Microsecond nonlinear model predictive control for DC‐DC converters. (20th February 2020)

• Record Type: Journal Article
• Authors: Lekić, Aleksandra; Hermans, Ben; Jovičić, Nenad; Patrinos, Panagiotis
• Is Part Of: International journal of circuit theory and applications. Volume 48:Number 3(2020)
• Page Start: 406
• Page End: 419
• Publication Date: 2020-02-20
• Subjects: DC‐DC power converters -- model predictive control -- optimal control -- switching control systems; Electric circuit analysis -- Periodicals; 621.319205
• DOI: 10.1002/cta.2737
• Languages: English
• ISSNs: 0098-9886

Abstract

Summary: In this paper, we present a novel nonlinear model predictive control (NMPC) formulation for the transient control of a DC‐DC converter. We demonstrate that a real‐time implementation of the proposed NMPC scheme using the PANOC solver can be efficiently applied to control DC‐DC converters in the microsecond range. Moreover, an embedded, code‐generated version of PANOC can be implemented using microcontrollers or digital signal processors. The algorithm is incorporated in the transient simulator of PWM DC‐DC converters, and the operation of the simulator on the boost converter's example is presented, comparing the performance of our NMPC‐controller with that of a classical PID controller. The operation of the boost converter controlled using the proposed NMPC algorithm is validated experimentally. Abstract : In this paper, we present a novel nonlinear model predictive control formulation for the transient control of a DC‐DC converter. We demonstrate that a real‐time implementation of the proposed NMPC scheme using the PANOC solver can be efficiently applied to control DC‐DC converters in the microsecond range. Moreover, an embedded, code‐generated version of PANOC can be easily implemented using microcontrollers or digital signal processors, which is demonstrated experimentally on boost converter.