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Soft Switched Dc To Dc Converters For Power Conditioning Of Electrolyser In A Renewable Energy System
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Book Synopsis Soft-switched DC-to-DC Converters for Power Conditioning of Electrolyser in a Renewable Energy System by : Deepak Gautam
Download or read book Soft-switched DC-to-DC Converters for Power Conditioning of Electrolyser in a Renewable Energy System written by Deepak Gautam and published by . This book was released on 2006 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: An Electrolyser is a part of a renewable energy system (RES) and generates hydrogen from water electrolysis that is used in fuel cells. A dc-to-dc converter is required to couple the Electrolyser to the system DC bus. This thesis presents an extensive comparison of three soft-switched high-frequency transformer isolated dc-to-dc converters for this application. It is shown that LCL-type series resonant converter (SRC) with capacitive output filter is suitable for this application. Due to the wide variation in input voltage and load current, no converter can maintain zero-voltage switching (ZVS) for the complete operating range. To overcome this problem, two new converter configurations are proposed. Proposed Configuration 1 is a two-stage boost-LCL SRC with capacitive output filter and Proposed Configuration 2 is a transient-boost dual half-bridge LCL SRC with capacitive output filter. Operating principle, design, simulation and experimental results of the newly proposed converters are also presented.
Book Synopsis Soft-switched DC-to-DC Converters for Power Conditioning of Electrolyser in a Renewable Energy System by : Deepak Gautam
Download or read book Soft-switched DC-to-DC Converters for Power Conditioning of Electrolyser in a Renewable Energy System written by Deepak Gautam and published by . This book was released on 2006 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: An Electrolyser is a part of a renewable energy system (RES) and generates hydrogen from water electrolysis that is used in fuel cells. A dc-to-dc converter is required to couple the Electrolyser to the system DC bus. This thesis presents an extensive comparison of three soft-switched high-frequency transformer isolated dc-to-dc converters for this application. It is shown that LCL-type series resonant converter (SRC) with capacitive output filter is suitable for this application. Due to the wide variation in input voltage and load current, no converter can maintain zero-voltage switching (ZVS) for the complete operating range. To overcome this problem, two new converter configurations are proposed. Proposed Configuration 1 is a two-stage boost-LCL SRC with capacitive output filter and Proposed Configuration 2 is a transient-boost dual half-bridge LCL SRC with capacitive output filter. Operating principle, design, simulation and experimental results of the newly proposed converters are also presented.
Book Synopsis Soft-switched DC-to-DC Converters for Power Conditioning of Electrolyser in a Renewable Energy System by :
Download or read book Soft-switched DC-to-DC Converters for Power Conditioning of Electrolyser in a Renewable Energy System written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: An Electrolyser is a part of a renewable energy system (RES) and generates hydrogen from water electrolysis that is used in fuel cells. A dc-to-dc converter is required to couple the Electrolyser to the system DC bus. This thesis presents an extensive comparison of three soft-switched high-frequency transformer isolated dc-to-dc converters for this application. It is shown that LCL-type series resonant converter (SRC) with capacitive output filter is suitable for this application. Due to the wide variation in input voltage and load current, no converter can maintain zero-voltage switching (ZVS) for the complete operating range. To overcome this problem, two new converter configurations are proposed. Proposed Configuration 1 is a two-stage boost-LCL SRC with capacitive output filter and Proposed Configuration 2 is a transient-boost dual half-bridge LCL SRC with capacitive output filter. Operating principle, design, simulation and experimental results of the newly proposed converters are also presented.
Book Synopsis Non-Isolated DC-DC Converters for Renewable Energy Applications by : Frede Blaabjerg
Download or read book Non-Isolated DC-DC Converters for Renewable Energy Applications written by Frede Blaabjerg and published by CRC Press. This book was released on 2021-04-22 with total page 205 pages. Available in PDF, EPUB and Kindle. Book excerpt: Photovoltaic (PV) energy generation is an excellent example of large-scale electric power generation through various parallel arrangements of small voltage-generating solar cells or modules. However, PV generation systems require power electronic converters system to satisfy the need for real-time applications or to balance the demand for power from electric. Therefore, a DC-DC power converter is a vital constituent in the intermediate conversion stage of PV power. This book presents a comprehensive review of various non-isolated DC-DC power converters. Non-isolated DC-DC converters for renewable energy system (RES) application presented in this book 1st edition through a detailed original investigation, obtained numerical/experimental results, and guided the scope to design new families of converters: DC-DC multistage power converter topologies, Multistage "X-Y converter family", Nx IMBC (Nx Interleaved Multilevel Boost Converter), Cockcroft Walton (CW) Voltage Multiplier-Based Multistage/Multilevel Power Converter (CW-VM-MPC) converter topologies, and Z-source and quasi Z-source. Above solutions are discussed to show how they can achieve the maximum voltage conversion gain ratio by adapting the passive/active component within the circuits. For assessment, we have recommended novel power converters through their functionality and designs, tested and verified by numerical software. Further, the hardware prototype implementation is carried out through a flexible digital processor. Both numerical and experimental results always shown as expected close agreement with primary theoretical hypotheses. This book offers guidelines and recommendation for future development with the DC-DC converters for RES applications based on cost-effective, and reliable solutions.
Book Synopsis Emerging Power Converters for Renewable Energy and Electric Vehicles by : Md Rabiul Islam
Download or read book Emerging Power Converters for Renewable Energy and Electric Vehicles written by Md Rabiul Islam and published by CRC Press. This book was released on 2021-04-22 with total page 411 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers advancements of power electronic converters and their control techniques for grid integration of large-scale renewable energy sources and electrical vehicles. Major emphasis are on transformer-less direct grid integration, bidirectional power transfer, compensation of grid power quality issues, DC system protection and grounding, interaction in mixed AC/DC system, AC and DC system stability, magnetic design for high-frequency high power density systems with advanced soft magnetic materials, modelling and simulation of mixed AC/DC system, switching strategies for enhanced efficiency, and protection and reliability for sustainable grid integration. This book is an invaluable resource for professionals active in the field of renewable energy and power conversion.
Book Synopsis New Topologies and Modulation Schemes for Soft-Switching Isolated DC–DC Converters by : Zhiqiang Guo
Download or read book New Topologies and Modulation Schemes for Soft-Switching Isolated DC–DC Converters written by Zhiqiang Guo and published by Springer Nature. This book was released on 2019-09-20 with total page 243 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a series of new topologies and modulation schemes for soft-switching in isolated DC–DC converters. Providing detailed analyses and design procedures for converters used in a broad range of applications, it offers a wealth of engineering insights for researchers and students in the field of power electronics, as well as stimulating new ideas for future research.
Book Synopsis High Efficiency Non-isolated DC-DC Converters with Wide Voltage Gain Range for Renewable Energies by : Yun Zhang
Download or read book High Efficiency Non-isolated DC-DC Converters with Wide Voltage Gain Range for Renewable Energies written by Yun Zhang and published by Springer Nature. This book was released on with total page 289 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Non Isolated Soft Switching DC-DC Converter for Solar Installation by : Athimulam Kalirasu
Download or read book Non Isolated Soft Switching DC-DC Converter for Solar Installation written by Athimulam Kalirasu and published by LAP Lambert Academic Publishing. This book was released on 2012-06 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the shortage of the energy and ever increasing of the oil price, research on the renewable and green energy sources, especially the solar arrays and the fuel cells, become more and more important. How to achieve step-up and high efficiency DC/DC converters is the major consideration in the renewable power applications due to the low voltage of PV arrays and fuel cells. This book discussed an Embedded controlled Non-isolated DC to DC boost converter for solar installation system. The topology study with step-up conversion in open loop and closed loop systems proposed in these applications are covered and classified. Non-isolated DC to DC Boost converter system is simulated using Matlab and it is implemented using embedded controller. The simulation and experimental results of this system are presented and compared. This converter has advantages like fast response and delivers maximum power with minimum components.
Book Synopsis High Power Medium Voltage DC Grid-Connected Converter for Renewable Energy Generation by : Wu Chen
Download or read book High Power Medium Voltage DC Grid-Connected Converter for Renewable Energy Generation written by Wu Chen and published by Springer Nature. This book was released on with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis DC—DC Converters for Future Renewable Energy Systems by : Neeraj Priyadarshi
Download or read book DC—DC Converters for Future Renewable Energy Systems written by Neeraj Priyadarshi and published by Springer Nature. This book was released on 2021-09-27 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book presents the analysis and control of numerous DC-DC converters widely used in several applications such as standalone, grid integration, and motor drives-based renewable energy systems. The book provides extensive simulation and practical analysis of recent and advanced DC-DC power converter topologies. This self-contained book contributes to DC-DC converters design, control techniques, and industrial as well as domestic applications of renewable energy systems. This volume will be useful for undergraduate/postgraduate students, energy planners, designers, system analysis, and system governors.
Book Synopsis Soft Commutation Isolated DC-DC Converters by : Ivo Barbi
Download or read book Soft Commutation Isolated DC-DC Converters written by Ivo Barbi and published by Springer. This book was released on 2018-08-27 with total page 325 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes the operation and analysis of soft-commutated isolated DC–DC converters used in the design of high efficiency and high power density equipment. It explains the basic principles behind first- and second-order circuits with power switches to enable readers to understand the importance of these converters in high efficiency and high power density power supply design for residential, commercial, industrial and medical use as well as in aerospace equipment. With each chapter featuring a different power converter topology, the book covers the most important resonant converters, including series resonant converters; resonant LLC converters; soft commutation pulse width modulation converters; zero voltage switching; and zero current switching. Each topic is presented with full analysis, a showcase of the power stages of the converters, exercises and their solutions as well as simulation results, which mainly focus on the commutation analysis and output characteristic. This book is a valuable source of information for professionals working in power electronics, power conversion and design of high efficiency and high power density DC–DC converters and switch mode power supplies. The book also serves as a point of reference for engineers responsible for development projects and equipment in companies and research centers and a text for advanced students.
Book Synopsis Advanced DC-DC Power Converters and Switching Converters by : Salvatore Musumeci
Download or read book Advanced DC-DC Power Converters and Switching Converters written by Salvatore Musumeci and published by MDPI. This book was released on 2021-03-30 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nowadays, power electronics is an enabling technology in the energy development scenario. Furthermore, power electronics is strictly linked with several fields of technological growth, such as consumer electronics, IT and communications, electrical networks, utilities, industrial drives and robotics, and transportation and automotive sectors. Moreover, the widespread use of power electronics enables cost savings and minimization of losses in several technology applications required for sustainable economic growth. The topologies of DC–DC power converters and switching converters are under continuous development and deserve special attention to highlight the advantages and disadvantages for use increasingly oriented towards green and sustainable development. DC–DC converter topologies are developed in consideration of higher efficiency, reliable control switching strategies, and fault-tolerant configurations. Several types of switching converter topologies are involved in isolated DC–DC converter and nonisolated DC–DC converter solutions operating in hard-switching and soft-switching conditions. Switching converters have applications in a broad range of areas in both low and high power densities. The articles presented in the Special Issue titled "Advanced DC-DC Power Converters and Switching Converters" consolidate the work on the investigation of the switching converter topology considering the technological advances offered by innovative wide-bandgap devices and performance optimization methods in control strategies used.
Book Synopsis Advanced Power Electronics Converters for Future Renewable Energy Systems by : Neeraj Priyadarshi
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.
Book Synopsis Analysis and Design of Series LC Resonant-Pulse Assisted Soft-Switching Current-Fed DC/DC Converters by : swati tandon
Download or read book Analysis and Design of Series LC Resonant-Pulse Assisted Soft-Switching Current-Fed DC/DC Converters written by swati tandon and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The accelerating pace of electrification via renewable energy sources is shifting focus towards de-carbonization and distributed generation with the potential to combat increasing environmental crisis and to promote sustainable development. Renewable technologies have the potential to fulfil the electricity demand locally which eliminates the unwanted conversion stages, promoting DC microgrid concept, ultimately lowering the energy costs and easy energy access. Alternative energy sources such as solar photovoltaic (PV) and fuel cell along with energy storage systems are promising for DC microgrid applications. However, the effective integration of these alternative energy sources still remains a challenge due to their low voltage output, unregulated and intermittent characteristics issuing a requirement of a dedicated power conditioning unit. To revolutionize the way these alternative sources are interfaced with a high voltage DC microgrid or to the conventional ac grid, dc/dc converters are expected to be power-dense, compact and extremely efficient. Current-fed dc/dc converters have strong application potential owing to their inherent merits. Accomplishing the abovementioned objectives together with distinct merits offered by current-fed circuits, this thesis aims to exploit the quasi-resonance concept for achieving soft-switching and smooth commutation of the semiconductor switching devices. The proposed quasi resonant approach that utilizes the leakage inductance of transformer and a high frequency series resonant capacitor for a short period also termed as 'resonant-pulse', has been investigated in various current-fed converter topologies. Proposed converter class emphasize on simple and efficient design, without the use of additional snubber circuits and eliminates device turn-off voltage spike, which is a historical problem with traditional current-fed converters. In this thesis, at first the proposed series resonant-pulse concept is implemented in single-phase current-fed push-pull and half-bridge configuration. The converter operation, control and performance are investigated for low voltage high current specifications. These converter configurations demonstrate good efficiency and compact structure with only two switching devices and simpler gate control requirement because devices having common ground with power supply. The idea has then been extended to modular current-fed full-bridge topology. The proposed series resonant-pulse assisted converter enables wide range ZCS and turn-off spike elimination across the semiconductor switches. Modularity of this converter allows easy scalability for high power and voltage levels with significantly lower current and voltage stress, making it suitable for relatively higher power industrial applications. Lastly, to achieve high power capability with high density, three-phase current sharing current-fed topology utilizing series resonant-pulse feature has been studied and investigated in detail. The proposed three-phase topology combines the benefits of current-sharing primary and load adaptive series resonant-pulse. As a result, these converters demonstrate promising attributes such as wide ZCS operation, reduced filtering requirement, lower component count, lower conduction losses etc.
Book Synopsis Soft-Switched Multi-Input Converter for Renewable Energy Systems by : Sanjida Moury
Download or read book Soft-Switched Multi-Input Converter for Renewable Energy Systems written by Sanjida Moury and published by . This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In a renewable energy system, multiple energy sources (such as combining renewable energy and energy storage) are utilized together to enhance the overall energy conversion reliability since renewable energy, such as wind and solar, are intermittent in nature. In conventional power architecture, each energy source requires a dedicated individual power converter to perform specific control or power management function. To reduce the overall number of circuit components, multi-input converter (MIC) configuration provides a cost effective power architecture when multiple energy sources are utilized, as they can use fewer filter circuit components and utilize smaller system space. To maximize the features offered by MICs, a truly power efficient and compact MIC should utilize minimal number of active switching components with soft-switching features, while at the same time, assist each energy power interface to achieve all the required control functions. In the first part of this thesis, a class of several soft-switched DC-DC MICs is proposed, where each input module of the devised MICs utilizes only a single switch. Each of the presented MIC circuits can also be integrated with a front-end (either single phase or three phase) AC-DC stage without adding additional switches to interface with renewable energy generation unit that outputs an AC voltage. In addition, input power factor correction is also provided. The second part of this thesis investigates the use of the devised DC-DC MIC circuit to improve the double power conversion steps typically seen in a solar-battery energy conversion system with a common DC grid that utilizes a bi-directional energy storage power converter. This chapter focuses on the development of a soft-switched MIC circuit that consists of integrated unidirectional energy storage (i.e. battery) power interface, for use in module-connected solar energy power optimizer system with distributed energy storage. In the proposed circuit, the storage charging (storage absorbs power) circuit is integrated with the input stage of the main converter via high frequency AC link, whereas the storage discharging (storage delivers power) circuit is connected to the output stage of MIC. As a result, energy is directed from the input to the battery and from the battery to the load through a single power conversion step. The third part of this thesis utilizes the circuit concepts devised previously to develop a new soft-switched MIC configuration that consists of an integrated unidirectional energy storage power interface, as well as to provide output voltage regulation. Hence, the proposed MIC is applicable for both regulated and unregulated grids. The control mechanism of the proposed system is presented. The operating principles and characteristics of each proposed converter topology are provided in detail. Simulation and experimental results on proof-of-concept prototypes are provided to demonstrate the functionalities of each devised MIC topology.
Book Synopsis New Topologies and Modulation Schemes for Soft-switching Isolated DC-DC Converters by : Zhiqiang Guo
Download or read book New Topologies and Modulation Schemes for Soft-switching Isolated DC-DC Converters written by Zhiqiang Guo and published by . This book was released on 2020 with total page 243 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a series of new topologies and modulation schemes for soft-switching in isolated DC-DC converters. Providing detailed analyses and design procedures for converters used in a broad range of applications, it offers a wealth of engineering insights for researchers and students in the field of power electronics, as well as stimulating new ideas for future research.
Book Synopsis Power Electronics Converters and their Control for Renewable Energy Applications by : Arezki Fekik
Download or read book Power Electronics Converters and their Control for Renewable Energy Applications written by Arezki Fekik and published by Elsevier. This book was released on 2023-06-21 with total page 349 pages. Available in PDF, EPUB and Kindle. Book excerpt: Power Electronics Converters and their Control for Renewable Energy Applications provides information that helps to solve common challenges with power electronics converters, including loss by switching, heating of power switches, management of switching time, improvement of the quality of the signals delivered by power converters, and improvement of the quality of energy produced by renewable energy sources. This book is of interest to academics, researchers, and engineers in renewable energy, power systems, electrical engineering, electronics, and mechanical engineering. Includes important visual illustrations and imagery of concise circuit schematics and renewable energy applications Features a templated approach for step-by-step implementation of the new MPPT algorithm based on recent and intelligent techniques Provides methods for optimal harnessing of energy from renewable energy sources and converter topology synthesis
