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Location ID: 0501,0501,EN

Electrical Engineering

Electrical Engineering

About Electrical Engineering

Studies in a wide spectrum of fields related to electrical technology, with energy and controls as the core subjects, are conducted. Research fields are divided into the electricity and energy, systems controls and robotics, and electrical materials and devices clusters, corresponding to industries that are becoming more advanced and high tech.

Research Domain

Electric vehicles, energy conversion, affective engineering, clean energy, transportation safety, visual information processing, energy conservation, lighting design, solar cells, low power consumption technologies, electric power supplies, power electronics, mechatronics, robots, monitoring, linear motors, micro and nano-machining, embedded systems

Infinity driving distance in Electric Vehicle by high power Wireless Power Transfer

Kan Akatsu

Wireless Power Transfer technique is very attractive technique to realize non-contact energy charging to Electric Vehicle. However, sending higher electric power with long distance is very difficult because high frequency operation is required. Our research goal is to send 10kW with 1m distance. The operating frequency is 13.56MHz. If this power transfer is realized, the running vehicle charging from not only the road but also the side wall will be possible. The cheaper energy charging system will be realized, the electric vehicle can continue to run with electric charging, the one charge driving distance will be infinity. We have already succeed to make 1kW inverter operated by 13.56MHz with over 90% efficiency, we could transfer about 1kW electric power by own made antenna, also we designed receiving rectifier to control both the impedance and the power factor.
We will transfer 3kW until 2017 and we will drive 1kW electric machine by wireless power transfer. 10kW electric power transfer will be success in 2020.

Fig. Concept of the charging system to running electric vehicle
Fig. Concept of the charging system to running electric vehicle
Fig. The antenna to send 1kW with 1m distance
Fig. The antenna to send 1kW with 1m distance
The inverter oprated by 13.56MHz with 93% efficiency
The inverter oprated by 13.56MHz with 93% efficiency

Multi-Copter Robot for infrastructure inspection

Tadahiro Hasegawa

We develop the semi-auto multi-copter for infrastructure inspection, which is supported by Council for Science, Technology and Innovation (CSTI), Cross-ministerial Strategic Innovation Promotion Program (SIP), (Funding agency : JST). There are other research groups that carried out experiments using a multi-copter with camera for building inspection for years. It is hard to inspect infrastructure as the multi-copter did not stay at a fix position, which leads to distortion of images or videos taken by multi-copter. On the contrary, our semi-auto multi-copter can be control manually and autonomously equips with novel flexible electrostatic absorption devices. With flexible electrostatic absorption devices attached to this semi-auto multi-copter, proposed algorithm would be the best for close-range inspection using multi-copter as it ensure a fix position during infrastructure inspection thus improve close-range inspection results.

Multi-Copter Robot for infrastructure inspection
Multi-Copter Robot for infrastructure inspection
Multi-Copter Robot for infrastructure inspection
Lab. Detail Head of Lab. Keyword
M&E Energy Conversion Lab. Detail Kan Akatsu  
SciVal Profile Satoko Abiko  
SciVal Profile Yoshinobu Ando  
Visual Information Detail Takashi Irikura Lighting Environment,Comfortable Lighting Environment,Glare,Effective Visual Field,Conspicuity
SciVal Profile Makoto Saito  
Electromagnetic Actuator Lab. Detail Shoji Shimomura electric machine, permanent magnet motor, motor drive, power electronics
SciVal Profile Hiroshi Takami  
Energy Materials Laboratory Detail Hiroyuki Nishikawa Dielectrics, Photon, Ion beam, Proton Beam Writing, Micro/nano fabrication, Surface modification, 3D micromachining
Micro Mechatronics Lab. Detail Tadahiro Hasegawa Field robotics, mobile robot, micro chemical device
Power System Laboratory Detail Goro Fujita electric power system, generation, transmission, distribution, micro grid, smart grid
SciVal Profile Satoshi Matsumoto  
SciVal Profile Takashi Yoshimi  

The vision of the Department of Electrical Engineering is to nurture individuals with the following skills:

  1. Knowledge of multiculturalism and a broad historical perspective of social development in which to empower individuals with diverse perspectives.
  2. Able to comprehend and relate to the code of ethics provided to assist engineers to perform under a standard of professional behavior, to adhere to a clearly defined engineering ethical duty. Also, able to make a value judgment based on ethical perspectives in the course of practical implementation.
  3. Fully exploit mathematics, natural sciences, and information sourcing skills as a language/tool for problem solving.
  4. Applying ones abilities to find solutions to social needs by adopting electrical engineering and other related engineering technologies.
  5. To understand social needs and be able to define technological issues using ones own initiatives, and by applying expertise knowledge to design, analyze, manufacture, evaluate, and solve problems.
  6. Requisite communication skills for a global society.
  7. A persistent dedication to learn and independently address the important issues and thereby strengthen ones inquisitive nature.
  8. To clearly identify problems with given restrictions, draft potential plans and progress the work as planned, and also maintain a portfolio or findings or results.
  9. Recognizing ones own responsibility within a team, to mutually understand and advance work efficiently. Self-awareness and self-recognition on reflection.

The rapid progress of recent scientific and technological developments continues to show the aspects that create a true advanced information society, and those horizons are increasingly widening in the required academic fields related to electricity as well as in the structural reforms of the industrial world as it becomes more high tech. This means that we now need to learn about a range of skills, from cognitive processes based around thorough analytical approaches to the objective physical phenomena of the natural world, to studying methods for the synthesis of fields by creating a new system that combines a number of well-known facts or phenomena.
The Department of Electrical Engineering is built around the principal pillars of “Energy and Control,” which supports society, and “Hands-on Technology,” which provide ideas to society as specific forms. We aim to foster technicians with a rich humanism who can play their roles actively and respond promptly to the structural changes in the industrial world and the progress of technology as we become increasingly high-tech and advanced, and train richly creative engineers who can play major roles in society through a mastery of basic academic abilities and have a wealth of education and broad perspectives.
Below are what we expect from new students in the Department of Electrical Engineering. Anyone meeting any of these is welcome to join us.

  1. People who spent a meaningful time in high school, working steadily each day with an awareness of their goals, bettering themselves through daily study, in order to foster a rich humanity and a broad perspective while at school.
  2. People who have an interest in engineering and technology, actively and independently learn new things, and who spend their high school years following their own ideas rather than copying others.
  3. People who have an interest in the various problems that human race faces, such as new energy and environmental harmony, and want to solve these problems in the future through learning electrical engineering.
  4. People who have an interest in the fields covered by electrical engineering, such as electrical power and energy, electrical materials and devices, and system control and robotics and who want to work with ambition and passion.

Electrical engineering is fundamental technology to all types of industries. Therefore, the curriculum in this department is designed to facilitate the students to work proactively in an array of electric-related fields after their graduation. The graduates are highly sought for their contributions in a number of electric industries including home appliances, automobiles, electric manufacturers, and power utilities.