Inverter power supply.

Inverter power supply.

 

AC motor drive power is mainly used for the frequency control, and its electrical transmission system in the increasingly important position to occupy, has been a huge energy savings.

 

Inverter main circuit are AC - DC - AC program. Frequency power supply through the rectifier into a fixed DC voltage, then the composition of high-power transistors or IGBT PWM frequency converter, the DC voltage into a reverse voltage, variable frequency AC output, power output sine wave, used to drive AC induction motor for variable speed.

 

The following international 400kVA inverter power supply series products have come out. The early eighties, Toshiba AC frequency control technology was first used in air conditioner. To 1997, its share has reached Japan, more than 70% of household air conditioners. Inverter air conditioner with a comfortable, energy saving.

 

China began to study in the early 90's inverter air conditioner, 96 production line was introduced in frequency air conditioners, inverter air conditioner gradually develop and produce hot spots. Will be expected to reach a peak around 2000. In addition to frequency power inverter air conditioner, but also requires suitable for frequency control of the compressor motor.

 

Optimal control strategy, selection of functional components, is the further development of air conditioning frequency power development.