Narazaki Kazushige

About

Narazaki Kazushige is a pioneering researcher in the design and control of electric motor systems, with a particular focus on interior permanent magnet (IPM) synchronous motors and advanced control theory. His major contributions lie in optimizing the multilayer structure of IPM motors to maximize reluctance torque—a key factor in improving efficiency and power density for modern electric drives. Through a combination of finite element method (FEM) simulations and experimental validation with prototype motors, he demonstrated how careful design of rotor layers can significantly enhance motor performance under inverter drive conditions. His foundational work on this topic, published in 1997 and 1999, has been cited over 11 times collectively, establishing a basis for subsequent advancements in high-torque, energy-efficient motor design. Beyond motor design, Narazaki contributed to control systems by developing the Time Delay Controller (TDC) for single-input-single-output linear systems. This innovative method, which handles unknown dynamics with simple algorithms and fast response, was validated on robot manipulators and heat pump systems, earning recognition for its practical applicability. His interdisciplinary work bridges electromechanical design and control theory, offering valuable insights for students and engineers advancing electric propulsion and automation.

Research Focus

Key Achievements

Top Papers

1. 1
   Optimum design of a multi layer interior permanent magnet synchronous motor using reluctance torque

   6 citations · 1997
2. 2
   Optimum design of a multilayer interior permanent magnet synchronous motor using reluctance torque

   5 citations · 1999
3. 3
   Design of the Time Delay Controller for Single-Input-Single-Output Linear Systems

   3 citations · 1990

Key Collaborators

Contact & Links