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| Optimization Model of Charging Microgrid Interconnection System Considering Dynamic Constraints of Energy Supply Reliability and Carbon Emission Reduction |
| Yan Jiajia1, Teng Yun1, Qiu Shi1, Chen Zhe2 |
1. School of Electrical Engineering Shenyang University of Technology Shenyang 110870 China;
2. Depth Energy Technology Aalborg University Aalborg DK-9220 Denmark |
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Abstract Promoting the large-scale development of the new energy vehicle industry is an important way to realize the low-carbon transformation of transportation and multi-energy systems. In order to ensure the improvement of system energy supply reliability and carbon emission reduction capability, an optimization model of charging microgrid interconnection system considering dynamic constraints of energy supply reliability and carbon emission reduction was constructed in this paper. Firstly, the operation characteristics of each microgrid and the energy interaction characteristics between microgrids are studied, and the model of the multi-energy charging microgrids interconnection system with low carbon emissions(MCMIS-LCEs) was established. On this basis, a multi-energy supply and carbon emission reduction coordination model was established; Secondly, considering the dynamic impact of energy conversion, storage and charging equipment failures on the energy supply reliability of the MCMIS-LCEs, a multi-state reliability dynamic quantitative evaluation model was established according to the characteristics of equipment failures; Then, under the conditions of energy supply reliability constraints and operation constraints of interconnected systems, a multi-objective optimization model of the MCMIS-LCEs considering carbon emission reduction, charging time and energy supply cost coordination was established; Finally, simulation verification is performed based on the actual energy and vehicle flow data of the charging station. The simulation results demonstrate that the MCMIS-LCEs and its optimization model proposed in this paper can realize the efficient coordination between multi-energy conversion, storage and charging equipment, and improve the economy, carbon emission reduction capacity, waste process capacity, grid regulation capacity, and the reliability of energy supply of the whole interconnected system.
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Received: 21 January 2022
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2022, Vol. 37 
