An adaptive decentralized economic dispatch method for virtual power plant

被引:26
作者
Dong, Lianxin [1 ]
Fan, Shuai [1 ]
Wang, Zhihua [2 ]
Xiao, Jucheng [1 ]
Zhou, Huan [1 ]
Li, Zuyi [3 ]
He, Guangyu [1 ]
机构
[1] Shanghai Jiao Tong Univ, Minist Educ, Key Lab Control Power Transmiss & Convers, Shanghai 200240, Peoples R China
[2] Elect Power Dispatching & Commun Ctr State Grid S, Shanghai 200122, Peoples R China
[3] IIT, Dept Elect & Comp Engn, Chicago, IL 60616 USA
基金
中国国家自然科学基金;
关键词
Decentralized economic dispatch; Virtual power plant; Bottom up; Adaptive method; HOME ENERGY MANAGEMENT; ALGORITHM; MODEL; OPTIMIZATION; SYSTEMS; DERS;
D O I
10.1016/j.apenergy.2021.117347
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
This paper introduces a decentralized economic dispatch method and an architecture suitable for the virtual power plant (VPP) aggregating massive distributed energy resources (DERs). The convergence condition is given for quadratic cost functions, and is extended to the case of general increasing function of incremental cost (IC). Further analysis shows that the step of this method is adaptive, which is generated from the bottom up according to the responsiveness of each DER unit (DERU). Combined with the decentralized architecture based on message queue (MQ), the algorithm design considers the hosting mechanism of the coordinator failure, which not only improves the efficiency of calculation and communication without losing privacy-protection, but also makes it more fault-tolerant. The correctness and effectiveness of the method are verified in the case studies. The iterative process can respond and converge quickly when DER units reach capacity limits or devices fail/join. Due to the adaptability of the step, the method has strong robustness to the quantity and parameters randomness of underlying units. Therefore, it can be applied to the VPP with a massive number of DERs in order to get consensus solution by rapid economic dispatch.
引用
收藏
页数:15
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