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Practical PMU configuration based on weak voltage area monitoring and incomplete observability

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2 Author(s)
Tianyu An ; Sch. of Electr. Eng. & Autom., Harbin Inst. of Technol. ; Suquan Zhou

A practical PMU configuration method based on weak voltage area monitoring and incomplete observability is proposed. Firstly, SNB curves of all buses are calculated by CPF. Then voltage magnitude variation is adopted to find weak voltage buses under the same load variation rate. The buses, which have bigger normalized DeltaV , are chosen as weak voltage ones. We use the rate of voltage magnitude variation as grouping standard and present two indices (in time domain and frequency domain) for weak voltage buses group similarity. A fuzzy maximal tree is constructed to group the weak voltage buses according to their similarities and in consideration of the geographic factors. To locate the PMUs equally and sparsely, we introduce incomplete observability for PMU configuration as well as the placement rule. Finally, the whole PMU configuration flow chart is proposed and the simulations on IEEE 118 bus system show our configuration method is effective

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Power Engineering Society General Meeting, 2006. IEEE

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