Designing of a microcontroller-less overhead tank controller for solarised homes

Renewable energy penetration in the utility is the trend now-a-days and solarised homes are becoming very popular, particularly in the urban areas. Development of overhead tank controller can be extremely useful for reducing the water and energy usage. An attempt is made in this work to design a microcontroller-less overhead tank controller, which will be suited for solarised homes. It will consider the utility voltage condition to predict the extent of loading on the distribution system. This low cost, smart controller will perform the switching of the water pump according to the utility voltage condition, solar generation status, reservoir water availability and water content of the overhead tank. Therefore, it can be considered as a simple demand response system where the switching action can be performed according to simple if-else structure. It will be possible by designing the controller by simple Boolean function in the advance stages.