The 30th Annual Conference of the IEEE Industrial Electronics Society, November 2 - 6, 2004, Susan, Korea
DSP-based doub1y fed induction generator test bench using a back-to-back PWM converter S. Gallardo1, J.M. Carrasco1,mEEMember, E. Galvan l , lEEEMemberandL.G. Franquelo l ,
IEEE Senior Member
1S. Gallardo, J.M. Carrasco, E. Galvan and L.G. Franquelo. Department of Electronic Engineering. University ofSeviUe, Seville, SPAIN, e-mail:
[email protected]@
[email protected]@gte.esius.es
Abstract- Present paper describes the design of II doubly fed induction generator (DFJG) test bench with active crowbar, using II PWM vollage-fed Inverters connected between the grid and the rotor. A vector-
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After that, the algorithm calculates the current references twd, using II 2 to :3 coordinates transformation which are saturated in order to Ilvoid high current that could in the equipment. provoke a The for the PWM block is obtained from the voltage, a small signal component obtafued from the PID PWM controller comparing the actual current with it~ reference. In the figure 6 an of the experimental control of VDC at 600 V is we can observed the of the capacitor bus at fttSt via a resistance as shows figure 5, after Where the capacitor is over 300 V the direct connection is realized and 315 V in DC-bus are reached, at this moment the rectifier to control the bus, after a time it is disconnected to connect and disconnect we can see the bus al least when the is opened.
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