Active Participation of Air Conditioners in Power System Frequency Control Considering Users’ Thermal Comfort

Energies

Rongxiang Zhang¹  Xiaodong Chu²  Wen Zhang¹  Yutian Liu¹ 

[1] Key Laboratory of Power System Intelligent Dispatch and Control of Ministry of Education, Shandong University, 17923 Jingshi Road, Jinan 250061, China;

关键词: power system;    frequency control;    air conditioner;    thermal comfort;    fuzzy mathematics;   

DOI  :  10.3390/en81010818

来源: mdpi

【 摘 要 】

Air conditioners have great potential to participate in power system frequency control. This paper proposes a control strategy to facilitate the active participation of air conditioners. For each air conditioner, a decentralized control law is designed to adjust its temperature set point in response to the system frequency deviation. The decentralized control law accounts for the user’s thermal comfort that is evaluated by a fuzzy algorithm. The aggregation of air conditioners’ response is conducted by using the Monte Carlo simulation method. A structure preserving model is applied to the multi-bus power system, in which air conditioners are aggregated at certain load buses. An inner-outer iteration scheme is adopted to solve power system dynamics. An experiment is conducted on a test air conditioner to examine the performance of the proposed decentralized control law. Simulation results on a test power system verify the effectiveness of the proposed strategy for air conditioners participating in frequency control.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.