Unified Power Flow Controller (UPFC) Based on Chopper Stabilized Multilevel Converter
Loading...
Date
2000
Journal Title
Journal ISSN
Volume Title
Publisher
IEEE Transactions on Power Electronics
Abstract
As the diode-clamped, multilevel converter has been found to have attractive features for STATCOM application, there is interest in extending it to UPFC application by using multilevel converters as the series and the shunt converters. Unfortunately, as is demonstrated in this paper, the DC voltages at their DC links, are inherently unstable. Faced with this impasse, a solution is sought in a system of local feedback controlled Class B choppers to equalize the DC. A laboratory experimental model establishes the feasibility of the proposal. Digital simulations show that current ratings in the choppers need be only 10% of the current ratings in the converters. The chopper cost is estimated as 1% of the cost of the multilevel converters
Description
Full text available at http://ieeexplore.ieee.org/xpl/articleDetails.jsp?tp=&arnumber=838098&url=http%3A%2F%2Fieeexplore.ieee.org%2Fxpls%2Fabs_all.jsp%3Farnumber%3D838098
Keywords
choppers (circuits), feedback, load flow control, power semiconductor diodes, static VAr compensators
Citation
Chen, Y., Mwinyiwiwa, B., Wolanski, Z. and Ooi, B.T., 2000. Unified power flow controller (UPFC) based on chopper stabilized diode-clamped multilevel converters. Power Electronics, IEEE Transactions on, 15(2), pp.258-267.