ABSTRACT
This chapter describes the objectives, features, and constraints that characterize power electronic converters, emphasizing those aspects that are relevant to control. It outlines the principles by which tractable dynamic models are obtained for power electronic converters; such models are required for application of the various control design approaches and techniques. The chapter examines how controls are typically designed and implemented in power electronics. Power electronics is concerned with high-efficiency conversion of electric power, from the form available at the input or power source, to the form required at the output or load. Power electronic engineers have invented dever mechanisms for implementing the types of modulation schemes needed for feedback and feedforward control of power converters. The chapter also examines a representative and popular state feedback scheme for high-frequency pulse-width-modulated converters such as the boost converter, namely current-mode control.
