Chang Liu

Title: Chang Liu: Inventor in Underwater Vehicle Power and Drive Systems.

Introduction

Chang Liu is an inventor based in Zhuzhou, China. His work includes a patent for a power distribution and drive system designed for a remotely operated underwater vehicle (ROV). He is associated with Zhuzhou CRRC Times Electric Co., Ltd.

Latest Patents

Liu is credited with 1 patent: “Power Distribution and Driving System for Remotely Underwater Operated Vehicle.” The invention describes a system that supplies power to an ROV using a high-voltage DC source located above the water and connected to the vehicle by cable. A DC buck conversion device converts the high-voltage supply into low-voltage DC power. It uses multiple parallel conversion modules that share the load current. The system also includes at least one thruster, comprising a propeller, synchronous motor, and driver.

Career Highlights

Liu’s patent focuses on power delivery and propulsion for remotely operated underwater vehicles. Its design combines voltage conversion with parallel modules to distribute the electrical load, alongside components for vehicle thrust.

Collaborations

Liu’s listed coworkers include Kean Liu and Dinghua Zhang. His association with Zhuzhou CRRC Times Electric Co., Ltd. places his work within a company involved in developing electrical and drive technologies.

Conclusion

Chang Liu’s patent documents an approach to powering and propelling remotely operated underwater vehicles, combining high-voltage transmission, modular DC conversion, and thruster components.