Geoffrey M Smith

Title: Innovations of Geoffrey M Smith

Introduction

Geoffrey M Smith is a notable inventor based in Reisterstown, Maryland, who has made significant contributions to the field of electrical engineering. With a total of five patents to his name, Smith has developed innovative solutions that address complex challenges in power supply and motor control.

Latest Patents

One of Smith's latest patents is the "Unrestricted frequency converter for unbalanced loads." This invention involves a current-fed unrestricted frequency converter (UFC) designed to supply power with balanced voltages to a three-phase unbalanced load. The UFC generates two sets of existence functions for controlling its switching matrices, allowing it to produce positive and negative sequence current components in the load. The existence function generators are phase-locked to reference signals, ensuring that the negative sequence voltage in the load is driven to zero. Additionally, a neutral forming transformer is employed to eliminate any zero sequence voltage, resulting in balanced positive sequence components.

Another significant patent is the "Torque angle and peak current detector for synchronous motors." This device utilizes a phase-locked loop to generate a digital stator field position signal that is phase-locked to the stator current. By comparing the phases of digital sine and cosine reference signals with stator current component signals, the system generates a phase error signal that is minimized at phase lock. The invention also includes a method for generating a peak current signal and a torque angle signal, enhancing the performance of three-phase synchronous motors.

Career Highlights

Geoffrey M Smith is currently employed at Westinghouse Electric Corporation, where he continues to innovate and contribute to advancements in electrical engineering. His work has had a profound impact on the efficiency and reliability of power systems.

Collaborations

Smith has collaborated with notable colleagues, including Eric J Stacey and Laszlo Gyugyi, who have also made significant contributions to the field.

Conclusion

Geoffrey M Smith's innovative patents and contributions to electrical engineering demonstrate his commitment to advancing technology in power supply and motor control. His work continues to influence the industry and inspire future innovations.