Abstract
In automotive testing systems, effective and efficient control strategies are required to control the induction motor drives so that fast torque response and low torque ripple can be obtained. The fast torque response can be obtained by using predictive current control (PCC) due to its high bandwidth over a wide speed range; and the torque ripple can be reduced by using open-end winding induction motor (OEWIM). However, the conventional PCC with first order cost function has the problem of excessive computation burden and insufficient suppression on zero-sequence current. In this paper, a three-dimensional predictive current trajectory control (3DPCTC) method is proposed and implemented. Compared with conventional predictive control methods, the proposed method significantly reduces calculation burden, and provides stronger zero-sequence current suppression and lower current distortion as well as more stable transient response.
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