以Si C-MOSFET和Si-IGBT器件混合型三电平有源中点钳位3L-ANPC(three-level active neutral point clamped)变流器拓扑为研究对象,对3种脉宽调制方式下的共模电磁干扰CM EMI(common-mode electromagnetic interference)特性进行研究。...以Si C-MOSFET和Si-IGBT器件混合型三电平有源中点钳位3L-ANPC(three-level active neutral point clamped)变流器拓扑为研究对象,对3种脉宽调制方式下的共模电磁干扰CM EMI(common-mode electromagnetic interference)特性进行研究。首先介绍了3L-ANPC变流器拓扑结构中Si C-MOSFET和Si-IGBT器件的2种组合模式及3种调制方式,然后对3L-ANPC变流器拓扑共模噪声传输机理进行分析,基于分析建立了包含寄生参数和噪声源的EMI模型,并推导出每种调制方式下传导路径的阻抗表达式,得到了共模传导路径阻抗特性曲线。最终通过实验验证了3种调制方式下器件混合型3L-ANPC变流器拓扑共模噪声的分析结论。展开更多
Matrix converter fed motor drive is superior to pulse width modulation inverter drives since it not only provides bi-directional power flow,sinusoidal input/output currents,unity input power factor,but also allows a c...Matrix converter fed motor drive is superior to pulse width modulation inverter drives since it not only provides bi-directional power flow,sinusoidal input/output currents,unity input power factor,but also allows a compact design due to the lack of DC-link capacitors for energy storage.In this paper,model and control of matrix converter fed induction motor drive system are analyzed.A combined control strategy is simplified and improved,which realizes space vector pulse width modulation of matrix converter and rotor flux oriented vector control technique for induction motor drive simultaneously.This control strategy combines the advantages of matrix converter with the good drive performance of vector control technique.Experimental results demonstrate the feasibility and effectiveness of the proposed control strategy.展开更多
文摘以Si C-MOSFET和Si-IGBT器件混合型三电平有源中点钳位3L-ANPC(three-level active neutral point clamped)变流器拓扑为研究对象,对3种脉宽调制方式下的共模电磁干扰CM EMI(common-mode electromagnetic interference)特性进行研究。首先介绍了3L-ANPC变流器拓扑结构中Si C-MOSFET和Si-IGBT器件的2种组合模式及3种调制方式,然后对3L-ANPC变流器拓扑共模噪声传输机理进行分析,基于分析建立了包含寄生参数和噪声源的EMI模型,并推导出每种调制方式下传导路径的阻抗表达式,得到了共模传导路径阻抗特性曲线。最终通过实验验证了3种调制方式下器件混合型3L-ANPC变流器拓扑共模噪声的分析结论。
文摘Matrix converter fed motor drive is superior to pulse width modulation inverter drives since it not only provides bi-directional power flow,sinusoidal input/output currents,unity input power factor,but also allows a compact design due to the lack of DC-link capacitors for energy storage.In this paper,model and control of matrix converter fed induction motor drive system are analyzed.A combined control strategy is simplified and improved,which realizes space vector pulse width modulation of matrix converter and rotor flux oriented vector control technique for induction motor drive simultaneously.This control strategy combines the advantages of matrix converter with the good drive performance of vector control technique.Experimental results demonstrate the feasibility and effectiveness of the proposed control strategy.
