What is the brushless electric excitation motor used for? Who invented it?
The shaft end of brushless excitation generator is alternator, and the rotor is generator winding. The generated current is guided by the silicon rectifier tube fixed on the shaft through the wire fixed on the generator shaft, and the rectified DC directly enters the rotor winding. There is no such thing as a rectifier brush, so it is called brushless excitation. The following small series will introduce you to "What is the brushless electric excitation motor for? Who invented the brushless electric excitation motor? "
1. What is the brushless electric excitation motor used for?
In the brushless excitation system, the excitation winding of the AC exciter is excited by the voltage regulator, and the alternating current generated by the armature winding of the exciter is rectified by the rotating rectifier and then excited by the magnetic field winding of the main generator.
Brushless excitation system has its irreplaceable advantages and can run stably under dangerous working conditions. It is the first choice for modern small and medium-sized motors and large brushless excitation systems.
2. Who invented the brushless electric excitation motor?
Brushless motor was invented by Li Hongtao.
1995, Li Hongtao invented "brushless electric excitation motor", which won the gold medal in the 5th China Patent Invention Expo and the first prize for outstanding invention. It is reported that when Li Hongtao applied for a patent, she was renamed "Yang Hongjun".
In the next few years, Li Hongtao (alias "Yang Hongjun") made more inventions and won three invention patents and three utility model patents. Due to Li Hongtao's significant meritorious service, he was sentenced to fixed-term imprisonment and suspended sentence, in line with the provisions of the law on commutation and commutation. In 2009, Li Hongtao was released from prison and started a new life.
In 2002, Li Hongtao recalled his two successful escape experiences and decided to help the prison improve its management system.
Since then, the computerized prison monitoring and management system jointly developed by Li Hongtao and the technical police of Kunming No.1 Detention Center has been successful, and Kunming No.1 Detention Center has jumped into the list of 20 model detention centers in China.