Connectors and References
R2026a使用连接器模块接地，以及端接、分离和合并信号。
Simscape 模块
 | Cable and Connectors | Cable and connectors with optional fault modeling (自 R2024b 起) |
 | Busbar | 潮流分析母排连接器 |
 | Busbar (DC) | Load flow analysis DC busbar connector (自 R2022a 起) |
 | Delta Reference (Three-Phase) | Internal reference point for delta-connected network |
 | Electrical Reference | 电气接地连接 |
 | 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 (自 R2023b 起) |
 | 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 | 扩展或组合三个电气守恒端口 |
 | PS Three-Element Demux | Convert three-element physical signal vector into scalar physical signals |
主题
- 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.
精选示例
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.
使用直接转矩控制法控制感应电机的转速
此示例展示了如何使用直接转矩控制方法控制异步电机 (ASM)。基于 PI 的转速控制器提供转矩参考值。直接转矩控制器生成逆变器脉冲。
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.
三相两电平 PWM 发生器
此示例展示了如何使用 PWM 发生器（三相，两电平）来控制转换器。PWM 发生器的输入是参考 AC 波形和 400 V 的 DC 链路电压。控制器波形有一个时间示波器。
三相异步电机启动
此示例展示了如何对感应电机的星型-三角型启动电路进行建模。一秒钟后，Controller 子系统闭合标注为 S1 的开关。该开关闭合后，电源便连接到电机。最初，电机以星型配置连接到电源，因为标注为 S2 的开关将 ~1 端口的每相连接到 ~2 端口的对应相，而 ~3 端口则保持未连接状态。当电机转速达到同步转速的 80% 时，S2 通过断开 ~2 端口的每相，并将 ~1 端口的每相连接到 ~3 端口的对应相，以三角型配置重新连接电机。此后，无论转子转速如何，电机都将以三角型配置运行。电机采用星型配置时，电源侧看到的阻抗较高，从而降低启动电流，并减少对其他连接负载的干扰。
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.
