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Modelling multiple injection bus in power system state estimation

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4 Author(s)
Lu, C.N. ; Dept. of Electr. Eng., Nat. Sun Yat-Sen Univ., Kaohsiung, Taiwan ; Leou, R.C. ; Cheng, C.L. ; Rai, T.S.

State estimation which uses redundant real-time telemetry to estimate the system state is considered to be one of the essential parts of the modern energy management system. Owing to modelling restrictions in a multiple injection bus, many of the injection measurements at a bus, in certain circumstances, are not usable, and the estimated net injection cannot be correctly distributed among the individual injections. Two new methods are proposed to model the multiple injection bus. Test results indicate that the proposed methods cannot only utilise all available measurements but also provide a convenient way of estimating individual injections contributing to a bus

Published in:

Generation, Transmission and Distribution, IEE Proceedings C  (Volume:140 ,  Issue: 6 )