Last updated on October 9th, 2019
Let’s evaluate our inverters definition and a few examples of inverters in practical use.
What are Inverters?
Inverters are electronic apparatus or circuitry devices that are used to convert direct (DC) current into alternating current (AC). Inverters are not the source of power as they do not generate electricity themselves but they convert the power from a direct current source. An inverter or a power inverter can either be purely electronic or as a combination of mechanical effects and electronic circuitry.
Input voltage is the power that goes into the inverter while the output is what comes out after the conversion. The input voltage comes from the direct current source and may range depending on the design and purpose.
For example, it can start from 12 V DC for the inverters which run from a rechargeable lead battery to hundreds of volts where the inverter runs as a part of a direct high-voltage current (DC) power transmission system.
Definition of Inverters and Examples
When talking about the definition and the different types of inverters, we must first consider some aspects that affect the classification of inverters. Power Inverters are typically classified according to the nature of their output waveform. Inverters play an important role in solar and wind power for a generation.
Types of Inverters
There are two main types of inverters namely:
Square wave inverters
The waveform of the current output from these inverters is in the form of a square. Since the power current received from the power grid is not a square wave, it may produce a buzzing sound when using the current flow from these inverters. Square wave inverters are also called digital inverters or modified-sine wave inverters by some manufacturers.
Pure Sinewave inverters
This model of inverters gives a pure and safe form of current. The current from these inverters is considered to be very safe for the sensitive devices and appliances in our homes.
We can also classify inverters according to their size, mode of operation and configuration topography. According to these dimensions, we would have the following types;
- Stand-alone inverters – They are inverters that provide stable voltage and also frequency to load.
- Grid-connected inverters – They are the most common ones.
- Module Inverters or Micro-Inverters- They are the smallest and typically range between 50 and 500 W.
- Multi-string inverters – These kinds of inverters range from 1 kW to 10 kW.
- String inverters which range from a few hundred Watts to a few kW.
- Central inverters – They typically range from several kW to 100 MW range.
Benefits of Power Inverters
- Inverters enable the conversion of the Direct Current (DC) to Alternating Current (AC) therefore allowing for the use of different appliances which require a different amount of power
- Electricity has made every aspect of life interesting with the emergence of different gadgets that use of power and machines that have made life a lot easy.
What do you think of our inverters definition? Please let us know if you found our definition helpful.
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