调速

Magnetism Msier is operated easily,non scale changes speed,can mix liquid preciselystably in mide speed range,especially fit little samples experiments.

磁力搅拌器操作简便，无级调速，能在较广的速度范围内对液体溶液进行精密稳定的搅拌，特别适合小体积样品的试验。

Magnetism Msier is operated easily,non scale changes speed,can mix liquid preciselystably in mide speed range,especially fit little samples experiments.

恒温磁力搅拌器操作简便，无级调速，能在较广的速度范围内对液体溶液进行精密稳定的搅拌，特别适合小体积样品的试验。

Magnetism Msier is operated easily,non scale changes speed,can mix liquid preciselystably in mide speed range,especially fit little samples experiments.

HJ-2A数显恒温多头磁力搅拌器操作简便，无级调速，能在较广的速度范围内对液体溶液进行精密稳定的搅拌，特别适合小体积样品的试验。

The engine main circuit have to be gurranteed drawing the torque of electric motor and rotation speed wholly to do regulateing of independence ,But also possess extensive setting range SS7's mould electric locomotive adopts Quan Kongqiao and semi bridge accuseeing series connection to make up the monophase bridge style commutation electric circuit ,The coil power supply is encouraged against the stringtrain by the electric motor the drawing armature to 3 parallels operation ,Still there is an excitation commutation bridge ,He encourages the coil power supply with 3 electric motors drawing together to the series connection ,Moreover has one another accuses the regulating action .

机车主电路必须保证牵引电动机的转矩和转速都可作独立的调节，而且要有宽广的调节范围。SS7型电力机车采用一个全控桥和一个半控桥串联组成单相桥式整流电路，向3台并联工作的牵引电动机电枢与串励绕组供电，还有一个励磁整流桥，向串联在一起的3台牵引电动机他励绕组供电，并具有相控调节作用。可以实现机车无级调速和无级削磁。SS7型电力机车采用再生制动方式，再生制动时，牵引电动机作直流发电机工作，并且将电能馈送回接触网，此时电力机车相当于一个移动的发电站。

3 AC motor 15kw 1/set 1.4 Speed regulator 15kw 1/set 1.5 Detailed requirement:--thermal treatment and quench for gear surface Feeding base 6 Auto feeder --mode vacuum suction model 7 Dry with hopper type --mode auto control temp.hot wind for heating --mode AC motor 2、Composite die head with changeable core and mouth mould ф11~ф32mm one unit moule --mode spiral type,with changeable mouth moule and core moule --heating control zone stainless steel heating ring --power Each set for changeable calibrator、mouth moule and core rod

1.3交流电动机十五千瓦1/set 1.4调速器一十五千瓦1/set 1.5详细的要求：-热处理和淬火齿轮表面喂养基地 6 ）自动接驳-模式真空吸管模型 7 ）干燥，漏斗型-模式的自动化控制t emp.hot风加热-模式交流电动机 2 ，复合模头与复杂多变的核心和口模ф11 ф32毫米一个单位moule -模式，螺旋型，与复杂多变的口m oule和核心m oule -暖气管制区不锈钢暖气响动-电源每套为复杂多变的校准，口moule和核心杆

It make the control-driven system work well in a application of peristaltic pump control driven system.

在一种蠕动泵控制驱动系统的应用中，证明系统具有调速实时性好和运行平稳的特性。

Test result shows that ship speed regulator enhances the ability to restrain disturbance and system with parameter perturbance and improves the stability and speed performance in case of system uncertainty.

仿真结果表明，新的船舶柴油机调速器在系统模型不确定和参数摄动情况下，能在线学习被控系统的动态特性，具有抑制扰动和参数摄动的能力，系统调节过程的稳定性和快速性都有提高。

So it is necessary and significative to do some primary study about this field.In this paper, first, will simply introduce the development actuality of electrical propulsion, particularly analyze the configuration and technology advantage of podded electrical propulsion system .

本文首先回顾了船舶电力推进的发展历程，重点分析了吊舱式电力推进系统的技术优势和应用现状，对目前在吊舱式电力推进领域所广泛采用的变频调速技术和PLC控制技术一一作了介绍。

In infra side, the author chooses the SIMENS CPU 214 PLC to control the speed subsystem of the podded propulsion, and chooses emulator PLC to control other devices such as the generator, ship power station. The emulator PLC can simulate the real PLC, and provide the data for zutaiwang6.5 to finish the supervision and control.

在下位机设计方面，吊舱主推进调速系统控制器件选用西门子S7-200系列CPU214 PLC；而发电机组、船舶电站等其他部分的控制器件选择组态王6.5中亚控仿真PLC控制完成，仿真PLC可以模拟PLC为组态王提供数据，很好的实现其监控功能。

On the view of the result of experiment, the motor started stably and quickly with small toque pulsant and had wide scope of speed adjustment. It can content all of the request of the compressor of refrigeratory.

本控制系统是针对冰箱压缩机电机研制的，从试验的测试结果来看，电机起动稳定快速、转矩脉动小，具有较宽的闭环调速范围，完全满足冰箱压缩机电机各项性能指标要求。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。