1. PQube 3? MicroPMU?
PSL Symposium Bangkok Thailand

2. What is a PMU? An instrument
which measures and records magnitude and angle of the fundamental (sine wave) compared to a reference Every instrument must have the same reference (GPS time)

3. Synchro-phasors
1 second
12:34:
12:34:

4. For transmission systems… For distribution and microgrid
What is a Micro PMU?
An instrument which measures and records magnitude and angle of the fundamental (sine wave) with VERY HIGH accuracy and resolution “The microscope for the distribution grid”
Traditional PMU
±1% precision (TVE)
±1˚ angle accuracy
±0.1% magnitude resolution
±0.1˚ angle resolution
For transmission systems…
Micro-PMU
±0.05% precision (TVE)
±0.01˚ angle accuracy
±0.0002% magnitude resolution
±0.002˚ angle resolution
For distribution and microgrid

5. Why Micro PMUs?
Distribution network stability and control : distribution lines are much smaller than transmission lines
 angle differences are much smaller

6. MicroPMU vs PQube 3
Time Domain
Frequency Domain

7. PQube 3 vs. MicroPMU Same hardware platform ! But not the same product
Specific firmware for computing micro-synchrophasors
MicroPMU requires advanced calibration (PSL factory calibration)
Requires a MS1- GPS1 module (and good GPS signal reception)
A microPMU can be turned into a PQube3 in the field (but a PQube3 cannot become a microPMU)
PQube 3 is the best energy and power quality instrument available. You can use it three different ways.

8. Measurement Data
PQube 3 is the best energy and power quality instrument available. You can use it three different ways.

9. Measurement Data Pacific DC Intertie Trip April 28, 2015
PQube 3 is the best energy and power quality instrument available. You can use it three different ways.