Permanent Magnet Synchronous Traction System for the Vehicles of Shenyang Metro Line 2

It describes the main circuit of PMSM traction system for M car of the 20st vehicle for Shenyang Metro Line 2 as well as technical characteristic,parameters of PMSM,and compares the test results of motor loss and temperature-rise for PMSM traction system with the one for asynchronous motor traction system.PMSM traction system is well evaluated as a result of line prototype test and no-load operation.