Hysteresis Based Quasi Fixed Frequency Current Control of Single Phase Full Bridge Grid Integrated Voltage Source Inverter
The traditional Fixed Band Hysteresis Current Control (FB-HCC) though being widely used for the current control of grid integrated voltage source inverter (GI-VSI), has the drawback of variable switching frequency. To overcome this drawback, Complex Programmable Logic Device (CPLD) based switching s...
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| Format: | Article |
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MDPI AG
2022-10-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/15/21/8112 |
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| author | Lakshmi Syamala Deepa Sankar Suhara Ekkarakkudy Makkar Bos Mathew Jos Mathew Kallarackal |
| author_facet | Lakshmi Syamala Deepa Sankar Suhara Ekkarakkudy Makkar Bos Mathew Jos Mathew Kallarackal |
| author_sort | Lakshmi Syamala |
| collection | DOAJ |
| description | The traditional Fixed Band Hysteresis Current Control (FB-HCC) though being widely used for the current control of grid integrated voltage source inverter (GI-VSI), has the drawback of variable switching frequency. To overcome this drawback, Complex Programmable Logic Device (CPLD) based switching scheme is proposed in this paper. The proposed method calls for a single reference wave and the control concept is to terminate the rising and falling inductor current (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mi>i</mi><mi>L</mi></msub></semantics></math></inline-formula>) either by the comparator or by the CPLD, based on the nature of its slope. Termination of the <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mi>i</mi><mi>L</mi></msub></semantics></math></inline-formula> with steeper slope by the comparator ensures lower current ripple, whereas the CPLD ensures constant switching frequency (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mi>f</mi><mrow><mi>s</mi><mi>w</mi></mrow></msub></semantics></math></inline-formula>). However, the <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mi>i</mi><mi>L</mi></msub></semantics></math></inline-formula> obtained with the proposed logic has a DC offset, which is corrected by modifying the reference. The basic concept, switching logic, and reference correction are thoroughly detailed. MATLAB/Simulink results are included to verify the proposed concept. The constant frequency operation of the proposed method is also validated in a 2 kW, 230 V, 50 Hz GI-VSI prototype. |
| first_indexed | 2024-03-09T19:06:16Z |
| format | Article |
| id | doaj.art-3f7771ddbc4b414a9e11ae21f0e52cb4 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-09T19:06:16Z |
| publishDate | 2022-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-3f7771ddbc4b414a9e11ae21f0e52cb42023-11-24T04:31:59ZengMDPI AGEnergies1996-10732022-10-011521811210.3390/en15218112Hysteresis Based Quasi Fixed Frequency Current Control of Single Phase Full Bridge Grid Integrated Voltage Source InverterLakshmi Syamala0Deepa Sankar1Suhara Ekkarakkudy Makkar2Bos Mathew Jos3Mathew Kallarackal4Department of Electronics and Communication Engineering, Mar Athanasius College of Engineering, Kothamangalam 686666, IndiaDepartment of Electrical and Electronics Engineering, Adi Shankara Institute of Engineering and Technology, Kalady 683574, IndiaDepartment of Electrical Engineering, Government Engineering College, Thrissur 680009, IndiaDepartment of Electrical and Electronics Engineering, Mar Athanasius College of Engineering, Kothamangalam 686666, IndiaDepartment of Electronics and Communication Engineering, Mar Athanasius College of Engineering, Kothamangalam 686666, IndiaThe traditional Fixed Band Hysteresis Current Control (FB-HCC) though being widely used for the current control of grid integrated voltage source inverter (GI-VSI), has the drawback of variable switching frequency. To overcome this drawback, Complex Programmable Logic Device (CPLD) based switching scheme is proposed in this paper. The proposed method calls for a single reference wave and the control concept is to terminate the rising and falling inductor current (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mi>i</mi><mi>L</mi></msub></semantics></math></inline-formula>) either by the comparator or by the CPLD, based on the nature of its slope. Termination of the <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mi>i</mi><mi>L</mi></msub></semantics></math></inline-formula> with steeper slope by the comparator ensures lower current ripple, whereas the CPLD ensures constant switching frequency (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mi>f</mi><mrow><mi>s</mi><mi>w</mi></mrow></msub></semantics></math></inline-formula>). However, the <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mi>i</mi><mi>L</mi></msub></semantics></math></inline-formula> obtained with the proposed logic has a DC offset, which is corrected by modifying the reference. The basic concept, switching logic, and reference correction are thoroughly detailed. MATLAB/Simulink results are included to verify the proposed concept. The constant frequency operation of the proposed method is also validated in a 2 kW, 230 V, 50 Hz GI-VSI prototype.https://www.mdpi.com/1996-1073/15/21/8112complex programmable logic deviceconstant switching frequencyhysteresis current controlgrid integrated voltage source inverter |
| spellingShingle | Lakshmi Syamala Deepa Sankar Suhara Ekkarakkudy Makkar Bos Mathew Jos Mathew Kallarackal Hysteresis Based Quasi Fixed Frequency Current Control of Single Phase Full Bridge Grid Integrated Voltage Source Inverter Energies complex programmable logic device constant switching frequency hysteresis current control grid integrated voltage source inverter |
| title | Hysteresis Based Quasi Fixed Frequency Current Control of Single Phase Full Bridge Grid Integrated Voltage Source Inverter |
| title_full | Hysteresis Based Quasi Fixed Frequency Current Control of Single Phase Full Bridge Grid Integrated Voltage Source Inverter |
| title_fullStr | Hysteresis Based Quasi Fixed Frequency Current Control of Single Phase Full Bridge Grid Integrated Voltage Source Inverter |
| title_full_unstemmed | Hysteresis Based Quasi Fixed Frequency Current Control of Single Phase Full Bridge Grid Integrated Voltage Source Inverter |
| title_short | Hysteresis Based Quasi Fixed Frequency Current Control of Single Phase Full Bridge Grid Integrated Voltage Source Inverter |
| title_sort | hysteresis based quasi fixed frequency current control of single phase full bridge grid integrated voltage source inverter |
| topic | complex programmable logic device constant switching frequency hysteresis current control grid integrated voltage source inverter |
| url | https://www.mdpi.com/1996-1073/15/21/8112 |
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