你好,欢迎来到济南济柴环能燃气发电设备有限公司官方网站!

无刷电机工作时有哪些作用?

来源:http://www.huannengpower.com   发布于:2018-08-21

无刷电机由控制器提供不同电流方向的直流电,来达到电机线圈电流方向的交替变换,

The brushless motor provides DC power in different current directions by the controller to achieve alternate transformation of the current direction of the motor coil.

无刷电机的转子和定子之间没有电刷和换向器。

Brushless motors have no brushes and commutators between rotor and stator.

无刷电机以电子换向取代机械换向,技术上要优于有刷电机。有刷电机的碳刷易于磨损导致电机的寿命降低。可是无刷电机的效率在一定电流范围内比有刷电机差。但无刷电机行驶起来几乎没有噪声,且寿命长达10年以上。

Brushless motor is replaced by electronic commutation instead of mechanical commutation, which is superior to brush motor. The brush of brushes motor is easy to wear, resulting in the reduction of the life of the motor. However, the efficiency of brushless motor is worse than that of brush motor in a certain current range. But brushless motors run almost without noise, and their life span is longer than 10 years.

综合两者利弊分析,无刷电机还是要优于有刷电机。

Combining the advantages and disadvantages of the two, the brushless motor is superior to the brush motor.

有刷电机和无刷电机的区别是是否配置有常用的电刷-换向器。有刷直流电机的换向一直是通过石墨电刷与安装在转子上的环形换向器相接触来实现的。

The difference between brushless motor and brushless motor is whether there are commonly used brush commutators. The commutation of brushless DC motor is always realized by contacting graphite brush with annular commutator mounted on rotor.

而无刷电机则通过霍尔传感器把转子位置反馈回控制电路,使其能够获知电机相位换向的准确时间。大多数无刷电机生产商生产的电机都具有三个霍尔效应定位传感器。由于无刷电机没有电刷,故也没有相关接口,因此更干净,噪声更小,事实上无需维护,寿命更长。

QQ截图20171025151947.jpg

The brushless motor feedback the rotor position back to the control circuit through the Hall sensor, so that it can get the accurate time of the motor phase commutation. Most of the motors produced by brushless motor manufacturers have three Holzer effect positioning sensors. Since brushless motors have no brushes, they have no interfaces, so they are cleaner, less noisy, virtually maintenance-free, and have a longer life.

近三十年来针对异步电动机变频调速的研究,归根到底是在寻找控制异步电动机转矩的方法,稀土永磁无刷直流电动机必将以其宽调速、小体积、高效率和稳态转速误差小等特点在调速领域显现优势。

In the last 30 years, the research on variable frequency speed regulation of asynchronous motor is to find a way to control the torque of asynchronous motor. Rare earth permanent magnet brushless DC motor will show its advantages in the field of speed regulation because of its wide speed regulation, small volume, high efficiency and small steady-state speed error.

无刷直流电机因为具有直流有刷电机的特性,同时也是频率变化的装置,所以又名直流变频,国际通用名词为BLDC.无刷直流电机的运转效率,低速转矩,转速精度等都比任何控制技术的变频器还要好,所以值得业界关注.本产品已经生产超过55kW,可设计到400kW,可以解决产业界节电与高性能驱动的需求。

BLDC brushless DC motor is also known as DC frequency conversion because it has the characteristics of brushless DC motor and frequency variation device. The international common term is BLDC. The operating efficiency, low-speed torque, speed accuracy and so on of BLDC motor are better than any control technology inverter, so it deserves the attention of the industry. This product has been produced. More than 55kW, it can be designed to 400kW, which can solve the demand of power saving and high performance driving in the industry.

1、全面替代直流电机调速、全面替代变频器+变频电机调速、全面替代异步电机+减速机调速;

1. Replacing DC motor speed regulation, frequency converter + frequency converter motor speed regulation, asynchronous motor + reducer speed regulation.

2、可以低速大功率运行,可以省去减速机直接驱动大的负载;

2. It can operate at low speed and high power, and can reduce the direct drive of large load by reducer.

3、具有传统直流电机的所有优点,同时又取消了碳刷、滑环结构;

3. It has all the advantages of traditional DC motor, and at the same time cancels the structure of carbon brush and slip ring.

4、转矩特性优异,中、低速转矩性能好,启动转矩大,启动电流小;

4, excellent torque characteristics, good torque performance at medium and low speed, large starting torque and small starting current.

5、无级调速,调速范围广,过载能力强;

5, stepless speed regulation, wide speed range, strong overload capacity;

6、体积小、重量轻、出力大;

6. Small size, light weight and great output.

7、软启软停、制动特性好,可省去原有的机械制动或电磁制动装置;

7, soft start, soft stop, good braking characteristics, can save the original mechanical brake or electromagnetic brake device.

8、效率高,电机本身没有励磁损耗和碳刷损耗,消除了多级减速耗,综合节电率可达20%~60%,仅节电一项一年可收回购置成本;

8. High efficiency, no excitation loss and carbon brush loss of the motor itself, eliminating the multi-stage deceleration loss, the comprehensive power saving rate can reach 20%~60%, only one year can recover the purchase cost of power saving;

9、可靠性高,稳定性好,适应性强,维修与保养简单;

9, high reliability, good stability, strong adaptability, simple maintenance and maintenance.

10、耐颠簸震动,噪音低,震动小,运转平滑,寿命长;

10. It is resistant to bumpy vibration, low noise, small vibration, smooth operation and long service life.

11、没有无线电干扰,不产生火花,特别适合爆炸性场所,有防爆型;12、根据需要可选梯形波磁场电机和正旋波磁场电机。

11. No radio interference, no sparks, especially suitable for explosive places, explosion-proof type; 12. Choose trapezoidal wave magnetic field motor and positive rotating wave magnetic field motor as needed.

有刷电动机 就相反了..

Brush motor is the opposite.

有了上面燃气发电机组的小总结,希望对广大客户有所帮助,如果有什么不理解的或者寻求帮助的请点击我们的官方网站:http://www.huannengpower.com 或者来电咨询,我们会尽全力为您解决

With the summary above, I hope it will be helpful to our customers. If you don't understand or ask for help, please click on our official website: http://www.huannengpower.com or call, we will try our best to solve it for you.


上一篇:燃气发电机组启动困难与什么有关?
下一篇:燃气发电机噪音太大的原因?