光伏并网发电系统软件锁相技术的研究

doi:10.3969/j.issn.1006-2475.2012.09.014

计算机与现代化 ›› 2012, Vol. 1 ›› Issue (9): 54-56,6.doi: 10.3969/j.issn.1006-2475.2012.09.014

光伏并网发电系统软件锁相技术的研究

李文杰，孙志毅，何秋生

太原科技大学电子信息工程学院，山西太原030024

收稿日期:2012-04-23 修回日期:1900-01-01 出版日期:2012-09-21 发布日期:2012-09-21

Study on SPLL of Grid-connected PV Generation System

LI Wen-jie, SUN Zhi-yi, HE Qiu-sheng

College of Electronic and Information Engineering, Taiyuan University of Science and Technology, Taiyuan 030024, China

Received:2012-04-23 Revised:1900-01-01 Online:2012-09-21 Published:2012-09-21

摘要/Abstract

摘要： 光伏并网发电系统是利用太阳能的主要技术之一，并网逆变器是实现其与电网连接的核心部分。为使光伏并网逆变器逆变输出电流能够更好地跟踪电网电压基波，完成同步锁相功能，本文以1kW单相光伏并网逆变器为研究平台，阐述光伏并网逆变器的工作原理和系统结构，分析并网逆变器的并网控制技术，提出一种基于坐标变换的双park鉴相器的软件锁相技术，最后通过Matlab仿真验证该方法的可行性。
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关键词: 单相光伏并网逆变器, 并网控制, 软件锁相环, Matlab仿真

Abstract: Grid-connected PV system is one of the technologies to use the solar energy. Grid-connected inverter is a core part of linking the grid. In order to make the output current of grid-connected inverter track the grid voltage fundamental and complete the Genlock, this paper uses 1kW single-phase photovoltaic grid-connected inverter as research platform. The paper describes the working principle of the photovoltaic grid-connected inverter and the system architecture. It analyzes the control technology of grid-connected inverter and proposes a software phase-locked loop of a dual-park phase detector based on coordinate transformation. At last it verifies the feasibility of this method by Matlab simulation.
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Key words: single-phase photovoltaic grid-connected inverter, network control, software phase-locked loop, Matlab simulation

李文杰;孙志毅;何秋生. 光伏并网发电系统软件锁相技术的研究[J]. 计算机与现代化, 2012, 1(9): 54-56,6.

LI Wen-jie;SUN Zhi-yi;HE Qiu-sheng. Study on SPLL of Grid-connected PV Generation System[J]. Computer and Modernization, 2012, 1(9): 54-56,6.

光伏并网发电系统软件锁相技术的研究

Study on SPLL of Grid-connected PV Generation System

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