Asymmetric Constant-rate Transfer Function Model for FastADR Feedback Control of a Cluster of Building Multi-type Air-conditioners

Abstract

A possibility of application of fast automated demand response (FastADR) aggregation of a cluster of office building air-conditioning facilities to the load frequency control (LFC) of the future smart grid is studied. An aggregation feedback control system design for the LFC is carried out comparing between the conventional 1st order delay and our asymmetric constant rate transfer functions for the response characteristics of air-conditioners' power consumption. Due to the non-linear and rate-limited power consumption changes of building multi-type air-conditioners, there were significant differences between the effects to the LFC responses. Although a recovery disturbance in the LFC result in the case of the conventional 1st order transfer function, the phenomenon disappeared in the case of our proposed transfer function.