Description: Analyzed were t he reason why t he dead2time effect rises in the inverter and how it influences
t he cont rol effect s of alternating current (AC) servo systems. It is found out t hat t he key point of t he
dead time compensation is obtaining t he current angle. In order to overcome t he f uzzy of t he current
zero point in t he real system , a met hod based on a feed2forward app roach t hat produces compensating
signal by use t he angle of t he current vector in t he is proposed. By apply t he Fourier t ransform ( FFT)
to t he compensating voltage in one period of t he t hree p hase outp ut current , t he dead time effect s is e2
liminated by compensate t he 1 , 5 , 7 harmonic component s only. The experimental result s show t he
effectiveness of the met hod.
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交流伺服系统中的死区效应分析与补偿.pdf
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