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Open Circuit (Three-Phase)

Three-phase terminator that draws no current

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  • Open Circuit (Three-Phase) block

Libraries:
Simscape / Electrical / Connectors & References

Description

The Open Circuit (Three-Phase) block models a three-phase connection that draws no current on any of the three phases.

Examples

Earthing Effects with Unbalanced Load

Earthing Effects with Unbalanced Load

The effects of three different types of earthing connections on network voltages and currents.

Three-Phase Three-Level PWM Generator

Three-Phase Three-Level PWM Generator

Use the PWM Generator (Three-phase, Three-level) to control a Three-Level Converter. The upper and lower supply voltages are input to a Neutral point controller, which balances the DC-link capacitor voltages. Reference AC waveforms are used as inputs to the PWM Generator. There is one time scope for the controller waveforms.

Three-Phase Bridge Cycloconverter

Three-Phase Bridge Cycloconverter

A three-phase bridge cycloconverter. The cycloconverter consists of 36 thyristors and has the capacity to lower the frequency of the input voltage. The Control subsystem implements the cycloconverter RMS voltage control. It also provides pulse generation for the firing of the thyristors. The Visualization subsystem contains scopes that allow you to see the simulation results. The simulation time, t, is 1 second. The load increases when Load1 switches on at t = 0.75 seconds.

Three-Phase Voltage-Sourced Converter (FLB)

Three-Phase Voltage-Sourced Converter (FLB)

Model a three-phase voltage-sourced converter that uses Fixed Low-side Bias (FLB) modulation. This modulation scheme minimizes the switching in the converter as at any given time one phase is not being pulse modulated. The trade-off is the need for narrower pulses for a given level of acceptable harmonics. The model can be used to support selection of suitable values for L, C and the pulse modulation scheme parameters.

Ports

Conserving

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Expandable composite (a,b, c) three-phase port.

Parameters

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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.

Extended Capabilities

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

Version History

Introduced in R2013b

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See Also

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