Synchronization and Control of a Single-Phase Grid-Tied Inverter under Harmonic Distortion
Grid-connected inverters in renewable energy systems must provide high-quality power to the grid according to regulatory standards such as the IEEE 1547. To provide high-quality current control when the inverter is connected to a distorted grid, the frequency and phase information of the fundamental...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-02-01
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| Series: | Electronics |
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| Online Access: | https://www.mdpi.com/2079-9292/12/4/860 |
| _version_ | 1797621336798920704 |
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| author | Kamyar Seifi Mehrdad Moallem |
| author_facet | Kamyar Seifi Mehrdad Moallem |
| author_sort | Kamyar Seifi |
| collection | DOAJ |
| description | Grid-connected inverters in renewable energy systems must provide high-quality power to the grid according to regulatory standards such as the IEEE 1547. To provide high-quality current control when the inverter is connected to a distorted grid, the frequency and phase information of the fundamental harmonic of the grid should be accurately obtained. This paper examines controller design for a single-phase inverter when there is distortion in the grid voltage. The control structure is designed to enhance the quality of the injected current into the grid. To this end, a frequency-locked loop (FLL) sinusoidal tracking controller which is able to reject the grid harmonics is proposed. Thus, the contribution of this paper is a new frequency-locked loop structure with adaptive notch filters that can provide accurate estimation of grid phase and frequency and improve the performance of single-phase inverters working under harmonic distortion. We also present an explanation of how the proposed adaptive nonlinear scheme can be discretized for digital implementation on a microcontroller. Experimental and simulation results are presented to demonstrate the performance of the proposed controller in eliminating distortion and enhancing the quality of the produced power. |
| first_indexed | 2024-03-11T08:55:31Z |
| format | Article |
| id | doaj.art-fcdc9692f8be4722b93eefa047373bd8 |
| institution | Directory Open Access Journal |
| issn | 2079-9292 |
| language | English |
| last_indexed | 2024-03-11T08:55:31Z |
| publishDate | 2023-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Electronics |
| spelling | doaj.art-fcdc9692f8be4722b93eefa047373bd82023-11-16T20:11:06ZengMDPI AGElectronics2079-92922023-02-0112486010.3390/electronics12040860Synchronization and Control of a Single-Phase Grid-Tied Inverter under Harmonic DistortionKamyar Seifi0Mehrdad Moallem1School of Mechatronic Systems Engineering, Simon Fraser University, Surrey, BC V3T 0A3, CanadaSchool of Mechatronic Systems Engineering, Simon Fraser University, Surrey, BC V3T 0A3, CanadaGrid-connected inverters in renewable energy systems must provide high-quality power to the grid according to regulatory standards such as the IEEE 1547. To provide high-quality current control when the inverter is connected to a distorted grid, the frequency and phase information of the fundamental harmonic of the grid should be accurately obtained. This paper examines controller design for a single-phase inverter when there is distortion in the grid voltage. The control structure is designed to enhance the quality of the injected current into the grid. To this end, a frequency-locked loop (FLL) sinusoidal tracking controller which is able to reject the grid harmonics is proposed. Thus, the contribution of this paper is a new frequency-locked loop structure with adaptive notch filters that can provide accurate estimation of grid phase and frequency and improve the performance of single-phase inverters working under harmonic distortion. We also present an explanation of how the proposed adaptive nonlinear scheme can be discretized for digital implementation on a microcontroller. Experimental and simulation results are presented to demonstrate the performance of the proposed controller in eliminating distortion and enhancing the quality of the produced power.https://www.mdpi.com/2079-9292/12/4/860power electronic conversionsynchronizationgrid-connected convertersfrequency-locked loop |
| spellingShingle | Kamyar Seifi Mehrdad Moallem Synchronization and Control of a Single-Phase Grid-Tied Inverter under Harmonic Distortion Electronics power electronic conversion synchronization grid-connected converters frequency-locked loop |
| title | Synchronization and Control of a Single-Phase Grid-Tied Inverter under Harmonic Distortion |
| title_full | Synchronization and Control of a Single-Phase Grid-Tied Inverter under Harmonic Distortion |
| title_fullStr | Synchronization and Control of a Single-Phase Grid-Tied Inverter under Harmonic Distortion |
| title_full_unstemmed | Synchronization and Control of a Single-Phase Grid-Tied Inverter under Harmonic Distortion |
| title_short | Synchronization and Control of a Single-Phase Grid-Tied Inverter under Harmonic Distortion |
| title_sort | synchronization and control of a single phase grid tied inverter under harmonic distortion |
| topic | power electronic conversion synchronization grid-connected converters frequency-locked loop |
| url | https://www.mdpi.com/2079-9292/12/4/860 |
| work_keys_str_mv | AT kamyarseifi synchronizationandcontrolofasinglephasegridtiedinverterunderharmonicdistortion AT mehrdadmoallem synchronizationandcontrolofasinglephasegridtiedinverterunderharmonicdistortion |