Adaptive Control in Power Electronics Systems

Power electronics systems are subject to uncertain and time-variant parameters and also disturbances e.g. due to aging, thermal effects, load changes etc. Therefore a fixed and linear control structure may not be able to present and give the desired performance under all conditions. Adaptive control methods have been proposed by power electronics researchers to overcome these issues. These
control methods have the capability to work with unknown and uncertain parameters based on a rich mathematical background and using stability analysis. Thus in this chapter, different types of adaptive control methods, including direct and indirect adaptive control methods and also identification
techniques (which is the essential part of adaptive control system), are presented. Moreover, their application on a three-phase UPS system is examined.