Demand response for delay tolerant consumers in smart grid
DONG Qi-fen
YU Li
SONG Wen-zhan
HONG Zhen
Abstract：With an emphasis on delay tolerant electrical devices, the problem of scheduling the operations of these smart devices is described as a stochastic optimization model. Then, based on Lyapunov optimization technique, a demand response algorithm is proposed to determine when to response to electricity request and to calculate the amount of elec-tricity to be discarded in real time. The proposed algorithm reduces the expected electricity bill and the influence on the consumers by having to give up part of the electricity request because of short supply of electricity or overload of the grid capacity. Third, through theoretical analysis, an explicit trade-off between the value of cost function and the worst-case delay of any electricity request to be completed or dropped is obtained when the electricity request price, the amount of renewable generation and the amount of electricity request are independent and identically distributed. Finally, Simulation demonstrates the effectiveness of the proposed results.
Keywords：smart griddemand responsestochastic optimizationLyapunov optimization
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：10( 467-476 )