Crrc Qingdao Sifang Rolling Stock Research Institute Co., Ltd. (cn)

Crrc Qingdao Sifang Rolling Stock Research Institute Co., Ltd.

Meng Xia

Hu Cao

Jingbin Bi

Fanfei Zeng

The present application provides a control system and method for a permanent magnet synchronous traction and transmission system. A The control system comprises a sampling unit and a controller; the sampling unit collecting an operation excitation current and an operation torque current, a input capacitor voltage and a rotor frequency; the controller acquires a target torque instruction issued to the traction and transmission system, calculates a target excitation current value and a target torque current value, and generates an excitation current regulation value and a torque current regulation value; a regulation unit is configured to generate a torque current regulation value according to the target torque current value and an operation torque current value and generate a target modulation ratio and a modulation frequency according to the excitation current regulation value and the torque current regulation value output from the regulation unit and finally output a PWM modulation wave control signal.

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Qingdao, China

Meng Xia