IoT based Multi-level solar inverter

It is not possible to connect power semiconductor switches directly at medium and high voltage levels. This introduced a new unit of inverters as a result of applying higher voltage levels, which can be called multilevel inverters. Multilevel inverters are synthesised close to the sin

Project Title

IoT based Multi-level solar inverter

Project Area of Specialization

Electrical/Electronic Engineering

Project Summary

It is not possible to connect power semiconductor switches directly at medium and high voltage levels. This introduced a new unit of inverters as a result of applying higher voltage levels, which can be called multilevel inverters. Multilevel inverters are synthesised close to the sinusoidal voltage from some levels of DC voltages. Multilevel inverters synthesize the staircase voltage waveform with some lower harmonic content. The output voltages from inverters have reduced harmonic distortions and good quality of waveforms. In recent years, the need for a high power apparatus has been derived from numerous industrial applications. Multilevel inverters have been attractive because of increased power ratings, better harmonic performance and optimized electromagnetic interference (EMI) emission that can be archived with multiple DC levels that are a synthesis of the output voltage waveform. Medium voltage grids, motor drives and utility applications are a few examples, where it is required to convert DC power into AC power. As a consequence, several multilevel power converter structures have been presented. A multilevel inverter is a device that synthesizes near sinusoidal voltage from various DC voltages. Multilevel converters not only reach high power ratings but also enable the utilization of renewable energy sources like photovoltaic, wind, fuel cell, etc. Multilevel converters use more than one DC voltage source, battery or capacitors, to bring forth more than one layer of output voltage. Multilevel inverters have been under research and development for more than three decades and have established successful industrial applications.

Project Objectives

• Design cascade H-Bridge Multilevel Inverter
• Simulation analysis of proposed topology using MATLAB SIMULINK
• Implement a hardware model of the proposed topology. 

Project Implementation Method

Each level of inverter produces three different voltage outputs namely, +Vdc, 0, and –Vdc by connecting ac output with the dc supply using dissimilar combinations of the four switches S1, S2, S3, S4. To take +Vdc, switches S1 and S4 are turned on, and –Vdc can be taken by turning on switches S2 and S3. Turning on S1 and S2 or S3 and S4, the voltage of output becomes 0. The ac outputs of all full-bridge inverter levels are connected in series to get the synthesized voltage waveform as the sum of the inverter outputs.

Benefits of the Project

In this project we would be enabled to get efficient solar power for our houses and industry We get the Cost-effective Industrial Applicable Inverter which Harmonic Less as compared to single-level As Clean & Economical Efficient energy was the neediest thing for Pakistan's local industry as we are facing energy crisis this is also an IOT Based Smart System so we can monitor and analyse it remotely which would be Helpful for upcoming Industry 4. O

Technical Details of Final Deliverable

It is a Multi-level H bride technique for high efficiency, with enabled IOT based web monitoring. The project also includes the design calculation In addition to the harmonic parameter analysis of Inverter.

Final Deliverable of the Project

Hardware System

Core Industry

Energy

Other Industries

Core Technology

Others

Other Technologies

Sustainable Development Goals

Quality Education

Required Resources

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