Fully Distributed Economic Dispatch of Combined Heat and Power System Considering Individual Selfishness

doi:10.16183/j.cnki.jsjtu.2022.495

Abstract

Abstract:

In response to the defects of the traditional centralized economic dispatching strategy which needs to obtain global information and cannot adapt to the flexible topology of the system, and considering the coexistence of energy in the form of electricity and heat, a completely distributed cogeneration economic dispatching strategy based on the consistency algorithm is proposed. The incremental cost of electricity price and heat price of each unit in the cogeneration system is taken as the consistent variable to conduct the iterative calculation until the incremental cost converges to achieve the economic optimum of the system. In addition, the case of individual unit transmitting to neighboring units with deviating incremental cost values in order to enhance their own interests is also analyzed, and an incremental cost compensation term is designed to eliminate the impact of this selfish behavior. The simulation results indicate that the proposed strategy is effective and viable in the solution of the cogeneration economic dispatching problems.

Key words: consensus algorithms, combined heat and power, fully distributed, economic dispatch, individual selfishness

CLC Number:

TM732

MI Yang, WU Jiwei, TIAN Shuxin, MA Siyuan, WANG Yufei. Fully Distributed Economic Dispatch of Combined Heat and Power System Considering Individual Selfishness[J]. Journal of Shanghai Jiao Tong University, 2024, 58(1): 50-58.

Figures/Tables 8

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机组	α	β	γ	δ	ε	ζ
G1	500	13.55	0.081 2	0	0	0
G2	840	12.93	0.049 6	4.6	0.027	0.016
G3	810	12.22	0.043 5	3.7	0.037	0.023
G4	830	12.76	0.088 3	3.9	0.025	0.022
G5	360	0	0	4.3	0.035	0
G*	860	13.89	0.068 6	4.2	0.033	0.031