The technology of alternating variable frequency adjustable speed has developed rapidly since the 80\\\’s last century. The motor of alternating transmission system has so many specialties, such as small cubage, lightweight, high speed and high-power that the technology of alternating transmission leads the direction of the development of locomotive transmission technique. Now, our domes...

A visual servo and control system for welding seam tracking was introduced in the article. The content is consist of hardware configure, the method for welding seam recognition, the control strategy for welding seam tracking and its practical result of experiment.In the article, the hardware which based on nested industrial computer and laser image sensor for welding seam tracking of V-groove ...

With the progress of society and ideal changing of people’s tastes, sanitary wares are necessary equipments in modern families and publics. As an important leaguer of sanitary wares, washing basin is being more artistic and personal. In the sanitary industry, manual modeling is still widely applied in the developing process of new products. This situation results in big workload, long devel...

Owing to its nice surface performance, Cu-Ni alloy is a kind of excellent material for coinage. Furthermore, Cu-Ni alloy plating has wide application prospect due to its advantageous price and false-proof characteristics. However, the electric potential difference between copper( II) and nickel( II) is 0.6v, and owing to their other similar characteristics, the complexation properties of most...

This paper offers a piece of method about how to design the control-system of AC drive . Based on EtherNet and DeviceNet network, AC drive can be easy controlled. Use DeviceNet as bottom medium, and use EtherNet as top medium, we can set up the Man-Machine Interchange through RSView32 to control the distant AC Drive.Based on the communication between Ficldbus control system and Matlab modules,...

With the rapid development of information technology and progress of society, there comes demand for more efficient control over and multiple functions from illumination, thus intelligent light system comes into being. It exploits the technologies of electronics, communications and computer network and links various lighting facilities for more efficient management.On referring to massive pap...

China\\\’s building energy consumption is about the country\\\’s total energy use to 26.7%, energy consumption ranked first. Therefore, energy-saving construction delay. In the construction group, the museum building volume and scale of investment accounted for a considerable proportion of the museum each of the electrical load of about 3000 ~ 5000 kW, electricity is enormous pote...

The thesis proposes the unique properties of water-supply inverter which is special to the ordinary in constant-lever water-supply system. Based on Analysis of energy consumption, draw a conclusion that Energy-saving applied only in specific situations when using water-supply frequency inverter.Two main problems exit in the large volume water supply system .First, because pip- -elines are so ...

Variable—frequency technology is a key component of the power electronics technology, which has a wide range of applications, including AC motor speed control and power supply, and many other important areas.This thesis presents a VVVF power supply systems based on DSP(Digital Signal Processor TMS320LF2407). First it introduced the topology and the principle of variable frequency power supp...

The electrified railway is the trend of railway transport development for its prominent advantages. In our country, most electric locomotives are of rectification loads, thus a great lot of harmonic currents (mainly including the 3rd,5th,7th order)prcduced by train is directly injected into the power system and cause voltage distortion. In the meanwhile, harmonic currents will bring a lot of ...