Echo and A Boy in Our University
Echo was born in a rich family. She was the school flower of our university and every student discussed her every day. She turned a blind eye on any other outstanding boy’s pursuit and fell in love with a poor boy on the contrary. No one of us could understand why she should have had fallen in love him. She would ride her gas powered bicycle or take a taxi to school before she fell in love with him, but she went by the bus when she decided to ran after him, because she wanted to take the opportunity to meet him in a short distance. He rode his electric trike to avoid her, because he thought that he did not match her and he did not want to become other students’ jokes. But she still insisted to pursue him. He told her one day that he did not want her like that and that she could find a better man than him. She went on her homemade brushless motor electric car and ran after him with the quickest speed. She told me that she would never give up pursuing him before he promised her.
The application of brushless DC motor
With the development of power electronics technology, new permanent magnet materials and the fast computing power of the DSP (digital signal processor), the applications of brushless DC motor is growing popularity. Compared with DC motors, Brushless DC motors has similar high speed performance, it also overcome the commutation spark, low reliability and other defects that DC motors using mechanical reversing device caused. Brushless DC motor with the characteristics of small size, light weight, high efficiency, flexible shape and size, so it is widely used in servo system, CNC machine tools, electric vehicles, household appliances and other various fields, it has become the main direction of modern servo technology.
Servo motor
It is need system to provide precise position control and speed control in the servo motors system, at the same time, it also asked to fast respond, high speed, turning smooth and stable torque. As for higher requirements System, the control of servo motor is more complex, the system controller, motor drive, position and speed sensing must be formed into a closed loop control system; as to motor commutation, the current the motor uses a lot of Huo Seoul sensor feedback to achieve commutation, the accuracy of switch Hall sensor is not too high. But new-developed AVAGO surpass six-channel commutation optical encoder AEDB-9340 series, it can simply develop the feedback mechanism brushless DC motor (BLDC) servo system closed loop. this machine helps to save significant designation and development of motor manufacturers; and the sensor accuracy of switches is also much higher.
Permanent magnet synchronous AC servo motor technology
With the development of modern industrial right precision, high-speed, high-performance requirements，the traditional motor controller is no longer competent in high requirement occasion , in many demanding real-time, high efficiency occasion, it must use special digital signal processor (DSP) to replace some of the traditional controller function. Especially in the complex control algorithms or optimization algorithms, DSP’s unique ability to quickly calculate the apparent manifestation. In addition, with the advancement of integrated circuit manufacturing technology and the development of power electronics, AC servo has also been considerable development. A position and velocity measurements was built in AC servo motor encoder, in most cases, the waveform directly out from encoder is irregular.
EKCW series brushless motor
China Refrigeration Exhibition "best new product" refers to the products that with the principle of independent research and development, with a certain degree of technical innovation and advanced, in line with low-carbon, green, environmentally friendly principles and fully reflects their own technological progress and development. After a rigorous assessment of the TRP layers, EKCW series DC brushless motor fan coil eventual acquire consensus appreciation and was selected as ‘outstanding new products’ for the show. EKCW Series DC brushless motor fan coil adopts new patented brushless DC technology which researches by EKCW EUROKLIMAT Group and China Aerospace Science and Engineering Group, realizing the diversification of step less speed control by virtue of leading air treatment technology. In this process, brushless motors play a key role.
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