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© P. Kundur

WTG -  8

Control of Rotor-Side Converter

The converters handle ac quantities:

rotor-side converter carries slip frequency current

stator-side converter carries grid frequency current

Hence, they are controlled using vector-control techniques:

based on the concept of a rotating reference frame and projecting currents on such a reference

such projections referred to as d- and q-axis  components

With a suitable choice of reference frame, AC quantities appear as DC quantities in the steady state cont’d

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