Cascaded Multilevel PV Inverter With Improved Harmonic Performance During Power Imbalance Between Power Cells

Project Code :TEMAPE84

Objective

The main objective of the project is to mitigate voltage and current distortions by injecting power with lower voltage from the shaded cells without altering the PV voltage.

Abstract

In this project, a multilevel topology for photovoltaic (PV) applications is proposed, where an H6 bridge power cell is used instead of an H-bridge one. In case of solar irradiance mismatch among the power cells, the proposed converter injects power with lower voltage from the shaded cells without altering the PV voltage; hence maintaining the MPPT operation. 

This modification allows us to retain an equal duty cycle in all the power cells whatever the meteorological conditions are present; consequently, maintaining good output voltage and current waveform qualities.

Keywords: Cascaded converter, grid connected, H-bridge, maximum power point tracking (MPPT), modular multilevel converter (MMC), partial shading, perturb and observe, photovoltaic (PV), power quality

NOTE: Without the concern of our team, please don't submit to the college. This Abstract varies based on student requirements.

Block Diagram

Specifications

Software Configuration:

Operating System :  Windows 7/8/10

Application Software :  Matlab/Simulink

Hardware Configuration:

RAM :  8 GB / 4 GB (Min)

Processor :  I3 / I5(Mostly prefer)

Learning Outcomes

  • Introduction to Matlab/Simulink
  • What is EISPACK & LINPACK
  • How to start with MATLAB
  • About Matlab language
  • About tools & libraries
  • Application of Matlab/Simulink
  • About Matlab desktop
  • Features of Matlab/Simulink
  • Basics on Matlab/Simulink
  • Introduction to modular multilevel converter
  • Introduction to multilevel inverters
  • Introduction to time delay compensation
  • Introduction to voltage ripple compensation
  • Introduction to open loop control
  • Introduction to closed loop control
  • Introduction to Matlab/Simulink software
  • Introduction to modular multilevel converter
  • Introduction to multilevel inverters
  • Introduction to  solar power generation
  • Introduction to DC-DC boost converter
  • Introduction to H-bridge Converter
  • Introduction to phase shifted PWM
  • Introduction to IGBTs
  • Introduction to closed loop control
  • Introduction to Matlab/Simulink software
  • Introduction to power electronics converters
  • Introduction to  phase locked loop (PLL)
  • Introduction to PWM techniques
  • Introduction to gates
  • Design of PLL
  • Design of solar PV system
  • Design of MPPT controller
  • Design of DC – DC boost converter
  • Design of AND gates
  • We can learn about universal gates
  • We can learn about the generation of gate pulses to the cascaded H bridge
  • Introduction to controllers
  • Design of PI controller
  • Design of cascaded H bridge inverter
  • Project Development Skills:
    • Problem analyzing skills
    • Problem solving skills
    • Creativity and imaginary skills
    • Programming skills
    • Deployment
    • Testing skills
    • Debugging skills
    • Project presentation skills
    • Thesis writing skills

Demo Video