Qian Chang

Title: Qian Chang - Innovator in Energy Recirculation Technology

Introduction

Qian Chang is a notable inventor based in Nürnberg, Germany. He has made significant contributions to the field of energy recirculation, particularly in the context of electric motors. His innovative approach aims to enhance the efficiency of energy use during braking processes.

Latest Patents

Qian Chang holds a patent for an "Active Brake Unit." This invention relates to a circuit arrangement designed for recirculating the energy produced during the braking of electric motors into a supply system. The primary objective of this invention is to facilitate the feeding of energy obtained during braking into the supply system without the need for an isolating transformer. The solution involves a forward branch that includes a rectifier connected to the supply system, guided through a first intermediate circuit to a first inverter linked to the motor. Additionally, a backward branch is incorporated, featuring a second intermediate circuit connected to the output of the first intermediate circuit, with a second inverter linked to the supply system via a mains circuit.

Career Highlights

Qian Chang is associated with Baumüller Nürnberg GmbH, where he applies his expertise in energy systems. His work focuses on developing innovative solutions that improve the efficiency and sustainability of electric motor operations.

Collaborations

Qian collaborates with Thomas Peetz, who is also a key figure in his projects. Their combined efforts contribute to advancing technology in their field.

Conclusion

Qian Chang's contributions to energy recirculation technology exemplify the importance of innovation in enhancing the efficiency of electric motors. His work not only reflects his expertise but also his commitment to sustainable energy solutions.