Optimal energy management in multi-carrier microgrids: an MILP approach

Abstract

With the increasing interdependence of various energy carriers, the operation of power systems is found to correlate closely with the limitations on the other energy infrastructures. This paper presents a mixed-integer linear programming (MILP) model for the microgrid (MG) optimal scheduling considering technical and economic ties between electricity and natural gas (NG) systems. In the proposed methodology, different energy converters and storages, including combined heat and power (CHP) units, electricity/heat storage units, and distributed energy resources (DERs) are considered. The proposed model allows the MG operator to minimize the operation cost of the MG while different operational limitations on the energy hub are satisfied. The model is developed based on AC power flow constraints so as to respect reactive power and voltage security constraints. The efficiency and robustness of the proposed MILP formulation are successfully verified using a large-scale test MG.

Multi-microgrid Energy Management Systems: Architecture, Communication, and Scheduling Strategies

“…The multi-energy microgrid can be modelled as an energy hub, in which the production, conversion, storage and consumption of diff erent types of energy carriers are formed to satisfy multi-energy demands [121], [122]. The multi-energy management strategies aim at solving the scheduling problems of the multi-energy coordination and exchanges among interconnected microgrids with the multi-energy couplings and inherent nonconvexities [123].…”

Network-Constrained Optimal Scheduling of Multi-Carrier Residential Energy Systems: A Chance-Constrained Approach

“…The uncertainties associated with renewable energy generation and demand variations are handled by chance constrained programming method (CCPM) based on Normal probability distribution functions (PDF). In [26], a deterministic MILP model is proposed for optimal scheduling of multi-energy microgrids considering technical and economic relations of both electricity and natural gas systems. The research in [27] proposes a rolling dispatch strategy and operational flexibility metric to quantify the ability of multienergy microgrids equipped with CHP units to deal with uncertainties.…”

Transactive Energy Trading in Reconfigurable Multi-carrier Energy Systems

“…The cooperated scheduling and energy trading among EHs in TEM gain more and more concerns [6], [7]. TEM introduces new challenges for distribution system operators (DSOs) since the unconstrained TE trading between EHs connected with distribution system could change the status of power systems, increase power losses, and lead to congestion problems.…”