Transformer-less unified power flow controller in medium voltage distribution networks
Transformer-less unified power flow controller in medium voltage distribution networks
复制标题
中压配电网无变压器统一潮流控制器
DOI：
10.1049/gtd2.12730
复制
发表时间：
2023
期刊：
影响因子：
--
通讯作者：
Abdelrahman M
中科院分区：
文献类型：
--
作者：
Abdelrahman M
无Transformer统一潮流控制器（UPFC）是一种电力电子设备，由串联和并联电压源换流器（VSC）组成，这些换流器不连接到公共直流母线。它可以控制中压（MV）配电网中的潮流，而无需接口变压器。因此，与传统的UPFC相比，在尺寸和成本上有显著的降低。本文研究了中压配电网中无Transformer-less UPFC的工作范围以及串联和并联变流器所需的额定功率。结果表明，Transformer‐less UPFC能够使用部分额定转换器提供有功功率控制。然而，其控制无功功率的能力受到变换器的额定电流的限制。通过软件仿真和硬件实验对分析进行了验证。
A transformer‐less unified power flow controller (UPFC) is a power electronic device consisting of series and shunt voltage source converters (VSCs) that are not connected to a common DC bus. It can control power flow in medium voltage (MV) distribution networks without the need for interfacing transformers. Hence there is a significant reduction in size and cost compared to a conventional UPFC. This paper investigates the operating range of a transformer‐less UPFC in an MV distribution network and the required power ratings of the series and shunt converters. The results showed that a transformer‐less UPFC is able to provide active power control using partially rated converters. However, its ability to control reactive power is limited by the current ratings of the converters. The analysis was verified using software simulation and hardware experiment.