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Simple Overmodulation Scheme for Improved Dynamic Performance of IPMSM

机译：用于提高IPMSM动态性能的简单过调制方案

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摘要

In the automotive application, the traction motor is controlled under the voltage-limiting condition due to limited battery voltage. In this paper, it is shown that by simply changing the overmodulation scheme of PWM, the dynamic performance of IPMSM can be improved conspicuously. The current regulator, exploiting cross-coupling nature of dq-axes voltages of IPMSM to secure a voltage margin at q-axis for the rapid regulation of q-axis current, can be easily implemented by the scheme only limiting pole voltages to DC link voltage with 60° DPWM with −30° phase shift clamping. The effectiveness of the proposed method is confirmed by simulation and experimental results.
机译：在汽车应用中，由于电池电压的限制，牵引电机在电压限制条件下进行控制。本文表明，仅通过改变PWM的过调制方案，即可显着改善IPMSM的动态性能。电流调节器利用IPMSM的dq轴电压的交叉耦合特性来确保q轴上的电压裕度，以便快速调节q轴电流，该方案可通过仅将极点电压限制为直流链路电压的方案轻松实现具有60°DPWM和-30°相移钳位。仿真和实验结果证明了该方法的有效性。

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