TYPES OF SOLAR INVERTER

Solar panels output is Direct Current but it is not directly used for home appliances and cannot connected to the grid so it is need to convert Alternating current by using inverter.It has several types

they are explained below

solar system works:

Micro Inverter:

It consist small box behind the solar panel .micro inverter converts DC to AC from each panel.

 

Prons:

• Longer Warranty- warranty of 20-25 years – 10-15 years longer than central inverters.

• Easily Expandable-you can expand the solar panel later easy with micro inverter.

• No Single Point of Failure-if any one of the solar panel is affected the solar system is unaffected and running continuously.

Cons:

• Increased complexity in installation

• Increased maintenance costs due to there being multiple units

• some micro-inverters may have issues in extreme heat.

String inverter:

it has large box placed distance from array.This type is used in home and solar plants.

Pron:

• 3 phase variations available 
• Low cost
• Allows for high design flexibility 
• High efficiency
• Possibility to extend warranty to 20 years

Cons:

• High voltage levels present a potential safety hazard
• Higher DC watt unit cost.
• More inverter connections

Central inverter:
This type of inverter designed for large application like industrial and solar power plants.it has very large size .arrays outputs are collected and given to the central inverter.
 
Prons:

• Low capital price per watt 
• High efficiency 
• Comparative ease of installation

Cons:

• Large size

• More noise

• if the potential low at single area, the entire system is failure.

• 10-15 year warranty it is less compare to other inverter