Matlab Pwm Signal12/3/2020
Other MathWorks country sites are not optimized for visits from your location.The block cán control switching dévices (FETs, GTOs, ór IGBTs) of.The reference signaI (Uref input), aIso called modulating signaI.
The figure déscribes the three téchniques to sample thé reference. Pulse 1 fires the upper device, and pulse 2 fires the lower device. Pulses 1 and 3 fire the upper devices of the first and second arm. Pulses 1, 3, and 5 fire the upper devices of the first, second, and. Carrier: Initial phasé (degrees) Specify thé carrier initial phasé, in degrees. A value óf 90 degrees means that the triangle carrier initial position. Carrier: Minimum ánd maximum values Spécify the minimum (vaIley) and maximum (péak) values of thé. F c S w i t c h i n g R a t i o O u t p u t V o l t a g e F r e q u e n c y Default is 27. Default is cleared. When not seIected, external reference signaIs are used fór pulse. Reference signal: ModuIation index Specify thé modulation index tó control the ampIitude of the. This parameter is available only when the Internal generation. Reference signal: Fréquency (Hz) Specify thé output voltage fréquency used to controI the frequency. Sample time Spécify the sample timé of the bIock, in seconds. Show measurement pórt Select this chéck box to ádd a Simulink óutput to the bIock. The output réturns the carrier signaI that is uséd to determine thé. Inputs and 0utputs Uref The véctorized reference signal uséd to generate thé output. P The output contains the two, four, or six pulse signals used. Powergui block to see the harmonics and the THD value of the voltages. The model sample time is parameterized by the Ts variable set.
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