Download or read book Advanced Single phase PV Inverters written by Qingyun Huang (Ph. D.) and published by . This book was released on 2018 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: The high-efficiency and high-density single phase photovoltaic (PV) inverters are drawing more and more interests for the residential PV systems. This dissertation focuses on the innovations, designs, analysis, hardware implementations and testing of the advanced single-phase PV inverters for residential applications. The most popular single-phase PV inverter products for residential application are the centralized transformerless string inverters. The common mode (CM) leakage current is the major issue for the transformerless PV inverter. Various topologies are discussed by the industry and the academia. Due the Google “Little Box Challenge”, several teams including the winner of the finalist reported a new transformerless PV inverter topology: the symmetrical dual-Buck H-bridge GaN inverter. With the zero-voltage-switching (ZVS) technique and the GaN devices, this topology can achieve high efficiency and high power density. However, the current control with cycle-by-cycle ZVS for this inverter is a big challenge. In this dissertation, a variable frequency average current mode control with a variable frequency pulse-width-modulation (PWM) is proposed for this inverter topology. The proposed current control is highly immune to the noises. The reliability for ZVS of this inverter is significantly improved. In addition, the cost and the complexity for the controller is also reduced. The proposed variable frequency PWM and control are fundamental to all PWM synchronous converters. They can be applied to any synchronous half-bridge type QSW ZVS converters, such as other inverter topologies, bridgeless PFC rectifiers or DC/DC converters which consist of the synchronous half-bridges. Besides, the proposed PWM and control have the potential to be implemented with analog circuits. The centralized transformerless string PV inverter topologies have low cost and high efficiency. However, the string inverters not only suffer the high voltage DC arc issue, but also cannot achieve the individual maximum power point tracking (MPPT). The other commercial products, such as the DC optimizers and the microinverters, also have some major drawbacks. The DC optimizers also suffer the high voltage DC arc issue. The microinverters suffer the issues of low efficiency and high cost. The cascaded H-bridge multilevel inverter can achieve the high efficiency, the high density, the low cost and the elimination of the high voltage DC arc issue. This inverter is a great candidate for the next generation of the residential PV inverter products. However, the individual DC link voltage control is a big challenge. In this dissertation, an innovative feedforward proportional carrier-based pulse-width-modulation (PWM) is proposed. With this PWM, only one voltage loop controller is needed in the outer voltage loop. The individual DC link voltage regulation can be realized by the proposed PWM and the single voltage loop controller. The proposed PWM is a fundamental technology for multilevel converters. It can be applied to other multilevel converters. A 99% efficient cascaded H-bridge PV inverter prototype is demonstrated with the proposed feedforward PWM. The cascaded H-bridge inverter has another drawback. It has the minimum requirement for the count of the PV panels since this inverter is a step-down converter. It significantly reduces the flexibility of the count of the PV panels. Therefore, a new PV inverter topology, the dual-mode cascaded Buck-Boost multilevel inverter, is proposed to overcome this drawback. This inverter not only conserves all the advantages of the cascaded H-bridge inverter, but also significantly improves the flexibility of the count of the PV panels. With the emerging 600V GaN devices and the dual-mode operation, the switching loss of the AC switches is significantly reduced. Finally, based on this topology, a 2kW multiport PV inverter designed in this dissertation demonstrates the superior performance, including higher efficiency, higher density and lower cost, compared with the state-of-art 2kW microinverter system

Download or read book Smart Solar PV Inverters with Advanced Grid Support Functionalities written by Rajiv K. Varma and published by John Wiley & Sons. This book was released on 2021-12-01 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt: Learn the fundamentals of smart photovoltaic (PV) inverter technology with this insightful one-stop resource Smart Solar PV Inverters with Advanced Grid Support Functionalities presents a comprehensive coverage of smart PV inverter technologies in alleviating grid integration challenges of solar PV systems and for additionally enhancing grid reliability. Accomplished author Rajiv Varma systematically integrates information from the wealth of knowledge on smart inverters available from EPRI, NREL, NERC, SIWG, EU-PVSEC, CIGRE, IEEE publications; and utility experiences worldwide. The book further presents a novel, author-developed and patented smart inverter technology for utilizing solar PV plants both in the night and day as a Flexible AC Transmission System (FACTS) Controller STATCOM, named PV-STATCOM. Replete with case studies, this book includes over 600 references and 280 illustrations. Smart Solar PV Inverters with Advanced Grid Support Functionalities’ features include: Concepts of active and reactive power control; description of different smart inverter functions, and modeling of smart PV inverter systems Distribution system applications of PV-STATCOM for dynamic voltage control, enhancing connectivity of solar PV and wind farms, and stabilization of critical motors Transmission system applications of PV-STATCOM for improving power transfer capacity, power oscillation damping (POD), suppression of subsynchronous oscillations, mitigation of fault induced delayed voltage recovery (FIDVR), and fast frequency response (FFR) with POD Hosting capacity for solar PV systems, its enhancement through effective settings of different smart inverter functions; and control coordination of smart PV inverters Emerging smart inverter grid support functions and their pioneering field demonstrations worldwide, including Canada, USA, UK, Chile, China, and India. Perfect for system planners and system operators, utility engineers, inverter manufacturers and solar farm developers, this book will prove to be an important resource for academics and graduate students involved in electrical power and renewable energy systems.

Download or read book Smart Solar PV Inverters with Advanced Grid Support Functionalities written by Rajiv K. Varma and published by John Wiley & Sons. This book was released on 2021-12-21 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt: Learn the fundamentals of smart photovoltaic (PV) inverter technology with this insightful one-stop resource Smart Solar PV Inverters with Advanced Grid Support Functionalities presents a comprehensive coverage of smart PV inverter technologies in alleviating grid integration challenges of solar PV systems and for additionally enhancing grid reliability. Accomplished author Rajiv Varma systematically integrates information from the wealth of knowledge on smart inverters available from EPRI, NREL, NERC, SIWG, EU-PVSEC, CIGRE, IEEE publications; and utility experiences worldwide. The book further presents a novel, author-developed and patented smart inverter technology for utilizing solar PV plants both in the night and day as a Flexible AC Transmission System (FACTS) Controller STATCOM, named PV-STATCOM. Replete with case studies, this book includes over 600 references and 280 illustrations. Smart Solar PV Inverters with Advanced Grid Support Functionalities’ features include: Concepts of active and reactive power control; description of different smart inverter functions, and modeling of smart PV inverter systems Distribution system applications of PV-STATCOM for dynamic voltage control, enhancing connectivity of solar PV and wind farms, and stabilization of critical motors Transmission system applications of PV-STATCOM for improving power transfer capacity, power oscillation damping (POD), suppression of subsynchronous oscillations, mitigation of fault induced delayed voltage recovery (FIDVR), and fast frequency response (FFR) with POD Hosting capacity for solar PV systems, its enhancement through effective settings of different smart inverter functions; and control coordination of smart PV inverters Emerging smart inverter grid support functions and their pioneering field demonstrations worldwide, including Canada, USA, UK, Chile, China, and India. Perfect for system planners and system operators, utility engineers, inverter manufacturers and solar farm developers, this book will prove to be an important resource for academics and graduate students involved in electrical power and renewable energy systems.

Download or read book Advanced DC AC Inverters written by Fang Lin Luo and published by CRC Press. This book was released on 2017-07-28 with total page 325 pages. Available in PDF, EPUB and Kindle. Book excerpt: DC/AC inversion technology is of vital importance for industrial applications, including electrical vehicles and renewable energy systems, which require a large number of inverters. In recent years, inversion technology has developed rapidly, with new topologies improving the power factor and increasing power efficiency. Proposing many novel approaches, Advanced DC/AC Inverters: Applications in Renewable Energy describes advanced DC/AC inverters that can be used for renewable energy systems. The book introduces more than 100 topologies of advanced inverters originally developed by the authors, including more than 50 new circuits. It also discusses recently published cutting-edge topologies. Novel PWM and Multilevel Inverters The book first covers traditional pulse-width-modulation (PWM) inverters before moving on to new quasi-impedance source inverters and soft-switching PWM inverters. It then examines multilevel DC/AC inverters, which have overcome the drawbacks of PWM inverters and provide greater scope for industrial applications. The authors propose four novel multilevel inverters: laddered multilevel inverters, super-lift modulated inverters, switched-capacitor inverters, and switched-inductor inverters. With simple structures and fewer components, these inverters are well suited for renewable energy systems. Get the Best Switching Angles for Any Multilevel Inverter A key topic for multilevel inverters is the need to manage the switching angles to obtain the lowest total harmonic distortion (THD). The authors outline four methods for finding the best switching angles and use simulation waveforms to verify the design. The optimum switching angles for multilevel DC/AC inverters are also listed in tables for quick reference. Application Examples of DC/AC Inverters in Renewable Energy Systems Highlighting the importance of inverters in improving energy saving and power-supply quality, the final chapter of the book supplies design examples for applications in wind turbine and solar panel energy systems. Written by pioneers in advanced conversion and inversion technology, this book guides readers in designing more effective DC/AC inverters for use in renewable energy systems.

Download or read book Advanced Power Electronics Converters for Future Renewable Energy Systems written by Neeraj Priyadarshi and published by CRC Press. This book was released on 2023-03-31 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book narrates an assessment of numerous advanced power converters employed on primitive phase to enhance the efficiency of power translation pertaining to renewable energy systems. It presents the mathematical modelling, analysis, and control of recent power converters topologies, namely, AC/DC, DC/DC, and DC/AC converters. Numerous advanced DC-DC Converters, namely, multi-input DC-DC Converter, Cuk, SEPIC, Zeta and so forth have been assessed mathematically using state space analysis applied with an aim to enhance power efficiency of renewable energy systems. The book: Explains various power electronics converters for different types of renewable energy sources Provides a review of the major power conversion topologies in one book Focuses on experimental analysis rather than simulation work Recommends usage of MATLAB, PSCAD, and PSIM simulation software for detailed analysis Includes DC-DC converters with reasonable peculiar power rating This book is aimed at researchers, graduate students in electric power engineering, power and industrial electronics, and renewable energy.

Download or read book 2019 IEEE 46th Photovoltaic Specialists Conference PVSC written by 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 Advanced and Intelligent Control in Power Electronics and Drives written by Teresa Orłowska-Kowalska and published by Springer. This book was released on 2014-01-08 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt: Power electronics and variable frequency drives are continuously developing multidisciplinary fields in electrical engineering and it is practically not possible to write a book covering the entire area by one individual specialist. Especially by taking account the recent fast development in the neighboring fields like control theory, computational intelligence and signal processing, which all strongly influence new solutions in control of power electronics and drives. Therefore, this book is written by individual key specialist working on the area of modern advanced control methods which penetrates current implementation of power converters and drives. Although some of the presented methods are still not adopted by industry, they create new solutions with high further research and application potential. The material of the book is presented in the following three parts: Part I: Advanced Power Electronic Control in Renewable Energy Sources (Chapters 1-4), Part II: Predictive Control of Power Converters and Drives (5-7), Part III: Neurocontrol and Nonlinear Control of Power Converters and Drives (8-11). The book is intended for engineers, researchers and students in the field of power electronics and drives who are interested in the use of advanced control methods and also for specialists from the control theory area who like to explore new area of applications.

Download or read book Control of Power Inverters in Renewable Energy and Smart Grid Integration written by Qing-Chang Zhong and published by John Wiley & Sons. This book was released on 2012-11-16 with total page 407 pages. Available in PDF, EPUB and Kindle. Book excerpt: Integrating renewable energy and other distributed energy sources into smart grids, often via power inverters, is arguably the largest “new frontier” for smart grid advancements. Inverters should be controlled properly so that their integration does not jeopardize the stability and performance of power systems and a solid technical backbone is formed to facilitate other functions and services of smart grids. This unique reference offers systematic treatment of important control problems in power inverters, and different general converter theories. Starting at a basic level, it presents conventional power conversion methodologies and then ‘non-conventional’ methods, with a highly accessible summary of the latest developments in power inverters as well as insight into the grid connection of renewable power. Consisting of four parts – Power Quality Control, Neutral Line Provision, Power Flow Control, and Synchronisation – this book fully demonstrates the integration of control and power electronics. Key features include: the fundamentals of power processing and hardware design innovative control strategies to systematically treat the control of power inverters extensive experimental results for most of the control strategies presented the pioneering work on “synchronverters” which has gained IET Highly Commended Innovation Award Engineers working on inverter design and those at power system utilities can learn how advanced control strategies could improve system performance and work in practice. The book is a useful reference for researchers who are interested in the area of control engineering, power electronics, renewable energy and distributed generation, smart grids, flexible AC transmission systems, and power systems for more-electric aircraft and all-electric ships. This is also a handy text for graduate students and university professors in the areas of electrical power engineering, advanced control engineering, power electronics, renewable energy and smart grid integration.

Download or read book Advanced Control of Grid Connected High Power Converters written by Chenghui Zhang and published by Springer Nature. This book was released on 2022-12-27 with total page 279 pages. Available in PDF, EPUB and Kindle. Book excerpt: The high-power grid-connected converters play a vital role in modern power system, realizing the conversion and transmission of electrical energy, and determining its safety, stability and efficiency. This book explores the advanced control strategies of high-power grid-connected converter to satisfy the high-power requirements in practical applications. Special attention is given to grid-connected converter modules in parallel operation to overcome the challenges of non-ideal power grid, power switches faults, and circulating current. Through the advanced control strategies presented in this book, the power capacity of grid-connected converter is flexibly increased with high-reliability and efficiency, thus expanding the application range of high-power converters in modern power system. To facilitate understanding, this book provides step-by-step model derivation and controller design for grid-connected converter. Meanwhile, it also provides the comprehensive simulation and experimental results to offer readers a deep insight into the control process of grid-connected converters. This book serves as a guide for electrical engineers and researchers involved in the development of high-power converters.

Download or read book Power Electronics Drives and Advanced Applications written by Vinod Kumar and published by CRC Press. This book was released on 2020-03-27 with total page 690 pages. Available in PDF, EPUB and Kindle. Book excerpt: Concern for reliable power supply and energy-efficient system design has led to usage of power electronics-based systems, including efficient electric power conversion and power semiconductor devices. This book provides integration of complete fundamental theory, design, simulation and application of power electronics, and drives covering up-to-date subject components. It contains twenty-one chapters arranged in four sections on power semiconductor devices, basic power electronic converters, advanced power electronics converters, power supplies, electrical drives and advanced applications. Aimed at senior undergraduate and graduate students in electrical engineering and power electronics including related professionals, this book • Includes electrical drives such as DC motor, AC motor, special motor, high performance motor drives, solar, electrical/hybrid vehicle and fuel cell drives • Reviews advances in renewable energy technologies (wind, PV, hybrid power systems) and their integration • Explores topics like distributed generation, microgrid, and wireless power transfer system • Includes simulation examples using MATLAB®/Simulink and over four hundred solved, unsolved and review problems

Download or read book Renewable Energy Systems written by Fang Lin Luo and published by CRC Press. This book was released on 2017-12-19 with total page 880 pages. Available in PDF, EPUB and Kindle. Book excerpt: Energy conversion techniques are key in power electronics and even more so in renewable energy source systems, which require a large number of converters. Renewable Energy Systems: Advanced Conversion Technologies and Applications describes advanced conversion technologies and provides design examples of converters and inverters for renewable energy systems—including wind turbine and solar panel energy systems. Learn Cutting-Edge Techniques for Converters and Inverters Setting the scene, the book begins with a review of the basics of astronomy and Earth physics. It then systematically introduces more than 200 topologies of advanced converters originally developed by the authors, including 150 updated circuits on modern conversion technologies. It also discusses recently published topologies and thoroughly analyzes new converter circuits. Novel approaches include split-capacitor and split-inductor techniques that can be applied in super-lift and other converters. Resolve Historic Problems in Conversion Technologies Along with offering many cutting-edge techniques, the authors resolve some historic problems, such as the accurate determination of the conduction angle of single-phase rectifiers and power factor correction. They also describe a new series—laddered multilevel inverters—that uses few devices to produce more levels, overcoming the drawbacks of the pulse-width-modulation (PWM) inverter and providing great scope for industrial applications. Tap the Knowledge of Pioneers in the Field This book is written by pioneers in advanced conversion technology who have created a large number of converters, including the world-renowned DC/DC Luo-converters and super-lift Luo-converters. Featuring numerous examples and diagrams, it guides readers in designing advanced converters for use in renewable energy systems.

Download or read book IEEE 1547 2018 Based Interoperable PV Inverter with Advanced Grid Support Functions Preprint written by and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Grid integration of photovoltaic (PV) inverters has been increasing in the past decade. Due to the uncertainties introduced with this high penetration, better monitoring and control of the assets becomes crucial for the system stability. Multiple standards are available to enable interoperability in PV inverters. In this paper, an interoperable controller, enabled by DNP3 communications protocols, is developed for a grid-connected, three-phase PV inverter. Advanced inverter control function setpoints like VVAR curves, ride-through curves are sent from a data management system application to the PV inverter through DNP3. The DNP3 server for the PV inverter is programmed on the real-time layer of the inverter controller. A controller hardware-in-the-loop experimental setup is used to validate the developed communications capability of the PV inverter. This work will enable grid integration of smart PV inverters with advanced grid-support functions as well as allow better monitoring and control of assets for grid stability.

Download or read book Advanced Applications for Smart Energy Systems Considering Grid Interactive Demand Response written by Angèle Reinders and published by MDPI. This book was released on 2019-12-20 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers applied research on smart energy systems, smart grids, smart energy homes, smart energy products and services, and the advanced applications thereof, in the context of demand response and grid interactions. In particular, this book is focused on interdisciplinary research results that combine technical, social, environmental, and economic aspects of smart energy systems and smart energy products. Moreover, several chapters are based on the evaluation of real life cases, energy pilots, prototypes of smart energy products, and end user surveys and interviews.

Download or read book Automated Design of Electrical Converters with Advanced AI Algorithms written by Xin Zhang and published by Springer Nature. This book was released on 2023-04-21 with total page 221 pages. Available in PDF, EPUB and Kindle. Book excerpt: A power converter is a device used in electrical engineering, power engineering, and the electric power sector to convert electric energy from one form to another, such as converting between AC and DC, changing voltage or frequency, or a combination of these. It is used in a variety of applications, such as industrial drives, power supply, energy generating equipment, consumer goods, electrical vehicles/aeroplanes/ships, smart grids and more.This book will open a door for engineers to design the power converters via the artificial intelligence (AI) method. It begins by reviewing current AI technology in power converters. The book then introduces customized AI algorithms for power converters that take into account the particular characteristics of power converters. The book then presents a set of AI-based design methodologies for power devices, including DC/DC converters, resonant DC/DC converters, bidirectional DC/DC converters, DC/AC inverters, and AC/DC rectifiers. This is the first book to cover all you need to know about using AI to create power converters, including a literature review, algorithm, and circuit design.

Download or read book Advances in Control Power Systems and Emerging Technologies written by Mohamed Bendaoud and published by Springer Nature. This book was released on with total page 324 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 A Single phase Current Source Solar Inverter with Constant Instantaneous Power Improved Reliability and Reduced size DC link Filter written by Craig R. Bush and published by . This book was released on 2013 with total page 83 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation presents a novel current source converter topology that is primarily intended for single-phase photovoltaic (PV) applications. In comparison with the existing PV inverter technology, the salient features of the proposed topology are: a) the low frequency (double of line frequency) ripple that is common to single-phase inverters is greatly reduced; b) the absence of low frequency ripple enables significantly reduced size pass components to achieve necessary DC-link stiffness and c) improved maximum power point tracking (MPPT) performance is readily achieved due to the tightened current ripple even with reduced-size passive components. The proposed topology does not utilize any electrolytic capacitors. Instead an inductor is used as the DC-link filter and reliable AC film capacitors are utilized for the filter and auxiliary capacitor. The proposed topology has a life expectancy on par with PV panels. The proposed modulation technique can be used for any current source inverter where an unbalanced three-phase operation is desires such as active filters and power controllers. The proposed topology is ready for the next phase of microgrid and power system controllers in that it accepts reactive power commands. This work presents the proposed topology and its working principle supported by with numerical verifications and hardware results. Conclusions and future work are also presented.