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{{Short description|Algorithm on pulse-width modulation}}
{{Modulation techniques}}
'''Space vector modulation''' ('''SVM''') is an algorithm for the control of [[pulse-width modulation]] (PWM), invented by Gerhard Pfaff, Alois Weschta, and Albert Wick in 1982.<ref name=control>
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Note that looking down the columns for the active switching vectors V<sub>1-6</sub>, the output voltages vary as a pulsed sinusoid, with each leg offset by 120 degrees of [[Phasor (electronics)|phase angle]].
To implement space vector modulation, a reference signal V<sub>ref</sub> is sampled with a frequency f<sub>s</sub> (T<sub>s</sub> = 1/f<sub>s</sub>). The reference signal may be generated from three separate phase references using the [[Alpha beta gamma transform|
[[File:Space Vector Modulation.gif|center|thumb|400px|All eight possible switching vectors for a three-leg inverter using space vector modulation. An example V<sub>ref</sub> is shown in the first sector. V<sub>ref_MAX</sub> is the maximum amplitude of V<sub>ref</sub> before non-linear overmodulation is reached.]]
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==See also==
* [https://www.switchcraft.org/learning/2017/3/15/space-vector-pwm-intro Space Vector PWM Intro] (includes animations depicting changing relationships between phases and switch states)
* [[Alpha–beta transformation|αβγ transform]]
* [[Inverter (electrical)]]
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