Abstract

This article proposes a voltage regulation scheme for distributed energy resource-connected distribution networks based on static synchronous compensator to compensate for both short-term and long-term voltage sags. The proposed voltage regulation scheme provides a fast and precise control on the nodal voltage, with no need to load shedding, capacitor switching, transformers, or power management schemes. The principles supporting the proposed voltage regulation scheme are discussed and the effectiveness of the proposed control is demonstrated through time-domain simulation of a two-unit test distribution network in the PSCAD/EMTDC software environment.

中文翻译：

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STATCOM 在 DER 连接的配电网络中缓解电压暂降

摘要

本文提出了一种基于静态同步补偿器的分布式能源接入配电网电压调节方案，以补偿短期和长期电压暂降。所提出的电压调节方案提供了对节点电压的快速而精确的控制，无需减载、电容器切换、变压器或电源管理方案。讨论了支持所提出的电压调节方案的原理，并通过 PSCAD/EMTDC 软件环境中的两单元测试配电网络的时域仿真证明了所提出的控制的有效性。