Energy Storage Unit for Dynamic Voltage Support in Distribution Networks

2021 9th IEEE International Conference on Power Systems (ICPS) Pub Date : 2021-12-16 DOI:10.1109/ICPS52420.2021.9670110

B. R. Naidu, P. Bajpai, C. Chakraborty

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引用次数: 2

Abstract

The increasing participation of distributed energy resources in the low voltage distribution network prompt mandated grid-supporting activities from these entities during short-term disturbances. The primary idea of the work presented in this paper is to leverage the dynamic voltage support capability of the grid-connected energy storage units during voltage fault ride through conditions on the distribution network. Firstly, a detailed analysis about the role of energy storage units in providing dynamic voltage support for both low and high voltage disturbances is presented and the conditions for maximizing the voltage support are derived. Further, the dynamic voltage support oriented control strategy for the converters of the energy storage unit is presented in detail along with the state-of-charge management of the storage device. Finally, a simulation study considering a supercapacitor energy storage unit connected to the CIGRE European LV residential distribution test feeder is carried out using Matlab/Simulink to validate the proposed control strategy. The results assert the fact that the grid-connected energy storage units aid the network voltage during disturbances with the proposed control strategy within their design limits.

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配电网动态电压支持的储能单元

分布式能源越来越多地参与到低压配电网中，促使这些实体在短期干扰期间强制进行电网支持活动。本文工作的主要思想是利用并网储能单元在配电网电压故障穿越条件下的动态电压支持能力。首先，详细分析了储能单元对低电压和高电压扰动提供动态电压支持的作用，并推导了电压支持最大化的条件。在此基础上，详细介绍了储能单元变流器的动态电压支持控制策略以及储能装置的充电状态管理。最后，利用Matlab/Simulink进行了超级电容器储能单元与CIGRE欧洲低压住宅配电试验馈线连接的仿真研究，验证了所提出的控制策略。结果表明，并网储能单元在电网干扰时能够有效地控制电网电压，控制策略在其设计范围内。

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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2021 9th IEEE International Conference on Power Systems (ICPS)

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