Journal
IEEE TRANSACTIONS ON POWER SYSTEMS
Volume 26, Issue 3, Pages 1102-1109Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TPWRS.2010.2079960
Keywords
Constrained state estimation; hybrid state estimation; phasor measurement units; synchrophasor measurements; uncertainty propagation
Categories
Funding
- Engineering and Physical Sciences Research Council [EP/G055211/1] Funding Source: researchfish
- EPSRC [EP/G055211/1] Funding Source: UKRI
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This paper presents a new hybrid constrained power system state estimator. The conventional and synchrophasor measurements are simultaneously incorporated in the estimation problem without using any transformation of measurements. This constrained formulation makes it possible to take advantage of information from phasor measurement unit (PMU) branch current and voltage measurements, improving the accuracy of the existing estimators. The methodology is applied on the IEEE 14-, 57-, and 118-bus test systems, and its performance is compared with other hybrid estimators.
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