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具有直流母线电压偏移抑制的三相四开关逆变器驱动感应电机预测转矩控制方案

Predictive Torque Control Scheme for Three-Phase Four-Switch Inverter-Fed Induction Motor Drives With DC-Link Voltages Offset Suppression

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中文摘要

本文提出了一种针对三相四开关(B4)逆变器驱动感应电机的预测转矩控制方案。B4逆变器通过减少开关数量降低了成本,并可作为六开关(B6)逆变器故障后的容错方案。针对B4逆变器直流母线电压波动导致的相电流不平衡问题,本文设计了有效的抑制策略,提升了系统运行的稳定性与可靠性。

English Abstract

The four-switch three-phase (B4) inverter, having a lower number of switches, was first presented for the possibility of reducing the inverter cost, and it became very attractive as it can be utilized in fault-tolerant control to solve the open/short-circuit fault of the six-switch three-phase (B6) inverter. However, the balance among the phase currents collapses due to the fluctuation of the two ...
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SunView 深度解读

该技术主要涉及逆变器拓扑优化与容错控制,对阳光电源的逆变器产品线具有参考价值。首先,B4逆变器拓扑在降低硬件成本方面的研究思路可为低成本户用逆变器或小型驱动器提供借鉴;其次,文中提到的容错控制技术与阳光电源组串式逆变器及储能变流器(PCS)的可靠性设计方向一致,有助于提升产品在极端工况下的鲁棒性。建议研发团队关注该拓扑在电机驱动或小型化储能系统中的应用潜力,特别是在追求高功率密度和故障自愈能力的场景下。