What is Inverter?? And Classification of Inverter !!

Definition:

Inverter is device which converts DC power to AC power at a certain output voltage and frequency or at a certain current level and frequency.

Main Two parts of Inverter :

Here is two main parts of Current source inverter and Voltage source inverter.

Current Source Inverter − A current source inverter is supplied with a variable current from a DC source that has high impedance. The resulting current waves are not influenced by the load.

Voltage Source Inverter - The voltage source inverter has stiff DC source voltage that is the DC voltage has limited or zero impedance at the inverter input terminals.

What is Inverter?? And Classification of Inverter !!

Electrical power is generally transmitted and used in the form of alternating current.

The inverter is the circuit which converts a dc power to ac power at desired output voltage and frequency. The AC output voltage could be set a fixed or variable frequency.

Block Diagram of Inverter

The basic block diagram of Inverter is shown in below image...

Block Diagram of Inverter

Classification of Inverter

Inverter are classified according to different points which will be mentioned below:

According to the Nature of Voltage

Inverters can be broadly classified into two types

(1) Voltage source inverters (VSI) and

(2) Current source inverters (CSI)

A voltage source inverter (VSI) has the dc source which have small impedance. Whenever a current source inverter (CSI) have high impedance.

According to the Connections :

Inverters are classified into three types

(1) Series Inverters

(2) Parallel Inverters

(3) Bridge Inverters

According to Number of Phases :

(1) Single Phase Inverters

(2) Three Phase Inverters

Applications of Inverters

(1) Industrial application

(2) Induction heating

(3) Stand by supplies providing for Aircrafts, ship-boards.

(4) Uninterrupted power supplies (UPS)

(5) HVDC transmission lines.