Indirect Field Oriented Control of The Saturated Induction Generators with Linear PI Regulators

Abstract

In this paper indirect field-oriented vector control for saturated induction generator with linear proportional-integral regulators is considered. It is shown that under condition of field orientation the voltage-flux decoupling allows to design the voltage control subsystem using a decomposition approach based on the two-time scale separation of the voltage and torque current dynamics. Resulting structure of the DC-bus voltage dynamics enable to use the linear proportional-integral voltage control achieving under restriction on load current the locally stable voltage regulation. From the analysis of voltage subsystem dynamics a controllers tuning procedure is suggested. Presented in the paper simulations and experimental validation confirm the theoretical findings.