| 基于IHPWM的三电平VIENNA整流器中点电位平衡策略 |
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| 引用本文： | 申兴,王久和.基于IHPWM的三电平VIENNA整流器中点电位平衡策略[J].电源学报,2018,16(3):48-53. |
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| 作者姓名： | 申兴 王久和 |
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| 作者单位： | 北京信息科技大学自动化学院 |
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| 基金项目： | 国家自然科学基金资助项目（51477011，51777012）；北京市自然科学基金重点资助项目（KZ201511232035）；北京市高创教学名师项目（PXM2017_014224_000025） |
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| 摘 要： | 针对三电平VIENNA整流器固有的中点电位波动问题,详细分析了中点电位平衡控制的可控和不可控区域,提出了一种改进型混合调制IHPWM(improved hybrid pulse width modulation)策略,即在可控区域采用空间矢量脉宽调制SVPWM(space vector pulse width modulation)策略,在不可控区域采用虚拟空间矢量脉宽调制VSVPWM(virtual SVPWM)策略。仿真实验表明,改进型混合调制方法能够有效地降低低频脉动,更好地平衡中点电位。
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| 关 键 词： | VIENNA整流器 中点电位平衡 SVPWM VSVPWM 混合调制策略 |
| 收稿时间： | 2016/5/5 0:00:00 |
| 修稿时间： | 2018/2/10 0:00:00 |
IHPWM Based Neutral-point Voltage Balance Strategy for Three-level VIENNA Rectifier |
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| SHEN Xing and WANG Jiuhe.IHPWM Based Neutral-point Voltage Balance Strategy for Three-level VIENNA Rectifier[J].Journal of power supply,2018,16(3):48-53. |
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| Authors: | SHEN Xing and WANG Jiuhe |
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| Affiliation: | School of Automation, Beijing Information Science and Technology University, Beijing 100101, Chin and School of Automation, Beijing Information Science and Technology University, Beijing 100101, Chin |
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| Abstract: | Considering the inherent fluctuation problem of neutral-point in the three-level VIENNA rectifier, the controllable and uncontrollable regions under neutral-point voltage balance control strategy are analyzed in detail, and an improved hybrid pulse width modulation(IHPWM) strategy is proposed, i.e., space vector pulse width modulation(SVPWM) is used in the controllable region, while virtual space vector pulse width modulation(VSVPWM) is used in the uncontro-llable region. Simulation results show that the improved hybrid modulation strategy can reduce the low-frequency ripple effectively and balance the neutral-point voltage better. |
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| Keywords: | VIENNA rectifier neutral-point voltage balance SVPWM VSVPWM hybrid modulation strategy |
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