Enhanced Control of Three-Phase Grid-Connected Renewables with Fault Ride-Through Capability under Voltage Sags
The uninterruptible operation of grid-connected renewables under the occurrence of grid voltage sags is addressed in this work. This is achieved due to the incorporation of an enhanced control algorithm of a renewable source. The low-voltage ride-through algorithm was developed in accordance to the...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-04-01
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| Series: | Electronics |
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| Online Access: | https://www.mdpi.com/2079-9292/11/9/1404 |
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| author | Alexis B. Rey-Boué N. F. Guerrero-Rodríguez Johannes Stöckl Thomas I. Strasser |
| author_facet | Alexis B. Rey-Boué N. F. Guerrero-Rodríguez Johannes Stöckl Thomas I. Strasser |
| author_sort | Alexis B. Rey-Boué |
| collection | DOAJ |
| description | The uninterruptible operation of grid-connected renewables under the occurrence of grid voltage sags is addressed in this work. This is achieved due to the incorporation of an enhanced control algorithm of a renewable source. The low-voltage ride-through algorithm was developed in accordance to the voltage profile introduced by IEC 61400-21 regarding grid voltage sags. To guarantee continuous operation of the renewable agent during voltage sags, not only instantaneous reactive power but also instantaneous active power under moderate voltage sags was injected to the utility grid fulfilling grid code requirements. A dual second-order generalized integrator frequency-locked loop synchronization algorithm was used to estimate the system’s frequency, together with the positive and the negative sequences of the three-phase utility grid voltages when unbalanced sags occurred. The current control was made in a stationary reference frame by using proportional-resonant regulators, and a DC voltage source was used to emulate the primary energy from any type of renewable system. The validation of the proposed control algorithm was conducted for a three-phase grid-connected renewable system with an apparent power of 500 kVA. The results from several experimental tests demonstrated the proper behavior of the enhanced algorithm. |
| first_indexed | 2024-03-10T04:14:40Z |
| format | Article |
| id | doaj.art-093835f64e1d4adc9258d6ad741d9431 |
| institution | Directory Open Access Journal |
| issn | 2079-9292 |
| language | English |
| last_indexed | 2024-03-10T04:14:40Z |
| publishDate | 2022-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Electronics |
| spelling | doaj.art-093835f64e1d4adc9258d6ad741d94312023-11-23T08:03:08ZengMDPI AGElectronics2079-92922022-04-01119140410.3390/electronics11091404Enhanced Control of Three-Phase Grid-Connected Renewables with Fault Ride-Through Capability under Voltage SagsAlexis B. Rey-Boué0N. F. Guerrero-Rodríguez1Johannes Stöckl2Thomas I. Strasser3Department of Electronics, Computers Technology and Projects, Universidad Politécnica de Cartagena, c/Dr. Fleming, s/n, 30202 Cartagena, SpainEngineering Sciences, Pontificia Universidad Católica Madre y Maestra PUCMM, Av. Abraham Lincoln Esq. Romulo Betancourt, Santo Domingo 2748, Dominican RepublicAIT Austrian Institute of Technology, Center for Energy-Electric Energy Systems, Giefinggasse 2, 1210 Vienna, AustriaAIT Austrian Institute of Technology, Center for Energy-Electric Energy Systems, Giefinggasse 2, 1210 Vienna, AustriaThe uninterruptible operation of grid-connected renewables under the occurrence of grid voltage sags is addressed in this work. This is achieved due to the incorporation of an enhanced control algorithm of a renewable source. The low-voltage ride-through algorithm was developed in accordance to the voltage profile introduced by IEC 61400-21 regarding grid voltage sags. To guarantee continuous operation of the renewable agent during voltage sags, not only instantaneous reactive power but also instantaneous active power under moderate voltage sags was injected to the utility grid fulfilling grid code requirements. A dual second-order generalized integrator frequency-locked loop synchronization algorithm was used to estimate the system’s frequency, together with the positive and the negative sequences of the three-phase utility grid voltages when unbalanced sags occurred. The current control was made in a stationary reference frame by using proportional-resonant regulators, and a DC voltage source was used to emulate the primary energy from any type of renewable system. The validation of the proposed control algorithm was conducted for a three-phase grid-connected renewable system with an apparent power of 500 kVA. The results from several experimental tests demonstrated the proper behavior of the enhanced algorithm.https://www.mdpi.com/2079-9292/11/9/1404controller hardware-in-the-loopconstant active power controldual second-order generalized integrator frequency-locked looplow-voltage ride-throughvoltage sagrenewable energy system |
| spellingShingle | Alexis B. Rey-Boué N. F. Guerrero-Rodríguez Johannes Stöckl Thomas I. Strasser Enhanced Control of Three-Phase Grid-Connected Renewables with Fault Ride-Through Capability under Voltage Sags Electronics controller hardware-in-the-loop constant active power control dual second-order generalized integrator frequency-locked loop low-voltage ride-through voltage sag renewable energy system |
| title | Enhanced Control of Three-Phase Grid-Connected Renewables with Fault Ride-Through Capability under Voltage Sags |
| title_full | Enhanced Control of Three-Phase Grid-Connected Renewables with Fault Ride-Through Capability under Voltage Sags |
| title_fullStr | Enhanced Control of Three-Phase Grid-Connected Renewables with Fault Ride-Through Capability under Voltage Sags |
| title_full_unstemmed | Enhanced Control of Three-Phase Grid-Connected Renewables with Fault Ride-Through Capability under Voltage Sags |
| title_short | Enhanced Control of Three-Phase Grid-Connected Renewables with Fault Ride-Through Capability under Voltage Sags |
| title_sort | enhanced control of three phase grid connected renewables with fault ride through capability under voltage sags |
| topic | controller hardware-in-the-loop constant active power control dual second-order generalized integrator frequency-locked loop low-voltage ride-through voltage sag renewable energy system |
| url | https://www.mdpi.com/2079-9292/11/9/1404 |
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