Load Aggregator Strategic Quotation and Peak Market Clearing Optimization Considering Adjustment Cost

doi:10.3969/j.issn.1008-0198.2023.04.004

Abstract

Abstract: The access of high proportion of new energy makes the uncertainty of power supply increasing, the unbalance of power supply outstanding and the difference between peak and valley of load increasing. In order to solve the problem of unbalance of power supply and demand during peak hours, a strategic bidding strategy of load aggregator considering adjusting cost and its optimal clearing strategy in peak market are proposed. Firstly, the load aggregator is defined, and the flexible resource is classified according to the characteristics of voltage level, load curve, unit power regulation cost and power consumption characteristics. Secondly,the paper analyzes the characteristics and adjustment potential of various kinds of end-user load, establishes the model of load adjustment cost of various kinds of end-users, and constructs the strategic quotation model, to minimize the sum of load adjustment costs of load aggregators, a clearing model is established. Finally, a typical peak demand response scenario involving a regional load aggregator is taken as an example to demonstrate the validity and scientificity of the proposed method.

Key words: adjusting cost, strategic quotation, clearing optimization, load aggregator

CLC Number:

TM714

ZHANG Lingqiao, ZHOU Zhengcheng, SHEN Shasha, XIANG Yunkun, LIU Hanlin, WANG Wei, MENG Ke. Load Aggregator Strategic Quotation and Peak Market Clearing Optimization Considering Adjustment Cost[J]. Hunan Electric Power, 2023, 43(4): 24-31.

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