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A simulation technique for studying real and reactive power flow patterns

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2 Author(s)
Sachdev, M.S. ; University of Saskatchewan, Saskatoon, Canada ; Ibrahim, S.A.

This paper presents a technique that simulates dispatch actions, such as, changing transformer and phase shifter tap settings and changing voltage magnitudes at voltage controlled buses in a power system. The changes of power injection at one or two system buses, which would simulate the required dispatch action, are calculated using the sensitivity matrix of the basic system state. The real and reactive power flowing in all the system elements and voltages at all the system buses are then computed. The proposed technique has been applied to the interconnected Saskatchewan Power Corporation and Manitoba Hydro systems and to the 118 bus IEEE test system. The power flows and bus voltages calculated by the proposed technique are compared with those obtained from the Newton Raphson load flows.

Published in:

Power Apparatus and Systems, IEEE Transactions on  (Volume:94 ,  Issue: 6 )

Date of Publication:

Nov. 1975

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