A novel double quad-inverter configuration for multilevel twelve-phase open-winding converter
- Padmanaban, Sanjeevikumar, Blaabjerg, Frede, Wheeler, Patrick William, Ojo, Joseph Olorunfemi, Maroti, Pandav Kiran
- Authors: Padmanaban, Sanjeevikumar , Blaabjerg, Frede , Wheeler, Patrick William , Ojo, Joseph Olorunfemi , Maroti, Pandav Kiran
- Date: 2016
- Subjects: Dual six-phase inverter , Twelve-phase inverter , Multilevel inverters
- Language: English
- Type: Conference proceedings
- Identifier: http://hdl.handle.net/10210/213708 , uj:21186 , Citation: Padmanaban, S. et al. 2016. A novel double quad-inverter configuration for multilevel twelve-phase open-winding converter.
- Description: Abstract: This paper describes a novel proposal of double quad-inverter configuration for multilevel twelve-phase openwinding ac converter. Modular power units are developed from reconfigured eight classical three-phase voltage source inverters (VSIs). Each VSI has one additional bi-directional switching device (MOSFET/IGBT) per each phase and linked neutral with two capacitors. An original modified single carrier five-level modulation (MSCFM) algorithm is developed and modulates each 2-level VSIs as equivalent to ones 5-level multilevel inverter. Observed set of results are presented with model based numerical simulation software’s (Matlab/PLECS) developments. Further, the results confirm the good agreement to the developed theoretical background. Proposed converter suits the need of low-voltage/high-current applications such as ac tractions and ‘More-Electric Aircraft’ propulsion systems.
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- Authors: Padmanaban, Sanjeevikumar , Blaabjerg, Frede , Wheeler, Patrick William , Ojo, Joseph Olorunfemi , Maroti, Pandav Kiran
- Date: 2016
- Subjects: Dual six-phase inverter , Twelve-phase inverter , Multilevel inverters
- Language: English
- Type: Conference proceedings
- Identifier: http://hdl.handle.net/10210/213708 , uj:21186 , Citation: Padmanaban, S. et al. 2016. A novel double quad-inverter configuration for multilevel twelve-phase open-winding converter.
- Description: Abstract: This paper describes a novel proposal of double quad-inverter configuration for multilevel twelve-phase openwinding ac converter. Modular power units are developed from reconfigured eight classical three-phase voltage source inverters (VSIs). Each VSI has one additional bi-directional switching device (MOSFET/IGBT) per each phase and linked neutral with two capacitors. An original modified single carrier five-level modulation (MSCFM) algorithm is developed and modulates each 2-level VSIs as equivalent to ones 5-level multilevel inverter. Observed set of results are presented with model based numerical simulation software’s (Matlab/PLECS) developments. Further, the results confirm the good agreement to the developed theoretical background. Proposed converter suits the need of low-voltage/high-current applications such as ac tractions and ‘More-Electric Aircraft’ propulsion systems.
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Hextuple-inverter configuration for multilevel nine-phase symmetrical open-winding converter
- Padmanaban, Sanjeevi Kumar, Bhaskar, Mahajan Sagar, Maroti, Pandav Kiran
- Authors: Padmanaban, Sanjeevi Kumar , Bhaskar, Mahajan Sagar , Maroti, Pandav Kiran
- Date: 2016
- Subjects: Nine-phase Inverter , Symmetrical / Asymmetrical Inverter , Hex-inverter
- Language: English
- Type: Conference proceedings
- Identifier: http://hdl.handle.net/10210/213716 , uj:21187 , Citation: Admanaban, S., Bhaskar, M & Maroti, P. 2016. Hextuple-inverter configuration for multilevel nine-phase symmetrical open-winding converter.
- Description: Abstract: Hextuple-inverter configuration for multilevel nine-phase symmetrical open-winding DC converter is articulated in this work. Power modular unit consists of six classical three-phase voltage source inverters (VSI). Each VSI includes one bi-directional device (MOSFET/IGBT) per each phase and link to two capacitors for neutral connection. A modified single carrier five-level modulation (MSCFM) algorithm is developed and modulates each 2-level VSI as 5- level multilevel inverter (MLI). A set of test results is presented, which are observed from the model based developments in numerical simulation software’s (Matlab/PLECS). The results always showed good conformity with the developed theoretical background under working conditions. The proposed converter found suited for (low-voltage/high current) electric vehicles, DC tractions and ‘More-Electric Aircraft’ applications.
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- Authors: Padmanaban, Sanjeevi Kumar , Bhaskar, Mahajan Sagar , Maroti, Pandav Kiran
- Date: 2016
- Subjects: Nine-phase Inverter , Symmetrical / Asymmetrical Inverter , Hex-inverter
- Language: English
- Type: Conference proceedings
- Identifier: http://hdl.handle.net/10210/213716 , uj:21187 , Citation: Admanaban, S., Bhaskar, M & Maroti, P. 2016. Hextuple-inverter configuration for multilevel nine-phase symmetrical open-winding converter.
- Description: Abstract: Hextuple-inverter configuration for multilevel nine-phase symmetrical open-winding DC converter is articulated in this work. Power modular unit consists of six classical three-phase voltage source inverters (VSI). Each VSI includes one bi-directional device (MOSFET/IGBT) per each phase and link to two capacitors for neutral connection. A modified single carrier five-level modulation (MSCFM) algorithm is developed and modulates each 2-level VSI as 5- level multilevel inverter (MLI). A set of test results is presented, which are observed from the model based developments in numerical simulation software’s (Matlab/PLECS). The results always showed good conformity with the developed theoretical background under working conditions. The proposed converter found suited for (low-voltage/high current) electric vehicles, DC tractions and ‘More-Electric Aircraft’ applications.
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Single-phase seven-level stack multicell converter using level shifting SPWM technique
- Padmanaban, Sanjeevikumar, Siano, Pierluigi, Ertas, Ahmet H., Selvamuthukumaran, Rajasekar, Maroti, Pandav Kiran
- Authors: Padmanaban, Sanjeevikumar , Siano, Pierluigi , Ertas, Ahmet H. , Selvamuthukumaran, Rajasekar , Maroti, Pandav Kiran
- Date: 2016
- Subjects: Multilevel Inverter (MLI) , Stacked Multicell converter (SMC) , SPWM Technique
- Language: English
- Type: Conference proceedings
- Identifier: http://hdl.handle.net/10210/213869 , uj:21206 , Citation: Padmanaban, S. et al. 2016. Single-phase seven-level stack multicell converter using level shifting SPWM technique.
- Description: Abstract: This paper presents a single-phase seven-level stack multicell converter (SMC) which provides a viable solution for multilevel converter. Conventional cascaded multilevel inverter (MLI) removes the drawbacks of clamping diodes and clamping capacitors topologies. However, in a cascaded MLI number of voltage source and power switches increases as the number of level increases. The main advantage of single-phase SMC converter is only two DC sources are needed for any number of levels. Level shifting SPWM technique has been incorporated to achieve gate pulses, in which carrier wave of 20kHz is compared with 50Hz sinusoidal reference wave at a modulation index of 1 and 0.9. Total harmonic distortion (THD) for SMC converter is achieved at 1.55% and 5.26% with and without filter respectively. The seven-level SMC topology is simulated in MATLAB/SIMULINK and simulation results are provided to verify the performance.
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- Authors: Padmanaban, Sanjeevikumar , Siano, Pierluigi , Ertas, Ahmet H. , Selvamuthukumaran, Rajasekar , Maroti, Pandav Kiran
- Date: 2016
- Subjects: Multilevel Inverter (MLI) , Stacked Multicell converter (SMC) , SPWM Technique
- Language: English
- Type: Conference proceedings
- Identifier: http://hdl.handle.net/10210/213869 , uj:21206 , Citation: Padmanaban, S. et al. 2016. Single-phase seven-level stack multicell converter using level shifting SPWM technique.
- Description: Abstract: This paper presents a single-phase seven-level stack multicell converter (SMC) which provides a viable solution for multilevel converter. Conventional cascaded multilevel inverter (MLI) removes the drawbacks of clamping diodes and clamping capacitors topologies. However, in a cascaded MLI number of voltage source and power switches increases as the number of level increases. The main advantage of single-phase SMC converter is only two DC sources are needed for any number of levels. Level shifting SPWM technique has been incorporated to achieve gate pulses, in which carrier wave of 20kHz is compared with 50Hz sinusoidal reference wave at a modulation index of 1 and 0.9. Total harmonic distortion (THD) for SMC converter is achieved at 1.55% and 5.26% with and without filter respectively. The seven-level SMC topology is simulated in MATLAB/SIMULINK and simulation results are provided to verify the performance.
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