Junbo Zhao

Title: Innovations of Junbo Zhao in EMU Technology

Introduction

Junbo Zhao is a notable inventor based in Qingdao, China. He has made significant contributions to the field of electrical engineering, particularly in the development of control strategies for auxiliary converters in Electric Multiple Units (EMU). With a total of 2 patents, his work focuses on enhancing the reliability and efficiency of power supply systems.

Latest Patents

One of Junbo Zhao's latest patents is titled "Synchronous soft-start networking control strategy for parallel auxiliary converters of EMU." This innovative strategy allows for the quick and reliable automatic networking of auxiliary converters during emergency traction modes. The method includes fast networking logic, bus fast-tracking logic, and a PQ droop networking control strategy. This ensures that the EMU can complete startup loading within a specified time under various working conditions, thereby providing a strong guarantee for stable and reliable operation.

Another significant patent is the "Parallel control method and system for single-phase inverters and inverter." This invention involves controlling multiple single-phase inverters to work in parallel. It addresses the issue of restarting delays in mutual backup modules by allowing other inverters to automatically bear the load of a faulted inverter. This results in a real uninterrupted power supply and high reliability, which is crucial for vehicle operation.

Career Highlights

Junbo Zhao has worked with Crrc Qingdao Sifang Rolling Stock Research Institute Co., Ltd., where he has contributed to various projects related to EMU technology. His expertise in control systems has been instrumental in advancing the capabilities of modern rail systems.

Collaborations

Throughout his career, Junbo Zhao has collaborated with notable colleagues such as Bo Zhang and Meiyun Li. These partnerships have fostered innovation and have led to the successful development of his patented technologies.

Conclusion

Junbo Zhao's contributions to the field of electrical engineering, particularly in the area of EMU technology, demonstrate his commitment to innovation and reliability. His patents reflect a deep understanding of complex control systems, which are essential for the advancement of modern transportation.