查询词典 synchronous motor

Powder metallurgy gears include: bevel gear, dual-gear, gear box gears, planetary gears, ring gear, rack, sector gears, bevel gears, spur gears, sun gear, helical gear, gear shaft, flat gears, spur gears, double layer gear, synchronous pulley, helical gear, sprocket, ratchet, multi-gears, micro-gear, small modulus gear, special gear, differential bevel gear, reducer gears, variable speed gear motor, all kinds of precision gears.

粉末冶金齿轮包括：伞齿轮、双联齿轮、齿轮箱齿轮、行星齿轮、齿圈、齿条、扇形齿轮、锥齿轮、直齿轮、太阳齿轮、斜齿轮、齿轴、平齿轮、正齿轮、双层齿轮、同步轮、皮带轮、螺旋齿轮、链轮、棘轮、多层齿轮、微型齿轮、小模数齿轮、异形齿轮、差速伞齿轮、减速机齿轮、变速电机齿轮、各类精密传动齿轮。

ABSTRACT Aiming at problems of trans-vector controller in a vehicle-carried induction motor such as variable rotor and stator resistance following motor temperature, and their inductance varying with flux saturation degrees. Firstly, CSI and VSI are introduced, for CSI, it can hold the advantages both FOC and DTC using stator flux directional, PI parameter and simulation are also introduced. Secondly, equations of IM in the synchronous rotary frame and its static counterpart, as figuring in the saturation condition of magnetic field, are dealt in this paper and the simulation results are presented. Thereafter, the parameter designing of PI trans-vector controller is processed, which features the non-linear model. In practical realization, as neglecting the dynamical change of motor inductance, this paper employs online modification of inductance parameters, according to the flux saturation, then transforms the non-linear equations into linear ones, and so compacts the structure of controller. Thirdly, in view of the maximum torque output is extraordinary requisite when Electrical Vehicle start up, accelerate, and overtake, this paper issues the maximum torque when both inverter and battery capacity is corporeally definite. Fourthly, on-line differentiating and analyzing both rotor's time constants and its flux by using the expanding order reduction and discrete Kalman filter equation are fathomed, in order to realize high-performance trans-vector algorithm, and also the simulation results are presented. Fifthly, the close-loop regenerative brake system, when the EV's torque is set constant, is deduced; at the same time, unification of electric drive model and brake model is executed. Combined with maximum charge current demands, the mathematical model for online yielding torque as a demand.

本论文针对车载异步电机在矢量控制器所遇到的问题：定转子电阻随温度变化及随电机饱和程度变化的转子电感及定子电感而影响电机调速性能提出一套完整的解决方案：分析了电流型逆变器和电压型逆变器在实现矢量控制时控制器参数的计算，分析出对于电流型逆变器在采用定子磁场定向时，其性能同时具有矢量控制和直接转矩控制两者的优势，并对电压型逆变器在转子磁场定向下的模型进行了仿真研究；建立异步电机非线性模型，推导出考虑磁饱和时异步电机在同步旋转坐标系及静止坐标系下的方程，并做出了仿真结果，建立异步电机在非线性模型下的矢量控制调节器的PI参数设计，在实际应用中，若忽略电机电感的动态变化，可以根据当前的磁路饱和状态而在线修正电感参数，从而将非线性方程线性化，降低控制器的复杂度；考虑到电动汽车在起动和加速超车时需要电机有最大转矩输出，本文讨论在逆变器容量一定和电池供电能力有限的情况下电机最大转矩输出问题；推导了异步电机扩展降阶、离散卡尔曼滤波方程在线辨识转子时间常数和转子磁通，用于实现高性能的矢量控制算法，并给出了仿真结果；推导出了电动汽车恒转矩给定的闭环回馈制动系统，实现了电动控制模型和制动模型的统一，而且结合铅酸电池最大充电电流的要求，为制动转矩在线给定建立了数学模型；设计了基于双DSP系统的高性能矢量控制器软硬件框图，并以大量实验数据说明矢量控制在电动汽车应用的实际应用状况。

High temperature blankets series; 5, rubber, polyurethane materials of high strength steel wire synchronous belt; 6, knitting, needle corrugated board conveyor belt; 7, V-belt, round belt, wide-band, multi-groove belt, transmission belt, steel buckle, etc.; 8, stainless steel plate chain; steel plate chain, modular Nets plate; 9, professional custom-made automated production lines; 10, import bearings, chain, motor, deceleration machine, inverter and so on; 11 , industrial fabrics, activated carbon fiber, needle filter materials, high temperature blankets, sealing materials.

耐高温的毛毡系列； 5、橡胶、聚氨酯高强钢丝材质的同步齿形带； 6、编织、针刺瓦楞纸板输送带； 7、三角带、圆带、广角带、多沟带、变速带、钢扣等； 8、不锈钢平板链；塑钢平板链、模块化网板；9、专业订做自动化生产流水线； 10、进口轴承、链条、电动机、减速机、变频器等； 11、工业用布、活性炭纤维、针刺过滤材料、耐高温毛毡、密封材料。

Thus the magnetic flux and torque are decoupled. In which way, It controls the asynchronous motor in a synchronous way.

本课题应用矢量控制的原理，以电机控制专用的DSP芯片TMS320F240为核心，开发出一套基于矢量控制的变频调速系统。

Motor model under synchronous coordination is established and indirect field oriented control is implemented in the paper.

建立包含电机动态边端效应的同步坐标模型，实现直线感应电机间接磁场定向控制。

To constitute the synchronous rectifier rotating motor starter/generator system, the excitation problem during start process should be solved.

要构成基于旋转整流器式同步电机的起动/发电系统，必须解决起动过程的励磁问题。

The system description is concentrated on units' function. The principle of induction generator describes how to generate electric power from induction motor and the difference between synchronous generator and induction generator. The design of induction generation system is focus on a 80kW biogas induction generation and controlled parallel panel. Finally, the peripheral unit design is interesting in biogas storage tank, hot air duct and safety device .

系统描述针对感应式沼气发电系统所需设备的功能说明；感应发电机原理机针对马应马达与发电机之运转模式说明，并比较同步式与感应式发电机之差异；感应发电系统设计则针对80kW感应式沼气发电系统所需发电机组、保护并联盘设计说明；周边设施包括沼气储袋、引擎热风导管及沼气安全装置。

One application of this converter is to supply a steady and regulable excitation circuit for synchronous generator by integrated its second winding with the motor while its primary winding is static.

课题根据同步电机的无刷励磁的需要，设计了两种旋转变换器：一个是反激式旋转变换器，另一个是全桥移相控制式旋转变换器。

Is through the use of a synchronous drive motor connecting both picture viewer and sound reproducer.

是用同步电机将图象观察器和声音重放器连接起来。

The interharmonic sources in power system are analyzed,such as converter equipment,fluctuating load,ferro-resonance,synchronous regulator cascade and induction motor. Its harms are expounded,including waveform distortion,light flicker and influences on measuring instrument,motor and power factor.

分析了电力系统中各种间谐波源，包括变频装置、波动负荷、铁磁谐振、同步串级调速装置及感应电动机，阐述了间谐波的各种危害，如波形畸变、灯光闪烁及对测量仪表、电动机、功率因数的影响。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失