VSR - Voltage sensor

The VSR block is a simulation model included in the Imperix Power library. It implements the model of the imperix voltage sensor VSR-1000-ISO, VSR-500-HBW, and DIN800 V in Simulink and PLECS simulation.

For more information regarding the Imperix Power library, please read Getting started with Imperix Power library.

Modeling of VSR

The VSR model has two modeling levels:

• (A) Simple
• (B) Detailed

A generic sensor can be approximately modeled by an ideal sensor in series with an optional first-order Low-Pass Filter (LPF). The relationship between sensor’s bandwidth \(f_{BW}\) and the time constant \(\tau\) of the LPF follows \(\tau = \frac{1}{2\pi f_{BW}}\).

A sensor is modeled as a first-order LPF only if its bandwidth lies within the frequency range of a given modeling level. Otherwise, it is modeled as an ideal sensor. The following table summarizes the information on all the voltage sensors in the Imperix Power library.

Simulink VSR block

Port specification

• The output V is the measured voltage between the two electrical ports.

Parameters

• Use global configurations is ticked when the block receives global configurations from the Config block.
• Modeling level selects the modeling level of the voltage sensor.
• Voltage sensor selects the type of the voltage sensor.

PLECS VSR block

Port specification

• The output V is the measured voltage between the two electrical ports.

Parameters

• Modeling level selects the modeling level of the voltage sensor.
• Voltage sensor selects the type of the voltage sensor.

Probe signals

The following signals can be monitored by a Probe block in PLECS.

• True value [V] monitors the true value of the measured voltage between the two electrical ports in Volt.
• Sensor output [V] monitors the physical output of the voltage sensor in Volt.