Collaborative Autonomous Optimization of Interconnected Multi-Energy Systems with Two-Stage Transactive Control Framework

Yizhi Cheng, Peichao Zhang and Xuezhi Liu
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Yizhi Cheng: Department of Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
Peichao Zhang: Department of Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
Xuezhi Liu: Department of Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China

Energies, 2019, vol. 13, issue 1, 1-21

Abstract: Motivated by the benefits of multi-energy integration, this paper establishes a bi-level two-stage framework based on transactive control, to achieve the optimal energy provision among interconnected multi-energy systems (MESs). At the lower level, each MES autonomously determines the optimal setpoints of its controllable assets by solving a cost minimization problem, in which rolling horizon optimization is adopted to deal with the load and renewable energies’ stochastic features. A technique is further implemented for optimization model convexification by relaxing storages’ complementarity constraints, and its mathematical proof verifies the exactness of the relaxation. At the upper level, a coordinator is responsible for minimizing total costs of interconnected MESs while preventing transformer overloading. This collaborative problem is solved iteratively in a proposed two-stage transactive control framework that is compatible with operational time requirement while retaining scalability, information privacy and operation authority of each MES. The effectiveness of the proposed framework is verified by simulation cases that conduct a detailed analysis of the collaborative autonomous optimization mechanism.

Keywords: multi-energy system; transactive control; two-stage bi-level optimization; constraint relaxation (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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