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METHOD AND DEVICE FOR MODIFIED SPACE VECTOR PULSE WIDTH MODULATION REDUCING DC BUS RIPPLE ACTION IN POWER SUPPLY INVERTER
METHOD AND DEVICE FOR MODIFIED SPACE VECTOR PULSE WIDTH MODULATION REDUCING DC BUS RIPPLE ACTION IN POWER SUPPLY INVERTER
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机译:减小电源逆变器中的矢量矢量脉宽调制降低直流母线纹波作用的方法和装置
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摘要
PROBLEM TO BE SOLVED: To provide a method and a device for controlling a motor drive inverter in which output is controlled by modified space vector pulse width modulation. ;SOLUTION: A digital signal processor 710 calculates a required instantaneous duty ratio of an inverter output waveform such that the effect of ripple component of a line voltage is canceled by an input ripple signal extracted from the line voltage and a speed/position feedback signal 702 related to the inverter output for driving a motor 705. An inverter PWM drive controlled by the instantaneous duty ratio is applied to the gates of N channel MOSFET transistors 100-102 and 110-112 forming the inverter and the inverter output is controlled by modified space vector pulse width modulation.;COPYRIGHT: (C)2000,JPO
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