Blade wake excitation caused by twin-shaft engine speed difference;
双转子发动机转差引起的叶片尾流激振
Slip of linear and thruster load induction motor with frequency speed control;
直线型和推进器型负载变频异步电动机的转差率
Based on the characteristic equation of asynchronous motor,the conception of slip control was discussed.
以异步电动机机械特性方程为基础,讨论了转差率控制的基本概念,分析了转差率控制的基本规律,设计了基于转差率闭环控制的异步电动机变频调速系统,并介绍了该系统的主要特点。
The principle of energy-saving by regulating the stator voltage of asynchronous motors and the relationships between the slip and the efficiency / power factor are analyzed,based on which the control principles of maximum efficiency,minimum current,minimum input power and maximum power factor are investigated in detail,revealing that the essential of these control .
分析了异步电动机的调压节能原理以及效率和功率因数与转差率的对应关系,在此基础上详细分析了最大效率、最小电流、最小输入有功和最大功率因数控制的原理,揭示了几种控制方案的实质是一定负载范围内的恒转差率控制。
The Design of Slip Frequency Controlled VVVF System Based on Microcontroller;
基于单片机的转差频率控制变频调速实验系统设计
Stator-flux-orientated slip frequency control for induction motor;
异步电机按定子磁场定向的转差频率控制
In doubly-fed speed regulation systems,the angle of slip is needed to be detected well and truly when field-oriented controlling is used.
在双馈调速系统中,采用矢量控制时需要准确地检测到电机的转差角,应用增量式旋转脉冲编码器设计了一种双馈电机转差角的软件检测方法,以所检测到的转差角进行矢量运算,可以获得对转矩和功率因数分别控制的优良调速性能。
