Harmonic Compensation via Grid-Tied Three-Phase Inverter with Variable Structure I&I Observer-Based Control Scheme
The power inverter topologies are indispensable devices to incorporate distributed generation schemes, like photovoltaic energy sources into the AC main. The nonlinear behavior of the power inverter draws a challenge when it comes to their control policy, rendering linear control methods often inade...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-09-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/15/17/6419 |
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| author | Manuel Flota-Bañuelos Homero Miranda-Vidales Bernardo Fernández Luis J. Ricalde A. Basam J. Medina |
| author_facet | Manuel Flota-Bañuelos Homero Miranda-Vidales Bernardo Fernández Luis J. Ricalde A. Basam J. Medina |
| author_sort | Manuel Flota-Bañuelos |
| collection | DOAJ |
| description | The power inverter topologies are indispensable devices to incorporate distributed generation schemes, like photovoltaic energy sources into the AC main. The nonlinear behavior of the power inverter draws a challenge when it comes to their control policy, rendering linear control methods often inadequate for the application. The control complexity can be further increased by the LCL filters, which are the preferred way to mitigate the current ripple caused by the inverter switching. This paper presents a robust variable structure control for a three-phase grid-tied inverter with an LCL filter. As well to the benefits of the sliding mode control (SMC), which is one of the control methods applied by power converters founded in literature, the proposed control scheme features a novel partial state observer based on the immersion and invariance technique, which thanks to its inherent robustness and speed of convergence is adequate for this application. This observer eliminates the need for physical current sensors, decreasing the overall cost and size, as well as probable sources of noise. The proposed controller is meant for a three-phase grid-tied inverter to inject active power to the grid while harmonics generated by nonlinear loads are compensated. The simulation results prove the effectiveness of the proposed method by compensating for current harmonics produced by the nonlinear loads and maintaining a low total harmonic distortion as recommended by the STD-IEEE519-2014, regardless of whether the system provides active power or not. |
| first_indexed | 2024-03-10T01:51:06Z |
| format | Article |
| id | doaj.art-7b1dd943ea354f888cc81ebedc8a2dd9 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-10T01:51:06Z |
| publishDate | 2022-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-7b1dd943ea354f888cc81ebedc8a2dd92023-11-23T13:05:51ZengMDPI AGEnergies1996-10732022-09-011517641910.3390/en15176419Harmonic Compensation via Grid-Tied Three-Phase Inverter with Variable Structure I&I Observer-Based Control SchemeManuel Flota-Bañuelos0Homero Miranda-Vidales1Bernardo Fernández2Luis J. Ricalde3A. Basam4J. Medina5Facultad de Ingeniería, Universidad Autónoma de Yucatán, Merida 97310, MexicoFacultad de Ingeniería, Universidad Autónoma de San Luis Potosí, Av. Dr. Manuel Nava 304, Zona Universitaria, San Luis Potosi 78210, MexicoFacultad de Ingeniería, Universidad Autónoma de Yucatán, Merida 97310, MexicoFacultad de Ingeniería, Universidad Autónoma de Yucatán, Merida 97310, MexicoFacultad de Ingeniería, Universidad Autónoma de Yucatán, Merida 97310, MexicoFacultad de Ingeniería, Universidad Autónoma de Yucatán, Merida 97310, MexicoThe power inverter topologies are indispensable devices to incorporate distributed generation schemes, like photovoltaic energy sources into the AC main. The nonlinear behavior of the power inverter draws a challenge when it comes to their control policy, rendering linear control methods often inadequate for the application. The control complexity can be further increased by the LCL filters, which are the preferred way to mitigate the current ripple caused by the inverter switching. This paper presents a robust variable structure control for a three-phase grid-tied inverter with an LCL filter. As well to the benefits of the sliding mode control (SMC), which is one of the control methods applied by power converters founded in literature, the proposed control scheme features a novel partial state observer based on the immersion and invariance technique, which thanks to its inherent robustness and speed of convergence is adequate for this application. This observer eliminates the need for physical current sensors, decreasing the overall cost and size, as well as probable sources of noise. The proposed controller is meant for a three-phase grid-tied inverter to inject active power to the grid while harmonics generated by nonlinear loads are compensated. The simulation results prove the effectiveness of the proposed method by compensating for current harmonics produced by the nonlinear loads and maintaining a low total harmonic distortion as recommended by the STD-IEEE519-2014, regardless of whether the system provides active power or not.https://www.mdpi.com/1996-1073/15/17/6419sliding mode controlharmonic distortiongrid-tied inverters |
| spellingShingle | Manuel Flota-Bañuelos Homero Miranda-Vidales Bernardo Fernández Luis J. Ricalde A. Basam J. Medina Harmonic Compensation via Grid-Tied Three-Phase Inverter with Variable Structure I&I Observer-Based Control Scheme Energies sliding mode control harmonic distortion grid-tied inverters |
| title | Harmonic Compensation via Grid-Tied Three-Phase Inverter with Variable Structure I&I Observer-Based Control Scheme |
| title_full | Harmonic Compensation via Grid-Tied Three-Phase Inverter with Variable Structure I&I Observer-Based Control Scheme |
| title_fullStr | Harmonic Compensation via Grid-Tied Three-Phase Inverter with Variable Structure I&I Observer-Based Control Scheme |
| title_full_unstemmed | Harmonic Compensation via Grid-Tied Three-Phase Inverter with Variable Structure I&I Observer-Based Control Scheme |
| title_short | Harmonic Compensation via Grid-Tied Three-Phase Inverter with Variable Structure I&I Observer-Based Control Scheme |
| title_sort | harmonic compensation via grid tied three phase inverter with variable structure i i observer based control scheme |
| topic | sliding mode control harmonic distortion grid-tied inverters |
| url | https://www.mdpi.com/1996-1073/15/17/6419 |
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