A Grid Frequency Support Control Strategy of the Three Phase Cascaded H Bridge Based Photovoltaic Generation System

Also Available Domains Multilevel Converters

Project Code :TEPGPS550


The main objective of this project is to improve the grid frequency stability in a grid connected solar PV system


The Cascaded H-bridge (CHB) inverter has become a promising candidate for the PV generation system by virtue of advantages such as modular structure and direct grid-connection without power frequency transformers. An inverter control strategy with grid frequency support function is proposed in this paper for the three phase CHB based PV generation system. With the PV string active power reserve, grid frequency dynamic characteristics are improved without energy storage devices. In order to solve the common module power unbalance problem for the CHB topology, the PV string output power is controlled to be balanced with the reserved power distribution control between PV strings proposed in this paper. The H-bridge inverter input power balance is maximized, and balanced three phase grid-connected current output is achieved. The overmodulation risk of H-bridge modules is reduced. At last, simulation models are built in Matlab/Simulink.

Keywords: Active power reserve, cascaded H-bridge inverter, frequency support, and photovoltaic power generation.

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

Block Diagram


Software Configuration:

Operating System :  Windows 7/8/10

Application Software :  Matlab/Simulink

Hardware Configuration:

RAM :  8 GB

Processor :  I3 / I5(Mostly prefer)

Learning Outcomes

  • Introduction to Matlab/Simulink
  • 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 controllers.
  • Study of PWM techniques.
  • 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

Final year projects