Seok-hee Han

Title: Innovations of Seok-hee Han

Introduction

Seok-hee Han is a notable inventor based in Dunlap, IL (US), recognized for his contributions to electrical engineering and power systems. With a total of 10 patents to his name, Han has made significant advancements in the field, particularly in voltage source inverters and power management techniques.

Latest Patents

One of Han's latest patents is titled "Voltage source inverter control for unbalanced and nonlinear loads." This invention describes an interface circuit designed to connect an energy source to a power bus of a microgrid. It includes a switching inverter circuit, an output filter circuit, and a control circuit loop that manages the switching of the inverter. The control loop utilizes a proportional-integral oscillator-based repetitive (PIOR) controller to enhance performance.

Another significant patent is "Techniques for limiting power using an active front end." This invention outlines methods to restrict electrical power when forming an electrical grid with an active front end unit. The unit features an inverter connected to a capacitor and inductor, which are in turn linked to the electrical grid. The techniques involve limiting the integration of a commanded frequency to stay within a specified phase delta of a measured phase angle of the grid voltage vector.

Career Highlights

Throughout his career, Seok-hee Han has worked with prominent companies such as Caterpillar Inc. and the Wisconsin Alumni Research Foundation. His experience in these organizations has contributed to his expertise in developing innovative solutions in power systems.

Collaborations

Han has collaborated with several professionals in his field, including Jackson Wai and Jesse R Gerdes. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas.

Conclusion

Seok-hee Han's contributions to electrical engineering through his patents and collaborations highlight his role as a significant inventor in the industry. His work continues to influence advancements in power management and inverter technology.