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The performance of adjustable speed drives under balanced and unbalanced voltage sags /

Mohamed AbouElazaim Mahdy AbdElrazik

The performance of adjustable speed drives under balanced and unbalanced voltage sags / اداء مغذيات المحركات المعدلة السرعة تحت تاثير الانخفاضات اللحظية فى الجهد المتوازنة والغير متوازنة Mohamed AbouElazaim Mahdy AbdElrazik ; Supervised Mohamed M.AbdElaziz , Ahmed F.Zobaa - Cairo : Mohamed AbouElazaim Mahdy AbdElrazik , 2007 - 138P. : charts ; 30cm

Thesis (M.Sc.) - Cairo University - Faculty Of Engineering - Department Of Mechanical Power Engineering

In this thesis the effects of voltage sags on the three - phase rectifier of a voltage - source - inverter (VSI) - fed adjustable - speed drives are analyzed.These effects are dc voltage drop and ac current peaks.A detailed analysis of the behavior of adjustable - speed drives during voltage sags is presented in order to easily predetermine the worst effects of all types of voltage sags and try to ride through them



Adjustable Power quality Speed drives ASDs Voltage sag