微电网光伏发电系统的储能控制

Zhongqiu Wang, Xi Li, Gengyin Li, Ming Zhou, K. Lo
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引用次数: 26

摘要

使用可再生能源的分布式发电(DG)具有不稳定的输出,这可能对现有的电力系统产生负面影响。为了减少上述影响,我们需要开发一种能量控制系统,通过安装在微电网中的单个DG来控制输出。本文首先设计了一个光伏并网系统,介绍了系统各部分的工作原理和潮流控制策略。光伏电池阵列的输出功率受光强和温度变化的影响较大,因此储能设计具有重要意义。然后,以电池为储能装置,根据电池的特性设计充放电控制策略;最后,通过基于PSCAD/EMTDC平台建立的仿真模型,验证了储能控制策略的可行性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Energy storage control for the Photovoltaic generation system in a micro-grid
Distributed generation (DG) that uses renewable energy sources has an unstable output and this can negatively affect existing electric power systems. In order to reduce above impact, we need to develop an energy control system to control the output through individual DG installed in a micro-grid. First, this paper designs a grid-connected Photovoltaic (PV) system and introduces the operation principle of the various parts as well with the control strategy of the power flow. The design of energy storage is of great significance as the output power of PV cells array is greatly affected by the light intensity and the temperature change. Then, it uses the battery as the energy storage device and designs the charge-discharge control strategy according to the characteristics of the battery. Finally it verifies the feasibility of the energy storage control strategy through the simulation models which is built based on the PSCAD/EMTDC platform.
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