Mingyun Chen

Title: Innovations by Inventor Mingyun Chen

Introduction

Mingyun Chen is a notable inventor based in Hubei, China. He has made significant contributions to the field of power electronics, particularly in diagnosing faults in inverters and rectifiers. With a total of four patents to his name, Chen's work is characterized by innovative methods that enhance the reliability and efficiency of power electronic systems.

Latest Patents

One of his latest patents is titled "Method and system for diagnosing open circuit (OC) fault of T-type three-level (T3L) inverter under multiple power factors." This invention provides a method and system for diagnosing an OC fault of an insulated gate bipolar transistor (IGBT) in a T3L inverter. The method is based on instantaneous current distortion, which can complicate fault location due to similar characteristics caused by OC faults. The diagnosis is achieved hierarchically, allowing for effective fault identification without the need for additional hardware circuits.

Another significant patent is the "Method and system for diagnosing open-circuit fault of power switching device of three-phase three-level rectifier." This invention focuses on identifying and locating open-circuit faults in power switching devices. It utilizes a deviation between expected and actual phase-to-phase voltage as a diagnosis variable, ensuring accuracy while minimizing calculation errors. The method requires only existing voltage current signals, making it a cost-effective solution for fault diagnosis.

Career Highlights

Mingyun Chen is affiliated with Wuhan University, where he continues to advance research in power electronics. His work has garnered attention for its practical applications and innovative approaches to fault diagnosis in complex electronic systems.

Collaborations

Chen has collaborated with notable colleagues, including Yigang He and Chunsong Sui. Their combined expertise contributes to the advancement of research in the field of power electronics.

Conclusion

Mingyun Chen's contributions to the field of power electronics through his innovative patents demonstrate his commitment to enhancing the reliability of electronic systems. His work not only addresses current challenges but also paves the way for future advancements in fault diagnosis technology.