Planning-Operation Co-Optimization of Gas-Heat-Electricity Co-Generation Network

doi:10.3969/j.issn.1000-7229.2016.04.004

Abstract

Abstract:

The multi-carrier system is hybrid energy network which takes electric, natural gas, heat and others as power conversion hubs through energy hub （EH）, and is a development trend of the future energy interconnection structure. This paper discusses the structure and operation mechanism of multi-carrier system, and proposes the planning-operation co-optimization model of gas-heat-electricity co-generation network with taking EH as dispatching hub. This model takes the minimum total cost of planning and construction, scheduling and operation, reliability and other aspects as the objective function. The model considers the constraint conditions that the system can meet the network constraints of each energy system, the energy balance of EH, etc., it is a mixed integer optimization problem in which the objective function and the constraint condition both contain nonlinear terms. Therefore, we adopt linearization and large-scale optimization method to solve the model, in order to make the planning and operation of multi-carrier system to achieve the optimal. Finally, we compare and analyze different situations in example simulation, such as coupling and non-coupling planning, and coupling system considering different types of components, whose results verify the superiority and effectiveness of the proposed model and processing method.

Key words: multi-carrier system, energy hub（EH）, planning-operation co-optimization, economic dispatch

CLC Number:

TM 74

SUN Kaihua, HAN Dong,YAN Zheng, MA Junyu. Planning-Operation Co-Optimization of Gas-Heat-Electricity Co-Generation Network[J]. Electric Power Construction, 2016, 37(4): 22-28.

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