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Properties testing of Phasor Measurement Unit

Hořínek M.

Zeszyty Naukowe. Elektryka / Politechnika Opolska

2011

z. 66

27-30

Phasor Measurement Units (PMUs) are used for the evaluation of synchronous phasor. Features of the PMU are described in IEEEC37.118 standard. This document is focused on the description of communication with PMU and the accuracy of PMU measurement in steady state. Detailed description of the implementation phasor evaluation in the form of international standard hasn't existed yet.

Advanced power analyzer based on virtual instrumentation

Hořínek M.

Zeszyty Naukowe. Elektryka / Politechnika Opolska

2011

z. 66

25-26

To measure input and output power of frequency converter in the same is quite specific task, because the output voltage frequency varies and both input and output power has to be measured from the same time window and at the same time the integer multiply of signal cycles has to be processed. At the same time can be measured mechanical power from analog or frequency signals from torque and revolution sensors. The input current and output voltage contain many harmonic components and thus the sampling frequency has to be sufficiently high.