三相异步电机的新型能耗制动研究  

Researches on New Energy Losses Braking of Three-phase Asynchronous Motor

作　　者：王秋晓[1] 陈安科[1] 

机构地区：[1]重庆大学机械工程学院,重庆400044

出　　处：《世界科技研究与发展》2013年第2期169-172,204,共5页World Sci-Tech R&D

摘　　要：分析了异步电机能耗制动的理论基础。根据异步电机制动原理,对异步电机的能耗制动进行了改进,设计出了新的能耗制动方案;并利用matlab/simulink仿真工具,建立了三相异步电动机能耗制动过程的仿真模型;根据定子转子瞬间冲击电流的幅值和瞬间冲击转矩的幅值,以及制动时间的要求,通过电机在不同负载转矩、不同负载转动惯量,以及接不同限流电阻等情况下的实例仿真和对比研究,验证了新型能耗制动的可行性。新型能耗制动系统减小了异步电机能耗制动系统的生产和维护成本,提高了系统稳定性。The theoretical basis of the energy losses braking of asynchronous motor is analyzed. According to the principle of asynchronous motor braking, the energy losses braking of asynchronous motor is improved, with a new energy losses braking plan designed. Using matlab/simu-link tool, a simulation model of the three-phase asynchronous motor energy losses braking process is established. According to the instant im- pact current amplitude of both stator and rotor, the instant impact torque amplitude and the braking time requirements, the feasibility of a new kind of energy losses braking is verified through the example simulation and contrast studies of the motor when it works in the situations of dif- ferent load torque, different load inertia and different current-limiting resistance. In the new energy losses braking system, the production and maintenance costs are reduced, with the stability improved.

关 键 词：能耗制动 异步电机 MATLAB 

分 类 号：TM343.2[电气工程—电机]