Optimal coordinated energy dispatch of a multi-energy microgrid in grid-connected and islanded modes
This paper proposes a system-wide optimal coordinated energy dispatch method for a multi-energy microgrid in both the grid-connected and islanded modes. The studied microgrid consists of multiple energy carriers covering the controllable generation units (fuel cell, electric boiler, combined cooling...
| Main Authors: | , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2020
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| Online Access: | https://hdl.handle.net/10356/140856 |
| _version_ | 1826111552202211328 |
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| author | Li, Zhengmao Xu, Yan |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Li, Zhengmao Xu, Yan |
| author_sort | Li, Zhengmao |
| collection | NTU |
| description | This paper proposes a system-wide optimal coordinated energy dispatch method for a multi-energy microgrid in both the grid-connected and islanded modes. The studied microgrid consists of multiple energy carriers covering the controllable generation units (fuel cell, electric boiler, combined cooling, heat and power plant and electric chiller), uncontrollable generation units (wind turbine and photovoltaic cell) and energy storage devices (battery storage, heat storage tank and ice storage tank). The proposed energy dispatch method aims to minimize the microgrid net operating cost and enhance the dispatch flexibility in supplying power, heat and cooling in the day-ahead energy market. For both the grid-connected and islanded microgrid, their dispatch models are formulated as the mixed-integer linear programming problems, which can be efficiently solved by the commercial solvers. Comprehensive case studies are performed to evaluate the effectiveness of the proposed method and then compared with the traditional dispatch methods which supply power and heat/cooling energies separately. Simulation results demonstrate that the proposed method can achieve much higher operating efficiency. |
| first_indexed | 2024-10-01T02:52:37Z |
| format | Journal Article |
| id | ntu-10356/140856 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T02:52:37Z |
| publishDate | 2020 |
| record_format | dspace |
| spelling | ntu-10356/1408562020-06-02T08:23:42Z Optimal coordinated energy dispatch of a multi-energy microgrid in grid-connected and islanded modes Li, Zhengmao Xu, Yan School of Electrical and Electronic Engineering Engineering::Electrical and electronic engineering Multi-energy Microgrids Combined Cooling This paper proposes a system-wide optimal coordinated energy dispatch method for a multi-energy microgrid in both the grid-connected and islanded modes. The studied microgrid consists of multiple energy carriers covering the controllable generation units (fuel cell, electric boiler, combined cooling, heat and power plant and electric chiller), uncontrollable generation units (wind turbine and photovoltaic cell) and energy storage devices (battery storage, heat storage tank and ice storage tank). The proposed energy dispatch method aims to minimize the microgrid net operating cost and enhance the dispatch flexibility in supplying power, heat and cooling in the day-ahead energy market. For both the grid-connected and islanded microgrid, their dispatch models are formulated as the mixed-integer linear programming problems, which can be efficiently solved by the commercial solvers. Comprehensive case studies are performed to evaluate the effectiveness of the proposed method and then compared with the traditional dispatch methods which supply power and heat/cooling energies separately. Simulation results demonstrate that the proposed method can achieve much higher operating efficiency. MOE (Min. of Education, S’pore) 2020-06-02T08:23:42Z 2020-06-02T08:23:42Z 2017 Journal Article Li, Z., & Xu, Y. (2018). Optimal coordinated energy dispatch of a multi-energy microgrid in grid-connected and islanded modes. Applied Energy, 210, 974-986. doi:10.1016/j.apenergy.2017.08.197 0306-2619 https://hdl.handle.net/10356/140856 10.1016/j.apenergy.2017.08.197 2-s2.0-85028529810 210 974 986 en Applied Energy © 2017 Elsevier Ltd. All rights reserved. |
| spellingShingle | Engineering::Electrical and electronic engineering Multi-energy Microgrids Combined Cooling Li, Zhengmao Xu, Yan Optimal coordinated energy dispatch of a multi-energy microgrid in grid-connected and islanded modes |
| title | Optimal coordinated energy dispatch of a multi-energy microgrid in grid-connected and islanded modes |
| title_full | Optimal coordinated energy dispatch of a multi-energy microgrid in grid-connected and islanded modes |
| title_fullStr | Optimal coordinated energy dispatch of a multi-energy microgrid in grid-connected and islanded modes |
| title_full_unstemmed | Optimal coordinated energy dispatch of a multi-energy microgrid in grid-connected and islanded modes |
| title_short | Optimal coordinated energy dispatch of a multi-energy microgrid in grid-connected and islanded modes |
| title_sort | optimal coordinated energy dispatch of a multi energy microgrid in grid connected and islanded modes |
| topic | Engineering::Electrical and electronic engineering Multi-energy Microgrids Combined Cooling |
| url | https://hdl.handle.net/10356/140856 |
| work_keys_str_mv | AT lizhengmao optimalcoordinatedenergydispatchofamultienergymicrogridingridconnectedandislandedmodes AT xuyan optimalcoordinatedenergydispatchofamultienergymicrogridingridconnectedandislandedmodes |