A power quality monitoring system: a case study in DSP-based solutions for power electronics

Programmable digital signal processors (DSPs) are emerging as the processors of choice in monitoring and control of high-end power electronics systems. This paper adopts a case study approach to illustrate a development methodology for DSP-based solutions. The unique features of DSP chips that make them ideal for real-time applications are highlighted. Power electronics systems where DSPs have been used are indicated. A case study in which a DSP-based solution was developed for a power quality monitoring application is presented. Through the case study, the issues involved in adopting a system architecture, selecting a DSP, and developing software for an application are discussed. The methodology described in this paper presents broad guidelines which can be intelligently applied to develop DSP-based solutions to meet specific requirements.