Shin'ya Obara – författare

Microgrids are electric power grids composed of loads and distributed energy resources which provide electricity to villages, university campuses and other entities usually smaller than cities which are capable of operating independently from the larger grid if necessary. Such systems are gaining importance in times of rising shares of renewable power and desire for energy resilience.There is a need for an updated work and overview describing the latest technology in microgrids and also adding perspectives of economics, environment and energy policies, including microgrids for cold regions, and future trends. The aim of this work is to give this complete overview of the latest technology around the world, and the interrelation with clean energy systems. Topics covered include key concepts and definitions; microgrid communication and control; storage systems for microgrids; microgrid reliability; clean generation in microgrids; country case studies; economics and policies. The book is essential reading for researchers and practicing engineers, as well as advanced students.

Fuel Cell Micro-grids describes an energy supply method based on a network of two or more proton exchange membrane fuel cells (PEM-FC). Such a network enables the effective use of exhaust heat, the simplification of the transmission network, the possibility of backup during disruptive hazards and the consideration of regional factors. Furthermore, green energy and renewable energy systems can be connected to the network, to function in cooperation with the fuel cells. For these reasons, it is believed that an increasing number of applications will make use of such fuel cell energy networks.Fuel Cell Micro-grids analyses the operation plan of these new energy supply methods using genetic algorithms. The book explains the results of the analysis of the optimization operation plan, energy cost, and greenhouse gas discharge characteristics for many application cases of the fuel cell network.

Green energy is essential to the development of a sustainable society but its output can be unstable. It is therefore necessary to develop a network where both conventional and green energy systems cooperate to generate a stable, compound supply. Compound Energy Systems: Optimal Operation Methods describes the construction and operation of compound energy systems using the latest optimization methods. The authors examine the combination of traditional and alternative energy systems, which is becoming an increasingly popular solution to green energy. Important factors such as cost, efficiency and dynamic characteristics are all considered. The green energy sources discussed include fuel cells, bioethanol reformers, geo-thermal heat pumps, solar cells and wind power. This book, a distillation of information only touched upon in other books, is aimed at undergraduate and postgraduate students, scientists, engineers and industrialists with an interest in the field.