Error reduction of phasor measurement unit data considering practical constraints
| Autor: | Virgilio A. Centeno, Paroma Chatterjee, Anamitra Pal, James S. Thorp, Jaime De La Ree Lopez |
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| Rok vydání: | 2018 |
| Předmět: |
Computer science
020209 energy System of measurement 020208 electrical & electronic engineering Real-time computing Energy Engineering and Power Technology 02 engineering and technology Phasor measurement unit Current transformer Constraint (information theory) Quality (physics) Transmission (telecommunications) Control and Systems Engineering 0202 electrical engineering electronic engineering information engineering Calibration Electrical and Electronic Engineering Voltage |
| Zdroj: | IET Generation, Transmission & Distribution. 12:2332-2339 |
| ISSN: | 1751-8695 1751-8687 |
| DOI: | 10.1049/iet-gtd.2017.1359 |
| Popis: | Wide area measurement system relies on phasor measurement unit (PMU) data to monitor, protect, and control high-voltage transmission networks. However, errors in instrument transformers (ITs) located at the inputs of a PMU can significantly degrade its output quality. This study proposes two methodologies for voltage and current transformers calibration using PMU data. The first method calibrates ITs using one good quality voltage measurement located at a tie-line. This method tolerates errors in both the ITs (which are to be estimated) as well as the PMUs. The second method attains the same objective as the first one, with the additional constraint that some portion of the data is unusable. Thus, the second method can be used even when the incoming data is intermittent. |
| Databáze: | OpenAIRE |
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