Line Voltage Sensor (Three-Phase)
Ideal three-phase line voltage measurement
Simscape / Electrical / Sensors & Transducers
The Line Voltage Sensor (Three-Phase) block represents an ideal three-phase line voltage sensor. The block measures the line-line voltages of a three-phase system and outputs a three-element physical signal vector. Each element of the physical signal output vector is proportional to the voltage between the phases as follows:
Element 1: Vab = Va - Vb
Element 2: Vbc = Vb - Vc
Element 3: Vca = Vc - Va
where Va, Vb, and Vc are the absolute a-, b-, and c-phase voltages.
You must connect the Line Voltage Sensor (Three-Phase) block in shunt with the three-phase element. For more information on how to use this block, see Build and Simulate Composite and Expanded Three-Phase Models.
V — Three-elements vector
Three-element physical signal vector output port associated with the voltages between the phases
Modeling option — Whether to model composite or expanded three-phase ports
Composite three-phase ports (default) |
Expanded three-phase ports
Whether to model composite or expanded three-phase ports.
Composite three-phase ports represent three individual electrical conserving ports with a single block port. You can use composite three-phase ports to build models that correspond to single-line diagrams of three-phase electrical systems.
Expanded three-phase ports represent the individual phases of a three-phase system using three separate electrical conserving ports.