Wook Hwa Lee

Title: Wook Hwa Lee: Innovator in High Voltage Direct Current Systems

Introduction

Wook Hwa Lee is a prominent inventor based in Incheon-si, South Korea. He has made significant contributions to the field of electrical engineering, particularly in high voltage direct current (HVDC) systems. With a total of five patents to his name, Lee's work focuses on enhancing the efficiency and reliability of electrical systems.

Latest Patents

One of Lee's latest patents is a "Test circuit for thyristor valve in HVDC system." This invention provides a synthetic test circuit designed for testing a thyristor valve in high voltage direct current applications. The circuit utilizes a resonant configuration to apply forward DC current, reverse DC voltage, and forward DC voltage to effectively test the thyristor valve. Additionally, a current generation unit is incorporated to supply DC current above a reference value, ensuring thorough testing of the valve's performance.

Another notable patent is the "Method for controlling multilevel converter." This method involves detecting modulation state values and current directions of sub-modules within a multilevel converter. It designates an average number of switchings for each output waveform period, optimizing the performance of the converter by managing the states of the sub-modules effectively.

Career Highlights

Wook Hwa Lee has worked with reputable organizations, including Lsis Co., Ltd. and Yonsei University. His experience in these institutions has allowed him to collaborate on various innovative projects, furthering advancements in electrical engineering.

Collaborations

Throughout his career, Lee has collaborated with notable colleagues such as Seung Taek Baek and Yong Ho Chung. These partnerships have contributed to the development of cutting-edge technologies in the field.

Conclusion

Wook Hwa Lee is a distinguished inventor whose work in high voltage direct current systems has led to significant advancements in electrical engineering. His innovative patents and collaborations reflect his commitment to enhancing the efficiency and reliability of electrical systems.