Multi-objective optimization for electric water heater using mixed integer linear programming

Journal of Modern Power Systems and Clean Energy

Tongzhou Ji¹  Yu-Qing Bao¹  Mei Wu¹  Jinlong Zhang¹ 

[1] Engineering Laboratory of Gas-Electricity Integrated Energy of Jiangsu Province, Nanjing Normal University,Nanjing,China;

关键词: Demand response;    Electric water heater;    Thermostatically-controlled automatic water mixer;    Mixed integer linear programming;   

DOI  :  10.1007/s40565-019-0542-5

来源: DOAJ

【 摘 要 】

Due to the capacity of thermal storage, electric water heater (EWH) is one of the best candidates for demand response programs. However, few attentions are given to the modeling and optimization of EWHs with thermostatically-controlled automatic water mixer (TCAWM). In this paper, differential thermodynamic model is established for EWHs with TCAWM and a piecewise linear approximation method is performed for the nonlinear thermodynamic model. The multi-objective optimization model is established by introducing an index reflecting the comfort degree of users, so that the optimal energy usage of the EWH can be obtained by mixed integer linear programming. Testing examples verify the effectiveness of the proposed method.

【 授权许可】

Unknown