Development of an FPGA-based system for real-time simulation of photovoltaic modules
Development of an FPGA-based system for real-time simulation of photovoltaic modules
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DOI：
10.1016/j.mejo.2008.05.014
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发表时间：
2009-07-01
影响因子：
2.2
通讯作者：
Tzitzilonis, Vasileios
中科院分区：
文献类型：
--
作者：
Koutroulis, Eftichios;Kalaitzakis, Kostas;Tzitzilonis, Vasileios
光伏(PV)模拟器对于光伏能源生产系统部件(如电池充电器、DC/AC逆变器等)的运行评估是必不可少的，以避免耗时且昂贵的现场测试过程。介绍了一种基于现场可编程门阵列的新型实时光伏模拟器的研制。该系统由降压型DC/DC功率转换器组成，由基于FPGA的单元采用脉宽调制(PWM)原理进行控制。系统操作员能够定义要模拟的光伏组件类型和所选光伏组件运行的环境条件。由于基于现场可编程门阵列的控制单元具有高时钟速度的特点，该设计方法增强了系统的快速原型能力，并使功率转换器的体积和成本得以减小。实验结果表明，该方法能够准确再现被测光伏组件的电流-电压特性，平均准确率为1.03%。(C)2008爱思唯尔有限公司。保留所有权利。
Photovoltaic (PV) simulators are indispensable for the operational evaluation of PV energy production system components (e.g. battery chargers, DC/AC inverters, etc.), in order to avoid the time-consuming and expensive field-testing process. In this paper, the development of a novel real-time PV simulator based on Field Programmable Gate Arrays (FPGAs), is presented. The proposed system consists of a Buck-type DC/DC power converter, which is controlled by an FPGA-based unit using the Pulse Width Modulation (PWM) principle. The system operator is able to define both the PV module type to be simulated and the environmental conditions under which the selected PV module operates. The proposed design method enhances the rapid system prototyping capability and enables the reduction of the power converter size and cost due to the high clock speed feature of the FPGA-based control unit. The experimental results indicate that, using the proposed method, the PV module current-voltage characteristics examined are reproduced with an average accuracy of 1.03%. (C) 2008 Elsevier Ltd. All rights reserved.