OOS技术在同步发电机多回路分析仿真中的实现

IMPLEMENTATION OF OOS TECHNIQUE FOR MULTI-LOOP ANALYSIS ON SYNCHRONOUS GENERATORS

多回路分析 (MLA)方法应用于同步发电机定子绕组内部匝间短路、相间短路以及定子单相接地故障的分析 ,可以取得比较准确的仿真结果。文中提出了面向对象仿真 (OOS)技术在多回路分析中实现的方法 :首先建立矩阵类 ,提供简洁的矩阵描述 ;再建立多回路电机类 ,将发电机的大量原始参数封装起来 ,并由内部成员函数实现发电机电感等参数的计算 ,用户可根据研究问题的需要定义定子绕组划分单元 ;最后建立状态方程类 ,实现状态方程具体的解算算法。仿真问题归结为这3个类的对象的有机结合。实践表明 ,采用该方法可使仿真程序函数调用时的参数更加简洁 ,同时增强了仿真的灵活性、程序代码的可读性和可扩充性 。

It is successful to apply Multi-loop Analysis (MLA) to the simulations of synchronous generators on stator internal faults and single-phase grounding faults. This paper presents the design and implementation based on Object Oriented Simulation (OOS) for MLA. The method firstly provides a simple description of matrix by building the Matrix class, then makes a package of numerous original data of a generator-an object described by the ML -Gen class, in which the inductance and other parameters can be resolved by some member functions. Users can define the stator windings units with respect to simulation target. At last, it provides the StateEqu class, in which the ODE problems can be resolved with the member functions. In practice, the OOS method can improve the readability and the expandability of the program codes, as well as improves the practicability of the software.