Company Filing History:
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Years Active: 2013-2024
Title: Innovations of Wuhua Li: A Pioneer in DC Islanding Detection
Introduction
Wuhua Li is a notable inventor based in Hangzhou, China, recognized for his contributions to the field of electrical engineering. He holds a total of seven patents, showcasing his innovative approach to technology and power management systems. His work primarily focuses on methods for enhancing the stability and efficiency of direct current (DC) grids.
Latest Patents
One of Wuhua Li's latest patents is a "Method for DC islanding detection based on positive feedback of bus voltage at specific frequency." This method involves three key steps: extracting a specific frequency component of the bus voltage, injecting a disturbance component of that frequency, and determining DC islanding. The positive feedback mechanism he developed allows for self-excited oscillation of the bus voltage in islanding mode, enhancing the reliability of power management units.
Another significant patent is the "Resonance control method for differentiated phase correction." This method addresses the challenges of asymmetric positive and negative bilateral frequency domains. It includes a differentiated phase correction resonance control link, a decoupling link, and a delay compensation link. This innovative approach improves the stability margin of control links while effectively suppressing negative-sequence currents.
Career Highlights
Wuhua Li has had a distinguished career, working with prominent institutions such as Zhejiang University and Silergy Semiconductor Technology (Hangzhou) Ltd. His experience in these organizations has allowed him to develop and refine his innovative ideas, contributing significantly to advancements in power management technologies.
Collaborations
Throughout his career, Wuhua Li has collaborated with esteemed colleagues, including Chushan Li and Xiangning He. These partnerships have fostered a collaborative environment that encourages the exchange of ideas and the development of groundbreaking technologies.
Conclusion
Wuhua Li's contributions to the field of electrical engineering, particularly in DC islanding detection and resonance control methods, highlight his innovative spirit and dedication to advancing technology. His work continues to influence the industry and pave the way for future innovations.