This inventor holds 3 USPTO granted patents and 2 EPO patents. Top assignees: Byd Company Limited, Shenzhen Byd Auto R&d Company Limited. Active years: 2013-2018.
Company Filing History:
3 out of 1,042 
2 out of 87 
Years Active: 2013-2018
Title: Innovations of Lipin Cheng in Synchronous Motor Technology
Introduction
Lipin Cheng is a notable inventor based in Guangdong, China. He has made significant contributions to the field of synchronous motor technology, holding a total of three patents. His innovative methods focus on improving the efficiency and reliability of synchronous motors.
Latest Patents
One of Lipin Cheng's latest patents is a method for checking the out-of-step condition of synchronous motors. This method involves detecting the electric degrees of the synchronous motor, which includes at least a first and a second electric degree measured at preset intervals. The second electric degree is recorded after the first, and a comparison is made to determine if the motor is out of step based on specific criteria. The motor is deemed out of step if the electric degree remains unchanged or decreases progressively, or if the increment of the electric degree is minimal.
Another patent by Cheng also addresses the out-of-step condition of synchronous motors by detecting three-phase currents. This method determines whether the relationship between the three-phase currents meets preset requirements. If the conditions are not satisfied, it concludes that the synchronous motor is out of step. The motor is identified as out of step when the amplitudes of the three-phase currents are unequal or when the phase difference deviates from the standard 120 degrees.
Career Highlights
Lipin Cheng has worked with prominent companies such as BYD Company Limited and Shenzhen BYD Auto R&D Company Limited. His experience in these organizations has allowed him to apply his innovative ideas in practical settings, contributing to advancements in motor technology.
Collaborations
Cheng has collaborated with notable colleagues, including Zhiyong Du and Hui Luo. Their teamwork has fostered an environment of innovation and has led to the development of effective solutions in the field of synchronous motors.
Conclusion
Lipin Cheng's contributions to synchronous motor technology through his patents and collaborations highlight his role as a significant inventor in this field. His innovative methods are paving the way for advancements in motor efficiency and reliability.