Climate change and pollution are serious issues that are driving people to adopt renewable energy... more Climate change and pollution are serious issues that are driving people to adopt renewable energy instead of fossil fuels. Most renewable energy technologies rely on atmospheric conditions to generate power. Solar energy is a renewable energy source that causes the least environmental damage. Solar energy can be converted to electricity, which necessitates the use of a PV system. This study presents a design, which analyses the output power performance of PV, using machine learning technique in India and Malaysia; using this, we would get the predicted amount of solar power using different weather conditions for both India and Malaysia. This study is divided into two sections, such as the data collection section and the implementation system. Dataset was collected from a weather NASA website, which took various weather parameters, based on which the model will be evaluated. The proposed research work is developed using ANN and is an amalgamation of statistical regression and neural ...
2019 IEEE 15th International Colloquium on Signal Processing & Its Applications (CSPA), 2019
Multilevel inverters (MLIs) are playing a major role in every sector of power industries, which i... more Multilevel inverters (MLIs) are playing a major role in every sector of power industries, which is growing significantly over the years. Although multilevel inverters are highly applicable, they have some stern disadvantages that need to be dealt with. Some of the most common issues of MLIs include high usage of electric components, highly complex modulation techniques, presence of harmonics and so on. By keeping all these issues into mind, this paper investigates a single phase cross-switched MLI using abridged electric components. Furthermore, it has described a novel and simplified method of implementing sinusoidal pulse width modulation (SPWM) technique. The investigated MLI and the proposed modulation technique is validated by following both simulation and hardware approach. The simulation is performed using MATLAB Simulink software while the hardware prototype of the whole topology is built using TMS320F28335 digital signal processor (DSP) board.
2017 IEEE 15th Student Conference on Research and Development (SCOReD), 2017
Multilevel inverters play an important role in the field of high power and medium voltage control... more Multilevel inverters play an important role in the field of high power and medium voltage control. As the usage of multilevel inverters are significantly increasing in every sector of power system industries, it has also introduced some new challenges. The most common challenge while using a multilevel inverter on high power conditions, is the increased number of power electronic components. This paper investigates a cross switched topology of single phase multilevel inverter with reduced number of power electronic components. It also discusses about the implementation of a simplified one dimensional space vector modulation technique (SVM) to control the multilevel inverter. The studies are performed based on a digital computer simulation approach using the MATLAB Simulink software. Additionally a hardware implementation of the complete topology was also done using TMS320F28335 board. A comprehensive analysis of one dimensional SVM modulation technique is briefly studied to validate the inverter. Finally, a comparative analysis between this topology and other recently developed topologies is discussed.
2019 IEEE 15th International Colloquium on Signal Processing & Its Applications (CSPA), 2019
Multilevel inverter (MLI) plays a crucial role in medium voltage and high power applications. Whi... more Multilevel inverter (MLI) plays a crucial role in medium voltage and high power applications. While the usages of MLIs are continuously growing in every area of power industries, it also initiates certain challenges that require attention. The increased number of power electronic components is one of the most challenging issues for multilevel inverters. The output power quality and the semiconductor device ratings of the grid connected high power inverters are largely dependent on the number of power components. Thus, it is required to decrease the overall power components as much as possible while designing these inverters. Therefore, this paper proposes a single phase 7-level cross-switched multilevel inverter that can produce higher voltages utilizing lesser power components. In order to further improve the efficiency of this MLI and enhancing its performance, selective harmonic elimination pulse width modulation (SHE-PWM) control technique is implemented. Here, Newton Raphson algorithm is examined to calculate the switching angles for different modulation indices. The fundamental voltage is obtained by solving the equations in such a way that the desired low order harmonics are eliminated. MATLAB Simulink software has been used to perform the simulation while the hardware model was implemented using digital signal processor eZdsp528335.
Abstract—In this paper, a new configuration of a three-phase five-level multilevel voltage-source... more Abstract—In this paper, a new configuration of a three-phase five-level multilevel voltage-source inverter is introduced. The pro-posed topology constitutes the conventional three-phase two-level bridge with three bidirectional switches. A multilevel dc link using fixed dc voltage supply and cascaded half-bridge is connected in such a way that the proposed inverter outputs the required output voltage levels. The fundamental frequency staircase modulation technique is easily used to generate the appropriate switching gate signals. For the purpose of increasing the number of voltage levels with fewer number of power electronic components, the structure of the proposed inverter is extended and different methods to deter-mine the magnitudes of utilized dc voltage supplies are suggested. Moreover, the prototype of the suggested configuration is manu-factured as the obtained simulation and hardware results ensured the feasibility of the configuration and the compatibility of the modulatio...
Multilevel inverters (MLIs) are playing a major role in every sector of power industries, which i... more Multilevel inverters (MLIs) are playing a major role in every sector of power industries, which is growing significantly over the years. Although multilevel inverters are highly applicable, they have some stern disadvantages that need to be dealt with. Some of the most common issues of MLIs include high usage of electric components, highly complex modulation techniques, presence of harmonics and so on. By keeping all these issues into mind, this paper investigates a single phase cross-switched MLI using abridged electric components. Furthermore, it has described a novel and simplified method of implementing sinusoidal pulse width modulation (SPWM) technique. The investigated MLI and the proposed modulation technique is validated by following both simulation and hardware approach. The simulation is performed using MATLAB Simulink software while the hardware prototype of the whole topology is built using TMS320F28335 digital signal processor (DSP) board.
This research proposes a three-phase six-level multilevel inverter depending on twelve-switch thr... more This research proposes a three-phase six-level multilevel inverter depending on twelve-switch three-phase Bridge and multilevel DC-link. The proposed architecture increases the number of voltage levels with less power components than conventional inverters such as the flying capacitor, cascaded H-bridge, diode-clamped and other recently established multilevel inverter topologies. The multilevel DC-link circuit is constructed by connecting three distinct DC voltage supplies, such as single DC supply, half-bridge and full-bridge cells. The purpose of both full-bridge and half-bridge cells is to provide a variable DC voltage with a common voltage step to the three-phase bridge’s mid-point. A vector modulation technique is also employed to achieve the desired output voltage waveforms. The proposed inverter can operate as a six-level or two-level inverter, depending on the magnitude of the modulation indexes. To guarantee the feasibility of the proposed configuration, the proposed invert...
International Journal of Power Electronics and Drive Systems (IJPEDS)
This paper introduces a new hybrid topology of multilevel inverter capable of generating 21-level... more This paper introduces a new hybrid topology of multilevel inverter capable of generating 21-level output voltage. The proposed topology is built using the combination of cross-switched bridge and a conventional full H-bridge. Compared to the conventional topologies and other hybrid topologies, the newly introduced multilevel inverter has the ability to maximize the number of voltage levels utilizing lower number of DC voltage sources, integrated bipolar transistor (IGBT) switches and gate drivers. A low frequency modulation technique is used to generate the ideal multilevel output voltage and gate pulses. Furthermore, the proposed topology is validated by building a hardware prototype and obtaining relevant experimental results. The acquired simulated and experimental results indicate the proper functioning of the proposed hybrid topology along with the compatibility of the applied modulation technique.
This article introduces a novel configuration of multi-level inverter (MLI) with low number of po... more This article introduces a novel configuration of multi-level inverter (MLI) with low number of power electric components. The inverter is a combination of two back to back T-type modules using two cross-connected switches. This inverter can operate using dc sources having either same or different voltage ratings. The proposed inverter can also be extended using cascaded connection to obtain higher voltage levels. This MLI and its extensions are suitable for other applications where high voltage is required. The major feature of this MLI is the formation of negative voltage levels without using any H-bridge circuit. Some other advantages of this MLI are low total harmonic distortion and highly efficient output voltage. A low-frequency modulation technique known as nearest level control is applied to produce the high-quality output voltage. The simulation was done using MATLAB/Simulink, while the hardware prototype is build using TMS320F28335 digital signal processor. The performance of the proposed MLI is validated by obtaining the accurate simulation and experimental results. Index Terms-Cross-switched T-type (CT-type), multilevel in-verter (MLI), nearest level control (NLC), power converters, power electronics.
Climate change and pollution are serious issues that are driving people to adopt renewable energy... more Climate change and pollution are serious issues that are driving people to adopt renewable energy instead of fossil fuels. Most renewable energy technologies rely on atmospheric conditions to generate power. Solar energy is a renewable energy source that causes the least environmental damage. Solar energy can be converted to electricity, which necessitates the use of a PV system. This study presents a design, which analyses the output power performance of PV, using machine learning technique in India and Malaysia; using this, we would get the predicted amount of solar power using different weather conditions for both India and Malaysia. This study is divided into two sections, such as the data collection section and the implementation system. Dataset was collected from a weather NASA website, which took various weather parameters, based on which the model will be evaluated. The proposed research work is developed using ANN and is an amalgamation of statistical regression and neural ...
2019 IEEE 15th International Colloquium on Signal Processing & Its Applications (CSPA), 2019
Multilevel inverters (MLIs) are playing a major role in every sector of power industries, which i... more Multilevel inverters (MLIs) are playing a major role in every sector of power industries, which is growing significantly over the years. Although multilevel inverters are highly applicable, they have some stern disadvantages that need to be dealt with. Some of the most common issues of MLIs include high usage of electric components, highly complex modulation techniques, presence of harmonics and so on. By keeping all these issues into mind, this paper investigates a single phase cross-switched MLI using abridged electric components. Furthermore, it has described a novel and simplified method of implementing sinusoidal pulse width modulation (SPWM) technique. The investigated MLI and the proposed modulation technique is validated by following both simulation and hardware approach. The simulation is performed using MATLAB Simulink software while the hardware prototype of the whole topology is built using TMS320F28335 digital signal processor (DSP) board.
2017 IEEE 15th Student Conference on Research and Development (SCOReD), 2017
Multilevel inverters play an important role in the field of high power and medium voltage control... more Multilevel inverters play an important role in the field of high power and medium voltage control. As the usage of multilevel inverters are significantly increasing in every sector of power system industries, it has also introduced some new challenges. The most common challenge while using a multilevel inverter on high power conditions, is the increased number of power electronic components. This paper investigates a cross switched topology of single phase multilevel inverter with reduced number of power electronic components. It also discusses about the implementation of a simplified one dimensional space vector modulation technique (SVM) to control the multilevel inverter. The studies are performed based on a digital computer simulation approach using the MATLAB Simulink software. Additionally a hardware implementation of the complete topology was also done using TMS320F28335 board. A comprehensive analysis of one dimensional SVM modulation technique is briefly studied to validate the inverter. Finally, a comparative analysis between this topology and other recently developed topologies is discussed.
2019 IEEE 15th International Colloquium on Signal Processing & Its Applications (CSPA), 2019
Multilevel inverter (MLI) plays a crucial role in medium voltage and high power applications. Whi... more Multilevel inverter (MLI) plays a crucial role in medium voltage and high power applications. While the usages of MLIs are continuously growing in every area of power industries, it also initiates certain challenges that require attention. The increased number of power electronic components is one of the most challenging issues for multilevel inverters. The output power quality and the semiconductor device ratings of the grid connected high power inverters are largely dependent on the number of power components. Thus, it is required to decrease the overall power components as much as possible while designing these inverters. Therefore, this paper proposes a single phase 7-level cross-switched multilevel inverter that can produce higher voltages utilizing lesser power components. In order to further improve the efficiency of this MLI and enhancing its performance, selective harmonic elimination pulse width modulation (SHE-PWM) control technique is implemented. Here, Newton Raphson algorithm is examined to calculate the switching angles for different modulation indices. The fundamental voltage is obtained by solving the equations in such a way that the desired low order harmonics are eliminated. MATLAB Simulink software has been used to perform the simulation while the hardware model was implemented using digital signal processor eZdsp528335.
Abstract—In this paper, a new configuration of a three-phase five-level multilevel voltage-source... more Abstract—In this paper, a new configuration of a three-phase five-level multilevel voltage-source inverter is introduced. The pro-posed topology constitutes the conventional three-phase two-level bridge with three bidirectional switches. A multilevel dc link using fixed dc voltage supply and cascaded half-bridge is connected in such a way that the proposed inverter outputs the required output voltage levels. The fundamental frequency staircase modulation technique is easily used to generate the appropriate switching gate signals. For the purpose of increasing the number of voltage levels with fewer number of power electronic components, the structure of the proposed inverter is extended and different methods to deter-mine the magnitudes of utilized dc voltage supplies are suggested. Moreover, the prototype of the suggested configuration is manu-factured as the obtained simulation and hardware results ensured the feasibility of the configuration and the compatibility of the modulatio...
Multilevel inverters (MLIs) are playing a major role in every sector of power industries, which i... more Multilevel inverters (MLIs) are playing a major role in every sector of power industries, which is growing significantly over the years. Although multilevel inverters are highly applicable, they have some stern disadvantages that need to be dealt with. Some of the most common issues of MLIs include high usage of electric components, highly complex modulation techniques, presence of harmonics and so on. By keeping all these issues into mind, this paper investigates a single phase cross-switched MLI using abridged electric components. Furthermore, it has described a novel and simplified method of implementing sinusoidal pulse width modulation (SPWM) technique. The investigated MLI and the proposed modulation technique is validated by following both simulation and hardware approach. The simulation is performed using MATLAB Simulink software while the hardware prototype of the whole topology is built using TMS320F28335 digital signal processor (DSP) board.
This research proposes a three-phase six-level multilevel inverter depending on twelve-switch thr... more This research proposes a three-phase six-level multilevel inverter depending on twelve-switch three-phase Bridge and multilevel DC-link. The proposed architecture increases the number of voltage levels with less power components than conventional inverters such as the flying capacitor, cascaded H-bridge, diode-clamped and other recently established multilevel inverter topologies. The multilevel DC-link circuit is constructed by connecting three distinct DC voltage supplies, such as single DC supply, half-bridge and full-bridge cells. The purpose of both full-bridge and half-bridge cells is to provide a variable DC voltage with a common voltage step to the three-phase bridge’s mid-point. A vector modulation technique is also employed to achieve the desired output voltage waveforms. The proposed inverter can operate as a six-level or two-level inverter, depending on the magnitude of the modulation indexes. To guarantee the feasibility of the proposed configuration, the proposed invert...
International Journal of Power Electronics and Drive Systems (IJPEDS)
This paper introduces a new hybrid topology of multilevel inverter capable of generating 21-level... more This paper introduces a new hybrid topology of multilevel inverter capable of generating 21-level output voltage. The proposed topology is built using the combination of cross-switched bridge and a conventional full H-bridge. Compared to the conventional topologies and other hybrid topologies, the newly introduced multilevel inverter has the ability to maximize the number of voltage levels utilizing lower number of DC voltage sources, integrated bipolar transistor (IGBT) switches and gate drivers. A low frequency modulation technique is used to generate the ideal multilevel output voltage and gate pulses. Furthermore, the proposed topology is validated by building a hardware prototype and obtaining relevant experimental results. The acquired simulated and experimental results indicate the proper functioning of the proposed hybrid topology along with the compatibility of the applied modulation technique.
This article introduces a novel configuration of multi-level inverter (MLI) with low number of po... more This article introduces a novel configuration of multi-level inverter (MLI) with low number of power electric components. The inverter is a combination of two back to back T-type modules using two cross-connected switches. This inverter can operate using dc sources having either same or different voltage ratings. The proposed inverter can also be extended using cascaded connection to obtain higher voltage levels. This MLI and its extensions are suitable for other applications where high voltage is required. The major feature of this MLI is the formation of negative voltage levels without using any H-bridge circuit. Some other advantages of this MLI are low total harmonic distortion and highly efficient output voltage. A low-frequency modulation technique known as nearest level control is applied to produce the high-quality output voltage. The simulation was done using MATLAB/Simulink, while the hardware prototype is build using TMS320F28335 digital signal processor. The performance of the proposed MLI is validated by obtaining the accurate simulation and experimental results. Index Terms-Cross-switched T-type (CT-type), multilevel in-verter (MLI), nearest level control (NLC), power converters, power electronics.
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