Addressing the issue of inconsistent energy storage requirements and dishonest transactions in microgrids, a multimicrogrid optimization considering shared energy storage and cooperative fraud is proposed. Firstly, the framework of multi-microgrid system considering shared energy storage is established. Secondly, the optimization model of multimicrogrid system considering shared energy storage and false information is established. Based on Nash negotiation theory, the problem split into two sub-problems: minimizing system costs and cooperative fraud distributing revenue. Finally, the model is solved using the Alternating Direction Method of Multipliers. The simulation results show that the proposed method can maximize the system benefits and ensure the interests of all subjects.
KEYWORDS: Solar energy, Wind energy, Turbines, Power supplies, Absorption, Power grids, Systems modeling, Photovoltaics, Energy efficiency, Solar radiation models
In the process of microgrid operation, there are many unstable factors in the power generation mode such as wind and solar. To solve the problem of improving the processing capability of the micro-grid with cooling, heat and power supply system, and to cope with the power fluctuation in the process of wind and solar energy, this paper plans to carry out the research on the flexibility optimization dispatch problem of microgrid. During the whole operation of the micro-grid, the cooling, heat and electricity system has the characters of complementary supply and demand, as well as supplementary cooling and thermal load. This paper uses a variety of flexible resources on the energy supply side and demand side to establish the balance. The balance is co-ordination of supply and demand and analyzes the flexibility. Then, the model with the lowest operating cost, the lowest cost of environmental pollution control and the highest flexibility of the microgrid system is established. The example calculation shows that this optimized low temperature combined power generation system can improve the flexibility of the used system, and on this premise, the reducing the system of environmental pollution cost and the operation cost.
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