Water and Energy Management based on Fuzzy Logic and Linear Programming for a Photovoltaic/ Wind/Battery Pumping System in Rural Environment

This paper presents an energy and water management strategy in an autonomous multisource (photovoltaic, wind, battery) system powering hydraulic (pump and water tank) and electrical loads. The proposed strategy is based on the pump power modulation. The fuzzy logic is used to define the pump's rate power. Afterwards, a linear programing algorithm decides about the connexion status of the sources and electrical loads. The targeted goal is to cover the load needs and to efficiently use the battery. The elaborated strategy performances are evaluated by caseworks, using a load profile, a water consumption profile and real meteorological data of Gandon site in Senegal. The results show that the loads and the needs in water are covered at a 100%. Energy sources production presents an excess of 18%. The water level in the tank is always maintained above the defined critical threshold. Beyond the satisfactory water threshold in the tank, the battery is the main storage device.