Chapter 4 Computer Simulation
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Transcript of Chapter 4 Computer Simulation
4-1
Chapter 4 Computer Simulation
4-2
System to be Simulated
• Challenges in modeling power electronic systems
4-3
Large-Signal System Simulation
• Simplest component models
4-4
Small-Signal Linearized Model for Controller Design
• System linearized around the steady-state point
4-5
Closed-Loop Operation: Large Disturbances
• Simplest component models
• Nonlinearities, Limits, etc. are included
4-6
Modeling of Switching Operation
• Detailed device models
• Just a few switching cycles are studied
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Modeling of a Simple Converter
• Input voltage takes on two discrete values
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Trapezoidal Method of Integration
• The area shown above represents the integral
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A Simple Example
• The input voltage takes on two discrete values
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Modeling using PSpice
• Schematic approach is far superior
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PSpice-based Simulation
• Simulation results
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Simulation using MATLAB
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MATLAB-based Simulation
• Simulation results