摘要
为提高电力系统仿真的灵活性和开放性,提出一种基于改进插入式建模技术的励磁系统用户自定义建模方法。将暂态稳定性仿真中采用的励磁系统的传递函数拆分为两类自定义的基本传输模块:非状态变量模块和状态变量模块,以描述元件的数学模型。应用该方法编写了用户自定义建模程序,实现拓扑分析和自动初值平衡等功能。通过实例分析详细阐述了自定义模型文件的格式含义,分析了用户自定义程序和主程序之间的关系。应用此方法搭建的用户自定义模型初值平衡操作简单,通过修改若干自定义模型参数便可迅速拓展出新模型。最后通过算例验证了基于该方法建立的用户自定义建模程序的准确性和可拓展性。
A method of user defined modeling（UDM） for excitation system known as improved plug-in modeling technique（IPMT） is proposed.IPMT divides the whole transfer function of the excitation system into two user-defined basic transfer blocks,namely state variables and non-state variables,in order to form the mathematical model.The UDM program based on IPMT is compiled,which incorporates the ability to analyze model configuration and balance initial value.An introduction is given to explain the fundamentals of writing model files,and the connection between UDM program and main simulation program is illustrated.Compared with the conventional modeling approaches,the method is convenient in balancing initial value,and creating new models by reusing the existed ones.Finally,several examples are used to verify the accuracy and expansibility of the UDM program based on IPMT.
出处
《电力系统及其自动化学报》
CSCD
北大核心
2011年第1期69-73,85,共6页
Proceedings of the CSU-EPSA
关键词
电力系统仿真
暂态稳定仿真
励磁系统
用户自定义建模
改进插入式建模技术
power system simulation
transient stability simulation
excitation system
user defined modeling
improved plug-in modeling technique
