Thomas J Sheahan

Title: Innovations of Thomas J Sheahan

Introduction

Thomas J Sheahan is a notable inventor based in Cary, IL, with a remarkable portfolio of 13 patents. His work primarily focuses on optimizing electric motor performance, showcasing his expertise in the field of electrical engineering.

Latest Patents

One of his latest patents is a system and method for optimizing flux regulation in electric motors. This innovative system dynamically adjusts flux levels based on estimated torque, utilizing motor parameters and equations to estimate operating characteristics. It sets current and voltage limits that define an optimal flux operating range for specific motor speeds and torque. The invention determines a slope of linear flux gain within the defined operating range at various speeds. These slopes are stored in a memory element, allowing a control element to access them. By identifying the specific slope corresponding to the motor's actual speed, the system multiplies the slope by the estimated torque and adds an offset value to determine the phase current component value associated with the optimal flux level. This value is then applied to the motor, enhancing its efficiency and performance.

Career Highlights

Throughout his career, Thomas has worked with prominent companies such as Nidec Motor Corporation and Emerson Electric Company. His contributions to these organizations have significantly advanced electric motor technology and optimization.

Collaborations

Thomas has collaborated with talented individuals in the industry, including Darko Marcetic and Michael P Sullivan. These partnerships have fostered innovation and development in his projects.

Conclusion

Thomas J Sheahan's contributions to electric motor optimization through his patents and collaborations highlight his significant impact on the field of electrical engineering. His innovative approaches continue to influence the industry and improve motor performance.