Dual loop control of DC-DC boost converter based cascade sliding mode control

Abstract

Cascade control of boost converters is a very efficient technique compared with single loop control. Classical cascade PI control is widely used in practical commercial boost converters. The combination of such linear and classical corrector with sliding mode control gives best dynamic performances and provides a well tracked reference output voltage under high ouput load change and serious decrease of input source voltage. The main objective of this paper is proving the effeciency and simplicity of cascade SMC-PI control design compared with two approches : first order single loop SMC control and cascade classical PI control.