Xinglong Sun

Title: Innovations by Xinglong Sun in Position-Sensorless Control Methods

Introduction

Xinglong Sun is a notable inventor based in Tianjin, China. He has made significant contributions to the field of motor control technology. His innovative work focuses on enhancing the efficiency and functionality of permanent magnet motors.

Latest Patents

Xinglong Sun holds a patent for a "Position-sensorless control method and device for long-cable drive permanent magnet motor." This invention involves a sophisticated method that eliminates the need for position sensors in motor control. The method includes adding a coupling circuit after boost transformers in the long-cable drive circuit of a permanent magnet motor. It couples three high-frequency detection signals with different frequencies into a power supply cable and the motor's windings through three coupling transformers. The invention utilizes bandpass filters to obtain high-frequency voltage components on the primary windings of the coupling transformers. By analyzing the effective values of these voltage components, the position signals are derived, allowing for position-sensorless control of the motor by a controller.

Career Highlights

Xinglong Sun is affiliated with Tiangong University, where he continues to advance his research and development efforts. His work has garnered attention for its innovative approach to motor control, which has implications for various applications in engineering and technology.

Collaborations

Xinglong Sun collaborates with colleagues such as Xin Li and Xinmin Li, contributing to a dynamic research environment that fosters innovation and technological advancement.

Conclusion

Xinglong Sun's contributions to position-sensorless control methods represent a significant advancement in motor technology. His innovative patent showcases the potential for improved efficiency in permanent magnet motors.