Hybrid trigeneration system management with a double DC-bus configuration on the electrical side

In this paper, a new control strategy is proposed to manage the electrical power of a hybrid trigeneration system composed of a concentrated photovoltaic and thermal captator, an electrical storage group (including lead acid batteries and supercapacitors), a genset and a lithium bromide absorption machine. The architecture is based on a double DC-bus configuration. An improved control management of the electrical energy flow among the components of the plants and the microgrid has been developed. Different operation modes are investigated and the results are discussed.