Design of a GaN HEMT Based single phase inverter

The increase in tariff rates imposes a big burden on the local electricity consumers of Pakistan. This invokes a demand of an efficient alternative energy production resource that can cater the energy needs of the consumer in an affordable cost. All alternative energy resources requires inverters to

Project Title

Design of a GaN HEMT Based single phase inverter

Project Area of Specialization

Electrical/Electronic Engineering

Project Summary

The increase in tariff rates imposes a big burden on the local electricity consumers of Pakistan. This invokes a demand of an efficient alternative energy production resource that can cater the energy needs of the consumer in an affordable cost. All alternative energy resources requires inverters to convert the energy to usable form. 
Currently, all the commercially available inverters are fabricated using silicon-based semiconductor devices. However, silicon-based MOSFET being a mature technology, has by now reached its theoretical limits, and further improvement is hardly possible. Wide band-gap semiconductor devices such as GaN HEMT in its initial stages of development have already surpassed the performance of silicon-based MOSFETs. Thus the GaN HEMT can be operated at the higher switching frequency and reduced size.
We can use GaN HEMT technology in different devices to get high efficiency and high power density. A GaN HEMT device based single-phase inverter with high switching frequency is proposed to evaluate the advantages of GaN power transistors in this project.  GaN HEMT devices in inverter design have not been fully explored by researchers, and the purpose of this project is to evaluate the high-efficiency capabilities of inverters that can be achieved using new GaN HEMT technology.

 

Project Objectives

 Simulation of GaN HEMT based single phase inverter using          LT-SPICE
   Hardware implementation of the simulated inverter
 

Project Implementation Method

An inverter is a circuit which converts a DC power into an AC power at desired output voltage and frequency. There are different control methodologies that can be used to implement a single-phase inverter. The DC voltages are fed from a renewable energy source and the output obtained from the inverter can be used to operate the AC load.
Implementation of a single-phase inverter that produces a symmetric AC output voltage of desired magnitude and frequency consists of the following major blocks:

1.    DC link capacitor design
2.    Design of switching circuit based on GaN
3.    Cooling system
4.    Output filter design
5.    Hardware implementation design
6.    Performance evaluation
 

Benefits of the Project

•  High performance with high efficiency inverter.
•  Compact and smart inverter design.
   

Technical Details of Final Deliverable

Hardware based Single phase GaN-HEMT inverter.

Final Deliverable of the Project

Hardware System

Core Industry

Energy

Other Industries

Core Technology

Others

Other Technologies

Sustainable Development Goals

Affordable and Clean Energy, Industry, Innovation and Infrastructure, Sustainable Cities and Communities

Required Resources

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