动态无功补偿器控制系统软件的设计毕业的设计.docx

大学毕业设计（论文）动态无功补偿器的控制系统软件设计学院（系）： 自动化 专业班级：学生姓名：指导教师： 教授摘 要随着社会的飞速发展，工业现场中大量冲击负荷以及感性性负荷接入电网，工业环境越加复杂。这些冲击负载和感性负载大量地消耗电网无功功率，从而拉低功率因数，造成电网电压的波动，电网的安全且正常运行受到了巨大的挑战。于此同时负载不断地变化使固定无功补偿的传统方法完全没有办法满足现代工业环境的需要。所以，设计具有动态调节功能的无功补偿装置对于现代工业生产具有重要的实践意义；而设计动态无功补偿器控制系统的软件，就可以更加方便的完成对于现代工业的进一步发展。本文大致可看成以下几个部分：（1）完成了动态无功补偿装置的总体方案设计。在分析对比传统静止无功补偿装置的优缺点后，构建了一种动态无功补偿装置拓扑结构。并根据动态无功补偿装置的拓扑结构，设计了其控制系统方案以及主电路、操作回路电路等。（2）动态无功补偿器的拓扑结构。（3）完成了动态无功补偿装置的控制系统软件设计。本章进行动态无功补偿装置的控制系统软件设计，其中主要包括PLC程序设计和显示设备监控程序设计这两部分。通过PLC程序进行调节，然后通过显示设备将参数和各类数据直观地体现出来。本课题重点在于设计一种动态无功补偿装置的软件，该软件能实时分析计算电网无功需求，并根据实际情况得出数据使得无功补偿装置发出无功功率的大小，使得该装置具有就地动态无功补偿的功能，稳定电压，提高电网的功率因数，使得电网稳定安全的运行。关键词：阻抗变化；无功补偿；动态；软件AbstractWith the rapid development of society, a large number of industrial impact load and sensory load access to the power grid, the industrial environment more complex. These shock loads and inductive loads consume a large amount of reactive power in the grid, thus driving down the power factor, resulting in grid voltage fluctuations, the safety and normal operation of the grid has been a huge challenge. At the same time, the constant load changes make the traditional method of fixed reactive power compensation no way to meet the needs of modern industrial environment. Therefore, the design of dynamic adjustment function of the reactive power compensation device for the modern industrial production has important practical significance; and the design of dynamic reactive power compensation control system software, you can more easily complete the further development of modern industry.This thesis can be regarded as the following parts:Completed the dynamic reactive power compensation device overall program design. After analyzing the advantages and disadvantages of the traditional static reactive power compensation device, a dynamic reactive power compensation device topology is constructed. According to the topology of dynamic reactive power compensation device, the control system and the main circuit and opera