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Trust-tech based parameter estimation and its application to power system load modeling

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3 Author(s)
Byoung-Kon Choi ; Transm. Planning Dept., PJM Interconnection LLC, Norristown, PA, USA ; Hsiao-Dong Chiang ; Yu, D.C.

Accurate load modeling is essential for power system static and dynamic analysis. By the nature of the problem of parameter estimation for power system load modeling using actual measurements, multiple local optimal solutions may exist and local methods can be trapped in a local optimal solution giving possibly poor performance. In this paper, Trust-Tech, a novel methodology for global optimization is applied to tackle the multiple local optimal solutions issue in measurement-based power system load modeling. Multiple sets of parameter values of a composite load model are obtained using the Trust-Tech in a deterministic manner. Numerical studies indicate that the Trust-Tech along with conventional local methods can be successfully applied to power system load model parameter estimation in measurement-based approach.

Published in:

Power & Energy Society General Meeting, 2009. PES '09. IEEE

Date of Conference:

26-30 July 2009