Jianfeng Mao

Title: Innovations of Jianfeng Mao in Sensorless Control Methods

Introduction

Jianfeng Mao is a notable inventor based in Zhejiang, China. He has made significant contributions to the field of motor control technology, particularly through his innovative approaches to sensorless control methods for permanent magnet synchronous motors (PMSM). His work is characterized by a focus on improving the efficiency and effectiveness of motor control systems.

Latest Patents

Jianfeng Mao holds a patent for a "Sensorless control method of permanent magnet synchronous motor." This invention presents a sensorless control method and a system for PMSM based on the Luenberger observer. The system comprises a power supply circuit, a sampling circuit, a main control circuit, and a drive circuit. The power supply circuit provides power to the other circuits, while the sampling circuit is responsible for obtaining the three-phase current of the motor. The main control circuit outputs control signals to the drive circuit to operate the PMSM. This invention utilizes an improved method for selecting the feedback coefficient of the Luenberger observer, making the selection process more convenient and effective. Additionally, it allows for the global selection of optimal parameters, leading to adaptive adjustments of feedback coefficients for enhanced observer performance, especially when the rotational speed affects the position of the observer's pole.

Career Highlights

Jianfeng Mao is affiliated with Zhejiang University, where he continues to engage in research and development in the field of motor control technologies. His work has garnered attention for its practical applications and innovative methodologies.

Collaborations

Jianfeng has collaborated with notable colleagues, including Yinghao Hu and Hongjin Chen, contributing to advancements in their shared field of expertise.

Conclusion

Jianfeng Mao's contributions to sensorless control methods for permanent magnet synchronous motors exemplify the innovative spirit of modern engineering. His work not only enhances motor control systems but also paves the way for future advancements in the field.