A control system for improved battery utilization in a PV-powered peak-shaving system

Conference Record of the Twenty Fifth IEEE Photovoltaic Specialists Conference - 1996 Pub Date : 1996-05-13 DOI:10.1109/PVSC.1996.564427

E. Palomino, J. Stevens, J. Wiles

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引用次数: 9

Abstract

Photovoltaic (PV) power systems offer the prospect of allowing a utility company to meet part of the daily peak system load using a renewable resource. Unfortunately, some utilities have peak system-load periods that do not match the peak production hours of a PV system. Adding a battery energy storage system to a grid-connected PV power system will allow dispatching the stored solar energy to the grid at the desired times. Batteries, however, pose system limitations in terms of energy efficiency, maintenance, and cycle life. A new control system has been developed, based on available PV equipment and a data acquisition system, that seeks to minimize the limitations imposed by the battery system while maximizing the use of PV energy. Maintenance requirements for the flooded batteries are reduced, cycle life is maximized, and the battery is operated over an efficient range of states of charge. This paper presents design details and initial performance results on one of the first installed control systems of this type.

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一种用于提高光伏调峰系统中电池利用率的控制系统

光伏(PV)电力系统提供了一种前景，允许公用事业公司使用可再生资源来满足部分每日高峰系统负荷。不幸的是，一些公用事业的峰值系统负荷期与光伏系统的峰值生产时间不匹配。将电池储能系统添加到并网的光伏发电系统中，可以在所需的时间将存储的太阳能调度到电网中。然而，电池在能源效率、维护和循环寿命方面构成了系统限制。基于现有的光伏设备和数据采集系统，开发了一种新的控制系统，旨在最大限度地减少电池系统施加的限制，同时最大限度地利用光伏能源。水浸电池的维护要求降低，循环寿命最大化，电池在有效的充电状态范围内运行。本文介绍了该类型控制系统的设计细节和初步性能结果。

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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Conference Record of the Twenty Fifth IEEE Photovoltaic Specialists Conference - 1996

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