光伏并网监控系统的设计与应用-控制科学与工程专业论文.docxVIP

河北工业大学硕士学位论文 河北工业大学硕士学位论文 光伏并网监控系统的设计与应用 光伏并网监控系统的设计与应用 光伏并网监控系统的设计与应用 摘 要 太阳能作为绿色能源，具有无污染、无噪音、取之不尽、用之不竭等优点，备受人们 的关注。国家能源局发布的《可再生能源发展“十二五”规划》显示：将推进太阳能多元化 利用，到 2015 年太阳能发电装机达到 2100 万千瓦，其中并网和离网的分布式光伏发电系 统安装容量达到 1000 万千瓦。目前，在我国已建成或在建的光伏电站中，大型并网光伏 电站占据了很大比例，而且光伏电站的运行多是在无人值守的情况下进行，光伏并网发电 的控制也比较复杂，单就逆变器控制板而言要时刻面临过压、过流、过载、超温等情况， 因此有必要开发出一套光伏并网监控系统，实现光伏并网系统的监控，这具有很强的工程 实用价值。 本文以天津诺尔哈顿电气有限公司在新疆的 100MWp 光伏并网项目为背景，分析研究 了光伏并网发电系统的工作原理，提出了 100MWp 光伏并网监控系统的设计方案和应用过 程。该监控系统分为三个部分：现场监控、本地监控和远程监控，主要完成数据采集、数 据存储，方便的控制光伏并网电站的运行，明确的显示出设备的故障信息，实时保存光伏 电站运行的状态信息，并可以远程监控，以便操作人员和电站管理人员能时刻了解光伏并 网电站的运行状态，同时融入了企业管理的理念，为电站的高层管理人员提供所需的管理 信息。 关键词：光伏并网，监控系统，现场监控，本地监控，远程监控 i PAGE PAGE ii iii iii The Design and Application of Photovoltaic On-Grid-monitoring System ABSTRACT Solar energy, as an inexhaustible supply, is clean and sustainable. It has become the focus of attention. Recently, the National Energy Board released The Renewable Energy Development 12th Five-Year Plan , will promote solar diversified utilization. Solar power installed capacity reached 21 million kilowatts in 2015, including 10 million kilowatts of grid and distributed off-grid photovoltaic power generation system installed capacity. Currently, photovoltaic power plants that have been built or are under construction in the large-scale grid-connected photovoltaic power plants, accounted for a large proportion in China. Operation of photovoltaic power plants is mostly in the case of unattended control, and photovoltaic power generation is also more complex. In terms of the inverter control board there are overvoltage, overcurrent, overload, over-temperature and so on at any time. Therefore, it is necessary to develop a set of the photovoltaic grid monitoring system. The system is very practical for its multiple functions and performance of real-time. This thesis takes Tianjin Noel Electrical Company in Xinjiang 100MWp photovoltaic grid-connected project as the background, analyzes the principle of the photovoltaic grid-connect