摘要
仿真技术是一门通用的支撑性技术,其核心内容是模型建立、验证和运行技术,当前已广泛应用于电力系统。电力系统发生故障或操作后,将产生复杂的电磁暂态过程和机电暂态过程,该文阐述了含风力发电的电力系统的电磁暂态的数学模型及计算机辅助分析的方法,并且应用动态仿真工具箱S imu link建模,进行实时系统的仿真。仿真结果表明风力发电机提供的短路电流在短路电流中占一定的比例,在风电装机容量不断扩大的情况下,将风力发电机作为简单负荷处理,或视为同步机处理均不合适,因此也就直接影响继电保护的整定计算。该文给出的思路和方法,为继续深入研究提供了理论基础和指导。
Simulation technology is a general supporting technology. Its hardcore is building,validating and running models. It has been widely used in electrical system. When faults take place in electrical system or the system is after operation, there will be a complex electromagnetic temporality process and a mechatronic temporality process. The paper describes the mathematical model and computer - aided analysis＇ methods of the electromagnetic temporality of the wind - electricity system of the power system, and uses the dynamic simulation toolbox to carry through real - system＇s simulation. The simulation result shows that the short - circuit current supplied by the wind turbine occupies some proportion in the short - circuit current. It is unseemly that the wind - generator is treated as a simple equipment or as a simultaneous generator under the increasing wind - generator capacity, as a sequence, the relay will be influenced too. The methods and thoughts given in the paper may be a basis for further exploration.
出处
《计算机仿真》
CSCD
2006年第4期220-224,共5页
Computer Simulation
基金
新疆自治区高校科研计划项目(XJEDU2004116)
关键词
风电系统
故障分析
仿真
电磁暂态
Wind - electricity system
Fault analysis
Simulation
Electromagnetic temporality
