School of Electrical Engineering， Southeast University, Nanjing210096, China
Coordinated control of load for aggregated air-conditioners (ACs) has been included in the normal operation of power system due to better characteristics of spatial thermal storage. However, it leads to many problems such as aggregated power oscillation, unstable response potential and excessive rebound load, because the diversity of load groups is destroyed by the control strategy. To solve these problems, the influence of temperature control on the power and response potential of single and aggregated ACs is analyzed, then the time-variant power characteristic model and polymerization method of aggregated ACs are established based on the temperature control. To improve the aggregated quality of air-conditioner groups, the two-stage coordinated control model of aggregated ACs with time-variant complementary characteristics is built based on the framework of time-phase coordinated control and the corresponding response and recovery strategies are proposed. Finally, based on simulations with 15 000 ACs， the influence of external temperature, temperature strategy and other factors on the aggregated power is analyzed. Meanwhile, the coordinated control strategy of time-phase air-conditioner groups is applied in demand response events. The results verify the effectiveness of the proposed method.
CHEN Lu, YANG Yongbiao, XU Qingshan. Coordinated Control and Recovery Strategy for Aggregated Air-conditioner Based on Time-variant Complementary Characteristics[J]. Automation of Electric Power Systems, 2020, 44(13):39-47. DOI:10.7500/AEPS20190829004.