三相同步发电机突然短路仿真与分析  

Simulation and Analysis of Sudden Short Circu

作　　者：刘畅 杨定富 Liu Chang;Yang Ding-fu

机构地区：[1]32184部队,江苏南京210000

出　　处：《电力系统装备》2020年第7期60-62,共3页Electric Power System Equipment

摘　　要：电力系统在人们的日常生产生活中非常普及,对其可靠性要求较高.同步发电机给电力系统提供了无功功率,研究其电磁暂态和机电暂态过程对电力系统的稳定性分析有着重要的作用.然而电力系统结构复杂庞大,很多试验不允许实际进行,所以通过软件仿真进行分析成为必然趋势.MATLAB是一个以矩阵运算为基础的强大的科学计算环境,可实现数据分析、算法开发、GUI程序开发等功能[1];Simulink是以MATLAB为基础开发的图形模块化仿真平台,Simulink中集成了多学科门类的库和模块,便于进行各种仿真,交互界面易于操作.其中包含了完备的电力系统仿真模型,是对同步发电机进行仿真模拟的最优选择.相较于采用编程进行仿真的方式,Simulink仿真具有直观、高效的优点.本文在对三相同步电机瞬态过程的理论分析基础上,以Simulink为工具仿真分析同步发电机端短路的各种情况,通过理论指导仿真,通过仿真验证理论.Power system is very popular in daily production and life,with high requirements for reliability.Synchronous generators provide power for power system operation.It is important to study its electromagnetic and electromechanical transient process for power system stability analysis.However,many complex and huge experiments of power system structure are not allowed to be carried out in practice,so it is an inevitable trend to analyze through software simulation.Matlab is a powerful scientifi c computing environment based on matrix operation,It can realize data analysis,algorithm development,GUI program development and other functions;Simulink It is a graphic modular simulation platform developed on the basis of MATLAB.Simulink integrates multi-disciplinary libraries and modules to facilitate various simulations,and the interface is easy to operate,including a complete power system simulation model,which is the best choice for synchronous generator simulation.Compared with the way of programming simulation,Simulink simulation has the advantages of intuitionistic and effi cient.Based on the theoretical analysis of the transient process of three-phase synchronous motor,this paper uses Simulink as a tool to simulate and analyze the various situations of the short circuit at the end of synchronous motor,and verifi es the theory through simulation under the guidance of theory.

关 键 词：同步电机 三相短路 SIMULINK仿真 

分 类 号：TM623[电气工程—电力系统及自动化]