Download or read book Resonant Micro Inverters for Single Phase Grid connected Photovoltaic Systems written by and published by . This book was released on 2015 with total page 466 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis addresses the design and implementation of micro-inverters for grid-connected single-phase photovoltaic (PV) systems. Despite the existing research issues concerning Micro-inverters, they have recently become very attractive due to their modularity and capability of independent maximum power point tracking (MPPT). The complexity in the design of micro-inverters stems from strict grid connection standards and high expectations of compactness, large amplification gain, high efficiency over a wide range of operating conditions and excellent output power quality. Moreover, since micro-inverters are exposed to a wide temperature range, the reliability and life-time of this technology are major problems. The main limiting factor in the life-time of micro-inverters is the use of large electrolytic capacitors for power decoupling. New circuit configuration and control structures to design a compact and efficient micro-inverter with high quality and robust output power injection capabilities are introduced in this thesis. In the proposed topology electrolytic capacitors are eliminated, removing the obstacles in achieving a durable and reliable design. To achieve a compact design, the proposed micro-inverter consists of a soft-switching high frequency resonant converter at the input and a hard-switching lower frequency inverter with a high order filter at the output. Small and large signal models of the resonant converter are obtained to design controllers. A new optimal controller and a design method are also proposed for the inverter that yield robust performance with a high quality output in the presence of grid voltage harmonics, impedance uncertainties and frequency changes. Furthermore, using a new nonlinear control strategy, a direct instantaneous power control method is proposed to achieve fast active and reactive power injections into the grid without using the measurement or calculation of active and reactive powers. A comprehensive steady state analysis is carried out to arrive at a final design that ensures optimum responses for all operating conditions. Moreover, for all proposed controllers, stability analysis is performed to guarantee sufficient stability margins accounting for uncertainties and nonlinearities. Analytical, simulation and experimental results are presented to verify the effectiveness of the proposed methods.

Download or read book A New Quasi Resonant DC link for Photovoltaic Micro inverters written by Anna Grishina and published by . This book was released on 2012 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: PV Inverters have the task of tracking the maximum power point (MPP), and regulating the solar energy generation to this optimal operation point. The second task is the conversion of direct current produced by the solar modules into alternating current compatible with the grid. A new inverter approach such as a single phase micro inverter is emerging aimed to overcome some of the challenges of centralized inverters. As a counterpart to the central inverter, a micro inverter is a small compact module attached directly to each solar panel. To provide for the constantly increasing demand for a small size, light weight and high efficiency micro inverter, soft switching power conversion technologies have been employed. The switching stress can be minimized by turning on/off each switch when the voltage across it or the current through it is zero at the switching transition. With the addition of auxiliary circuits such as auxiliary switches and LC resonant components the so called soft switching condition can be achieved for semiconductor devices. Four main purposes to investigate the soft switching technologies for single-phase micro-inverter are: (1) to improve overall efficiency by creating the favorable operating conditions for power devices using soft-switching techniques; (2) to shrink the reactive components by pushing the switching frequency to a higher range with decent efficiency. (3) to ensure soft switching does not exacerbate inverter performance, meaning all conventional PWM algorithms can be applied in order to meet IEEE standards. (4) to investigate which soft switching techniques offer the cheapest topology and control strategy as cost and simple control are crucial for low power inverter applications. An overview on the existing soft-switching inverter topologies for single phase inverter technology is summarized. A new quasi resonant DC link that allows for pulse- width- modulation (PWM) is presented in this thesis. The proposed quasi resonant DC link provides zero-voltage switching (ZVS) condition for the main devices by resonating the DC-link voltage to zero via three auxiliary switches and LC components. The operating principle and mode analysis are given. The simulation was carried out to verify the proposed soft switching technique. A 150W 120VAC single-phase prototype was built. The experimental results show that the soft switching for four main switches can be realized under different load conditions and the peak efficiency can reach 95.6%. The proposed quasi DC link can be applied to both single-phase and three-phase DC/AC micro inverter. In order to boost efficiency and increase power density it is important to evaluate the power loss mechanism in each stage of operation of the micro inverter. Using the datasheet parameters of the commercially available semiconductor switches, conduction and switching losses were estimated. This thesis presents a method to analyze power losses of the new resonant DC link inverter which alleviates topology optimization and MOSFET selection. An analytical, yet simple model for calculating the conduction and switching losses was developed. With this model a rough calculation of efficiency can be done, which helps to speed up the design process and to increase efficiency.

Download or read book Single Stage Grid Connected Micro Inverter for Photovoltaic Systems written by NIKHIL. SUKESH and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Advances in Grid Connected Photovoltaic Power Conversion Systems written by Yongheng Yang and published by Woodhead Publishing. This book was released on 2018-08-21 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Grid-Connected Photovoltaic Power Conversion Systems addresses the technological challenges of fluctuating and unreliable power supply in grid-connected photovoltaic (PV) systems to help students, researchers, and engineers work toward more PV installations in the grid to make society more sustainable and reliable while complying with grid regulations. The authors combine their extensive knowledge and experience in this book to address both the basics of the power electronic converter technology and the advances of such practical electric power conversion systems. This book includes extensive, step-by-step practical application examples to assist students and engineers to better understand the role of power electronics in modern PV applications and solve the practical issues in grid-connected PV systems. - Offers a step-by-step modeling approach to solving the practical issues and technological challenges in grid-connected PV systems - Provides practical application examples to assist the reader to better understand the role of power electronics in modern PV applications - Extends to the most modern technologies for grid-friendly PV systems

Download or read book Emerging Converter Topologies and Control for Grid Connected Photovoltaic Systems written by Dmitri Vinnikov and published by MDPI. This book was released on 2021-02-26 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt: Continuous cost reduction of photovoltaic (PV) systems and the rise of power auctions resulted in the establishment of PV power not only as a green energy source but also as a cost-effective solution to the electricity generation market. Various commercial solutions for grid-connected PV systems are available at any power level, ranging from multi-megawatt utility-scale solar farms to sub-kilowatt residential PV installations. Compared to utility-scale systems, the feasibility of small-scale residential PV installations is still limited by existing technologies that have not yet properly address issues like operation in weak grids, opaque and partial shading, etc. New market drivers such as warranty improvement to match the PV module lifespan, operation voltage range extension for application flexibility, and embedded energy storage for load shifting have again put small-scale PV systems in the spotlight. This Special Issue collects the latest developments in the field of power electronic converter topologies, control, design, and optimization for better energy yield, power conversion efficiency, reliability, and longer lifetime of the small-scale PV systems. This Special Issue will serve as a reference and update for academics, researchers, and practicing engineers to inspire new research and developments that pave the way for next-generation PV systems for residential and small commercial applications.

Download or read book Adaptive Proportional Resonant Controller for Single phase Grid connected PV Inverter Based on Grid Impedance Estimation Technique written by Hamza O. Khalfalla and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Design and Control of Grid Connected Photovoltaic System written by Ahteshamul Haque and published by CRC Press. This book was released on 2023-04-28 with total page 243 pages. Available in PDF, EPUB and Kindle. Book excerpt: The current model for electricity generation and distribution is dominated by centralized power plants which are typically associated with combustion (coal, oil, and natural gas) or nuclear generation units. These power models require distribution from the center to outlying consumers and have many disadvantages concerning the electric utilities, transmission and distribution, and greenhouse gas emissions. This resulted in the modelling and development of cleaner renewable power generation with alternative sources such as photovoltaic (PV), wind, and other sources. Further, due to matured PV technology, constant drop-in installation cost, greenhouse emissions reductions, energy efficiency, reduced transmission and distribution investments, minimization of electric losses, and network support, the development of PV systems is proliferating. In view of this development, this book provides an idea for setting up the PV plant from initial study of the site to plan sizing. Once the first planning is covered, the book focuses on the modeling aspects of power electronics converter and control elements associated with it keeping the operating standards specified for the development of distributed generation systems in check. This book will be useful for industrial professionals and researchers who are working toward modeling of PV plants, and their control in grid connected operation. All the necessary information related to these fields is available in the book.

Download or read book Intelligent Technologies and Applications written by Filippo Sanfilippo and published by Springer Nature. This book was released on 2022-07-22 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the 4th International Conference on Intelligent Technologies and Applications, INTAP 2021, held in Grimstad, Norway, October 11–13, 2021. The 33 full papers included in this book were carefully reviewed and selected from 243 submissions. They were organized in topical sections as follows: Intelligence, Decision support systems, IoT; Robotics; ML and AI for Intelligent Health, Applications of intelligent technologies in Emergency Management; Smart Electrical Energy Systems, AI and ML in Security; ML and AI for sensing technologies, Social Media Analytics; ML in energy sectors and materials; and Miscellaneous.

Download or read book Advanced Intelligent Systems for Sustainable Development AI2SD 2019 written by Mostafa Ezziyyani and published by Springer Nature. This book was released on 2020-01-03 with total page 331 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book summarizes the latest research on advanced intelligent systems in the fields of energy and electrical engineering, presented at the second edition of the International Conference on Advanced Intelligent Systems for Sustainable Development (AI2SD’2019), held in Marrakech from 8 to 11 July 2019, Morocco. This book is intended for researchers, professionals and anyone interested in the development of advanced intelligent systems in the electrical engineering sector. The solutions featured focus on three main areas: motion control in complex electromechanical systems, including sensorless control; fault diagnosis and fault-tolerant control of electric drives; and new control algorithms for power electronics converters. In addition, the book includes a range of research using new technologies and advanced approaches. Offering a platform for researchers in the field of energy to share their work related to the problem of management and optimization of energy, which is a major current concern, the book mainly focuses on areas that go hand in hand with the Industrial Revolution 4.0, such as solar energy computing systems, smart grids, hydroelectric power computing systems, thermal and recycling computing systems, eco-design intelligent computing systems, renewable energy for IT equipment, modeling green technology, and renewable energy systems in smart cities. The authors of each chapter report the state of the art in the topics addressed and the results of their own research, laboratory experiments, and successful applications in order to share the concept of advanced intelligent systems and appropriate tools and techniques for modeling, storage management, as well as decision support in the field of electrical engineering. Further, the book discusses a number of future trends and the potential for linking control theory, power electronics, artificial neural networks, embedded controllers and signal processing.

Download or read book Control Techniques for LCL Type Grid Connected Inverters written by Xinbo Ruan and published by Springer. This book was released on 2017-07-26 with total page 319 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on control techniques for LCL-type grid-connected inverters to improve system stability, control performance and suppression ability of grid current harmonics. Combining a detailed theoretical analysis with design examples and experimental validations, the book offers an essential reference guide for graduate students and researchers in power electronics, as well as engineers engaged in developing grid-connected inverters for renewable energy generation systems.

Download or read book Distributed Energy Resources in Microgrids written by Rajeev Kumar Chauhan and published by Academic Press. This book was released on 2019-08-17 with total page 555 pages. Available in PDF, EPUB and Kindle. Book excerpt: Distributed Energy Resources in Microgrids: Integration, Challenges and Optimization unifies classically unconnected aspects of microgrids by considering them alongside economic analysis and stability testing. In addition, the book presents well-founded mathematical analyses on how to technically and economically optimize microgrids via distributed energy resource integration. Researchers and engineers in the power and energy sector will find this information useful for combined scientific and economical approaches to microgrid integration. Specific sections cover microgrid performance, including key technical elements, such as control design, stability analysis, power quality, reliability and resiliency in microgrid operation. - Addresses the challenges related to the integration of renewable energy resources - Includes examples of control algorithms adopted during integration - Presents detailed methods of optimization to enhance successful integration

Download or read book Handbook Of Renewable Energy Technology Systems written by Ramesh C Bansal and published by World Scientific. This book was released on 2021-08-13 with total page 653 pages. Available in PDF, EPUB and Kindle. Book excerpt: Worldwide, the effects of global warming, pollution due to power generation from fossil fuels, and its depletion have led to the rapid deployment of renewable energy-based power generation. The leading renewable technologies are wind and photovoltaic (PV) systems. The incorporation of this generation of technologies has led to the development of a broad array of new methods and tools to integrate renewable generation into power system networks.The Handbook of Renewable Energy Technology & Systems comprises 22 chapters, arranged into four sections, which present a comprehensive analysis of various renewable energy-based distributed generation (DG) technologies. Aspects of renewable energy covered include wind and photovoltaic power systems and technology, micro-grids, power electronic applications, power quality, and the protection of renewable distributed generation.

Download or read book International Conference on Electronics and Electrical Engineering written by and published by DEStech Publications, Inc. This book was released on 2014-07-24 with total page 688 pages. Available in PDF, EPUB and Kindle. Book excerpt: All papers including in this proceedings had undergone the strict peer-review by the experts before they are accepted for publications. This proceeding covers the subjects of analog circuits and digital circuits, assembly and packaging, biomedical circuits, computer architecture, computer engineering, control engineering, electric power system and automation, energy and power systems, instrumentation engineering, signal processing and other related areas. We hope this proceeding will contribute in stimulating debate and research among scholars, researchers and academicians. CEEE 2014 is to provide a forum for researchers, academicians, engineers, and government officials from all over the world to involved in the general areas of Electronics and Electrical Engineering to disseminate their latest research results and exchange views on the future research directions of these fields.This conference provides opportunities for the participants to exchange new ideas and application experiences face to face.

Download or read book Power Electronic Converters for Microgrids written by Suleiman M. Sharkh and published by John Wiley & Sons. This book was released on 2014-04-14 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt: As concerns about climate change, energy prices, and energy security loom, regulatory and research communities have shown growing interest in alternative energy sources and their integration into distributed energy systems. However, many of the candidate microgeneration and associated storage systems cannot be readily interfaced to the 50/60 Hz grid. In Power Electronic Converters for Microgrids, Sharkh and Abu-Sara introduce the basics and practical concerns of analyzing and designing such micro-generation grid interface systems. Readers will become familiar with methods for stably feeding the larger grid, importing from the grid to charge on-site storage, disconnecting from the grid in case of grid failure, as well as connect multiple microgrids while sharing their loads appropriately. Sharkh and Abu-Sara introduce not only the larger context of the technology, but also present potential future applications, along with detailed case studies and tutorials to help the reader effectively engineer microgrid systems.

Download or read book Electronic Systems and Intelligent Computing written by Pradeep Kumar Mallick and published by Springer Nature. This book was released on 2020-09-22 with total page 1126 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents selected, high-quality research papers from the International Conference on Electronic Systems and Intelligent Computing (ESIC 2020), held at NIT Yupia, Arunachal Pradesh, India, on 2 – 4 March 2020. Discussing the latest challenges and solutions in the field of smart computing, cyber-physical systems and intelligent technologies, it includes papers based on original theoretical, practical and experimental simulations, developments, applications, measurements, and testing. The applications and solutions featured provide valuable reference material for future product development.

Download or read book Applied Computer Sciences in Engineering written by Juan Carlos Figueroa-García and published by Springer. This book was released on 2017-01-02 with total page 417 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the Third Workshop on Engineering Applications, WEA 2016, held in Bogotá, Colombia, in September 2016. The 35 revised full papers presented were carefully reviewed and selected from 128 submissions. The papers are organized in topical sections on computer science; computational intelligence; simulation systems; fuzzy sets and systems; power systems; miscellaneous applications.

Download or read book Power Electronic Converters for Solar Photovoltaic Systems written by L. Ashok Kumar and published by Academic Press. This book was released on 2020-11-01 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt: Power Electronic Converters for Solar Photovoltaic Systems provides design and implementation procedures for power electronic converters and advanced controllers to improve standalone and grid environment solar photovoltaics performance. Sections cover performance and improvement of solar photovoltaics under various conditions with the aid of intelligent controllers, allowing readers to better understand the nuances of power electronic converters for renewable energy systems. With algorithm development and real-time implementation procedures, this reference is useful for those interested in power electronics for performance improvement in distributed energy resources, design of advanced controllers, and measurement of critical parameters surrounding renewable energy systems. By providing a complete solution for performance improvement in solar PV with novel control techniques, this book will appeal to researchers and engineers working in power electronic converters, renewable energy, and power quality. - Includes simulation studies and photovoltaic performance analysis - Uses case studies as a reference for design and research - Covers different varieties of power converters, from fundamentals to implementation