目录 摘要 ..................................................................................................................................................I Abstract .......................................................................................................................................... II 1 绪论..............................................................................................................................................11.1 课题背景...................................................................................................................1 1.2 课题内容...................................................................................................................1 1.3 课题意义...................................................................................................................1 2 简单电力系统的静态稳定性及其仿真分析 ............................................................................. 2 2.1 电力系统静态稳定性简介............................................................................................... 2 2.2 简单电力系统的静态稳定性仿真...................................................................................4 2.2.1Simulink 模型构建及参数设置 .............................................................................4 2.2.2 保持电势 Eq ’= Eq0 ’=常数，励磁系统的综合放大系数为 5.7857 仿真分析 .... 7 2.3 提高系统静态稳定性的措施...........................................................................................9 2.3.1 采用自动调节励磁装置........................................................................................9 2.3.2 减小元件的电抗..................................................................................................10 2.3.3 提高线路标称电压等级......................................................................................10 2.3.4 改善系统的结构和采用中间补偿设备.............................................................. 11 3 简单电力系统的暂态稳定性及其仿真分析............................................................................ 11 3.1 电力系统的暂态稳定性简介.........................................................................................12 3.2 Simulink 模型及仿真结果 ............................................................................................. 14 3.3 提高系统暂态稳定性的措施 ........................................................................................ 18 3.3.1 改变制动功率（发电机输出的电磁功率）......................................................18 3.3.2 改变原动功率（原动机输出的机械功率）......................................................19 3.3.3 系统失去稳定后的措施......................................................................................20 4 总结与展望................................................................................................................................ 21 参考文献 ....................................................................................................................................... 22 致谢 ............................................................................................................................................... 231Contents Abstract .......................................................................................................................................... II 1 Introduction .................................................................................................................................. 11.1 Task background................................................................................................................ 1 1.2 Task contents ..................................................................................................................... 1 1.3 Task significance ............................................................................................................... 1 2 The static stability of power system and its simulink .................................................................. 2 2.1 Introduction of power system static stability .................................................................... 2 2.2 Simulink of power system static stability ......................................................................... 42.2.1 Simulink model construction and parameter setting .............................................. 4 2.2.2 Keeping voitage Eq ’= Eq0 ’=constant，simulink of the excitation system when the amplification coefficient is5.7857 ............................................................................. 7 2.3 Measures to improve static stability.................................................................................. 9 2.3.1 Using automatic excitation devices ........................................................................ 9 2.3.2 Decrease the reactance of components................................................................. 10 2.3.3 Increase the voltage grade of power line.............................................................. 10 2.3.4 Improve the structure of the system and using the compensatingdevices............ 11 3 The transient stability of power system and its simulink ........................................................... 11 3.1 Introduction of power system transient stability ............................................................. 12 3.2 Simulink model and the results ....................................................................................... 14 3.3 Measures to improve transient stability .......................................................................... 18 3.3.1 Change the braking power（electromagnetism power of the generator）.......... 18 3.3.2 Change the motive power（mechanical power of prime mover）...................... 19 3.3.3 Measures after stability lost.................................................................................. 20 4 Conclusions and expectations .................................................................................................... 21 References ..................................................................................................................................... 22 Acknowledgement ....................................................................................................................... 231电力系统稳定性分析及仿真摘要: 电力系统是由以下环节组成的，即产生电能、输送电能、变换电能、配送电能和使用电能。