FIELD: electricity.
SUBSTANCE: conversion method consists in logical conversion of the result of comparison of the carrier saw-tooth signal with trigger level signals. Every time the preset voltage vector angle reaches a value divisible by π/n, where n - an integer 1 or 3 the saw-tooth signal is reset to the initial condition which is pre-defined and located within the range from 0 to the saw amplitude maximum.
EFFECT: improved quality of the electric drive operation in the steady mode and in transitory modes due to exclusion of constant components in the standalone invertor output voltage at subharmonic frequencies.
5 dwg
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