Lyapunov Function Based Control Strategy for Single-Phase Grid-Connected PV system with LCL-filter

Project Code :TEMAPS573


The main objective of this project is to improve the stability under changing atmospheric conditions in grid connected PV system with LCL filter.


In this project, a modified Lyapunov function based control (LFBC) scheme for single-phase two-stage grid-connected photovoltaic system with LCL-filter is presented. The modeling and stability analysis of system is done by considering the effect of DC-link capacitor to achieve global stability of the system with the uncertainty of solar irradiance. The proper selection of controller gain and stability of the system is studied. Further, an active damping method considering capacitor voltage feedback loop is also implied to eliminate the effect of resonance and improves the power quality. The performance and analysis of the proposed LFBC is validated on Matlab/Simulink Software.

Keywords: Two-stage inverter, Photovoltaic system, Lyapunov function, LCL-filter.

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