OPTIMIZING PHOTOVOLTAIC SYSTEM PERFORMANCE USING CT SENSORS WITH REAL-TIME MONITORING AND PI CONTROL

REXHA, Lum and BEQA, Fatjon (2025) OPTIMIZING PHOTOVOLTAIC SYSTEM PERFORMANCE USING CT SENSORS WITH REAL-TIME MONITORING AND PI CONTROL. Journal of Applied Sciences-SUT, 11 (21-22). pp. 157-164. ISSN 2671-3047

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Abstract

This study investigates the integration of current transformer sensors and Proportional-Integral control strategies to optimize the performance of grid-connected photovoltaic systems under regulatory power constraints. The system analyzed incorporates CT sensors to enable precise and real-time monitoring of currents in each of the phases, providing feedback for controlling energy flow. A Bluelog XC controller was used to implement a PI control algorithm and to maintain a fixed feed-in limit. Results from a real-world PV installation are shown in this paper and they demonstrate that the PI controller effectively regulated active power within ±1.5% of the target setpoint. Data analysis over daily and monthly intervals further confirmed precise system behavior. This work confirms the integration of CT sensors and PI regulation for enhancing energy management in PV systems offers a reliable approach to maintain performance and maximize self-consumption while staying within grid regulations.

Item Type:	Article
Uncontrolled Keywords:	Photovoltaics, CT sensors, PID control, active power control, Bluelog XC, energy management
Subjects:	T Technology > T Technology (General)
Divisions:	Faculty of Engineering, Science and Mathematics > School of Civil Engineering and the Environment
Depositing User:	Unnamed user with email zshi@unite.edu.mk
Date Deposited:	11 Dec 2025 14:49
Last Modified:	11 Dec 2025 14:49
URI:	http://eprints.unite.edu.mk/id/eprint/2175

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