Handbook of Power System Engineering by Yoshihide Hase | PDF Free Download.
Yohshihide Hase was born in Gifu Prefecture, Japan, in 1937. After graduating in electrical engineering from Kyoto University, he joined the Toshiba Corporation in 1960 and took charge of various power system projects, both at home and abroad, including the engineering of generating station equipment, substation equipment, as well as power system control and protection, until 1996.
During that time, he held the positions of general manager, a senior executive of technology for the energy systems sector, and chief fellow.
In 1996, he joined Showa Electric Wire & Cable Company as the senior managing director and representative director and served on the board for eight years. He has been a lecturer at Kokushikan University since 2004.
He was the vice president of the IEEJ (1995–96) and was also the representative office of the Japanese National Committee of CIGRE (1987–1996) and has been bestowed as a distinguished member of CIGRE.
This book deals with the art and science of power system engineering for those engineers who work in electricity-related industries such as power utilities, manufacturing enterprises, engineering companies, or for students of electrical engineering in universities and colleges.
Each engineer’s relationship with power system engineering is extremely varied, depending on the types of companies they work for and their positions.
We expect readers to study the characteristics of power systems theory as a multi-dimensional concept by means of this book, regardless of readers’ business roles or specialties. We have endeavored to deal with the following three points as major features of the book:
First, as listed in the Contents, the book covers the theories of several subsystems, such as generating plants, transmission lines and substations, total network control, equipment-based local control, protection, and so on, as well as phenomena ranging from power (fundamental) frequency to lightning and switching surges, as the integrally unified art and science of power systems.
Any equipment in a power system network plays its role by closely linking with all other equipment, and any theory, technology, or phenomenon of one network is only a viewpoint of the profound dynamic behavior of the network.
This is the reason why we have covered different categories of theories combined in a single hierarchy in this book. Secondly, readers can learn about the essential dynamics of power systems mostly through mathematical approaches.
We explain our approach by starting from physically understandable equations and then move on to the final solutions that illustrate actual phenomena, and never skip explanations or adopt half-measures in the derivations.
Another point here is the difference in meaning between ‘pure mathematically solvable’ and ‘engineering analytically solvable’.
For example, a person (even if expert in transient analysis) cannot derive transient voltage and current solutions of a simple circuit with only a few LCR constants connected in series or parallel because the equational process is too complicated, except in special cases.
Therefore only solutions of special cases are demonstrated in books on transient analysis. However, engineers often have to find solutions to such circuits by manual calculation.
As they usually know the actual values of LCR constants in such cases, they can derive ‘exact solutions’ by theoretically justified approximation. Also, an appropriate approximation is an important technique to find the correct solution.
Readers will also find such approximation techniques in this book. Thirdly, the book deals with scientific theories of power system networks that will essentially never change.
We intentionally excluded descriptions of advanced technologies, expecting such technologies to continue to advance year by year.
In recent years, analytical computation or simulation of the behavior of large power systems or complicated circuits has been executed by the application of powerful computers with outstanding software.
However, it is quite easy to mishandle the analysis or the results because of the number of so many influential parameters. In this book, most of the theoretical explanation is based on typical simple circuits with one or two generators and one or two transmission lines.
A precise understanding of the phenomena in such simple systems must always be the basis of understanding actual large systems and the incidents that may occur on them. This is the reason why power system behavior is studied using small models
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