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Distribution transformer sizing in active distribution systems embedded with rooftop solar photovoltaic

嵌入屋顶太阳能光伏的主动配电系统中的配电变压器尺寸

基本信息

批准号：
477261-2014
负责人：
Ibrahim, WalidMorsi
金额：
$ 1.82万
依托单位：
University of Ontario Institute of Technology
依托单位国家：
加拿大
项目类别：
Engage Grants Program
财政年份：
2014
资助国家：
加拿大
起止时间：
2014-01-01 至 2015-12-31
项目状态：
已结题

来源：
https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=565721
关键词：
Distribution transformer sizing active distribution

项目摘要

Legacy electric power distribution system is characterized by unidirectional power flow from centralized generation to end use consumers. With the growing interest in renewable energy sources and in particular rooftop solar photovoltaic in the residential sector, bi-directional power flow emerges which become one of the main characteristics of active electric power distribution system. Greater Sudbury Hydro Inc. (GSHI) is one of many municipalities in Ontario in which the penetration of rooftop solar photovoltaic continues to grow into its networks. To date, GSHI base their design of distribution transformer sizing on the hypothesis that all residential homes consumes power only (i.e., unidirectional power flow). However, when considering rooftop solar photovoltaic, the power flow becomes bi-directional which requires a change in the size of the transformer. By determining the power requirements which involves bidirectional power flow, the transformer size can be properly selected to allow more residents to be served. This proposed project aims to determine the optimal number of residential customers to be served by standard distribution transformer sizes to be used by GSHI. The outcome of this project will help GSHI to efficiently use the limited capital and enable large penetration of rooftop solar photovoltaic into their networks.

传统配电系统的特点是从集中发电到终端用户的单向电力流。随着人们对可再生能源特别是住宅领域屋顶太阳能光伏发电的兴趣日益增长，双向功率流出现，这成为有源电力分配系统的主要特征之一。大萨德伯里水电公司（GSHI）是安大略许多城市之一，屋顶太阳能光伏发电的渗透继续增长到其网络中。迄今为止，GSHI基于所有住宅仅消耗电力的假设来设计配电Transformer尺寸（即，单向功率流）。然而，当考虑屋顶太阳能光伏发电时，功率流变成双向的，这需要改变Transformer的尺寸。通过确定涉及双向功率流的功率需求，可以适当地选择Transformer尺寸，以允许更多的居民被服务。本拟议项目旨在确定GSHI使用的标准配电Transformer尺寸所服务的住宅客户的最佳数量。该项目的成果将帮助GSHI有效利用有限的资金，并使屋顶太阳能光伏发电大规模渗透到他们的网络中。