1 results about "Levitation" patented technology

The invention discloses an on-line identification method and system for the inductance parameters of a levitation electromagnet of a normally-conductive maglev train. The inductance parameters of thelevitation electromagnet are calculated through the following formula, wherein N is the number of turns of a levitation electromagnet coil, i is the current of the suspension electromagnet, s is the magnetic pole area of the suspension electromagnet, f is the suspension force, and mu0 is vacuum permeability. According to the inductance parameter identification method, the influences of the magnetic flux leakage, the iron core magnetic resistance and the magnetic saturation are fully considered, and the accurate inductance parameters can be obtained. Moreover the table look-up is achieved through the internal software of a controller during the working process of a suspension system, the online obtaining can be achieved through the interpolation calculation, and the method and the system are easy to achieve.