INTEGRATED PV AND BATTERY ENERGY CONVERSION OF STAND ALONE SYSTEM WITH MPPT AND POWER QUALITY IMPROV

e-ISSN: 2582-5208 International Research Journal of Modernization in Engineering Technology and Science Volume:02/Issue:09/September-2020

Impact Factor- 5.354

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INTEGRATED PV AND BATTERY ENERGY CONVERSION OF STAND ALONE SYSTEM WITH MPPT AND POWER QUALITY IMPROVEMENT FEATURES Swapnil G. Tathe*1, Prof. A.V. Naik*2 *1M.Tech,

*2Asst.

Student, Department Of Electrical Engineering MGM’S JNEC Aurangabad.

Maharastra, India.

Professor, Department Of Electrical Engineering MGM’S JNEC Aurangabad, Maharastra, India.

ABSTRACT Integrated photo voltaic (PV) and battery energy conversion system, maximum power point tracking (MPPT) system, Pert and Observe (P&O) method, automatic battery charging and discharging controller, Battery energy storage system (BESS) is regulated to balance power between PV generation and load, harmonics reduction by changing the switching frequency of MOSFET which is generated by electronics devices and non-linear loads., Pulse width modulation technique[PWD], , new technology developed in this paper output variable frequency helps to change the switching frequency of power devices.

Keywords: MPPT, PV, P&O, MOSFET, BESS, PWD,CV,DC-DC,INC.

I.

INTRODUCTION

There are a number of renewable energy resources, PV energy is the fastest growing renewable energy source one of them. MPPT: The PV source is a nonlinear power source and a direct connection to the load will not make optimal use of the PV system. To make better use of PV source, it is necessary to provide an intermediate electronic controller between the sources, battery, and load Which is the MPPT technique, it is possible to extract the maximum power from the PV system, thus improving the energy efficiency of the PV system. Several control algorithms have been in the literature to extract maximum power from PV arrays, such as incremental conduction (INC), constant voltage (CV), and pert and observe (P&O), MPPT Conduction (INC), The techniques most commonly used to achieve MPPT are due to the simplicity and performance of P&O. Several DC-DC converter topologies are available for tracking MPP in PV generating system. Pulse Width Modulation: PV generate dc power which convert to AC by inverter.

This is the non Linear device that produce harmonics in output AC, results in power quality issue. The harmonic will disturb the sinusoidal wave form and reduce the performance of the loads, It will result in increased temperature of the circuit, pulsing torque of the motors, misfire of variable speed drives. The technique used to eliminate this power quality problem by PWD. The PWD technique reduced harmonics in the output of the converter by generating switching signal with the help of comparing the carrier signal with the reference signal. Battery charge controller: generated PV energy and load, charging state of the battery, On charging it is necessary to manage balance between battery protection and optimum use of the battery and this function is done by the charge controller, it is the electronics base circuit.

II.

METHODOLOGY

MPPT technique: MPPT technique is used for precise maximum power from solar module with the help of DC to DC converter topology, which is used to extract maximum power from PV module to load or battery.

MPPT have a number of techniques. These are open circuit voltage method, short circuit current methods, fuzzy logic technique, incremental conduction, pert and observe (P&O). Pulse width modulation (PWD) Switching technology of pulse width modulation (PWD) has been popular in the field of power electronics, and drive systems. There are three PWD methods that can suit all applications. Different pulse-width modulations for various industrial applications, according to advance technology in solid state electrochemical electronic devices and microprocessors. Multiple pulse width modulation, Sinusoidal pulse width modulation, Single pulse width modulation: DC-AC converter, also known as

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e-ISSN: 2582-5208 International Research Journal of Modernization in Engineering Technology and Science Volume:02/Issue:09/September-2020

Impact Factor- 5.354

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inverter, convert DC power to AC power at a desired Output voltage and frequency. One pulse per half cycle which will control the output voltage and reduce the amount of harmonics content in the output.

Multiple pulse width modulation: Number of pulse per half cycle used. The gating signal is produced by comparing the reference signal with the triangular carrier wave. The frequency of the reference signal sets the output frequency and the carrier frequency determines the number of pulses per half cycle.

Output voltage possible through by Variation of modulation index from 0 to 1 which reduced harmonics of the inverter output. Sinusoidal pulse width modulation (SPWM): This is the best technique among the above techniques. The carrier wave is compared with reference signals and gating signal are generated, Which is delivered to the power devices. Power device operate according to the gating signals given to them and there is a decrease in the harmonics and control output voltage and frequency. It is highly efficient for high harmonics content in the output of the inverter.

III.

MODELING AND ANALYSIS

Sinusoidal pulse width modulation technique: The carrier wave is compared to the result of the reference signals and the resulting signals that are given to the power devices.

Figure 1: SPWM technique.

DC to DC converter maintain values of voltage and current that will extract the maximum power from the solar PV.

Figure 2: V-I Characteristics curve.

IV.

RESULTS AND DISCUSSION

MPPT techniques are used to extract the maximum power from PV module with the help of DC to DC converter and increase the efficiency of PV solar. The output voltage of the inverter is control and www.irjmets.com

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e-ISSN: 2582-5208 International Research Journal of Modernization in Engineering Technology and Science Volume:02/Issue:09/September-2020

Impact Factor- 5.354

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harmonics material is reduced with the help of technique sinusoidal pulse width modulation. Electrical appliances work satisfactorily due to the power quality.

V.

CONCLUSION

The proposed framework is useful for increasing PV solar capacity, which will give ideas about future planning of renewable energy sources and how to maintain power quality at the desired level. Power quality is very important for better operation and less maintenance of any electrical equipment.

VI.

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