Bumpless Optimal Control over Multi-Objective Microgrids with Mode-Dependent Controllers
To avoid transient jumps at the switching time between two operating modes in microgrids, this paper proposes a linear quadratic-based optimal bumpless controller with two degrees of freedom (DOF) to suppress the transient disturbance and realize seamless switching between mode-dependent controllers...
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-09-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/12/19/3619 |
| _version_ | 1798040167993311232 |
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| author | Ying Wu Josep M. Guerrero Juan C. Vasquez Yanpeng Wu |
| author_facet | Ying Wu Josep M. Guerrero Juan C. Vasquez Yanpeng Wu |
| author_sort | Ying Wu |
| collection | DOAJ |
| description | To avoid transient jumps at the switching time between two operating modes in microgrids, this paper proposes a linear quadratic-based optimal bumpless controller with two degrees of freedom (DOF) to suppress the transient disturbance and realize seamless switching between mode-dependent controllers. By minimizing the transient performance criteria, which contains both the reference tracking error and the controller tracking error, this bumpless algorithm not only effectively forces the latent controller to track the active controller, but also guarantees the plant output track the reference as close as possible. For the different control objectives of the two modes, a current-based networked PI controller is proposed in islanded mode to achieve power sharing, as well as suppressing circulating current, and a power-based PI controller is designed in grid connected mode to supply required P and Q, as well as effectively synchronize f and v safely with the main grid. A microgrid test system with two operation modes was built in Matlab/Simulink. Several operating cases were executed to verity the feasibility and effectiveness of this optimal bumpless control strategy. |
| first_indexed | 2024-04-11T22:03:44Z |
| format | Article |
| id | doaj.art-fba6cead29bc4945b49a90896202574b |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-11T22:03:44Z |
| publishDate | 2019-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-fba6cead29bc4945b49a90896202574b2022-12-22T04:00:48ZengMDPI AGEnergies1996-10732019-09-011219361910.3390/en12193619en12193619Bumpless Optimal Control over Multi-Objective Microgrids with Mode-Dependent ControllersYing Wu0Josep M. Guerrero1Juan C. Vasquez2Yanpeng Wu3School of Computer Science, Xi’an Shiyou University, Xi’an 710065, ChinaDepartment of Energy Technology, Aalborg University, 9220 Aalborg, DenmarkDepartment of Energy Technology, Aalborg University, 9220 Aalborg, DenmarkDepartment of Energy Technology, Aalborg University, 9220 Aalborg, DenmarkTo avoid transient jumps at the switching time between two operating modes in microgrids, this paper proposes a linear quadratic-based optimal bumpless controller with two degrees of freedom (DOF) to suppress the transient disturbance and realize seamless switching between mode-dependent controllers. By minimizing the transient performance criteria, which contains both the reference tracking error and the controller tracking error, this bumpless algorithm not only effectively forces the latent controller to track the active controller, but also guarantees the plant output track the reference as close as possible. For the different control objectives of the two modes, a current-based networked PI controller is proposed in islanded mode to achieve power sharing, as well as suppressing circulating current, and a power-based PI controller is designed in grid connected mode to supply required P and Q, as well as effectively synchronize f and v safely with the main grid. A microgrid test system with two operation modes was built in Matlab/Simulink. Several operating cases were executed to verity the feasibility and effectiveness of this optimal bumpless control strategy.https://www.mdpi.com/1996-1073/12/19/3619microgridstwo degrees of freedombumpless transfermode-dependent controlleroptimal control |
| spellingShingle | Ying Wu Josep M. Guerrero Juan C. Vasquez Yanpeng Wu Bumpless Optimal Control over Multi-Objective Microgrids with Mode-Dependent Controllers Energies microgrids two degrees of freedom bumpless transfer mode-dependent controller optimal control |
| title | Bumpless Optimal Control over Multi-Objective Microgrids with Mode-Dependent Controllers |
| title_full | Bumpless Optimal Control over Multi-Objective Microgrids with Mode-Dependent Controllers |
| title_fullStr | Bumpless Optimal Control over Multi-Objective Microgrids with Mode-Dependent Controllers |
| title_full_unstemmed | Bumpless Optimal Control over Multi-Objective Microgrids with Mode-Dependent Controllers |
| title_short | Bumpless Optimal Control over Multi-Objective Microgrids with Mode-Dependent Controllers |
| title_sort | bumpless optimal control over multi objective microgrids with mode dependent controllers |
| topic | microgrids two degrees of freedom bumpless transfer mode-dependent controller optimal control |
| url | https://www.mdpi.com/1996-1073/12/19/3619 |
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