Company Filing History:
Years Active: 2017-2019
Title: Edwin Shires: Innovator in Uninterruptible Power Supply Systems
Introduction
Edwin Shires is a notable inventor based in Powell, OH (US). He has made significant contributions to the field of uninterruptible power supply (UPS) systems, holding 2 patents that showcase his innovative approach to power management.
Latest Patents
Shires' latest patents include a 3-wire transformer-free UPS system and a method of control to reduce common mode current. The first patent addresses the elimination of a common mode choke in a 3-wire transformer-free UPS system by utilizing different types of PWM control. This control varies depending on whether the inverter is paralleled with the bypass power source. When paralleled, a PWM control type is employed that avoids common mode voltage injection. Conversely, when not paralleled, a PWM control type that includes common mode voltage injection is used. Specifically, the PWM control without common mode voltage injection is sine-triangle PWM, while the one with common mode voltage injection is space-vector PWM.
The second patent focuses on a method of controlling an uninterruptible power supply to clear a shorted load. This system features a three-level T-Type inverter. The method enhances the clearing of a load short-circuit event by commutating each phase of the inverter in a two-level mode when the output voltage and current align. In contrast, it switches to a three-level mode when the output voltage and current are in opposite directions.
Career Highlights
Throughout his career, Edwin Shires has worked with prominent companies such as Vertiv Corporation and Vertiv S.r.l. His experience in these organizations has allowed him to refine his expertise in power supply technologies.
Collaborations
Shires has collaborated with notable professionals in his field, including Terry Dwane Bush and Brian Paul Heber. These collaborations have contributed to the advancement of his innovative projects.
Conclusion
Edwin Shires stands out as a significant figure in the development of uninterruptible power supply systems. His patents reflect a deep understanding of power management and control, marking him as an influential inventor in the industry.