The functions of frequency converter and UPS are similar, especially the power frequency UPS?
The obvious difference between the two:1, the former output amplitude and frequency adjustable, the latter output is a single fixed amplitude, frequency;2, the former does not use batteries, and the latter requires batteries.
The inverter is actually an inverter. It is the first AC into DC. And then use the electronic element to switch DC power into AC inverter. In general. Large power SCR. And an adjustable frequency. The device can be adjusted in a certain range of frequency is used to control the motor speed. The speed can be adjusted. In a certain range. The inverter is widely used in AC motor speedThe UPS power supply is also called an uninterruptible power supply. An inverter with an adjustable frequency. Battery powered. For short time power supply of computer and other equipment in case of power failure. Prevents sudden power loss and file loss.
The frequency converter is used to control the motor stepless speed regulation. The power frequency UPS is an uninterrupted power supply, which is used for the power supply of the precision electronic equipment
Frequency converter: the principle is AC-DC-AC conversion, output AC amplitude, frequency adjustable, auxiliary function more, more used for AC motor frequency control, no battery;UPS: is intended as a standby power supply uninterruptible power supply, electrical equipment, usually the power is converted to DC and stored through the inverter output fixed amplitude and frequency power supply is cut off the AC power supply, with battery.
Frequency converter is the application of frequency conversion technology and micro electronics technology, by changing the power supply frequency of the motor to control AC motor power control equipment. The frequency converter is mainly composed of rectifier (AC DC converter), filter, inverter (DC AC converter), brake unit, drive unit, detection unit, micro processing unit and so on. Inverter by internal IGBT drive voltage and frequency off to adjust the output power, the power supply voltage required to provide according to the actual needs of the motor, so as to achieve the purpose of speed, energy saving, in addition, there are a lot of protection drive, such as over-current, over-voltage, overload protection and so on. With the continuous improvement of the degree of industrial automation, inverter has also been widely used.UPS is an uninterruptible power supply, including an energy storage device, a rectifier, inverter as the main component of the regulator, frequency stabilized AC power supply. The main use of battery energy storage power supply device to provide uninterrupted computer / server, storage equipment, network equipment, computer communication network system and industrial control system, need continuous operation of industrial equipment in power outages. When the power input is normal, UPS electric voltage supplied to the load, the UPS is an AC electric regulator, it is also to the storage device such as a battery charging; when the power interruption (outage), UPS immediately to the storage device (such as batteries or fly wheel the electric energy storage system), continue to supply alternating current to the load by the method of inverse transformation, the load to maintain normal working and protect the load of software and hardware is not damaged.
