Connectors and References

Grounds, neutral ports, phase splitters, multiplexers

Use connector blocks for grounding and to terminate, separate, and combine signals.

Simscape Blocks

Busbar	Load flow analysis busbar connector
Busbar (DC)	Load flow analysis DC busbar connector
Delta Reference (Three-Phase)	Internal reference point for delta-connected network
Electrical Reference	Connection to electrical ground
Floating Neutral (Three-Phase)	Internal floating neutral point for wye-connected network
Grounded Neutral (Three-Phase)	Connect phases of three-phase system to electrical reference
Neutral Port (Three-Phase)	Connect phases of three-phase system to electrical conserving port
Open Circuit	Electrical port terminator that draws no current
Open Circuit (Three-Phase)	Three-phase terminator that draws no current
Phase Permute	Permute phases of three-phase system
Phase Splitter	Expand or combine three electrical conserving ports
Three Element Demux	Convert three-element physical signal vector into scalar physical signals

Topics

Essential Electrical Modeling Techniques
Apply Simscape™ modeling rules when you build electronic, mechatronic, and electrical power system networks using Simscape Electrical™.
Three-Phase Ports
Connect three-phase blocks using composite ports for three-phase lines or expanded ports for single-phase lines.

Featured Examples

LC Transmission Line and Test Bridge

A transmission line model and bi-directional test bridge. Reflected and transmitted signals are slightly different if the test direction is changed. This is because the line model is not symmetric. This type of model can be used both to explore the impact of cable choice on transmission characteristics, and also to compare relative fidelity of different transmission line model structures and parameterizations.

Open Model

Asynchronous Machine Direct Torque Control

Control an asynchronous machine (ASM) using the direct-torque control method. A PI-based speed controller supplies the torque reference. The direct-torque controller generates the inverter pulses.

Open Model

Three-Phase Asynchronous Direct Online Motor Connected to Hydraulic Pump

In this example, an asynchronous motor is connected to an ideal pump. The diameter of the valve on the hydraulic system affects the speed and current drawn by the motor.

Open Model

Three-Phase Two-Level PWM Generator

Use the PWM Generator (Three-phase, Two-level) to control a Converter. The inputs to the PWM Generator are reference AC waveforms and a DC-link voltage of 400 V. There is one time scope for the controller waveforms.

Open Model

Three-Phase Asynchronous Machine Starting

Model a wye-delta starting circuit for an induction machine. When the supply is connected to the machine via switch S1, switch S2 is initially off resulting in the machine being connected in a wye configuration. Once the machine is close to synchronous speed, switch S2 is operated thereby reconnecting the machine in a delta configuration. The higher impedance seen by the supply when the motor is in wye configuration reduces the starting current, and causes less disruption to other connected loads.

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