FROM PSIM SIMULATION TO HARDWARE IMPLEMENTATION IN DSP

Abstract

This chapter describes the basic functions and features of the simulation software PSIM. Through a grid‐link inverter system example, it illustrates how to set up the power and control circuits, and how to convert analog controllers to digital controllers. The chapter shows how to prepare the system for automatic code generation and processor‐in‐the‐loop (PIL) simulation with Texas Instruments F28335 DSP. PSIM is simulation software specifically designed for power electronics, motor drives, and power conversion systems. In PSIM, a circuit is represented in four parts: power circuit, control circuit, sensors, and switch controllers. With the basic understanding of the DSP hardware and the PSIM hardware target library, one will be in a position to modify the grid‐link inverter system for automatic code generation. If one chooses to write the DSP code manually, PSIM provides a way to validate the code through PIL simulation with minimum change to the original code.