Махмуд Ахмед Рефаат Абуэльфадл Разработка и исследование систем суммирования тока панелей солнечных батарей

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Махмуд Ахмед Рефаат Абуэльфадл Разработка и исследование систем суммирования тока панелей солнечных батарей
ОГЛАВЛЕНИЕ ДИССЕРТАЦИИ
кандидат наук Махмуд Ахмед Рефаат Абуэльфадл
TABLE OF CONTENTS

TABLE OF CONTENTS

INTRODUCTION

1 PHOTOVOLTAIC POWER SYSTEMS CHALLENGES

1.1 Global Trends in Renewable Energy

1.2 Future vision of Renewable Energy in Egypt

1.3 Centralized Inverter PV Systems Challenges

1.4 Dissertation Outline

Chapter Summary

2 PHOTOVOLTAIC POWER SYSTEMS AND CONTROL

2.1 Photovoltaic Generator

2.2 Modeling of PV Generator

2.2.1 PV cell Model

2.2.2 PV Module and Array Model

2.3 Classification of PV Systems

2.4 Power Conditioning Unit (PCU) Topologies

2.4.1 Stages of Power Processing

2.4.2 Power Decoupling

2.4.3 Galvanic Isolation

2.5 Maximum Energy production from PV Generators

2.5.1 PV Cooling Systems

2.5.2 Sun Trackers

2.5.3 Maximum Power Point (MPP) Trackers

2.6 Voltage Source Inverter (VSI)

2.7 Sinusoidal Pulse-Width Modulation (SPWM)

2.8 Specifications and Standards for Grid-Connected PV Systems

Chapter Summary

3 CURRENT COLLECTOR OPTIMIZER TOPOLOGY TO MITIGATE THE EFFECT OF PARTIAL SHADING

3.1 Partial Shading Problem Overview

3.2 Partial Shading Loss Reduction

3.2.1 AI-Based MPPT techniques

3.2.2 Circuit-Based Topologies

3.2.2.1 Configuration and Reconfiguration of PV Array

3.2.2.2 Distributed Architecture

3.2.2.3 Multilevel Inverter (MLI) Topology

3.2.2.4 Differential Power Processing (DPP) Converters and Equalizers

3.3 Current Collector Optimizer (CCO) Topology

3.4 CCO Topology Versus SP Topology under Partial Shading Conditions... 56 Chapter Summary

4 CURRENT COLLECTOR OPTIMIZER TOPOLOGY TO ENHANCE ENERGY HARVEST FROM NON-UNIFORM AGED PV MODULES

4.1 Non-Uniform Aging Problem Overview

4.2 Performance of Non-Uniform Aged SP Array Topology

4.3 Performance of Non-Uniform Aged PV Array for CCO Topology

4.4 Discussions

4.5 Reconfiguration Algorithm for CCO Topology

Chapter Summary

5 GRID-CONNECTED CCO TOPOLOGY

5.1 System Description

5.2 Park Transformation

5.3 Grid Synchronization Using Phase-Locked Loop

5.4 Modeling of Grid-Connected VSI

5.5 Control of VSI

5.5.1 The Inner Current Control Loops

5.5.2 The Outer DC-link Voltage Control Loop

5.6 Controller Design

5.6.1 Current Controller

5.6.2 DC-link Voltage Controller

5.7 AC Grid Model

5.7.1 Grid Strength

5.7.2 Grid Impedance Angle

5.8 Simulations and Discussions

5.8.1 Simulation Under Standard Test Condition (STC)

5.8.2 Simulation Under Partial Shading Condition (PSC)

Chapter Summary

CONCLUSIONS AND FUTURE WORK

CONCLUSIONS

FUTURE WORK

REFERENCES

LIST OF SYMBOLS

LIST OF ABBREVIATIONS

APPENDIX A: DESIGN OF LCL FILTER