Company Filing History:
Years Active: 2017
Title: Jin Su Lee - Innovator in Grid-Connected Inverter Technology
Introduction
Jin Su Lee is a notable inventor based in Pohang-si, South Korea. He has made significant contributions to the field of grid-connected inverter technology, holding 2 patents that address critical issues in this area. His work focuses on enhancing the reliability and efficiency of grid-connected systems.
Latest Patents
One of Jin Su Lee's latest patents is titled "Apparatus and method for protecting grid-connected inverter from occurrence of low grid voltage." This invention includes a first output current sensor that senses the output current of a grid-connected inverter. It also features a first output current calculator that calculates D-axis and Q-axis currents to obtain the sensed output current. Additionally, a first output current controller determines whether the difference between the output current and a reference current exceeds a predetermined range, allowing for a decrease in output current when necessary.
Another significant patent is "Apparatus and method for controlling overcurrent of grid-connected inverter due to abnormal grid voltage." This apparatus includes a grid voltage sensor that senses grid voltage based on the output current of the inverter. It also has a voltage variation calculator that computes D-axis and Q-axis voltage variations. The output current controller assesses whether these variations exceed a set value, enabling a decrease in output current when required.
Career Highlights
Jin Su Lee has worked with prominent companies in the energy sector, including Posco Energy, Ltd. and Posco Energy Co., Ltd. His experience in these organizations has allowed him to develop and refine his innovative ideas in grid-connected inverter technology.
Collaborations
Throughout his career, Jin Su Lee has collaborated with talented individuals such as Jeong Heum Lee and Sang Ho Moon. These partnerships have contributed to the advancement of his projects and innovations.
Conclusion
Jin Su Lee is a distinguished inventor whose work in grid-connected inverter technology has led to valuable patents that enhance system reliability. His contributions continue to impact the field positively.