Vietnamese scientist was first honored by Japan in the field of electric motors

Prof. Dr. Ta Cao Minh, Hanoi University of Technology, will receive the prestigious Nagamori Prize of Japan for his contributions in the field of electric motor research.

The research works of Associate Prof. Dr. Ta Cao Minh was sent to the Organizing Committee at the end of January and 4 months later, he received the notice of winning Nagamori Prize with 7 other scientists, including 6 in Japan and one in Thailand. .

"The award is very important for me, because it is the recognition and evaluation of the 30-year working process since graduating from university to now," Associate Professor Minh said and said the award ceremony will held in Kyoto on September 3.

The research of the PGS Minh Award is the work on controlling and improving the quality and performance of power transmission systems using electric motors, especially the results of the working time in Japan are being applied. Widely used in the automotive industry.

Prof. Dr. Ta Quang Minh.(Photo: Hanoi University of Technology).

Dr. Minh defended the topic "Controlling the number of fuzzy logic asynchronous motors' in late 1997 at Laval University, Canada. The topic used fuzzy logic in control and parameter estimation to improve the quality of transmission systems. Asynchronous motor, engine type which is difficult to control with high quality.

In 1998, when he went to Japan to work in the Department of Electrical and Electronic Engineering (Kyushu University), Dr. Minh carried out the topic of wireless elevator control using permanent magnet synchronous motor (permanent magnet synchronous linear motor ). The magnetic field control allows lifting and lowering the elevator without using a zipper.

This has important implications for skyscrapers, when the cable weight becomes very large. The experimental system (4m high elevator model) was installed a few years earlier and not yet operated, but after 6 months, Dr. Minh successfully controlled it. Vietnamese scientist also solved a difficult problem of controlling motion for elevator drive system as sustainability under the influence of load disturbance. His name is currently saved in the yearbook of Kyushu University as an outstanding foreign scientist who worked at the school.

After that, Dr. Minh continuously demonstrated his ability in the field of electric motors. The research phase at Tokyo University is marked by two major projects: Optimal control of asynchronous electric motor performance using "golden ratio" and Control of motor without speed sensor (sensorless control) ). The optimal performance was awarded the second prize of the Power Transmission Division after the IEEE International Conference on Energy in Italy in 2000 for efficiency and energy savings.

In the course of working at the Research and Development Department, NSK, Dr. Minh introduced pseudo vector control (PVC) control methods for BLDC brushless DC motors - motor type has a square current. PVC method allows turning square electric current into a trapezoidal form, thus minimizing undulating tissue originating from instant switching.

The method is very important for applications with high quality requirements, such as the steering wheel power assist system using electric motors. As a result, this type of motor can achieve the same quality as a sinusoidal AC motor, which is a higher cost engine. The techniques for implementing the invention have been registered into 14 inventions in Japan. These inventions continue to be registered in the US, Europe, where the automobile industry develops.

In 2004, Dr. Minh returned to Vietnam to teach at the Department of Industrial Automation (Hanoi Institute of Electrical Engineering, Hanoi University of Technology) and since 2009, he has been Director of Applied Research and Technology Innovation Center. school. The State-level project "The research on designing and manufacturing electric drive and control systems for electric cars", which he has been successfully assigned, has been successfully accepted at the end of 2015, as a premise for further research on electric vehicles at Vietnam.

Nagamori is the founder, chairman and CEO of Japan's Nidec Group, one of the world's leading manufacturers of electric motors. The award not only honors outstanding scientists in Japan but also in the world in the field of designing and controlling electric motors, related technologies, solving major problems such as quality assurance. living and protecting the global environment.

The Nagamori Foundation was founded in 2014 and the award started in 2015. The first year the award was given to 3 Japanese scientists and 3 Austrian, Taiwanese and Swiss scientists. In 2016, there were 5 Japanese scientists and a Dutch scientist (Russian origin) awarded the prize.