Multi-Energy Flow Calculation Considering the Convexification Network Constraints for the Integrated Energy System
To alleviate environmental pollution and improve the energy efficiency of end-user utilization, the integrated energy systems (IESs) have become an important direction of energy structure adjustment over the world. The widespread application of the coupling units, such as gas-fired generators, gas-f...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2021-07-01
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| Series: | Frontiers in Energy Research |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/fenrg.2021.718151/full |
| _version_ | 1819072099976740864 |
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| author | Danlei Chen Xiaoqing Bai |
| author_facet | Danlei Chen Xiaoqing Bai |
| author_sort | Danlei Chen |
| collection | DOAJ |
| description | To alleviate environmental pollution and improve the energy efficiency of end-user utilization, the integrated energy systems (IESs) have become an important direction of energy structure adjustment over the world. The widespread application of the coupling units, such as gas-fired generators, gas-fired boilers, and combined heat and power (CHP), increases the connection among electrical, natural gas, and heating systems in IESs. This study proposes a mixed-integer nonlinear programming (MINLP) model combining electrical, natural gas, and heating systems, as well as the coupling components, such as CHP and gas-fired generators. The proposed model is applicable for either the radial multi-energy network or the meshed multi-energy network. Since the proposed MINLP model is difficult to be solved, the second-order cone and linearized techniques are used to transform the non-convex fundamental matrix formulation of multi-energy network equations to a mixed-integer convex multi-energy flow model, which can improve the computational efficiency significantly. Moreover, the potential convergence problem of the original model can also be avoided. A simulation of IEEE 14-node electrical system, 6-node natural gas system, and 23-node heating system are studied to verify the accuracy and computational rapidity of the proposed method. |
| first_indexed | 2024-12-21T17:32:21Z |
| format | Article |
| id | doaj.art-543d87200e9e4638a6f8a9e567c515fe |
| institution | Directory Open Access Journal |
| issn | 2296-598X |
| language | English |
| last_indexed | 2024-12-21T17:32:21Z |
| publishDate | 2021-07-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Energy Research |
| spelling | doaj.art-543d87200e9e4638a6f8a9e567c515fe2022-12-21T18:55:53ZengFrontiers Media S.A.Frontiers in Energy Research2296-598X2021-07-01910.3389/fenrg.2021.718151718151Multi-Energy Flow Calculation Considering the Convexification Network Constraints for the Integrated Energy SystemDanlei ChenXiaoqing BaiTo alleviate environmental pollution and improve the energy efficiency of end-user utilization, the integrated energy systems (IESs) have become an important direction of energy structure adjustment over the world. The widespread application of the coupling units, such as gas-fired generators, gas-fired boilers, and combined heat and power (CHP), increases the connection among electrical, natural gas, and heating systems in IESs. This study proposes a mixed-integer nonlinear programming (MINLP) model combining electrical, natural gas, and heating systems, as well as the coupling components, such as CHP and gas-fired generators. The proposed model is applicable for either the radial multi-energy network or the meshed multi-energy network. Since the proposed MINLP model is difficult to be solved, the second-order cone and linearized techniques are used to transform the non-convex fundamental matrix formulation of multi-energy network equations to a mixed-integer convex multi-energy flow model, which can improve the computational efficiency significantly. Moreover, the potential convergence problem of the original model can also be avoided. A simulation of IEEE 14-node electrical system, 6-node natural gas system, and 23-node heating system are studied to verify the accuracy and computational rapidity of the proposed method.https://www.frontiersin.org/articles/10.3389/fenrg.2021.718151/fullcombined heat and powerconvexificationcoupling unitsintegrated energy systemsmulti-energy flow |
| spellingShingle | Danlei Chen Xiaoqing Bai Multi-Energy Flow Calculation Considering the Convexification Network Constraints for the Integrated Energy System Frontiers in Energy Research combined heat and power convexification coupling units integrated energy systems multi-energy flow |
| title | Multi-Energy Flow Calculation Considering the Convexification Network Constraints for the Integrated Energy System |
| title_full | Multi-Energy Flow Calculation Considering the Convexification Network Constraints for the Integrated Energy System |
| title_fullStr | Multi-Energy Flow Calculation Considering the Convexification Network Constraints for the Integrated Energy System |
| title_full_unstemmed | Multi-Energy Flow Calculation Considering the Convexification Network Constraints for the Integrated Energy System |
| title_short | Multi-Energy Flow Calculation Considering the Convexification Network Constraints for the Integrated Energy System |
| title_sort | multi energy flow calculation considering the convexification network constraints for the integrated energy system |
| topic | combined heat and power convexification coupling units integrated energy systems multi-energy flow |
| url | https://www.frontiersin.org/articles/10.3389/fenrg.2021.718151/full |
| work_keys_str_mv | AT danleichen multienergyflowcalculationconsideringtheconvexificationnetworkconstraintsfortheintegratedenergysystem AT xiaoqingbai multienergyflowcalculationconsideringtheconvexificationnetworkconstraintsfortheintegratedenergysystem |