Measurement of Phasor-like Qualities

PI: 
Kirkham, Harold
Project Status: 
Current

Devices called Phasor Measurement Units (PMUs) report the values of (for example) amplitude, frequency and phase of the power system. These parameters describe a mathematical entity called a phasor.  But the power system quantities are not phasors—they are 'phasor-like.' Their frequency and amplitude are not constant, and constant parameters are a requirement of a phasor. Further, the word phase is not even defined as a parameter relating two signals of different frequencies, and yet that is a required output of a PMU. This proposed work is based on finding another way to describe the power system that is being measured. It is important because unless a parameter being measured is defined, it is not possible to say whether it is being measured accurately.

Related Publications

Kirkham, Harold. "75 Years of Drift: The Changing Meaning of Phasor [History]." IEEE Power and Energy Magazine 18.1 (2020) 76 - 88.
Kirkham, H., D. R White, and A. Riepnieks. "Power Factor revisited." 2020 IEEE International Instrumentation and Measurement Technology Conference (I2MTC). Dubrovnik, Croatia: IEEE, 2020.
Kirkham, H., D. R White, and A. Riepnieks. "Power Factor revisited." 2020 IEEE International Instrumentation and Measurement Technology Conference (I2MTC). Dubrovnik, Croatia: IEEE, 2020.
Kirkham, Harold, Rod White, and Mihaela Albu. "Dealing with Definitional Uncertainty Better Measurements in Power Systems." 2019 IEEE 10th International Workshop on Applied Measurements for Power Systems (AMPS). Aachen, Germany: IEEE, 2019.
Kirkham, Harold, Rod White, and Mihaela Albu. "Dealing with Definitional Uncertainty Better Measurements in Power Systems." 2019 IEEE 10th International Workshop on Applied Measurements for Power Systems (AMPS). Aachen, Germany: IEEE, 2019.
Kirkham, H. "Measuring Bus Frequency During Transients: Some Fundamentals." 2019 IEEE Power & Energy Society General Meeting (PESGM). Atlanta, GA, USA: IEEE, 2019.
Kirkham, H. "Measuring Bus Frequency During Transients: Some Fundamentals." 2019 IEEE Power & Energy Society General Meeting (PESGM). Atlanta, GA, USA: IEEE, 2019.
Kirkham, Harold, Alexander Emanuel, Mihaela Albu, and David Laverty. "Resolving the reactive power question." 2019 IEEE International Instrumentation and Measurement Technology Conference (I2MTC). Auckland, New Zealand: IEEE, 2019.
Kirkham, Harold, Alexander Emanuel, Mihaela Albu, and David Laverty. "Resolving the reactive power question." 2019 IEEE International Instrumentation and Measurement Technology Conference (I2MTC). Auckland, New Zealand: IEEE, 2019.
Kirkham, Harold, and Rod White. "The Modern Measurement Challenge." 2019 IEEE International Instrumentation and Measurement Technology Conference (I2MTC). Auckland, New Zealand: IEEE, 2019.
Kirkham, Harold, and Rod White. "The Modern Measurement Challenge." 2019 IEEE International Instrumentation and Measurement Technology Conference (I2MTC). Auckland, New Zealand: IEEE, 2019.
Kirkham, Harold, and D. Rod White. "The Nature of the Measurement of Partial Discharge." 2019 IEEE International Instrumentation and Measurement Technology Conference (I2MTC). Auckland, New Zealand: IEEE, 2019.
Kirkham, Harold, and D. Rod White. "The Nature of the Measurement of Partial Discharge." 2019 IEEE International Instrumentation and Measurement Technology Conference (I2MTC). Auckland, New Zealand: IEEE, 2019.
Kirkham, Harold, William Dickerson, and Arun Phadke. "Defining Power System Frequency." 2018 IEEE Power & Energy Society General Meeting (PESGM). Portland, OR: IEEE, 2018.
Kirkham, Harold, and Rod White. "Pure and applied measurement: The need for expanded education." IEEE Instrumentation & Measurement Magazine 21.6 (2018) 52 - 59.
Kirkham, H., M. Albu, M. Engels, G. Frigo, A. Hedayatipour, D. Laverty, A. von Meier, A. Riepnieks, D.R. White, and Z-M Yang. "Teaching Measurement Fundamentals." 2018 IEEE 59th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON). Riga, Latvia: IEEE, 2018.
Kirkham, H., M. Albu, M. Engels, G. Frigo, A. Hedayatipour, D. Laverty, A. von Meier, A. Riepnieks, D.R. White, and Z-M Yang. "Teaching Measurement Fundamentals." 2018 IEEE 59th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON). Riga, Latvia: IEEE, 2018.
Kirkham, Harold, Shikhar Pandey, and David Laverty. "Test Results from the SEMPR PMU." 2018 IEEE Power & Energy Society General Meeting (PESGM). Portland, OR: IEEE, 2018.
Kirkham, Harold, Shikhar Pandey, and David Laverty. "Test Results from the SEMPR PMU." 2018 IEEE Power & Energy Society General Meeting (PESGM). Portland, OR: IEEE, 2018.
Laverty, David M, H. Kirkham, D John Morrow, and X Liu. "Estimation of goodness of fit of synchrophasors during transient faults." 2017 IEEE Power & Energy Society General Meeting (PESGM). Chicago, IL, USA: IEEE, 2017.
Roscoe, Andrew J, Adam Dysko, Ben Marshall, Martin Lee, Harold Kirkham, and Gert Rietveld. "The Case for Redefinition of Frequency and ROCOF to Account for AC Power System Phase Steps." 2017 IEEE International Workshop on Applied Measurements for Power Systems (AMPS). Liverpool, United Kingdom: IEEE, 2017.
Kirkham, Harold, and Artis Riepnieks. "Dealing with non-stationary signals: Definitions, considerations and practical implications." 2016 IEEE Power and Energy Society General Meeting (PESGM). Boston, MA, USA: IEEE, 2016. 1 - 5.
Elizondo, Marcelo A, and Harold Kirkham. Economics of High Voltage dc Networks. Pacific Northwest National Laboratory, 2016.

Related Files

   PDF (1.57 MB)
Kirkham, Harold, Artis Riepnieks, Eddy So, and Jim McBride. "Error correction: A proposal for a standard." 2016 Conference on Precision Electromagnetic Measurements (CPEM 2016). Ottawa, ON, Canada: IEEE, 2016. 1 - 2.
Kirkham, Harold. "Pure and applied metrology." IEEE Instrumentation & Measurement Magazine 19.6 (2016) 19 - 24.

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