Operation scheduling considering demand response in a commercial building with chiller system and energy storage system

摘要

Demand response (DR), is one of attractive options for the end-users such as commercial buildings (COBUs), residences, and industrial facilities. In a COBU, the most popular adjustable demand is a chiller system used in heating, ventilation and/or air conditioning loads, which can achieve load reduction in a specified duration by means of pre-cooling (time- shift of chiller operation). On the other hand, the primitive motivation for an energy storage system (ESS) installation in a COBU has been improvement in economic efficiency by peak- shift operation considering Time-Of-Use (TOU) tariff. However, under the DR scheme, the ESS can be also used as a DR resource (DRR). Based on this background, this paper proposes an energy management algorithm for a COBU with chiller system and ESS, considering the TOU tariff and the Korean DR market. The proposed method consists of day-ahead scheduling and rescheduling on the operation day. Uncertainties in ambient temperature and DR event are considered as scenarios. The validity of the proposed method is ascertained through case studies.