Title :
Real time implementation and comparison of PI and modified Inc Cond control algorithms for solar applications
Author :
Kolluru, Venkata Ratnam ; Mahapatra, Kamalakanta ; Subudhi, Bidyadhar ; Ramesh, Tejavathu
Author_Institution :
NITR, Rourkela, India
Abstract :
This paper depicts the comparison of control algorithms for a Photovoltaic (PV) system in real time. Modified Incremental Conductance (Inc Cond) with fixed step size algorithm is used with a DC-DC boost converter to track maximum power from a PV system. PV output is connected to a Boost converter to regulate and increase the voltage upto a desired level. The modified Inc cond MPPT technique is compared with a conventional PI controller and was observed that, the modified Inc Cond MPPT is tracking 7.4% more power than the conventional PI controller. MPPT control algorithms are developed, compared and simulated in MATLAB/SIMULINK. Simulated and real time results are presented and discussed in this paper. The real time results are verified with digital simulator OPAL-RT experimental setup.
Keywords :
DC-DC power convertors; PI control; electric admittance; mathematics computing; maximum power point trackers; power generation control; real-time systems; solar cells; DC-DC boost converter; MATLAB/SIMULINK; PI controller; PV system; digital simulator OPAL-RT experimental setup; fixed step size algorithm; modified Inc Cond control algorithms; modified inccond MPPT technique; modified incremental conductance; photovoltaic system; real time implementation; solar applications; track maximum power; Arrays; Inductors; Mathematical model; Maximum power point trackers; Real-time systems; Transistors; Voltage control; DC DC boost converter; Incremental conductance; Maximum power point tracking; OPAL-RT; PI controller;
Conference_Titel :
Power Electronics (IICPE), 2014 IEEE 6th India International Conference on
Print_ISBN :
978-1-4799-6045-3
DOI :
10.1109/IICPE.2014.7115780
