FPGA-Based Single-Phase PV Inverter Using Unipolar and Bipolar SPWM Control Techniques
The study presents circuitry modeling and methodology to integrate solar photovoltaic (PV) energy with grid (AC) sources to supplement household appliances during a power cut-off or restricted supply period and alternating charge deep cycle batteries. This paper discusses an FPGA-based Sinusoidal Pu...
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| Format: | Article |
| Language: | English |
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Unviversity of Technology- Iraq
2022-02-01
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| Series: | Engineering and Technology Journal |
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| Online Access: | https://etj.uotechnology.edu.iq/article_173054_f9233a92e5a554c98b93eda2c49b0e88.pdf |
| _version_ | 1797337673574121472 |
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| author | Murtadha Sadeq Hanan A. Akkar |
| author_facet | Murtadha Sadeq Hanan A. Akkar |
| author_sort | Murtadha Sadeq |
| collection | DOAJ |
| description | The study presents circuitry modeling and methodology to integrate solar photovoltaic (PV) energy with grid (AC) sources to supplement household appliances during a power cut-off or restricted supply period and alternating charge deep cycle batteries. This paper discusses an FPGA-based Sinusoidal Pulse Width Modulation (SPWM) generator as a control mechanism for a PV/Battery full-bridge inverter. The inverter's efficacy is expressed as the Total Harmonic Distortion (THD) ratio, which must be as low as possible. Various schemes are proposed to reduce THD to generate a more sinusoidal output wave. SPWM is mostly used in industrial inverters. Two SPWM techniques, Bipolar and unipolar, are compared under a variety of Modulation Index (MI) conditions and Carrier Frequency (fc) to analyze the best performance of the full-bridge inverter with less (THD) and smoother output sinewave. The present paper discusses the results of a simulation for a single-phase full-bridge inverter employing bipolar and unipolar SPWM techniques. The output waveform demonstrates that the Unipolar SPWM technique produces less Total harmonic Distortion than the Bipolar method, with THD 45% lower. ISE 14.7 and Matlab 2019 are used to present, simulate SPWM generating code, and implement the design on a field-programmable gate array (FPGA), which acts as a controller for the Mosfet gates in the full-bridge inverter to constitute a sine wave without changing any hardware configuration in the circuit design. The system implementation of SPWM Pulse generation has been validated on Xilinx Spartan 6 FPGA (XC6SLX45) board using VHDL code. The final test on the system design for the SPWM generation program, after synthesis and compilation were finalized and verified on a prototype system. |
| first_indexed | 2024-03-08T09:16:59Z |
| format | Article |
| id | doaj.art-3a932b8bb3fc404f972ea9fd162deca4 |
| institution | Directory Open Access Journal |
| issn | 1681-6900 2412-0758 |
| language | English |
| last_indexed | 2024-03-08T09:16:59Z |
| publishDate | 2022-02-01 |
| publisher | Unviversity of Technology- Iraq |
| record_format | Article |
| series | Engineering and Technology Journal |
| spelling | doaj.art-3a932b8bb3fc404f972ea9fd162deca42024-01-31T14:27:42ZengUnviversity of Technology- IraqEngineering and Technology Journal1681-69002412-07582022-02-0140238639510.30684/etj.v40i2.2239173054FPGA-Based Single-Phase PV Inverter Using Unipolar and Bipolar SPWM Control TechniquesMurtadha Sadeq0Hanan A. Akkar1Electrical Engineering Dept., University of Technology-Iraq, Alsina’a Street, 10066 Baghdad, Iraq.Electrical Engineering Dept., University of Technology-Iraq, Alsina’a Street, 10066 Baghdad, Iraq.The study presents circuitry modeling and methodology to integrate solar photovoltaic (PV) energy with grid (AC) sources to supplement household appliances during a power cut-off or restricted supply period and alternating charge deep cycle batteries. This paper discusses an FPGA-based Sinusoidal Pulse Width Modulation (SPWM) generator as a control mechanism for a PV/Battery full-bridge inverter. The inverter's efficacy is expressed as the Total Harmonic Distortion (THD) ratio, which must be as low as possible. Various schemes are proposed to reduce THD to generate a more sinusoidal output wave. SPWM is mostly used in industrial inverters. Two SPWM techniques, Bipolar and unipolar, are compared under a variety of Modulation Index (MI) conditions and Carrier Frequency (fc) to analyze the best performance of the full-bridge inverter with less (THD) and smoother output sinewave. The present paper discusses the results of a simulation for a single-phase full-bridge inverter employing bipolar and unipolar SPWM techniques. The output waveform demonstrates that the Unipolar SPWM technique produces less Total harmonic Distortion than the Bipolar method, with THD 45% lower. ISE 14.7 and Matlab 2019 are used to present, simulate SPWM generating code, and implement the design on a field-programmable gate array (FPGA), which acts as a controller for the Mosfet gates in the full-bridge inverter to constitute a sine wave without changing any hardware configuration in the circuit design. The system implementation of SPWM Pulse generation has been validated on Xilinx Spartan 6 FPGA (XC6SLX45) board using VHDL code. The final test on the system design for the SPWM generation program, after synthesis and compilation were finalized and verified on a prototype system.https://etj.uotechnology.edu.iq/article_173054_f9233a92e5a554c98b93eda2c49b0e88.pdffield programmable gate arrayphotovoltaicsinusoidal pulse width modulationtotal harmonic distortion modulation indexhardware description language |
| spellingShingle | Murtadha Sadeq Hanan A. Akkar FPGA-Based Single-Phase PV Inverter Using Unipolar and Bipolar SPWM Control Techniques Engineering and Technology Journal field programmable gate array photovoltaic sinusoidal pulse width modulation total harmonic distortion modulation index hardware description language |
| title | FPGA-Based Single-Phase PV Inverter Using Unipolar and Bipolar SPWM Control Techniques |
| title_full | FPGA-Based Single-Phase PV Inverter Using Unipolar and Bipolar SPWM Control Techniques |
| title_fullStr | FPGA-Based Single-Phase PV Inverter Using Unipolar and Bipolar SPWM Control Techniques |
| title_full_unstemmed | FPGA-Based Single-Phase PV Inverter Using Unipolar and Bipolar SPWM Control Techniques |
| title_short | FPGA-Based Single-Phase PV Inverter Using Unipolar and Bipolar SPWM Control Techniques |
| title_sort | fpga based single phase pv inverter using unipolar and bipolar spwm control techniques |
| topic | field programmable gate array photovoltaic sinusoidal pulse width modulation total harmonic distortion modulation index hardware description language |
| url | https://etj.uotechnology.edu.iq/article_173054_f9233a92e5a554c98b93eda2c49b0e88.pdf |
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