Pinjia Zhang

Title: The Innovations of Pinjia Zhang

Introduction

Pinjia Zhang is a notable inventor based in Atlanta, GA (US), recognized for his contributions to the field of electrical engineering. He holds a total of 4 patents, showcasing his expertise and innovative spirit in developing advanced systems for AC machines.

Latest Patents

One of his latest patents is titled "System and method for detecting fault in an AC machine." This invention discloses a system that includes a processor programmed to receive voltage and current data from an AC induction machine. It generates a current frequency spectrum from the current data and identifies rotor-fault related harmonics. The processor calculates a fault severity indicator and analyzes it to determine the possibility of rotor fault, generating alerts based on this analysis.

Another significant patent is "System and method for determining stator winding resistance in an AC motor using motor drives." This system includes an AC motor drive connected to an AC source and an output connected to an AC motor. It features a pulse width modulation (PWM) converter that controls current flow and terminal voltages. The control system generates command signals to determine the stator winding resistance based on the DC signal of voltage and current.

Career Highlights

Pinjia Zhang is currently employed at Eaton Corporation, where he applies his innovative ideas to enhance electrical systems. His work focuses on improving the reliability and efficiency of AC machines, contributing to advancements in the industry.

Collaborations

He collaborates with esteemed colleagues such as Bin Lu and Thomas G Habetler, who share his passion for innovation in electrical engineering.

Conclusion

Pinjia Zhang's contributions to the field of electrical engineering through his patents and work at Eaton Corporation highlight his role as a significant inventor. His innovative systems for AC machines demonstrate his commitment to advancing technology and improving machine reliability.