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基于电压矢量角调节的小直流母线电容永磁同步电机驱动线性调制区扩展策略

Linear Modulation Region Expansion Strategy Based on Voltage Vector Angle Regulation for PMSM Drives With Small DC-Link Capacitor

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中文摘要

针对小直流母线电容电机驱动系统中,调制波动导致线性运行范围缩小及直流母线利用率降低的问题,本文提出了一种基于电压矢量角调节的线性调制区扩展策略。通过分析电压参考与直流母线电压波动之间的相位关系,有效提升了系统的调制性能。

English Abstract

Modulation fluctuations will decrease the linear operation range and cause the reduction of dc-link utilization for reduced dc-link capacitance motor drives. In this article, a novel strategy for expanding the linear modulation region based on voltage vector angle regulation is proposed. The phase relationship between the voltage reference and the dc-link voltage fluctuation is carried out creativ...
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SunView 深度解读

该研究关注小直流母线电容下的调制策略优化,对于阳光电源的电动汽车充电桩(EV Charger)及风电变流器(Wind Power Converter)业务具有参考价值。在追求高功率密度和小型化的趋势下,减小直流母线电容是降低成本和体积的关键,但会带来电压纹波挑战。该文提出的电压矢量角调节策略可优化变流器的调制算法,提升直流母线利用率,有助于改善阳光电源相关电机驱动类产品的动态响应性能和输出质量。建议研发团队评估该算法在变流器控制软件中的移植可行性。