ZF has developed an electric motor which does not require magnets. In contrast to the magnet-free concepts of so-called separately excited synchronous motors (SESM) already available …

To overcome this problem, a contactless rotary transformer is designed and implemented for the rotor field excitation. The designed motor is built and tested. The test data show that the …

2024年6月28日 · This critical examination focuses on an electric motor topology that has played a key role in purely electric vehicles to date: the Permanently excited Synchronous Machine …

2020年8月1日 · The SESM is a brushless machine with no PMs and no DC external rotor supply. The basic idea is to exploit the space harmonics of the MMF produced by the stator winding in …

2017年9月27日 · To overcome this problem, a contactless rotary transformer is designed and implemented for the rotor field excitation. The designed motor is built and tested. The test data …

2023年9月11日 · A technology called SESM (separately excited synchronous motors) requires no magnets, but now ZF — a German company — claims to have a different scheme using …

与目前已有的所谓独立励磁同步电机（SESM：separately excited synchronous motors）的无磁体概念相反，ZF的I2SM（In-Rotor Inductive-Excited Synchronous Motor，转子内感应励磁同步 …

2023年9月1日 · ZF has developed an electric motor which does not require magnets. In contrast to the magnet-free concepts of so-called separately excited synchronous motors (SESM) …

A separately excited synchronous motor (SSM) is a topology which is provided with windings in the rotor. The necessary magnetic field needed to produce torque is mainly generatd by these …

2017年9月27日 · To overcome this problem, a contactless rotary transformer is designed and implemented for the rotor field excitation. The designed motor is built and tested. The test data …