Performance enhancement of PV system using cascaded boost converter with CTO-PI control
|
Full Text |
Pdf
|
|
Author |
Pradyumna Kumar Dhal, Dakyrmen Kongri, Shaik Hussain Vali and Vempalle Rafi
|
|
e-ISSN |
1819-6608 |
|
On Pages
|
187-195
|
|
Volume No. |
21
|
|
Issue No. |
3
|
|
Issue Date |
April 10, 2026
|
|
DOI |
https://doi.org/10.59018/022629
|
|
Keywords |
RES, PV system, cascaded boost converter, class topper optimization algorithm, PI controller, PWM generator.
|
Abstract
Renewable Energy Sources (RES) are widely used as the primary energy source in modern civilization. The utilization of clean energy, such as solar energy, is efficiently utilized for generating pure power generation. Solar Photo Voltaic (PV) modules produce low output voltage, and it is essential to regulate and improve it to attain optimal power. The inherent intermittency of solar energy and fluctuations in irradiance pose challenges in maintaining a stable and regulated DC output. To meet load requirements, an insolar PV system with a cascaded boost converter is integrated, in which high voltage gain with a lower value of duty ratio is attained. This paper presents a PV power conversion system utilizing a Class Topper Optimized (CTO) Proportional-Integral (PI) Controller. A closed-loop control mechanism is implemented, where the CTO-PI controller efficiently regulates the output of the designed converter by minimizing the error between the reference voltages. The proposed approach is implemented in MATLAB/Simulink. From the simulation results, the improved converter attains an efficiency of 95.19% with a settling time of 0.1s. The system's capability is validated to maintain consistent output voltage despite fluctuations in solar irradiance and load conditions, making it highly suitable for load applications.
Back