摘要
近年来,发电机静态启动技术在大型燃气轮机及大型抽水蓄能电站中得到了广泛的应用,特别是对大型燃气轮机而言,发电机静态启动技术相较于其他的启动技术如交流电动机启动、柴油机启动及单轴联合循环机组汽轮机启动等方式,其所具有的使用灵活、操作简单、投资及运行成本低、可以有效节约空间等特点使其在使用中具有较大的竞争优势。近来对它的研究也一度成为热点。但同时我们也发现,由于该技术在运用中必须与透平控制系统、发电机励磁系统实现交互控制,因此目前存在着一定的技术壁垒。而这势必导致对国外进口产品的依赖性增加、相关设备的更新改造困难、运行成本高等问题。为此,本论文将对发电机静态启动技术作全面的分析与研究,为相关设备的国产化提供必要的参考。
本论文将首先要结合实际生产经验,分析发电机静态启动技术的原理、特点、技术;其次是结合实际生产经验,对GE发电机静态调频启动的控制策略、逻辑、保护进行阐述与分析;再在以上基础上,对发电机静态变频启动装置及励磁系统国产化的可行性进行分析并提出建议;最后对发电机静态启动装置在抽水蓄能电站、风力发电、同步变频电机等场合中的应用进行了介绍。
希望本论文完成后能成为一份同行了解、学习发电机静态启动技术的有用资料,同时能为相关设备的升级改造提供参考。发电设备的国产化是一个任重而道远的过程,需要我们不懈的努力。
In the recent years, the generator static starting technology is widely used in huge gas turbine generator unit and pumped-storage generator. Specially for huge gas turbine generator, compared with other starting technologies as AC motor starting,diesel engine starting and steamer starting in single shaft combined cycle power generation unit, the characteristics such as flexibility in use、easy operation、less investment and lower operation cost of the static starting technology make it has competitive advantage. and make it become the hot field in research. But we also find that the static starting equipment should used with other system such as tuibine control and excitation control. so the technology barrier exist, which make us to use the equipment depending on import. And also make the operation cost higher and difficult to rebuilt. So this article will analyze and research the static starting technology, which give reference for nationalization reformation of the equipment.
In this article, we will fist analyze the theory, characteristic, technology of the equipment based on practice experience. second we will analyze the control policy, logic and protection based on GE LS2100 static startor. third we will give the way to nationalize the static startor and exitation. and finally we introduce the application of this technology in other field like pumped-storage plants, wind power and variable frequency synchronous motor.
We do hope this article will be a useful datum for other people to realize and learn the static starting technology, and give any reference for equipment upgrading. Nationalization reformation of generator equipment is a long way to go, it need us to work hard continually.
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