@article{pal_online_2016,
	title = {Online calibration of voltage transformers using synchrophasor measurements},
	volume = {31},
	url = {https://ieeexplore.ieee.org/abstract/document/7307200},
	abstract = {Uncalibrated instrument transformers present at the inputs of phasor measurement units (PMUs) can significantly degrade their outputs. This also causes problems in downstream applications that use PMU data. This paper presents a method for calibrating voltage transformers online using synchrophasor measurements. The proposed approach aims to find the optimal locations where good quality measurements must be added in order to bring the calibration error of all the measurements below a predefined threshold. The IEEE 118-bus system, the IEEE 300-bus system, and a 2383-bus Polish system have been used as the test systems for this analysis. The advantage of the proposed approach is its effectiveness and robustness.},
	number = {1},
	journal = {IEEE Trans. on Power Del.},
	author = {Pal, Anamitra and Chatterjee, Paroma and Thorp, James S. and Centeno, Virgilio A.},
	month = feb,
	year = {2016},
	keywords = {Binary integer programming (BIP), calibration, Calibration, Current measurement, Instrument transformers, Mathematical model, Measurement uncertainty, optimal placement, Phasor measurement units, phasor measurement units (PMUs), Voltage measurement, voltage transformers},
	pages = {370--380},
}

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