异步测功机直接转矩控制动态负载研究  

Research on Direct Torque Controlled Asynchronous Dynamometer for Dynamic Loads

作　　者：刘述喜[1] 王明渝[2] 范杰[2] 王圣超[1] 

机构地区：[1]重庆工学院电气工程与自动化系,重庆400050 [2]重庆大学高电压与电工新技术教育部重点实验室,重庆400044

出　　处：《微电机》2007年第12期78-81,共4页Micromotors

摘　　要：鼠笼式异步电机转子轻、高速性能好、结构简单、可四象限运行,是全功能型测功电机的首选品种。提出一种基于鼠笼式异步电机直接转矩控制测功机设计方案,强调电机负载转矩的直接控制与效果,并据此建立了系统模型进行了大量仿真。结果表明系统可以实现对负载转矩的精确控制,模拟不同工况下的负载特性,具有较好的动、静态性能。Squirrel cage induction motor is firstly chosen due to its light rotor, simple and rugged structure and four-quadrant operation. A scheme of dynamometer was presented which used an induction machine as the load motor controlled by direct torque control, the direct control and effect of the load torque were emphasized, Then a model of the dynamometer system was established according to the presented scheme, land a great deal simulation was performed. The results verify the feasibility of the method, which have better static and dynamic performances. The torque can be accurately controlled as to emulate the desired load under different operating conditions.

关 键 词：异步电动机 测功机 直接转矩控制 动态负载 

分 类 号：TM343[电气工程—电机]