Masashi Takiguchi

Title: Masashi Takiguchi: Innovator in Power Conversion Systems

Introduction

Masashi Takiguchi is a prominent inventor based in Fuji, Japan. He has made significant contributions to the field of power conversion systems, holding a total of 5 patents. His innovative work focuses on enhancing the efficiency and control of power converters.

Latest Patents

Takiguchi's latest patents include a "Power conversion system and method for controlling power conversion system." This invention involves a higher control unit that generates a command current based on a command value. A model predictive control unit sets multiple assumed voltage vectors for each switching cycle of an output voltage. It divides the switching cycle into two periods according to a ratio between a dead time and the switching cycle, calculates a predicted current for each period, and determines the best command voltage vector based on an evaluation function. The power converter is then driven and controlled using a gate signal derived from this command voltage vector.

Another notable patent is the "Power converter control system using fixed pulse pattern, and control method." This invention determines the minimum number of levels required to output a target modulation ratio. It compares this number with the total voltage orders to be controlled, fixing the larger one as the number of switching times in a quarter cycle. The output voltage shape is determined based on the target modulation ratio, leading to the derivation of a pulse pattern for one cycle.

Career Highlights

Throughout his career, Masashi Takiguchi has worked with notable companies such as Meidensha Corporation and Sony Corporation. His experience in these organizations has contributed to his expertise in power conversion technologies.

Collaborations

Takiguchi has collaborated with esteemed colleagues, including Ryuichi Ogawa and Osamu Shimizu. Their joint efforts have further advanced the field of power conversion systems.

Conclusion

Masashi Takiguchi's innovative contributions to power conversion systems demonstrate his expertise and commitment to advancing technology. His patents reflect a deep understanding of control methods and efficiency in power converters.