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基于脉冲模式优化辅助MPC的SiC基永磁同步电机驱动系统共模与差模电压抑制

Pulse Pattern Optimization-Assisted MPC for SiC-Based PMSM Drives to Reduce Both Common-Mode and Differential-Model Voltages

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中文摘要

随着碳化硅(SiC)功率器件在永磁同步电机(PMSM)驱动系统中的应用,电机侧电压过冲问题日益突出。在模型预测控制(MPC)框架下,虽然已有针对共模电压(CMV)的抑制策略,但针对SiC基驱动系统的差模电压(DMV)抑制仍需进一步优化。本文提出了一种脉冲模式优化辅助的MPC策略,旨在同时降低CMV和DMV,提升系统性能。

English Abstract

With the application of silicon carbide (SiC) power devices in permanent magnet synchronous motor (PMSM) drive systems, the voltage overshoot issue on the motor side becomes more prominent. Within the model predictive control (MPC) framework, the common-model voltage (CMV) reduction has been considered in some strategies. However, the reduction of differential-model voltage (DMV) for SiC-based PMS...
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SunView 深度解读

该技术对阳光电源的电动汽车驱动及高性能电机控制领域具有重要参考价值。SiC器件的高开关速度虽提升了效率,但带来的电压过冲和电磁干扰(EMI)是行业痛点。通过将脉冲模式优化与MPC结合,可有效降低共模和差模电压,减少电机绝缘压力及轴承电流损耗。建议研发团队在电动汽车充电桩的功率模块设计及高性能电机驱动控制器中引入该控制策略,以优化系统电磁兼容性(EMC),提升产品可靠性,并为未来高压SiC逆变器架构提供技术储备。