Connectors and References
R2026bUse connector blocks for grounding and to terminate, separate, and combine signals.
Simscape Blocks
 | Cable and Connectors | Cable and connectors with optional fault modeling (Since R2024b) |
 | Busbar | Load flow analysis busbar connector |
 | Busbar (DC) | Load flow analysis DC busbar connector (Since R2022a) |
 | 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 |
 | Floating Reference | Reference for measuring voltage of other nodes in floating electrical network (Since R2023b) |
 | 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 |
 | PS 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.
Control Speed of Induction Machine with Direct Torque Control Method
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.
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.
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.
Three-Phase Asynchronous Machine Starting
Model a wye-delta starting circuit for an induction machine. After one second, the Controller subsystem closes the switch labeled S1. Closing this switch connects the supply to the machine. Initially, the machine connects to the supply in a wye configuration because the switch labeled S2 connects each phase of the ~1 port to the corresponding phase of the ~2 port and leaves the ~3 port unconnected. Once the machine is at 80% of the synchronous speed, S2 reconnects the machine in a delta configuration by disconnecting each phase of ~2 and connecting each phase of ~1 to the corresponding phase of ~3. The motor then operates in a delta configuration regardless of rotor speed. The supply sees a higher impedance when the motor is in wye configuration, reducing the starting current and causing less disruption to other connected loads.
Earthing Effects with Unbalanced Load
The effects of three different types of earthing connections on network voltages and currents.
Model Generic Neutral Connection Using Neutral Port (Three-Phase) Block
Use the Neutral Port (Three-Phase) block to model a generic earthing connection in a three-phase network with an unbalanced load. The example also shows the effects of different types of earthing connection on network voltages and highlights when to use the Neutral Port (Three-Phase), Floating Neutral (Three-Phase), or Grounded Neutral (Three-Phase) block.
Model Transmission System Using Delta Reference (Three-Phase) Block
Use a Delta Reference (Three-Phase) block to provide a reference point for delta winding in a simple model of a transmission system.
