14-07-2011 дата публикации
Номер: CA0002783184A1
Принадлежит:
The invention relates to a method for operating a direct converter circuit, wherein the power semiconductor switches of the switchgear cells (2) of the associated phase module (1) are actuated by means of an actuating signal (S1). In order to reduce undesired energy fluctuations on the phase modules (1), for each phase module (1) the actuating signal (S1) is formed from the difference of a reference signal (Vref,UR, Vref,us, Vref,ut, Vref,vR, Vref,vs, Vref,vt, Vref,wR, Vref,ws, Vref,wt) with respect to the voltage (UUR, UUS, UUT; UVR, UVS, UVT; UWR, UWS, UWT) over the phase module (1) and a voltage signal (VLUR, VLUS, VLUT, VLVR, VLVS, VLVT, VLWR, VLWS, VLWT) over the inductivity (LUR, Lus, Lut; LVR, LVS, LVT; LWR, LWS, LWT), wherein the voltage signal (VLUR, VLUS, VLUT, VLVR, VLVS, VLVT, VLWR, VLWS, VLWT) is formed over the inductivity (LUR, Lus, Lut; LVR, LVS, LVT; LWR, LWS, LWT) from a reference signal (iref.UR, iref.US, iref.UT, iref.VR, iref.VS, iref.VT, iref.WR, iref.WS, iref,WT) ...
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