41. Study on the Control of AC Dynamometer System for Hybrid Electrical Vehicle Test Bench

This paper evaluate the testing bench of AC dynamometer system, the induction machine can run in electro motion and generate electricity status under speed and torque control by direct torque control (DTC). It develops the AC dynamometer system controller based on PXI, and study on the AC dynamometer steady-state control strategy under the rapid prototype method in LabVIEW RT software. It effectively enable to n/P, M/P, n/M and M/n control mode, get ideal control quality by adjusting the PID control parameter, each control mode charge smoothness. Experimental results show that the controller is excellent, and the control performances for engine testing completely satisfied the demand of quality control. It provides the basis for further study on dynamic control of AC dynamometer.