Harmonics Regulation and Mitigation in Low-voltage Distribution Systems of Large Buildings PDF Download
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Author: Zhenhuan Yuan
Publisher:
ISBN:
Category : Harmonics (Electric waves)
Languages : en
Pages : 598
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Book Description
Author: Zhenhuan Yuan
Publisher:
ISBN:
Category : Harmonics (Electric waves)
Languages : en
Pages : 598
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Book Description
Author: Dr T. Himabindu
Publisher: Archers & Elevators Publishing House
ISBN: 811938573X
Category : Antiques & Collectibles
Languages : en
Pages : 72
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Book Description
Author: Eddy Christian Aeloiza Matus
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Numerous approaches have been proposed in order to resolve the problems of current harmonics in electrical distribution systems. The rapid development of power semiconductors along with the revolutionary advances on microprocessors consolidated the motor drives industry and with it a massive proliferation of non-linear loads. It was thought that these very same technological advances would trigger an explosive development of harmonic solutions based on power electronics. Moreover, the introduction of the instantaneous active and reactive power theory or the so-called p, q theory which simplifies and gives more robustness to the control strategies of active filters reinforced this idea. Three decades have passed since the first IGBT was introduced in early 1980s, and active harmonic solutions are not the first choice to solve harmonic pollution in electrical distribution systems, mainly due to the high cost and the perception of low reliability. Given this scenario, in this work two main approaches are explored. First, the combination of an asymmetric 18-pulse rectifier with a reduced KVA active harmonic filter to improve the performance under abnormal utility conditions. Second, an interleaved active harmonic filter using multiple inverters connected in parallel at the ac and dc size, which will allow for higher power ratings and power density increase. The performance issues of the asymmetric 18-pulse rectifier under unbalanced voltage and pre-existing harmonic components are analyzed, as well as the current distortion improvement, achieved when an active power filter is introduced. On the other hand, the high frequency harmonic cancellation when interleaved inverters are used, the circulation of zero-sequence current and the impact of interleaving on dc bus capacitor are analyzed. Finally, some methods to mitigate the low frequency circulating currents based on eliminating the zero-sequence component, and the introduction of common mode inductors to reduce the high frequency circulating current are studied. Without a doubt the search for new cost-effective topologies able to reach broader power levels and voltage ranges will continue emerging giving more alternatives to users. Moreover, extensive research on wide band gap devices such as Silicon Carbide (SiC) and Gallium Nitride (GaN), with which it is possible to reach higher voltage breakdown and at least an order-of-magnitude lower switching losses, makes the future more promising for active solutions. The electronic version of this dissertation is accessible from http://hdl.handle.net/1969.1/148362
Author: Radian Belu
Publisher: CRC Press
ISBN: 1482263580
Category : Technology & Engineering
Languages : en
Pages : 631
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Book Description
This book covers all important, new, and conventional aspects of building electrical systems, power distribution, lighting, transformers and rotating electric machines, wiring, and building installations. Solved examples, end-of-chapter questions and problems, case studies, and design considerations are included in each chapter, highlighting the concepts, and diverse and critical features of building and industrial electrical systems, such as electric or thermal load calculations; wiring and wiring devices; conduits and raceways; lighting analysis, calculation, selection, and design; lighting equipment and luminaires; power quality; building monitoring; noise control; building energy envelope; air-conditioning and ventilation; and safety. Two chapters are dedicated to distributed energy generation, building integrated renewable energy systems, microgrids, DC nanogrids, power electronics, energy management, and energy audit methods, topics which are not often included in building energy textbooks. Support materials are included for interested instructors. Readers are encouraged to write their own solutions while solving the problems, and then refer to the solved examples for more complete understanding of the solutions, concepts, and theory.
Author:
Publisher:
ISBN:
Category : Electric power systems
Languages : en
Pages : 428
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Book Description
Author: Bhim Singh
Publisher: John Wiley & Sons
ISBN: 1118922050
Category : Technology & Engineering
Languages : en
Pages : 596
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Book Description
Maintaining a stable level of power quality in the distribution network is a growing challenge due to increased use of power electronics converters in domestic, commercial and industrial sectors. Power quality deterioration is manifested in increased losses; poor utilization of distribution systems; mal-operation of sensitive equipment and disturbances to nearby consumers, protective devices, and communication systems. However, as the energy-saving benefits will result in increased AC power processed through power electronics converters, there is a compelling need for improved understanding of mitigation techniques for power quality problems. This timely book comprehensively identifies, classifies, analyses and quantifies all associated power quality problems, including the direct integration of renewable energy sources in the distribution system, and systematically delivers mitigation techniques to overcome these problems. Key features: • Emphasis on in-depth learning of the latest topics in power quality extensively illustrated with waveforms and phasor diagrams. • Essential theory supported by solved numerical examples, review questions, and unsolved numerical problems to reinforce understanding. • Companion website contains solutions to unsolved numerical problems, providing hands-on experience. Senior undergraduate and graduate electrical engineering students and instructors will find this an invaluable resource for education in the field of power quality. It will also support continuing professional development for practicing engineers in distribution and transmission system operators.
Author:
Publisher:
ISBN:
Category : Power electronics
Languages : en
Pages : 618
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Book Description
Author: Oliver D. Doleski
Publisher: Walter de Gruyter GmbH & Co KG
ISBN: 3111264270
Category : Science
Languages : en
Pages : 1028
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Book Description
Bridging the technical and the economical worlds of the energy sector and establishing a solid understanding of today's energy supply as a complex system– with these missions in mind, the book at hand compactly describes the fundamentals of electrical power supply in a dialogue between technology and non-technology, between academia and practitioners, and between nations and continents. Today, energy supply is a complex global system – it is time for a dialogue of the disciplines. In this book, experts explain in an understandable manner the technical foundations and selected specific aspects of today's electrical power supply. Each chapter supplies a fundamental introduction in layman's terms to the topic and serves technical specialists both as a reference and as an opportunity to expand their knowledge. Practical examples and case studies complete the compendium. Technology and economics in the energy sector work on the same questions out of different perspectives. The increasing complexity and interconnections and the epochal upheavals in the energy sector make a comprehensive understanding of the energy sector as a system an essential requirement. This necessitates an ongoing and successful dialogue between the disciplines and between academia and practitioners. To that aim, this book serves both as a compact reference for everyone interested in the energy sector and as a true translation aid between the professional disciplines.
Author: M. Dolores Esteban
Publisher: MDPI
ISBN: 3036513825
Category : Technology & Engineering
Languages : en
Pages : 442
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Book Description
In the current scenario in which climate change dominates our lives and in which we all need to combat and drastically reduce the emission of greenhouse gases, renewable energies play key roles as present and future energy sources. Renewable energies vary across a wide range, and therefore, there are related studies for each type of energy. This Special Issue is composed of studies integrating the latest research innovations and knowledge focused on all types of renewable energy: onshore and offshore wind, photovoltaic, solar, biomass, geothermal, waves, tides, hydro, etc. Authors were invited submit review and research papers focused on energy resource estimation, all types of TRL converters, civil infrastructure, electrical connection, environmental studies, licensing and development of facilities, construction, operation and maintenance, mechanical and structural analysis, new materials for these facilities, etc. Analyses of a combination of several renewable energies as well as storage systems to progress the development of these sustainable energies were welcomed.
Author: IEEE Industry Applications Society. Annual Meeting
Publisher:
ISBN:
Category : Electric power
Languages : en
Pages : 722
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Book Description
