Voltage Regulation of an Isolated DC Microgrid with a Constant Power Load: A Passivity-based Control Design

• DOI: 10.3390/electronics10172085
• Publication Date: 2021-08-30T01:45:16Z
• Authors: Guillermo Luciano...; Federico Martin S...; Cristian Hernán d...; Oscar Danilo Montoya; Diego Armando Gir...
• Keywords: Microgrid; Passivity; Observer (physics)

Passivity-based nonlinear control for an isolated microgrid system is proposed in this paper. The consists of a photovoltaic array and battery energy storage connected to point common converters, supplying constant power load. purpose strategy maintain the output direct current voltage its reference value under load variations, improving interaction. represented by state space averaged model controller designed using interconnection damping assignment strategy, which allows obtaining parameters while ensuring closed-loop stability. unknown estimated observer based on function system. behavior validated with simulation experimental results.