Semiconductors and Converters
使用半导体和转换器对功率进行转换和整流。
有关 Simscape™ Electrical™ 许可证所包含的交互式培训课程，请参阅电力电子仿真入门之旅。
类别
- 半导体
离散半导体器件，例如二极管和晶体管
- Converters
转换器、逆变器、整流器、斩波器、栅极多路复用器
精选示例
Interactive Generation of MOSFET Characteristics
Explore the impact of parameter choices on the I-V and C-V characteristics for a surface-potential-based MOSFET model. To open the MOSFET Characteristics window, in the MATLAB® Command Window, type MOSFETParameterAnalyzer.
降压转换器电压控制
此示例展示了如何控制降压转换器的输出电压。为了调整占空比，Control 子系统使用基于 PI 的控制算法。在整个仿真过程中，输入电压被视为恒定的。一个可变电阻器为系统提供负载。总仿真时间 (t) 为 0.25 秒。在 t = 0.15 秒时，负载发生变化。
Four-Quadrant Chopper Control
Control a four-quadrant chopper. The Control subsystem implements a simple PI-based control algorithm for controlling the output current. The simulation uses both positive and negative references. The total simulation time (t) is 1 second. At t = 0.5 seconds, the polarity of the load DC source E is changed.
复合三相整流器
这是分析工作流示例的基础模型。
降压转换器
此示例展示了如何对将 30V DC 电源转换为 15V DC 稳压电源的开关电源进行建模。使用此模型确定电感 L 和平滑电容器 C 的大小，并设计反馈控制器。在连续控制器和离散控制器之间进行选择，以探索离散化的影响。
Marine Full Electric Propulsion Power System
A representative marine half-ship electrical power system with base load, hotel load, bow thrusters and electric propulsion.
Power Converter Model Fidelity Comparison
Use different levels of fidelity in power converters. You change the level of fidelity by changing the values for the Fidelity level, Switching device, and Integral protection diode parameters of the Converter (Three-Phase) block. You also change the inputs to the G port. Using a higher level of fidelity improves the accuracy of the results but it also slows down simulation.
Three-Phase Matrix Converter
A three-phase matrix converter that drives a static load and draws unity power factor at the source. The Scopes subsystem contains scopes that allow you to see the simulation results.
Surge Protection in Buck Converter
How a varistor may be applied to a buck converter in order to protect the switching MOSFETs from over-voltages due to a differential surge.
Inverting Topology Buck-Boost Converter Control
Control the output voltage of an inverting topology buck-boost converter. The inverting topology buck-boost converter uses only a single switch and the output voltage is of the opposite polarity than the input. To adjust the duty cycle, the Control subsystem uses a PI-based control algorithm. The input voltage and the system load are considered constant throughout the simulation. The total simulation time (t) is 0.25 seconds. At t = 0.15 seconds, the voltage reference changes and the system switches from buck mode to boost mode.
CCM 升压转换器的功率因子校正
此示例展示了如何使用 PFC 预转换器来校正功率因子。当开关模式电源等非线性阻抗连接到 AC 电网时，这种技术非常有用。由于在开关周期内流过电感器的电流永远不会为零，因此升压转换器以连续导通模式 (CCM) 运行。电感器电流和输出电压曲线采用简单的积分控制进行控制。在启动期间，参考输出电压会斜坡上升至期望电压。
