Beginner’s Guide To Inverter Frequency:

Inverter Frequency is a type of inverter, which is called by different name in different countries like Frequency inverter, microdrive, variable voltage variable frequency drive, AC drive, adjustable frequency drive, adjustable speed drive, variable frequency drive, variable speed drive, frequency converter and frequency changer. It is an electronic device, which converts AC of one frequency to AC of another frequency. Voltage can also be changed with the help of frequency inverter.

Normally, Inverter Frequency contains a rectifier stage that can produce direct current after which the direct current is inverted in order to produce alternating current otherwise called as AC of the required frequency. If the user is looking for conversion of voltage, he can include a transformer either in the output circuitry or in the AC input. The inverter might use IGBTs, IGCTs or thyristors. Even a galvanic isolation can be provided between the output and input AC circuits with the help of the transformer. If the user wishes to improve the converter’s ride-through of brief outages, he can connect a battery to the direct current.

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Images of some of the model frequency inverter are given below:

Inverter Frequency

The inverter frequency might differ in power-handling capability. Some models might handle lower watts, while some might handle higher megawatts.

Frequency inverter can also be used with electric motor, which can generate electricity. As most of us know AC power switches constantly from positive to negative and back again, this is against to DC power, which usually flows in the same direction. Normally, power is given to houses and other commercial buildings as AC with a particular frequency and it changes direction from positive to negative and vice versa and the speed of AC motors are controlled by the level of power going into them. Here comes the role of inverter, which permits the user to convert the frequency and adjust the motor’s speed.

It is not at all possible to change the frequency of AC directly to another frequency without the help of power inverter, which can change the AC power to DC power. As said earlier, for this purpose it uses a device named as rectifier, which is powered by diodes, which is a tiny electric one-way valve. The output of the DC current has two wires, one of these wires is usually positive and the other is negative. When current flows in the positive direction, the diode connected to the positive wire permits electric current to run through, on the other hand the diode connected to the negative wire locks off.

Hope, you might have understood the basic working of a frequency inverter!!!

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