A novel cascaded control to improve stability and inertia of parallel buck boost converters in DC microgrid

Project Code :TEPGPE68

Objective

The main objective of the project is to synchronize the output voltage at the pcc, to improve the inertia of the converter-interfaced DGs.

Abstract

In this project, a control strategy for dual-source buck buck-boost fused converter (DSBBFC), utilizing two inputs of different dc levels is proposed. The converter has to maintain output voltage and low voltage source current at their respective reference levels, irrespective of the variation in loads. A decoupling scheme is proposed for the DSBBFC, which in turn results in two individual control loops for the said converter. 

This developed control strategy ensures the control of the variables independently, irrespective of their coupling nature of the operation. The proposed control is implemented successfully in the simulation, and excellent dynamic performances are shown during the considered operating conditions. The proposed system is modeled by using MATLAB/Simulink.

Keywords: Buck-boost Converter, DC micro grid, Droop control, Nonsingular terminal sliding-mode control (NTSMC), Virtual inertia control.

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 power electronics
  • Introduction to  DC-DC Converter
  • Introduction to buck boost converters
  • Introduction to boost converters
  • Introduction to double-switch buck-boost converter
  • Introduction to isolated buck-boost converter
  • Introduction to  phase locked loop (PLL)
  • Introduction to PWM techniques
  • Introduction to improved dynamic response strategy with dual phase-shift
  • Introduction to extended  phase shift
  • Introduction to DAB
  • Introduction to Dual  phase shift
  • Introduction to Single  phase shift
  • Introduction to transformers
  • Design of PLL
  • We can learn about virtual inertia control
  • We can learn about terminal sliding mode control
  • We can learn about  nonsingular terminal sliding mode control
  • We can learn about virtual inertia control
  • We can learn about voltage synchronization  control
  •  Introduction to controllers
  • Introduction to IGBTs
  • Introduction to Controllers
  • Introduction to Proportional Integral
  • We can learn about cascaded voltage loop control
  • We can learn about cascaded current loop control
  • Design of cascaded voltage loop control
  • Design of cascaded  current-loop control
  • Design of  parallel buck-boost converters
  • Introduction to Parks transformation
  • Design of parks transformation
  • Introduction to Clarks transformation
  • Design of Clarks transformation
  • 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