This inventor holds 2 USPTO granted patents. Top assignees: Abb Power Td & Company, Asea Brown Boveri Ab. Active years: 1998.
Company Filing History:
Years Active: 1998
Title: Hisham A Othman: Innovator in Power Quality Solutions
Introduction
Hisham A Othman is a notable inventor based in Cary, NC (US). He has made significant contributions to the field of power quality through his innovative patents. With a total of 2 patents, Othman has focused on addressing critical issues in power distribution circuits.
Latest Patents
Othman's latest patents include advancements in flicker controllers using voltage source converters. Voltage flicker is a power quality problem caused by fluctuating loads such as AC and DC electric arc furnaces and large AC motors. His invention utilizes converters based on Voltage Source technology (VSC) to reduce voltage flicker levels effectively. The flicker control systems he developed respond to both active and reactive power components, employing methods like H-infinity and Linear Quadratic Gaussian for optimal performance.
Another significant patent is the thyristor-controlled series capacitor triggering system. This system enhances the stability of power systems by diminishing power swing oscillations and subsynchronous resonance oscillations. The control system includes various components such as a stabilizer circuit and a phase-locked loop, which work together to trigger the thyristor unit efficiently.
Career Highlights
Throughout his career, Hisham A Othman has worked with prominent companies in the power industry, including ABB Power T&D Company and Asea Brown Boveri. His experience in these organizations has contributed to his expertise in power quality solutions.
Collaborations
Othman has collaborated with notable professionals in his field, including Kevin J Timko and Rajkumar Vedam. These collaborations have further enriched his work and innovations.
Conclusion
Hisham A Othman is a distinguished inventor whose work in power quality solutions has made a significant impact on the industry. His innovative patents address critical challenges in power distribution, showcasing his expertise and dedication to improving power systems.