Phasor Measurement Unit (PMU, Three-Phase)

R2026b

Frequency, phase, and amplitude measurement of a three-phase system

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Phasor Measurement Unit (PMU, Three-Phase) block

To add a block to a model, double-click the canvas and start typing the block name. Then, select the block from the list.

Libraries:
Simscape / Electrical / Control / Measurements

Description

The Phasor Measurement Unit (PMU, Three-Phase) block measures the frequency, phase, and amplitude of the positive sequence component of the input electrical signal in a three-phase system at a particular sample rate.

The block uses a system clock as the synchronous reference. This information is commonly collected from a GPS in the real world.

Ports

Input

abc — Three-phase signal

vector

Three-phase input signal, specified as a vector.

Data Types: single | double

Output

freq — Frequency of positive sequence component

scalar

Measured frequency of the positive sequence component, in Hz, returned as a scalar.

Data Types: single | double

angle — Phase angle of positive sequence component

scalar

Measured phase angle of the positive sequence component, in degrees, returned as a scalar.

Data Types: single | double

mag — Magnitude of positive sequence component

scalar

Measured magnitude of the positive sequence component, returned as a scalar.

Data Types: single | double

Parameters

Rated frequency (Hz) — Rated frequency

60 (default) | 50

Rated frequency of the input signal, in Hz.

Sampling points per cycle — Sampling points per cycle

64 (default) | 24 | 48

Number of sampling points per cycle.

Reporting rate factor — Reporting rate factor

1 (default) | scalar

Ratio between the reporting rate and the sampling rate of the block.

Programmatic Use: Add Block

To add the block programmatically, use the add_block function with one of these library block paths as the source.

"ee_sl_lib/Measurements/Phasor Measurement Unit (PMU, Three-Phase)"

Example: add_block("ee_sl_lib/Measurements/Phasor Measurement Unit (PMU, Three-Phase)","myModel/myBlock",MakeNameUnique="on")

Extended Capabilities

C/C++ Code Generation
Generate C and C++ code using Simulink® Coder™.

Version History

Introduced in R2020a