P and M Class Phasor Measurement Unit Algorithms Using Adaptive Cascaded Filters
- 13 June 2013
- journal article
- research article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Power Delivery
- Vol. 28 (3), 1447-1459
- https://doi.org/10.1109/tpwrd.2013.2238256
Abstract
The new standard C37.118.1 lays down strict performance limits for phasor measurement units (PMUs) under steady-state and dynamic conditions. Reference algorithms are also presented for the performance (P) and measurement (M) class PMUs. In this paper, the performance of these algorithms is analyzed during some key signal scenarios, particularly those of offnominal frequency, frequency ramps, and harmonic contamination. While it is found that total vector error (TVE) accuracy is relatively easy to achieve, the reference algorithm is not able to achieve a useful rate of change of frequency (ROCOF) accuracy. Instead, this paper presents alternative algorithms for P and M class PMUs, which use adaptive filtering techniques in real time up to 10-kHz sample rates, allowing consistent accuracy to be maintained across a ±33% frequency range. ROCOF errors can be reduced by factors of > 40 for P class and > 100 for M class devices.Keywords
This publication has 23 references indexed in Scilit:
- Filters for M class Phasor Measurement UnitsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2012
- P-Class Phasor Measurement Unit algorithms using adaptive filtering to enhance accuracy at off-nominal frequenciesPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2011
- A real-time harmonic monitoring aimed at improving smart grid power qualityPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2011
- An Adaptive Dynamic Phasor Estimator Considering DC Offset for PMU ApplicationsIEEE Transactions on Power Delivery, 2011
- Synchronized Phasors Monitoring During the Islanding Maneuver of an Active Distribution NetworkIEEE Transactions on Smart Grid, 2011
- Fast-responding measurements of power system harmonics using discrete and fast Fourier transforms with low spectral leakagePublished by Institution of Engineering and Technology (IET) ,2011
- On the accuracy specifications of Phasor Measurement UnitsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2010
- Frequency and fundamental signal measurement algorithms for distributed control and protection applicationsIET Generation, Transmission & Distribution, 2009
- Synchronized Phasor and Frequency Measurement Under Transient ConditionsIEEE Transactions on Power Delivery, 2008
- Progresses in PMU testing and calibrationPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2008