Company Filing History:
1 out of 832,912 Years Active: 2022
Title: Innovations by Fengmei Cao in VSC-HVDC Systems
Introduction
Fengmei Cao is an accomplished inventor based in Beijing, China. He has made significant contributions to the field of electrical engineering, particularly in the area of Voltage Source Converter-High Voltage Direct Current (VSC-HVDC) systems. His innovative approach addresses critical challenges in power transmission and control.
Latest Patents
Fengmei Cao holds a patent for a "Suppression method of high-frequency resonance for VSC-HVDC system based on nonlinear filter in voltage feed-forward control." This invention utilizes a nonlinear filter in the voltage feed-forward link of the current inner loop control. The method involves extracting each sequence component of the AC voltage, calculating the average value at N sample points, and comparing it with the previous output of the nonlinear filter. This process results in a fixed value that varies according to a gradient, effectively suppressing high-frequency resonance without compromising the system's rapidity. The invention also adapts to AC voltage disturbances, reducing the risk of over-current in the converter valve. Notably, it can be implemented in existing secondary control software without the need for additional equipment, making it a cost-effective solution.
Career Highlights
Fengmei Cao's career is marked by his dedication to advancing VSC-HVDC technology. His innovative methods have the potential to enhance the reliability and efficiency of power systems. His work is recognized for its practical applications in engineering, contributing to safer and more efficient energy transmission.
Collaborations
Fengmei Cao collaborates with talented individuals in his field, including Yu Wang and Shu Hua Liu. Their combined expertise fosters a collaborative environment that drives innovation and research in electrical engineering.
Conclusion
Fengmei Cao's contributions to VSC-HVDC systems exemplify the impact of innovative thinking in engineering. His patent addresses significant challenges in power transmission, showcasing the importance of research and development in creating efficient solutions.