期刊论文

A Method of Inverter Modeling in Photovoltatic System Based on Finite State Machine

中文

电力科学与工程

1672-0792

2015

6

18-22

10.3969/j.issn.1672-0792.2015.06.004

本校为第一机构

光伏发电系统的仿真依赖于合适的光伏矩阵模型、逆变器模型和工作条件。针对现有光伏发电逆变器模型在通用性和自动控制能力方面的不足,建立了一种基于有限状态机（FSM）的逆变器模型。分析了并网逆变器的运行过程及规律,归纳出其可能发生的状态、事件及转换关系,构建出一个FSM,它是逆变器模型的核心。为了实现光伏发电系统的仿真,引入了一个电池模型,使其与逆变器模型进行交互。仿真结果表明,该建模方法有效地提高了系统的自动控制能力。通过修改逆变器模型的参数值,可以使其适用于特定的产品,具有通用性。

The simulation of photovoltaic（ PV） power generation systems relies on appropriate models of the PV array,inverter models and operating conditions. An inverter model based on a finite state machine（ FSM） is built to tackle the insufficiency of the current inverter model in photovoltatic power generation system in terms of its universality and automatic control capacity. This essay analyzes the operational process and regularities of the grid-connected inverter model,induces its potential state,occurrences and transformation relations,and co...