The Experts below are selected from a list of 288 Experts worldwide ranked by ideXlab platform
Atif Iqbal - One of the best experts on this subject based on the ideXlab platform.
-
ICIT - Modelling and implementation of SVPWM technique for a fifteen-phase voltage source inverter for sinusoidal Output Waveform
2015 IEEE International Conference on Industrial Technology (ICIT), 2015Co-Authors: Moinoddin, Haitham Abu-rub, Atif Iqbal, Rashid AlammariAbstract:In this paper space vector model of a fifteen-phase voltage source inverter (VSI) is presented. The space vector Pulse Width Modulation (SVPWM) of a fifteen-phase voltage source inverter (VSI) with the aim of producing sinusoidal Output Waveform, is illustrated. Generalized space vector theory is used to model the inverter and the SVPWM. As per the general inverter switching theory there are 215 = 32768 switching states are possible that yield 32766 active space voltage vectors and two zero voltage vectors at the origin. Out of the total 32766 active voltage vectors, 210 voltage vectors are utilized for the implementation of SVPWM. The sinusoidal voltage is obtained by controlling the duty cycle the voltage space vectors of d-q plane when voltage space vectors of other six x-y planes are set to zero. Maximum modulation index is used to get balanced sinusoidal Output. The theoretical results are verified by simulation and experimental results with R-L load.
-
Modelling and implementation of SVPWM technique for a thirteen-phase voltage source inverter-sinusoidal Output Waveform
2014 IEEE Applied Power Electronics Conference and Exposition - APEC 2014, 2014Co-Authors: Moinoddin, Haitham Abu-rub, Atif IqbalAbstract:In this paper comprehensive space vector model of a thirteen-phase voltage source inverter (VSI) is reported. The paper also discusses the space vector Pulse Width Modulation (SVPWM) of a thirteen-phase voltage source inverter (VSI) with the aim of producing sinusoidal Output Waveform. Generalized space vector theory is used to achieve the SVPWM. As per the general inverter switching theory there are 213 = 8192 switching states possible that yield 8190 active space voltage vectors and two zero voltage vectors at the origin. Out of the total 8190 active voltage vectors, 156 voltage vectors are utilized for the implementation of SVPWM considering the constraint of sinusoidal Output voltage. The sinusoidal voltage is obtained by controlling the duty cycle the voltage space vectors of d-q plane when voltage space vectors of other five x-y planes are set to zero. The theoretical results are verified by simulation and experimental results with R-L load.
Lee Empringham - One of the best experts on this subject based on the ideXlab platform.
-
enhancement of matrix converter Output Waveform quality using minimized commutation times
IEEE Transactions on Industrial Electronics, 2004Co-Authors: Patrick Wheeler, J C Clare, Lee EmpringhamAbstract:This letter introduces a new concept in current commutation for matrix converters that minimizes the commutation time and, hence, enhances the Output Waveform quality. This commutation technique overcomes all the Waveform quality problems associated with dead times in inverter-based circuits without the need for compensation. Practical results from a 10-kVA matrix converter are presented.
-
Improved Output Waveform quality for multi-level H-bridge chain converters using unequal cell voltages
8th International Conference on Power Electronics and Variable Speed Drives, 2000Co-Authors: Patrick Wheeler, Lee Empringham, D. GerryAbstract:This paper describes a set of techniques for improving the Output Waveform quality from an isolated H-bridge multi-level power converter by the introduction of unequal H-bridge cell voltages and the use of a high performance PWM H-bridge cell. The Waveform quality improvements are quantified in terms of frequency weighted THD for a series of six circuit configurations. Both simulation and practical results are presented and the results compared in both the time and frequency domains as well as by THD.
Moinoddin - One of the best experts on this subject based on the ideXlab platform.
-
ICIT - Modelling and implementation of SVPWM technique for a fifteen-phase voltage source inverter for sinusoidal Output Waveform
2015 IEEE International Conference on Industrial Technology (ICIT), 2015Co-Authors: Moinoddin, Haitham Abu-rub, Atif Iqbal, Rashid AlammariAbstract:In this paper space vector model of a fifteen-phase voltage source inverter (VSI) is presented. The space vector Pulse Width Modulation (SVPWM) of a fifteen-phase voltage source inverter (VSI) with the aim of producing sinusoidal Output Waveform, is illustrated. Generalized space vector theory is used to model the inverter and the SVPWM. As per the general inverter switching theory there are 215 = 32768 switching states are possible that yield 32766 active space voltage vectors and two zero voltage vectors at the origin. Out of the total 32766 active voltage vectors, 210 voltage vectors are utilized for the implementation of SVPWM. The sinusoidal voltage is obtained by controlling the duty cycle the voltage space vectors of d-q plane when voltage space vectors of other six x-y planes are set to zero. Maximum modulation index is used to get balanced sinusoidal Output. The theoretical results are verified by simulation and experimental results with R-L load.
-
Modelling and implementation of SVPWM technique for a thirteen-phase voltage source inverter-sinusoidal Output Waveform
2014 IEEE Applied Power Electronics Conference and Exposition - APEC 2014, 2014Co-Authors: Moinoddin, Haitham Abu-rub, Atif IqbalAbstract:In this paper comprehensive space vector model of a thirteen-phase voltage source inverter (VSI) is reported. The paper also discusses the space vector Pulse Width Modulation (SVPWM) of a thirteen-phase voltage source inverter (VSI) with the aim of producing sinusoidal Output Waveform. Generalized space vector theory is used to achieve the SVPWM. As per the general inverter switching theory there are 213 = 8192 switching states possible that yield 8190 active space voltage vectors and two zero voltage vectors at the origin. Out of the total 8190 active voltage vectors, 156 voltage vectors are utilized for the implementation of SVPWM considering the constraint of sinusoidal Output voltage. The sinusoidal voltage is obtained by controlling the duty cycle the voltage space vectors of d-q plane when voltage space vectors of other five x-y planes are set to zero. The theoretical results are verified by simulation and experimental results with R-L load.
Shailendra Jain - One of the best experts on this subject based on the ideXlab platform.
-
A multilevel Voltage Source Inverter (VSI) to maximize the number of levels in Output Waveform
International Journal of Electrical Power & Energy Systems, 2013Co-Authors: Krishna Kumar Gupta, Shailendra JainAbstract:Abstract Recently multilevel inverters are gaining popularity due to reduced voltage stress across power switches and low total harmonic distortion (THD) Output voltage Waveform. However, device count increases with increased voltage levels. This paper presents a novel multilevel topology which is capable of obtaining all additive and subtractive combinations of input DC levels in the Output Waveform. Though all such levels can be obtained using the proposed topology, the actual number of levels depends on the DC source arrangement. A comparison is made between proposed topology and the classical multilevel topologies on the basis of device count and number of levels in the Output voltage Waveform. A detailed study of the proposed topology is presented through the example of a nine-level inverter. Appropriate modulation scheme is also presented. The proposed concept is analyzed through simulation studies and verified experimentally.
Patrick Wheeler - One of the best experts on this subject based on the ideXlab platform.
-
enhancement of matrix converter Output Waveform quality using minimized commutation times
IEEE Transactions on Industrial Electronics, 2004Co-Authors: Patrick Wheeler, J C Clare, Lee EmpringhamAbstract:This letter introduces a new concept in current commutation for matrix converters that minimizes the commutation time and, hence, enhances the Output Waveform quality. This commutation technique overcomes all the Waveform quality problems associated with dead times in inverter-based circuits without the need for compensation. Practical results from a 10-kVA matrix converter are presented.
-
Improved Output Waveform quality for multi-level H-bridge chain converters using unequal cell voltages
8th International Conference on Power Electronics and Variable Speed Drives, 2000Co-Authors: Patrick Wheeler, Lee Empringham, D. GerryAbstract:This paper describes a set of techniques for improving the Output Waveform quality from an isolated H-bridge multi-level power converter by the introduction of unequal H-bridge cell voltages and the use of a high performance PWM H-bridge cell. The Waveform quality improvements are quantified in terms of frequency weighted THD for a series of six circuit configurations. Both simulation and practical results are presented and the results compared in both the time and frequency domains as well as by THD.