Power Electronic Converters

12Dynamic Modeling of Three-Phase Inverters

12.1 Introduction

This chapter presents a systematic method to obtain dynamic models for three-phase grid-connected inverters. After studying this chapter, the reader should be familiar with the concept of dynamic modeling of three-phase inverters in d–q domain and be able to derive unterminated open-loop models for voltage and current-fed inverters with L and LCL-type filters. Moreover, the reader should be familiar with the methods for evaluating the dynamic effect of nonideal source impedance.

In this chapter, dynamic models of voltage and current-fed inverter are derived without the effect of source [1] and load impedance [2]. Such model is referred as an un-terminated model [3]. The dynamic ...