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Modelling of V–Hz and vector controlled ASDs in PSCAD/EMTDC for voltage sag studies |
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| Authors: | SC Vegunta JV Milanovi? S? Djoki? |
| Affiliation: | 1. TNEI Services Ltd, Manchester M1 2PW, UK;2. School of Electrical and Electronic Engineering of The University of Manchester, PO Box 88, Manchester M60 1QD, UK;3. School of Engineering of The University of Edinburgh, The King''s Buildings, Mayfield Road, Edinburgh EH9 3JL, UK |
| Abstract: | This paper deals with modelling and performance of adjustable speed drives (ASDs) subjected to voltage disturbances in electric supply. The aim of this study was to develop appropriate models of typical ASD and investigate their sensitivity to voltage disturbances under various practical modes of operation and control. Accordingly, scalar controlled open and closed loop volts–hertz (V–Hz) and vector controlled closed loop ASDs are modelled in PSCAD/EMTDC environment, and their performance in the presence of voltage disturbances is investigated under typical operating and loading conditions. |
| Keywords: | Adjustable speed drives V&ndash Hz drive control Vector drive control Voltage sags Short interruptions Voltage tolerance curves |
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