;然后采用非线性内点法求解优化模型。最后，在改进的IEEE 33总线配电网上进行了几个数值案例研究，结果验证了我们的模型可以用于各种分布式光伏逆变器控制技术的配电网电压优化。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2023 13th International Conference on Power, Energy and Electrical Engineering (CPEEE)

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