600MW汽轮机组励磁系统调试及启动研究

发布时间：2018-11-20 16:29

【摘要】：汽轮发电机组是火力发电厂的心脏,是实现能源转换的关键设备。如果汽轮发电机组不能可靠工作,将容易造成发电机组与电力系统解列,严重影响了电网和汽轮发电机组的安全稳定运行。合理设定发电机励磁系统控制参数,对电力系统的电压控制和稳定控制具有重要作用。稳定的发电机励磁系统可以提高电力系统安全性和稳定性。本文以某电厂600MW汽轮发电机组调试为例,研究了大型汽轮发电机组厂用电受电的调试的内容和要点;深入研究了励磁系统的结构特性、建模原理和调试步骤,分别给出了励磁系统在空载和并网条件下的实验结果,得到最符合实际运行条件的参数设置;研究了机组电气整套启动调试步骤,给出了发电机组短路、空载和并网等主要调试步骤条件下的实验数据。最后,总结分析了发电机组励磁调试及启动过程中故障原因,提出了相应的处理或改进措施。
[Abstract]:Turbine generator is the heart of thermal power plant and the key equipment to realize energy conversion. If the turbine-generator set can not work reliably, it will easily cause the generator set and the power system to be decomposed, which will seriously affect the safe and stable operation of the power grid and turbine-generator set. Reasonable setting of control parameters of generator excitation system plays an important role in voltage control and stability control of power system. Stable generator excitation system can improve the security and stability of power system. Taking the commissioning of 600MW turbine-generator set in a power plant as an example, this paper studies the content and key points of the commissioning of large turbine-generator set. The structure characteristics, modeling principle and debugging steps of excitation system are studied in depth. The experimental results of excitation system under no-load and grid-connected conditions are given respectively, and the parameters that are most suitable to the actual operating conditions are obtained. This paper studies the whole set of debugging steps for the electric start of the unit, and gives the experimental data under the conditions of the main debugging steps of the generator set such as short circuit, no-load and grid-connected. Finally, the causes of fault during excitation debugging and starting of generator are summarized and analyzed, and the corresponding treatment or improvement measures are put forward.
【学位授予单位】：南京邮电大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TM621

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