Company Filing History:
2 out of 8 
1 out of 2 Years Active: 2017-2019
Title: **Inventor Lei Xiao: Innovator in Permanent Magnet Synchronous Motor Technology**
Introduction
Lei Xiao, an inventive mind hailing from Hunan, China, has made significant contributions to the field of electrical engineering, particularly in permanent magnet synchronous motor (PMSM) technology. With a total of three patents to his name, Lei's work embodies the essence of innovation in enhancing motor efficiency and functionality.
Latest Patents
Lei Xiao's latest patents demonstrate his deep understanding and expertise in PMSM technology. The first patent, titled "Rotor temperature monitoring method and system for permanent magnet synchronous motor," presents a sophisticated approach to monitoring rotor temperature by analyzing a-phase and b-phase line currents. This method utilizes critical parameters such as line voltage and rotor speed to calculate the rotor's temperature, ensuring efficient motor operation.
The second patent, "Control method for restarting permanent magnet synchronous motor with speed, device and system thereof," focuses on enhancing the reliability of PMSM during the restart process. It introduces a novel method that compares the back electromotive force of the PMSM with the inverter's voltage to determine the appropriate conditions for restarting the motor, taking into account the rotor's position angle and operational speed.
Career Highlights
Throughout his career, Lei Xiao has been associated with esteemed institutions such as the CRRC Zhuzhou Electric Locomotive Research Institute Co., Ltd., and the CSR Zhuzhou Electric Locomotive Research Institute Co., Ltd. His roles in these companies have allowed him to collaborate on cutting-edge projects that advance electric locomotive technology and PMSMs.
Collaborations
Lei has worked alongside talented colleagues, including Jianghua Feng and Junfeng Xu. Their collaborative efforts have undoubtedly contributed to the success and innovation reflected in his patents, highlighting the importance of teamwork in the field of engineering.
Conclusion
In conclusion, Lei Xiao’s innovative work in the field of permanent magnet synchronous motors showcases his ability to tackle complex challenges in electrical engineering. With three impactful patents, he continues to pave the way for advancements in motor technology, contributing to more efficient and reliable systems. His dedication and expertise position him as a notable inventor in the industry.
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