Distributed Secondary Control Method for Islanded Microgrids With Communication Constraints
In this paper, a two-layer model for islanded microgrids with communication constraints is proposed, where a key component of the model is a top layer communication network composed of agents over the bottom layer microgrid. Agents on the communication network collect present states of distributed g...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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IEEE
2018-01-01
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| Series: | IEEE Access |
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| Online Access: | https://ieeexplore.ieee.org/document/8066279/ |
| _version_ | 1818877430614458368 |
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| author | Wenfa Kang Qiang Li Mengkai Gao Xingxin Li Jianguo Wang Ruilin Xu Minyou Chen |
| author_facet | Wenfa Kang Qiang Li Mengkai Gao Xingxin Li Jianguo Wang Ruilin Xu Minyou Chen |
| author_sort | Wenfa Kang |
| collection | DOAJ |
| description | In this paper, a two-layer model for islanded microgrids with communication constraints is proposed, where a key component of the model is a top layer communication network composed of agents over the bottom layer microgrid. Agents on the communication network collect present states of distributed generators to which they connect and exchange information with neighbors according to the asynchronous communication protocol. Furthermore, a systematic method is presented to derive a set of control laws for agents from a given communication network. However, communication constraints, such as packet losses, may occur on the communication network. Therefore, a power estimation term is employed and added into the control laws in order to alleviate the negative impact on the performance. Furthermore, two theorems are proved, which ensure the power balance in the system and the proportional outputs of distributed generators, while the proposition gives the convergence of the control laws with the power estimation term. Finally, simulations are carried out and the results show that the fluctuations of the frequency and voltage are small and meet the requirements, when fluctuations of load demand and environmental conditions are considered. Moreover, the proportional outputs of distributed generators still can be achieved, even if the probability of packet losses is high. |
| first_indexed | 2024-12-19T13:58:10Z |
| format | Article |
| id | doaj.art-741ee62fa32c409eae4a2a4f5310afe5 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-19T13:58:10Z |
| publishDate | 2018-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-741ee62fa32c409eae4a2a4f5310afe52022-12-21T20:18:31ZengIEEEIEEE Access2169-35362018-01-0165812582110.1109/ACCESS.2017.27623568066279Distributed Secondary Control Method for Islanded Microgrids With Communication ConstraintsWenfa Kang0Qiang Li1https://orcid.org/0000-0002-1899-2808Mengkai Gao2Xingxin Li3Jianguo Wang4Ruilin Xu5Minyou Chen6State Key Laboratory of Power Transmission Equipment & System Security and New Technology, School of Electrical Engineering, Chongqing University, Chongqing, ChinaState Key Laboratory of Power Transmission Equipment & System Security and New Technology, School of Electrical Engineering, Chongqing University, Chongqing, ChinaState Key Laboratory of Power Transmission Equipment & System Security and New Technology, School of Electrical Engineering, Chongqing University, Chongqing, ChinaChongqing University–University of Cincinnati Joint Co-Op Institute, Chongqing, ChinaState Grid Chongqing Electrical Power Company, Chongqing, ChinaState Grid Electric Power Research Institute of Chongqing, Chongqing, ChinaState Key Laboratory of Power Transmission Equipment & System Security and New Technology, School of Electrical Engineering, Chongqing University, Chongqing, ChinaIn this paper, a two-layer model for islanded microgrids with communication constraints is proposed, where a key component of the model is a top layer communication network composed of agents over the bottom layer microgrid. Agents on the communication network collect present states of distributed generators to which they connect and exchange information with neighbors according to the asynchronous communication protocol. Furthermore, a systematic method is presented to derive a set of control laws for agents from a given communication network. However, communication constraints, such as packet losses, may occur on the communication network. Therefore, a power estimation term is employed and added into the control laws in order to alleviate the negative impact on the performance. Furthermore, two theorems are proved, which ensure the power balance in the system and the proportional outputs of distributed generators, while the proposition gives the convergence of the control laws with the power estimation term. Finally, simulations are carried out and the results show that the fluctuations of the frequency and voltage are small and meet the requirements, when fluctuations of load demand and environmental conditions are considered. Moreover, the proportional outputs of distributed generators still can be achieved, even if the probability of packet losses is high.https://ieeexplore.ieee.org/document/8066279/Distributed controlenergy managementmicrogridsmulti-agent system (MAS)networked control systemssecondary control |
| spellingShingle | Wenfa Kang Qiang Li Mengkai Gao Xingxin Li Jianguo Wang Ruilin Xu Minyou Chen Distributed Secondary Control Method for Islanded Microgrids With Communication Constraints IEEE Access Distributed control energy management microgrids multi-agent system (MAS) networked control systems secondary control |
| title | Distributed Secondary Control Method for Islanded Microgrids With Communication Constraints |
| title_full | Distributed Secondary Control Method for Islanded Microgrids With Communication Constraints |
| title_fullStr | Distributed Secondary Control Method for Islanded Microgrids With Communication Constraints |
| title_full_unstemmed | Distributed Secondary Control Method for Islanded Microgrids With Communication Constraints |
| title_short | Distributed Secondary Control Method for Islanded Microgrids With Communication Constraints |
| title_sort | distributed secondary control method for islanded microgrids with communication constraints |
| topic | Distributed control energy management microgrids multi-agent system (MAS) networked control systems secondary control |
| url | https://ieeexplore.ieee.org/document/8066279/ |
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