Title :
The relationship between space-vector modulation and regular-sampled PWM
Author :
Bowes, Sidney R. ; Lai, Yen-Shin
Author_Institution :
Dept. of Electr. & Electron. Eng., Bristol Univ., UK
fDate :
10/1/1997 12:00:00 AM
Abstract :
The relationship between regular-sampled pulse-width modulation (PWM) and space-vector modulation for inverter drives is defined, and it is shown that, under certain circumstances, the two approaches are equivalent. The various possibilities of adding a zero-sequence component to the regular-sampled sinusoidal modulating wave are explored, and these effects are quantified. It is shown that this leads to “equal-null” pulse times, which extend the linear modulation range and simplify the microprocessor implementation
Keywords :
PWM invertors; electric drives; microcomputer applications; power engineering computing; equal-null pulse times; inverter drives; linear modulation range; microprocessor implementation; regular-sampled PWM; regular-sampled sinusoidal modulating wave; space-vector modulation; zero-sequence component; Councils; Equations; Frequency modulation; Microprocessors; Pulse inverters; Pulse width modulation; Pulse width modulation inverters; Sampling methods; Space vector pulse width modulation; Voltage;
Journal_Title :
Industrial Electronics, IEEE Transactions on
