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首页> 外文会议>IEEE International Symposium on Predictive Control of Electrical Drives and Power Electronics >Encoderless Sequential Predictive Torque Control with SMO of 3L-NPC Converter-fed Induction Motor Drives for Electrical Car Applications
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Encoderless Sequential Predictive Torque Control with SMO of 3L-NPC Converter-fed Induction Motor Drives for Electrical Car Applications

机译：采用SMO的3L-NPC变频器供电的感应电机驱动器的无编码器顺序预测转矩控制

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摘要

Finite control set predictive torque control (FCSPTC) is well-known for its fast response and good flexibility. However, drawbacks such as speed dependence and tedious tuning efforts for weighting factors lead to system failure and implementation complexity. This work proposes a revised FCSPTC method for 3L-NPC converter-fed induction motor (IM) using a sliding mode observer (SMO) to estimate the speed errors caused by the rotor shaft encoder. The novelty lies in two aspects: I. The revised SMO frees the controller from the speed signal dependence, eliminating potential accumulated errors from the speed feedback channels. II. The cost function is realized with a sequential structure, avoiding tedious tuning efforts for weighting factors design. Theoretical analysis and simulation results reveal that: the proposed control scheme performs well without weighting factors and achieves encoderless torque control at both transient and steady-state operation phases.
机译：有限控制集预测转矩控制（FCSPTC）以其快速响应和良好的灵活性而闻名。然而，诸如速度依赖性和对加权因子的繁琐的调整工作之类的缺点导致系统故障和实现复杂性。这项工作提出了一种修正的FCSPTC方法，用于使用滑模观察器（SMO）的3L-NPC变频器馈电感应电动机（IM）来估计由转子轴编码器引起的速度误差。新颖之处在于两个方面：I.修改后的SMO使控制器摆脱了速度信号的依赖，从而消除了速度反馈通道中潜在的累积误差。二。成本函数通过顺序结构实现，从而避免了繁琐的加权因子调整工作。理论分析和仿真结果表明：所提出的控制方案在没有加权因子的情况下表现良好，并且在瞬态和稳态运行阶段均实现了无编码器的转矩控制。

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