主轴是由变频控制交流电机驱动。
The main spindle is driven by a variable frequency controlled AC motor.
变频空调控制器直接安装在交流电机。
The variable frequency AC controller mounts directly on the AC motor.
交流电机是一种机电能量转换的重要装置。
The AC motor is an important mechanism of energy converting between mechanical and electrical.
分析了三相交流电机全数字脉宽调制的原理。
The principle of pure digital PWM of the three-phase AC motor is analyzed.
显然，交流电机在许多应用场合比直流电机优越。
It is obvious th at A. C. motors are superior to D. C. motors in many appli cations.
为大功率三相交流电机的无触点控制提供一种方法。
It provides a method for the untouched switch Control for three - phase alternating current motor.
其矢量控制系统也是最复杂的交流电机调速控制系统之一。
Its vector control system is one of the most complicated ac adjustable speed control systems.
矿山风机中使用的交流电机驱动，其消耗与浪费非常严重。
AC motor drive which is used in the mine fan is serious in consumption and waste.
简略介绍了一种具有优越性价比的交流电机测试平台的硬件系统。
This paper briefly introduces a hardware system of the alternating current motor test of the platform with superior natural price ratio.
采用单片机控制交流电机PWM变频调速，可实现全数字化控制。
Using alternating dynamotor PWM frequency conversion governing controlled by single chip computer can realize digitized control.
应用机电分析动力学的理论建立了交流电机组的机电耦联振动方程组。
Based on mechanical and electrical analytical dynamics, we established equations about vibration coupled with mechanics and electrics in AC motor set.
运用微分动力学系统理论深入分析了交流电机的机电耦联失稳振荡问题。
Using the theory of differential dynamic system, destabilizing oscillation of the AC motor's were analyzed with electricity and mechanics coupling.
高压交流电机定子绕组端部固定存在薄弱环节，会引起绕组端部电击穿。
The stator end-winding support of HV AC motor exists weakness leading to electric break-down.
提出一种基于斐波那契数列的寻优方法来提高交流电机驱动系统的效率。
This paper presents a new approach, Fibonacci sequence based on-line efficiency optimization control, for improving the efficiency of induction motor drive systems.
无刷双馈电机的结构型式及其设计方法与常规交流电机具有较大的不同。
The structure and design method of Doubly-Fed Brushless Machine (DFBM) is quite different from the conventional AC machine.
介绍在交流电机调速中应用智能控制的第二部分——人工神经网络控制技术。
It is introduced the second part in the intelligent control for speed control of AC motor, the artificial neural network control technology.
介绍一种基于模糊控制理论的定子电阻辨识器的直接转矩控制交流电机调速系统。
This paper presents a kind of direct torque control with a stator resistance estimator for an AC motor speed-governing system based on fuzzy logic control.
现代行车起重控制系统大多采用交流电机拖动，因此交流调速技术也被广泛应用。
AC motors are usually used in modern traveling crane control system, so the technology of AC speed regulation is also adopted widely.
作为参考的交流电机电动势与另一台交流电机或无限大母线电动势之间的相角差。
Phase difference between the e. m. f. of an alternator taken as a reference and that of another alternator or that of an infinite bus.
介绍变结构系统的基本概念、数学表达设计问题及其在交流电机调速系统中的应用。
It is introduced the basic concept, mathematical expression and design problems of the variable structure system and the application of AC motor speed adjustment system.
实践证明，两种解决方案均能很好地实现交流电机的变频控制，具有良好的应用价值。
It has proven by practice that the two solutions both can implement Variable Frequency Control of ac Motor well, and have good applied cost.
介绍了一种用于制盐业三相交流电机的电流、电压和温度的智能保护系统的设计与实现。
This paper introduces the design and practice of intelligence protection system for the current, voltage and temperature of three-phrase ac motors.
为保证闭环控制系统的鲁棒性，设计了基于交流电机的矢量变换模型的多变量解耦控制器。
To ensure the system robustness, a multi-variable decoupling controller was designed based on the vector transform model of AC motor.
基于DSP的电动汽车用交流电机的直接转矩控制是电机高性能交流变频调速的新技术之一。
Direct Torque Control (DTC) of induction motor based on DSP is new technology of high performance AC — frequency conversion — rate of regulation.
系统中使用无协议通讯解决交流电机的起制动和速度切换，实现数字化调速，简化控制系统。
Starting-braking and speed transformation of AD motor is solved by using non-agreement communication in the system, the numerical adjusting speed is realized, and the control system simplified.
导出了计算其空换位长度及相应环流损耗比值的解析式，供设计大型交流电机定子线棒时参考。
Thus the analytical expressions for calculating the length of voids and its circulating current loss ratio have been deduced.
真机实测股线电流表明，交流电机定子圈式线圈并联股线间存在相当可观的基波和谐波环流损耗。
Measurments of the strand current show that the basic and harmonic circulating current losses in the stator barrel type coil of ac machines are quite significant.
真机实测股线电流表明，交流电机定子圈式线圈并联股线间存在相当可观的基波和谐波环流损耗。
Measurments of the strand current show that the basic and harmonic circulating current losses in the stator barrel type coil of ac machines are quite significant.
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