SOLAR POWER FOR SEPIC

1. STUDENT NAMES
BATCH NUMBER:
Title: Utilization of Solar Energy for Water Pumping
Subtitle: System Employing SEPIC Converter-Driven Induction Motor Operation with
Variable/Frequency (V/F) Management
PROJECT GUIDE:
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CONTENTS
1. Introduction
2. Objectives
3. Scope and Novelty
4. Structure/ Design
5. Simulation
6. Conclusion and Reference

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OBJECTIVES
 The paper aims to introduce and evaluate a novel solar energy utilization system for water
pumping. It focuses on a setup incorporating a SEPIC converter-driven induction motor with
Variable/Frequency (V/F) management.
 Key objectives include assessing system efficiency, analyzing SEPIC converter performance,
evaluating V/F management strategy, modeling and simulating the system, ensuring robustness,
conducting cost-benefit analysis, highlighting environmental benefits, proposing optimization
strategies, discussing practical implementation, and comparing the system with existing
alternatives. The goal is to contribute insights into an efficient, reliable, and environmentally
friendly approach to solar-powered water pumping.

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SCOPE & NOVELTY OF THE PROJECT
Scope:
The scope of the proposed system lies in addressing the increasing demand for sustainable and efficient water
pumping solutions, especially in remote or off-grid areas where traditional power sources may be unavailable. This
paper explores the integration of a SEPIC converter-driven induction motor with Variable/Frequency (V/F)
management as a means to harness solar energy for water pumping. The scope encompasses various aspects, including
system efficiency, reliability, environmental impact, and economic viability.
Geographical Reach: The system could find applications in regions with abundant sunlight but limited access to grid
power, facilitating water supply for agriculture, livestock, or community needs.
Versatility: The system can potentially be adapted to various water pumping requirements, providing a scalable and
versatile solution for different contexts.
Renewable Energy Integration: By utilizing solar energy, the system contributes to the global shift towards renewable
energy sources, aligning with sustainable development goals.
Technology Integration: The paper explores the integration of advanced technologies such as SEPIC converters and
V/F management, showcasing a sophisticated and modern approach to solar-powered water pumping.

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SCOPE & NOVELTY OF THE PROJECT
Novelty:
The novelty of the proposed system lies in its unique combination of elements that differentiates it from traditional
solar water pumping systems. Key novel aspects include:
SEPIC Converter Integration: The incorporation of a SEPIC converter adds a novel dimension to the system,
allowing for efficient power conversion and control under varying solar conditions.
Variable/Frequency (V/F) Management: The utilization of V/F management introduces a dynamic control mechanism
for the induction motor, optimizing performance and adapting to changing operational requirements.
Comprehensive Approach: The paper presents a holistic analysis, covering efficiency, reliability, environmental
impact, and economic considerations. This comprehensive approach distinguishes it from studies focusing solely on
one aspect.
Optimization Strategies: The exploration of optimization strategies adds a forward-looking perspective, emphasizing
continual improvement and adaptability in real-world applications.
Practical Implementation Insights: The discussion on practical implementation challenges and solutions contributes
practical insights, bridging the gap between theoretical research and real-world deployment.

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BLOCK DIAGRAM
Fig 1 : Configuration of standalone solar water
pumping system

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Work Flow

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SIMULATION DIAGRAM
Fig.3. Simulation of PV module Fig.4. INC MPPT Simulink model

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SIMULATION OUTPUT

10. Simulation
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VSI output voltage waveform Induction motor speed waveform

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CONCLUSION
 Solar water pumping system using Sepic Converter fed IMD is
proposed. The proposed system is designed, modeled and simulated in
the MATLAB/Simulink environment. Maximum Power is extracted from
solar Panel using Incremental Conductance MPPT algorithm and it is
fed to sepic converter which in term supplies the VSI.
 The voltage received from PV Module is 440V DC which is fed to SEPIC
CONVERTER. The output voltage of Sepic Converter is 1250 V DC which
will be the input to the inverter.
 In this model, the output of the Sepic converter is attached to the three
phase inverter. In conclusion, 810V and 5 A is obtained from the
inverter and given to induction motor. The induction motor runs at
800rpm with constant load torque .

12. Thank You
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REFERENCES
[1] E. Drury, T. Jenkin, D. Jordan, and R. Margolis, “Photovoltaic investment risk
and uncertainty for residential customers,” IEEE J. Photovoltaics, vol. 4, no. 1, pp.
278–284, Jan. 2014.
[2] E. Muljadi, “PV water pumping with a peak-power tracker using a simple six-
step square-wave inverter,” IEEE Trans. on Ind. Appl., vol. 33, no. 3, pp. 714-721,
May-Jun 1997.
[3] U. Sharma, S. Kumar and B. Singh, “Solar array fed water pumping system
using induction motor drive,” 1st IEEE Intern. Conf. on Power Electronics,
Intelligent Control and Energy Systems (ICPEICES), Delhi, 2016.
[4] T. Franklin, J. Cerqueira and E. de Santana, “Fuzzy and PI controllers in
pumping water system using photovoltaic electric generation,” IEEE Trans. Latin
America, vol. 12, no. 6, pp. 1049- 1054, Sept. 2014.
[5] R. Kumar and B. Singh, “BLDC Motor-Driven Solar PV Array-Fed Water
Pumping System Employing Zeta Converter,” IEEE Trans. Ind. Appl., vol. 52, no. 3,
pp. 2315-2322, May-June 2016.