Hunan, China

Qianyi Liu

This inventor holds 2 USPTO granted patents. Top assignee: Hunan University. Active years: 2018-2023.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Qianyi Liu. Retrieved from https://idiyas.com/inventor/qianyi-liu-5ze2q5w5

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 5.0

ph-index = 1

Forward Citations = 2(Granted Patents)


Company Filing History:


Years Active: 2018-2023

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2 patents (USPTO):Explore Patents

Title: Innovations of Qianyi Liu in Inductive Power Filtering Systems

Introduction

Qianyi Liu is a notable inventor based in Hunan, China. He has made significant contributions to the field of inductive power filtering systems, holding 2 patents that showcase his innovative approach to transformer design and control methods.

Latest Patents

One of his latest patents is the "Compact design method for inductive filtering transformer." This invention focuses on a compact design that utilizes an approximative zero-impedance approach while ensuring optimal filtering performance. The primary goal is to minimize the distance from the transformer core center to the outermost winding, balancing winding impedance matching with transformer size optimization. This design is particularly beneficial for applications with limited installation space.

Another significant patent is the "Virtual impedance comprehensive control method for inductive power filtering system." This method addresses the challenges of harmonic damping control at the grid side and zero impedance control of filters. By combining these two aspects, Liu's invention resolves performance issues in passive filtering equipment caused by changes in impedance parameters within power grid systems. Additionally, it allows for optimization control over the quality factor of passive filtering equipment, enhancing overall filtering characteristics.

Career Highlights

Qianyi Liu is affiliated with Hunan University, where he continues to advance research in electrical engineering and power systems. His work has garnered attention for its practical applications and innovative solutions to complex problems in the field.

Collaborations

Liu collaborates with talented individuals such as Yong Li and Sijia Hu, who contribute to his research endeavors. Their combined expertise fosters a productive environment for innovation and development in inductive power filtering technologies.

Conclusion

Qianyi Liu's contributions to inductive power filtering systems through his patents reflect his commitment to innovation and excellence in engineering. His work not only addresses existing challenges but also paves the way for future advancements in the field.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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