78 research outputs found
Advances and Technologies in High Voltage Power Systems Operation, Control, Protection and Security
The electrical demands in several countries around the world are increasing due to the huge energy requirements of prosperous economies and the human activities of modern life. In order to economically transfer electrical powers from the generation side to the demand side, these powers need to be transferred at high-voltage levels through suitable transmission systems and power substations. To this end, high-voltage transmission systems and power substations are in demand. Actually, they are at the heart of interconnected power systems, in which any faults might lead to unsuitable consequences, abnormal operation situations, security issues, and even power cuts and blackouts. In order to cope with the ever-increasing operation and control complexity and security in interconnected high-voltage power systems, new architectures, concepts, algorithms, and procedures are essential. This book aims to encourage researchers to address the technical issues and research gaps in high-voltage transmission systems and power substations in modern energy systems
Real-Time Diagnosis of Open Circuit Faults in Three-Phase Voltage Source Inverters
This article investigates the real-time diagnosis of single and double open circuit faults (OCFs) in three-phase voltage source inverters (VSIs). The method analyzes the phase current waveforms continuously in real-time, and abnormal patterns of the current waves due to the corresponding switch OCFs are extracted to define as the fault detection waveforms (FDW). The current values of the FDWs are analyzed and a new scheme is developed to distinguish current waveform patterns from those of normal to unbalanced loads situations and switch OCFs. The scheme detects the starting zero crossing point first and then checks the magnitudes of the FDW. Periodic detections are applied to identify whether the collected data samples are within the FDW current range. The OCFs of the inverter switches are identified by counting the fault points within the predicted samplings of FDWs. The method has been verified through both simulations and experiments. The results confirm the effectiveness of the proposed scheme
Advanced Operation and Maintenance in Solar Plants, Wind Farms and Microgrids
This reprint presents advances in operation and maintenance in solar plants, wind farms and microgrids. This compendium of scientific articles will help clarify the current advances in this subject, so it is expected that it will please the reader
Microgrids
Microgrids are a growing segment of the energy industry, representing a paradigm shift from centralized structures toward more localized, autonomous, dynamic, and bi-directional energy networks, especially in cities and communities. The ability to isolate from the larger grid makes microgrids resilient, while their capability of forming scalable energy clusters permits the delivery of services that make the grid more sustainable and competitive. Through an optimal design and management process, microgrids could also provide efficient, low-cost, clean energy and help to improve the operation and stability of regional energy systems. This book covers these promising and dynamic areas of research and development and gathers contributions on different aspects of microgrids in an aim to impart higher degrees of sustainability and resilience to energy systems
Industrial Applications: New Solutions for the New Era
This book reprints articles from the Special Issue "Industrial Applications: New Solutions for the New Age" published online in the open-access journal Machines (ISSN 2075-1702). This book consists of twelve published articles. This special edition belongs to the "Mechatronic and Intelligent Machines" section
Use, Operation and Maintenance of Renewable Energy Systems:Experiences and Future Approaches
The aim of this book is to put the reader in contact with real experiences, current
and future trends in the context of the use, exploitation and maintenance of renewable
energy systems around the world. Today the constant increase of production
plants of renewable energy is guided by important social, economical, environmental
and technical considerations. The substitution of traditional methods of
energy production is a challenge in the current context. New strategies of exploitation,
new uses of energy and new maintenance procedures are emerging naturally
as isolated actions for solving the integration of these new aspects in the current
systems of energy production. This book puts together different experiences in
order to be a valuable instrument of reference to take into account when a system
of renewable energy production is in operation
Advances in the Field of Electrical Machines and Drives
Electrical machines and drives dominate our everyday lives. This is due to their numerous applications in industry, power production, home appliances, and transportation systems such as electric and hybrid electric vehicles, ships, and aircrafts. Their development follows rapid advances in science, engineering, and technology. Researchers around the world are extensively investigating electrical machines and drives because of their reliability, efficiency, performance, and fault-tolerant structure. In particular, there is a focus on the importance of utilizing these new trends in technology for energy saving and reducing greenhouse gas emissions. This Special Issue will provide the platform for researchers to present their recent work on advances in the field of electrical machines and drives, including special machines and their applications; new materials, including the insulation of electrical machines; new trends in diagnostics and condition monitoring; power electronics, control schemes, and algorithms for electrical drives; new topologies; and innovative applications
Control of Energy Storage
Energy storage can provide numerous beneficial services and cost savings within the electricity grid, especially when facing future challenges like renewable and electric vehicle (EV) integration. Public bodies, private companies and individuals are deploying storage facilities for several purposes, including arbitrage, grid support, renewable generation, and demand-side management. Storage deployment can therefore yield benefits like reduced frequency fluctuation, better asset utilisation and more predictable power profiles. Such uses of energy storage can reduce the cost of energy, reduce the strain on the grid, reduce the environmental impact of energy use, and prepare the network for future challenges. This Special Issue of Energies explore the latest developments in the control of energy storage in support of the wider energy network, and focus on the control of storage rather than the storage technology itself
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