Power Electronics

Power Electronics.

 

Modern power electronic technology direction of development is low-frequency technology to deal with the problem from the traditional power-based electronics, high frequency technology to deal with the problem of a modern power electronics direction of change.

 

Power electronics began in the late fifties and early sixties rectifier device, and its development has gone through the rectifier age, time and frequency inverter era, and to promote the power electronics technology in many new fields of application.

 

The late eighties and early nineties developed in order to power MOSFET and IGBT as the representative, set high frequency, high voltage and high current in a complex power semiconductor devices, that the traditional power electronics technology has entered the era of modern power electronics.

 

The industrial use of electricity from the power frequency (50Hz) AC generators, but about 20% of the energy consumption is the DC in the form of which is the most typical electrolytic (non-ferrous metal and chemical raw materials need to DC solution), traction (electric locomotives, diesel electric drive, subway locomotive, city trolley buses, etc.) and DC drives (rolling, paper, etc.) three main areas.

 

High-power silicon rectifier can be efficiently transformed into the DC-frequency alternating current, so in the sixties and seventies, high-power thyristor rectifier tube and to the development and application of great development. At that time, had set off - a big way around the silicon rectifiers factory stock boom, the current manufacture of large and small manufacturers of semiconductor silicon rectifier is a product of that time.