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Chapter 4 Computer Simulation

This chapter delves into computer simulation techniques for power electronic converters and systems, addressing modeling challenges, and offering insights into large-signal and small-signal analysis. It discusses the simplification of component models and the implications of nonlinearities in closed-loop operations under large disturbances. The chapter also covers the modeling of switching operations, employing tools like PSpice and MATLAB for system simulation. Through practical examples, it explores the trapezoidal method of integration and various discrete input voltage scenarios, enhancing understanding of converter dynamics.

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Chapter 4 Computer Simulation

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  1. Chapter 4 Computer Simulation Chapter 4 Computer Simulation of Power Electronic Converters & Systems

  2. System to be Simulated • Challenges in modeling power electronic systems Chapter 4 Computer Simulation of Power Electronic Converters & Systems

  3. Large-Signal System Simulation • Simplest component models Chapter 4 Computer Simulation of Power Electronic Converters & Systems

  4. Small-Signal Linearized Model for Controller Design • System linearized around the steady-state point Chapter 4 Computer Simulation of Power Electronic Converters & Systems

  5. Closed-Loop Operation: Large Disturbances • Simplest component models • Nonlinearities, Limits, etc. are included Chapter 4 Computer Simulation of Power Electronic Converters & Systems

  6. Modeling of Switching Operation • Detailed device models • Just a few switching cycles are studied Chapter 4 Computer Simulation of Power Electronic Converters & Systems

  7. Modeling of a Simple Converter • Input voltage takes on two discrete values Chapter 4 Computer Simulation of Power Electronic Converters & Systems

  8. Trapezoidal Method of Integration • The area shown above represents the integral Chapter 4 Computer Simulation of Power Electronic Converters & Systems

  9. A Simple Example • The input voltage takes on two discrete values Chapter 4 Computer Simulation of Power Electronic Converters & Systems

  10. Modeling using PSpice • Schematic approach is far superior Chapter 4 Computer Simulation of Power Electronic Converters & Systems

  11. PSpice-based Simulation • Simulation results Chapter 4 Computer Simulation of Power Electronic Converters & Systems

  12. Simulation using MATLAB Chapter 4 Computer Simulation of Power Electronic Converters & Systems

  13. MATLAB-based Simulation • Simulation results Chapter 4 Computer Simulation of Power Electronic Converters & Systems

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