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A Single Phase Standalone Residential Photovoltaic Energy Management System / MANESH PATEL

Swansea University Author: MANESH PATEL

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DOI (Published version): 10.23889/SUThesis.70854

Abstract

A Single Phase Standalone Photovoltaic Energy Management System (SPSAPVEMS) is presented. This SPSAPVEMS is comprised of an interleaved battery charging sub-system, and an interleaved switched capacitor inverter sub-system and has been developed to effectively control the Photovoltaic (PV) array, ba...

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Published: Swansea 2025
Institution: Swansea University
Degree level: Doctoral
Degree name: Ph.D
Supervisor: Z, Zhou
URI: https://cronfa.swan.ac.uk/Record/cronfa70854
first_indexed 2025-11-06T15:48:03Z
last_indexed 2025-11-07T07:35:32Z
id cronfa70854
recordtype RisThesis
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A detailed literature review is presented that summarises the current topologies of the various Energy Management System (EMS) subsystems and identifies areas for improvement as a focus point of this study. One of the core sub-systems of the SPSAPVEMS is the inverter, an interleaved switched capacitor single-phase inverter for a Standalone PV System with Battery Storage is proposed with a novel control strategy based on the combination of Perturb &amp;Observation (P&amp;O) Maximum Power Point Tracking (MPPT) by phase shifted unipolar sinusoidal Pulse Width Modulation (PWM) with an Route Mean Squared (RMS) feedback loop to modulate the reference signal. The proposed modified interleaved inverter in this configuration shows improved harmonic performance compared with other existing methods, the simulation of the proposed inverter system recorded a Total Harmonic Distortion (THD) of 1.81% for the in-phase output current and voltage. This can be attributed to the interleaving of the switched capacitors that reduces the output ripple of the circuit. A second sub-system of the SPSAPVEMS is the single-phase bidirectional Direct Current (DC)/DC battery charger with a combined P&amp;O MPPT and current control strategy is described and compared with an analysis of the existing battery charging techniques published in the industry.The conclusion of this study found a faster response time and reduced component count compared to a typical MPPT controlled boost converter in parallel to a voltage-controlled battery charger or other multiport solutions. A MATLAB/Simulink based simulation circuit was developed and used to validate the performance of the SPSAPVEMS. The system has been designed to respond to varying weather and load conditions as the battery supplements power to the home load when the PV output is impacted by variable conditions. In practice, a residential PV system will be exposed to changeable irradiance and temperature. MATLAB/Simulink package has been used to simulate and analyse the system behaviour.The results conclude that after reaching steady state, the system is responsive to the variable conditions.The combined MPPT, Current Control and RMS feedback voltage control methodologies allow power flow to be distributed across the load with minimal losses from multiple conversions or a high volume of components.</abstract><type>E-Thesis</type><journal/><volume/><journalNumber/><paginationStart/><paginationEnd/><publisher/><placeOfPublication>Swansea</placeOfPublication><isbnPrint/><isbnElectronic/><issnPrint/><issnElectronic/><keywords>PV, Standalone PV, Single-Phase, Battery Charger, Bidirectional, Buck-Boost, P&amp;amp;O, MPPT, Interleaved, Switched Capacitor, H-Bridge Inverter, RMS Feedback, Phase-Shifted, PWM, Home Load</keywords><publishedDay>8</publishedDay><publishedMonth>9</publishedMonth><publishedYear>2025</publishedYear><publishedDate>2025-09-08</publishedDate><doi>10.23889/SUThesis.70854</doi><url/><notes/><college>COLLEGE NANME</college><CollegeCode>COLLEGE CODE</CollegeCode><institution>Swansea University</institution><supervisor>Z, Zhou</supervisor><degreelevel>Doctoral</degreelevel><degreename>Ph.D</degreename><apcterm/><funders/><projectreference/><lastEdited>2025-11-06T15:52:16.4179871</lastEdited><Created>2025-11-06T15:43:44.9677301</Created><path><level id="1">Faculty of Science and Engineering</level><level id="2">School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Electronic and Electrical Engineering</level></path><authors><author><firstname>MANESH</firstname><surname>PATEL</surname><order>1</order></author></authors><documents><document><filename>70854__35577__35afd1033b7b435bb39f7c3edee1bd91.pdf</filename><originalFilename>2025_Patel_M.final.70854.pdf</originalFilename><uploaded>2025-11-06T15:47:22.7608356</uploaded><type>Output</type><contentLength>2889272</contentLength><contentType>application/pdf</contentType><version>E-Thesis &#x2013; open access</version><cronfaStatus>true</cronfaStatus><documentNotes>Copyright: The author, Manesh Dilip Patel, 2025</documentNotes><copyrightCorrect>true</copyrightCorrect><language>eng</language></document></documents><OutputDurs/></rfc1807>
spelling 2025-11-06T15:52:16.4179871 v2 70854 2025-11-06 A Single Phase Standalone Residential Photovoltaic Energy Management System 95c6ce9d22fe01e8dc184ecb0e0c5cb0 MANESH PATEL MANESH PATEL true false 2025-11-06 A Single Phase Standalone Photovoltaic Energy Management System (SPSAPVEMS) is presented. This SPSAPVEMS is comprised of an interleaved battery charging sub-system, and an interleaved switched capacitor inverter sub-system and has been developed to effectively control the Photovoltaic (PV) array, battery, and load voltage in a standalone energy management system for residential applications in off-grid solutions. A detailed literature review is presented that summarises the current topologies of the various Energy Management System (EMS) subsystems and identifies areas for improvement as a focus point of this study. One of the core sub-systems of the SPSAPVEMS is the inverter, an interleaved switched capacitor single-phase inverter for a Standalone PV System with Battery Storage is proposed with a novel control strategy based on the combination of Perturb &Observation (P&O) Maximum Power Point Tracking (MPPT) by phase shifted unipolar sinusoidal Pulse Width Modulation (PWM) with an Route Mean Squared (RMS) feedback loop to modulate the reference signal. The proposed modified interleaved inverter in this configuration shows improved harmonic performance compared with other existing methods, the simulation of the proposed inverter system recorded a Total Harmonic Distortion (THD) of 1.81% for the in-phase output current and voltage. This can be attributed to the interleaving of the switched capacitors that reduces the output ripple of the circuit. A second sub-system of the SPSAPVEMS is the single-phase bidirectional Direct Current (DC)/DC battery charger with a combined P&O MPPT and current control strategy is described and compared with an analysis of the existing battery charging techniques published in the industry.The conclusion of this study found a faster response time and reduced component count compared to a typical MPPT controlled boost converter in parallel to a voltage-controlled battery charger or other multiport solutions. A MATLAB/Simulink based simulation circuit was developed and used to validate the performance of the SPSAPVEMS. The system has been designed to respond to varying weather and load conditions as the battery supplements power to the home load when the PV output is impacted by variable conditions. In practice, a residential PV system will be exposed to changeable irradiance and temperature. MATLAB/Simulink package has been used to simulate and analyse the system behaviour.The results conclude that after reaching steady state, the system is responsive to the variable conditions.The combined MPPT, Current Control and RMS feedback voltage control methodologies allow power flow to be distributed across the load with minimal losses from multiple conversions or a high volume of components. E-Thesis Swansea PV, Standalone PV, Single-Phase, Battery Charger, Bidirectional, Buck-Boost, P&amp;O, MPPT, Interleaved, Switched Capacitor, H-Bridge Inverter, RMS Feedback, Phase-Shifted, PWM, Home Load 8 9 2025 2025-09-08 10.23889/SUThesis.70854 COLLEGE NANME COLLEGE CODE Swansea University Z, Zhou Doctoral Ph.D 2025-11-06T15:52:16.4179871 2025-11-06T15:43:44.9677301 Faculty of Science and Engineering School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Electronic and Electrical Engineering MANESH PATEL 1 70854__35577__35afd1033b7b435bb39f7c3edee1bd91.pdf 2025_Patel_M.final.70854.pdf 2025-11-06T15:47:22.7608356 Output 2889272 application/pdf E-Thesis – open access true Copyright: The author, Manesh Dilip Patel, 2025 true eng
title A Single Phase Standalone Residential Photovoltaic Energy Management System
spellingShingle A Single Phase Standalone Residential Photovoltaic Energy Management System
MANESH PATEL
title_short A Single Phase Standalone Residential Photovoltaic Energy Management System
title_full A Single Phase Standalone Residential Photovoltaic Energy Management System
title_fullStr A Single Phase Standalone Residential Photovoltaic Energy Management System
title_full_unstemmed A Single Phase Standalone Residential Photovoltaic Energy Management System
title_sort A Single Phase Standalone Residential Photovoltaic Energy Management System
author_id_str_mv 95c6ce9d22fe01e8dc184ecb0e0c5cb0
author_id_fullname_str_mv 95c6ce9d22fe01e8dc184ecb0e0c5cb0_***_MANESH PATEL
author MANESH PATEL
author2 MANESH PATEL
format E-Thesis
publishDate 2025
institution Swansea University
doi_str_mv 10.23889/SUThesis.70854
college_str Faculty of Science and Engineering
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hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Electronic and Electrical Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Electronic and Electrical Engineering
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description A Single Phase Standalone Photovoltaic Energy Management System (SPSAPVEMS) is presented. This SPSAPVEMS is comprised of an interleaved battery charging sub-system, and an interleaved switched capacitor inverter sub-system and has been developed to effectively control the Photovoltaic (PV) array, battery, and load voltage in a standalone energy management system for residential applications in off-grid solutions. A detailed literature review is presented that summarises the current topologies of the various Energy Management System (EMS) subsystems and identifies areas for improvement as a focus point of this study. One of the core sub-systems of the SPSAPVEMS is the inverter, an interleaved switched capacitor single-phase inverter for a Standalone PV System with Battery Storage is proposed with a novel control strategy based on the combination of Perturb &Observation (P&O) Maximum Power Point Tracking (MPPT) by phase shifted unipolar sinusoidal Pulse Width Modulation (PWM) with an Route Mean Squared (RMS) feedback loop to modulate the reference signal. The proposed modified interleaved inverter in this configuration shows improved harmonic performance compared with other existing methods, the simulation of the proposed inverter system recorded a Total Harmonic Distortion (THD) of 1.81% for the in-phase output current and voltage. This can be attributed to the interleaving of the switched capacitors that reduces the output ripple of the circuit. A second sub-system of the SPSAPVEMS is the single-phase bidirectional Direct Current (DC)/DC battery charger with a combined P&O MPPT and current control strategy is described and compared with an analysis of the existing battery charging techniques published in the industry.The conclusion of this study found a faster response time and reduced component count compared to a typical MPPT controlled boost converter in parallel to a voltage-controlled battery charger or other multiport solutions. A MATLAB/Simulink based simulation circuit was developed and used to validate the performance of the SPSAPVEMS. The system has been designed to respond to varying weather and load conditions as the battery supplements power to the home load when the PV output is impacted by variable conditions. In practice, a residential PV system will be exposed to changeable irradiance and temperature. MATLAB/Simulink package has been used to simulate and analyse the system behaviour.The results conclude that after reaching steady state, the system is responsive to the variable conditions.The combined MPPT, Current Control and RMS feedback voltage control methodologies allow power flow to be distributed across the load with minimal losses from multiple conversions or a high volume of components.
published_date 2025-09-08T05:32:33Z
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score 11.09611

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