Page 219 - Decision Making Applications in Modern Power Systems
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Role of microphasor measurement unit Chapter | 7 183
Maingrid
Distribution
µPMU
network substation µPMU
Renewable
generation
Household µPMU
load µPMU
Commercial
load µPMU Converter
Industrial
load µPMU
FIGURE 7.1 µPnet arrangement. μPnet, Microphasor measurement unit network.
Proposed µPMU measurements
Proposed device capabilities
Reference magnitude
Harmonics Proposed µPMU measurements
Proposed device capabilities
Angular resolution Transients capture Waveshape changes Measurement interval of Hz and angle Power and sequence imbalance Reference magnitude
Clock precision GPS time stamp precision 0.1 degree 512 samples per cycle 1 degree 1 cycle 12 cycles µPMU data buffer
Microseconds
10 –3 1 10 3 10 6 10 9 10 12
FIGURE 7.2 Abilities of µPMU in a logarithmic timescale. μPMU, Microphasor measurement
unit.
