Designing a unified damping and cross-coupling rejection controller for LCL filtered PV-based islanded microgrids
To meet up with the increasing power demands globally, renewables have come into focus recently. Due to the unpredictable nature of the energy in Microgrids (MGs), it generates oscillation or harmonics into the power. Smooth power performance can be obtained by LCL filter, however, that produces und...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2022-11-01
|
| Series: | Engineering Science and Technology, an International Journal |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2215098622001537 |
| _version_ | 1817975707147436032 |
|---|---|
| author | Dristi Datta Subrata K. Sarker Md. Rafiqul Islam Sheikh |
| author_facet | Dristi Datta Subrata K. Sarker Md. Rafiqul Islam Sheikh |
| author_sort | Dristi Datta |
| collection | DOAJ |
| description | To meet up with the increasing power demands globally, renewables have come into focus recently. Due to the unpredictable nature of the energy in Microgrids (MGs), it generates oscillation or harmonics into the power. Smooth power performance can be obtained by LCL filter, however, that produces undamped resonance frequency that significantly decreases the system performance. This paper presents an improved design of a multi-input multi-output (MIMO) Integral-Linear-Quadratic-Gaussian (ILQG) control approach for LCL filtered photovoltaic (PV) based islanded microgrid (MG) system. In this study, we have proposed a unified controller that can reject the oscillation and cross-coupling effect from the system. The architecture of the proposed controller is based on the artificial neural network (ANN) based maximum power point tracking (MPPT) algorithm. The performance of the controller is verified by time- and frequency domain response and proves better performance in terms of bandwidth, damping, tracking, and reduction of cross-coupling effects for LCL filtered PV-based islanded MGs. Additionally, the robustness of the controller is also analyzed by shifting the resonance frequency of the LCL filter by varying the inductor and capacitor. Different types of load structures are also considered for the performance analysis of the proposed unified controller. Additionally, a comparative analysis in terms of bandwidth and qualitative content is further studied here to explicit the high effectiveness of the proposed unified controller. Simulation results of open- and closed-loop systems also prove the high effectiveness of the controller under different load conditions. |
| first_indexed | 2024-04-13T21:53:36Z |
| format | Article |
| id | doaj.art-3b2f50969a0f467ab5fe58be5eacc4cd |
| institution | Directory Open Access Journal |
| issn | 2215-0986 |
| language | English |
| last_indexed | 2024-04-13T21:53:36Z |
| publishDate | 2022-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Engineering Science and Technology, an International Journal |
| spelling | doaj.art-3b2f50969a0f467ab5fe58be5eacc4cd2022-12-22T02:28:21ZengElsevierEngineering Science and Technology, an International Journal2215-09862022-11-0135101244Designing a unified damping and cross-coupling rejection controller for LCL filtered PV-based islanded microgridsDristi Datta0Subrata K. Sarker1Md. Rafiqul Islam Sheikh2Department of Electrical & Electronic Engineering, Uttara University, Dhaka 1230, Bangladesh; Corresponding author.Department of Mechatronics Engineering, Rajshahi University of Engineering & Technology, Rajshahi 6204, BangladeshDepartment of Electrical & Electronic Engineering, Rajshahi University of Engineering & Technology, Rajshahi 6204, BangladeshTo meet up with the increasing power demands globally, renewables have come into focus recently. Due to the unpredictable nature of the energy in Microgrids (MGs), it generates oscillation or harmonics into the power. Smooth power performance can be obtained by LCL filter, however, that produces undamped resonance frequency that significantly decreases the system performance. This paper presents an improved design of a multi-input multi-output (MIMO) Integral-Linear-Quadratic-Gaussian (ILQG) control approach for LCL filtered photovoltaic (PV) based islanded microgrid (MG) system. In this study, we have proposed a unified controller that can reject the oscillation and cross-coupling effect from the system. The architecture of the proposed controller is based on the artificial neural network (ANN) based maximum power point tracking (MPPT) algorithm. The performance of the controller is verified by time- and frequency domain response and proves better performance in terms of bandwidth, damping, tracking, and reduction of cross-coupling effects for LCL filtered PV-based islanded MGs. Additionally, the robustness of the controller is also analyzed by shifting the resonance frequency of the LCL filter by varying the inductor and capacitor. Different types of load structures are also considered for the performance analysis of the proposed unified controller. Additionally, a comparative analysis in terms of bandwidth and qualitative content is further studied here to explicit the high effectiveness of the proposed unified controller. Simulation results of open- and closed-loop systems also prove the high effectiveness of the controller under different load conditions.http://www.sciencedirect.com/science/article/pii/S2215098622001537Damping controllerOscillation and cross-coupling effectLCL filterPV microgrids |
| spellingShingle | Dristi Datta Subrata K. Sarker Md. Rafiqul Islam Sheikh Designing a unified damping and cross-coupling rejection controller for LCL filtered PV-based islanded microgrids Engineering Science and Technology, an International Journal Damping controller Oscillation and cross-coupling effect LCL filter PV microgrids |
| title | Designing a unified damping and cross-coupling rejection controller for LCL filtered PV-based islanded microgrids |
| title_full | Designing a unified damping and cross-coupling rejection controller for LCL filtered PV-based islanded microgrids |
| title_fullStr | Designing a unified damping and cross-coupling rejection controller for LCL filtered PV-based islanded microgrids |
| title_full_unstemmed | Designing a unified damping and cross-coupling rejection controller for LCL filtered PV-based islanded microgrids |
| title_short | Designing a unified damping and cross-coupling rejection controller for LCL filtered PV-based islanded microgrids |
| title_sort | designing a unified damping and cross coupling rejection controller for lcl filtered pv based islanded microgrids |
| topic | Damping controller Oscillation and cross-coupling effect LCL filter PV microgrids |
| url | http://www.sciencedirect.com/science/article/pii/S2215098622001537 |
| work_keys_str_mv | AT dristidatta designingaunifieddampingandcrosscouplingrejectioncontrollerforlclfilteredpvbasedislandedmicrogrids AT subrataksarker designingaunifieddampingandcrosscouplingrejectioncontrollerforlclfilteredpvbasedislandedmicrogrids AT mdrafiqulislamsheikh designingaunifieddampingandcrosscouplingrejectioncontrollerforlclfilteredpvbasedislandedmicrogrids |