博士論文 Doctoral Dissertation 電気自動車の走行中ワイヤレス給電における 制御設計とシステム構築に関する研究 Study on Control Design and System Implementation for In-motion Wireless Charging of Electric Vehicles-------東京大学大学院 工学系研究科 電気系工学専攻 Department of Electrical Engineering, Graduate School of Engineering, The University of Tokyo

 

OVERVIEW

This paper is about wireless power transfer technology that charges electric vehicles while they are running. The system is now stuck with the stationary wireless power supply system, which previously stopped and slowly charged the vehicle. Concerning control design and system construction based on a new perspective that focuses on very different dynamic characteristics. The aim is to establish technology that will The practical application of wireless power transfer technology while driving will accelerate the spread of electric vehicles. It could become a ground-breaking technology that will give a strong boost and bring about a paradigm shift in the current automobile society. This paper In this section, we will discuss the issues required for wireless power transfer technology while driving, and provide clear solutions for these issues. We will present our approach and clarify the effectiveness of these approaches through demonstration experiments. In addition, control design By presenting the knowledge obtained in the form of system construction, we cover a wide range of topics from theory to application. We hope that this paper will make a major contribution to society or be a step toward popularization. The content and structure of this paper are shown below. Chapter 1 deals with the electrification of cars towards a decarbonized society, and discusses current high-performance batteries and Rather than research and development with fast charging as the key technology, we are developing a new vehicle based on motors, capacitors, and wireless technology. Show about Ma society. Here, cars of the future will be powered by highly responsive electric motors rather than engines. Fast charging, using long-life, high-power capacitors instead of lithium-ion batteries. Instead, wireless power supply, which charges slowly while running, plays a major role. wireless power transfer If infrastructure and cars are connected by technology, the cruising range on a single charge, which is tied to battery performance, will lose meaning. The convenience of electric cars will improve dramatically. On the other hand, energy storage devices that require frequent charging and discharging The chair has the advantage of using physical battery capacitors rather than chemical batteries, which have a short lifespan. However, all Since it is difficult to electrify roads, it is not possible to save enough energy to get from the main road to your home. Large capacity capacitors such as electric double layer capacitors are suitable. Finally, the electric motor Advanced motion control realizes safe and eco-friendly driving, and this technology has produced many results in our laboratory. It is proven. Therefore, in order to create this new car society, wireless power transfer technology is essential. It is essential to establish wireless charging while stationary, and what is particularly important here is wireless charging while stationary, which replaces quick charging. This technology is not a wireless power transfer technology that connects a moving vehicle to infrastructure. Na Oh, you can only receive power from one power transmitter for a few seconds to a few tens of seconds at most while driving on a highway. When driving at high speeds, power cannot be received for even a few seconds, so control on the order of milliseconds must be achieved. stomach. The essence of the technology for wireless power transfer while driving is to realize this instantaneous power transfer. It also makes clear that there are many issues that need to be resolved. In this paper, we will address the issues presented in Chapter 1. Each chapter presents a clear approach. ​

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