Flexibility assessment indicator for aggregate residential demand

In the modern power system, characterization of customer's demand plays a vital role for Demand Side Management. Demand flexibility information, extracted from the aggregate demand behaviour of customers, presents more comprehensive picture for the aggregator or system operator. There is an existence of diverse flexible time slots during a day in different time periods. Due to the diverse energy consumption behaviour of the residential customers, extraction of flexibility and its associated potential time durations is a challenging task. To extract flexibility information from aggregate residential customers, a flexibility indicator is formulated in this paper. Information presented gives an indication about flexible time slots in terms of numerical value that is useful for a system operator or an aggregator for demand side flexibility assessment and this will lead to design and initiate DSM programs.