International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 11 Issue: 06 | Jun 2024
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p-ISSN: 2395-0072
Analysis and modeling of grid-connected PV system with three-phase induction motor with different load condition Krishna Kumar1, Dr. Amit Agrawal 2, Preeti Sahu3 1Department of Electrical Engineering, Dr. CVRU Kota Bilaspur Chhattisgarh, India
2Asst. Professor, Dept. of Electrical Engineering, Dr. CVRU Kota, Bilaspur, Chhattisgarh, India 3 Asst. Professor, Dept. of Electrical Engineering, Dr. CVRU Kota, Bilaspur, Chhattisgarh, India ---------------------------------------------------------------------***---------------------------------------------------------------------
Abstract - A 3-phase grid-connected PV system with an
photovoltaic array are linked via a bidirectional power flow. The inverter output uses a lower pass filter to filter out higher-frequency ripples. Since the PLL (Phase Locked Loop) feedback control method produces the necessary reference signal, it is utilized to synchronize the inverter voltage with the grid voltage. The simulation model includes a sinusoidal PWM (Pulse Width Modulation) method and a 3-phase grid associated with a voltage source inverter. The speed of the rotor, stator current, electromagnetic torque, and rotor and stator current of an induction motor operating under various load circumstances have been analyzed. Electromechanical energy converters like 3-phase induction motors convert 3-phase electrical input power into mechanical power.
induction motor running at different loads is presented here. The system employs the Perturb and Observe algorithm for MPPT (Maximum PowerPoint Tracking) to ensure precise and responsive performance. A D.C-D.C boost converter is employed to increase the low D.C voltage from the photovoltaic system. The Dq control strategy combined with the sinusoidal pulse width modulation strategy is utilized as a voltage control method. An inverter and photovoltaic array are linked via a bidirectional power flow. The output of the inverter uses a lower pass filter to filter out higherfrequency ripples. A PLL (Phase Locked Loop) feedback control method is employed for inverter voltage synchronization with the grid voltage, generating the necessary reference signal. Additionally, a simulation model is created to analyze the performance of a 3-phase induction motor, examining rotor and stator currents, rotor speed, and electromagnetic torque under various load conditions
PHOTOVOLTAIC SYSTEM Solar PV systems use photovoltaics to generate electricity. When exposed to light, semiconducting materials create voltage and current. The PV system involves the PV array, MPPT, DC-DC boost converter, Inverter, and Filter.
Key Words: PV System, MPPT, Grid, phase locked loop, bidirectional inverter.
PV Array
Introduction
A network of solar modules that generate power. Each photovoltaic (PV) module is connected to PV cells. Cells generate direct current from solar energy. The solar cell's semiconductor receives more energy from the sun's rays, which makes the electrons become more mobile and produce an electric current. A string is made up of a series of connected modules of PV. A module consists of the many combinations of the solar cells.
Due to the rising demand for energy and the depleting availability of non-renewable resources, the production of power from these sources is hampered by a number of problems, including water loss and environmental problems including the greenhouse effect and global warming. One of the best sources of energy is solar energy. In this work, a 3-phase PV system that is wired to the grid is constructed as well as simulated using MATLAB Simulink. The precision and responsiveness of the photovoltaic system are evaluated by utilizing the MPPT approach, which makes use of the Perturb along with the Observe algorithm.
D.C – D. C Boost Converter A step-up converter is another name for a boost converter. A device called a D.C-D.C boot converter transforms a lower-level D.C voltage into a D.C voltage high-level. It also contributes to a greater overall effectiveness of the system. An inductor, a capacitor, a diode, and a switch such as an IGBT or MOSFET are the components that make up a D.CD.C boost converter. Boost converters, also called step-up choppers, produce output voltages higher than the input voltage.
The solar system in question is composed of 60 cells per module and 1300 parallel strings connected in series. A 5 KW 3-phase load can be powered by each panel's 213.15 W power output. The low D.C voltage of a photovoltaic (PV) system is increased to the higher D.C voltage necessary for grid synchronization using an example of a D.C-D.C boost converter. Every element of the provided system has been developed, reviewed, and tested. An inverter and
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