The Experts below are selected from a list of 56280 Experts worldwide ranked by ideXlab platform
K. K. Kumar  One of the best experts on this subject based on the ideXlab platform.

Effect of ZeroVector Placement in a DualInverter Fed OpenEnd Winding InductionMotor Drive With a Decoupled SpaceVector PWM Strategy
IEEE Transactions on Industrial Electronics, 2008CoAuthors: V T Somasekhar, S. Srinivas, K. K. KumarAbstract:An openend winding inductionmotor drive with two twolevel inverters achieves threelevel inversion. The drawback of this configuration is the presence of a high Zerosequence current, stressing the semiconductor switching devices and the motor. To avoid this, two isolated dc power supplies are needed to feed individual inverters. In this paper, it is shown that it is possible to operate this drive with a single dc power supply, with reasonable engineering compromises. The new decoupled spaceVectorbased pulsewidth modulation (PWM) strategy proposed in this paper achieves this objective. This PWM strategy exploits the dependence of the Zerosequence voltage on the placement of the ZeroVector of individual inverters. It is shown that the Zerosequence voltage of the dualinverter system is suppressed by forcing the Zerosequence voltage of the individual inverters to a value of Zero, in the average sense, in each samplingtime interval. This strategy, therefore, achieves a dynamic balancing of the Zerosequence current. It is also shown that this PWM scheme achieves the center spacing of effectivetime period for the dualinverter drive and its associated advantages. In addition, the effect of the placement of the ZeroVector for individual inverters on the dualinverter drive is investigated, and the experimental results are presented.

effect of Zero Vector placement in a dual inverter fed open end winding induction motor drive with alternate sub hexagonal center pwm switching scheme
IEEE Transactions on Power Electronics, 2008CoAuthors: V T Somasekhar, S. Srinivas, K. K. KumarAbstract:Threelevel inversion can be achieved by the cascade connection of two twolevel inverters to an openend winding induction motor. Several space Vector based pulsewidth modulation (PWM) control strategies have been proposed for this power circuit configuration in the past. It is known that space Vector modulation offers a degree of freedom in its implementation with regard to the distribution of the ZeroVector. In this paper, the effect of placement of ZeroVector for the implementation of space Vector based PWM techniques for a dualinverter fed openend winding induction motor drive is reported. Apart from constructing a consistent theoretical frame work, experimental results with continuous and discontinuous PWM are presented in this paper and all the cases are compared.
Heng Nian  One of the best experts on this subject based on the ideXlab platform.

Zero sequence current suppression strategy of open winding pmsg system with common dc bus based on Zero Vector redistribution
IEEE Transactions on Industrial Electronics, 2015CoAuthors: Yijie Zhou, Heng NianAbstract:The openwinding configuration with a common dc bus provides a Zerosequence current loop which allows the Zerosequence current flowing. With the application in permanent magnet synchronous generator (PMSG) systems, the existing Zerosequence current is inevitably caused by the common mode voltage generated by pulsewidth modulation (PWM) techniques and the third back EMF by the inherent flux harmonic component. With the mathematical modeling analysis, the Zerosequence equivalent circuit based on the PMSG system is proposed. Meanwhile, a Zerosequence current suppression controller is designed. In this paper, a Zero Vector redistribution PWM technique is proposed. With this technique, the dwell times of Zero Vectors (000) and (111) for both converters are determined. Meanwhile, it gives the Zerosequence component overmodulation analysis. Both the control method and improved PWM technique are implemented in a 1kW openwinding PMSG experimental setup, and the experimental results are discussed.

Zero sequence current suppression strategy of open winding pmsg system with common dc bus based on Zero Vector redistribution
IEEE Transactions on Industrial Electronics, 2015CoAuthors: Yijie Zhou, Heng NianAbstract:The openwinding configuration with a common dc bus provides a Zerosequence current loop which allows the Zerosequence current flowing. With the application in permanent magnet synchronous generator (PMSG) systems, the existing Zerosequence current is inevitably caused by the common mode voltage generated by pulsewidth modulation (PWM) techniques and the third back EMF by the inherent flux harmonic component. With the mathematical modeling analysis, the Zerosequence equivalent circuit based on the PMSG system is proposed. Meanwhile, a Zerosequence current suppression controller is designed. In this paper, a Zero Vector redistribution PWM technique is proposed. With this technique, the dwell times of Zero Vectors (000) and (111) for both converters are determined. Meanwhile, it gives the Zerosequence component overmodulation analysis. Both the control method and improved PWM technique are implemented in a 1kW openwinding PMSG experimental setup, and the experimental results are discussed.
V T Somasekhar  One of the best experts on this subject based on the ideXlab platform.

Effect of ZeroVector Placement in a DualInverter Fed OpenEnd Winding InductionMotor Drive With a Decoupled SpaceVector PWM Strategy
IEEE Transactions on Industrial Electronics, 2008CoAuthors: V T Somasekhar, S. Srinivas, K. K. KumarAbstract:An openend winding inductionmotor drive with two twolevel inverters achieves threelevel inversion. The drawback of this configuration is the presence of a high Zerosequence current, stressing the semiconductor switching devices and the motor. To avoid this, two isolated dc power supplies are needed to feed individual inverters. In this paper, it is shown that it is possible to operate this drive with a single dc power supply, with reasonable engineering compromises. The new decoupled spaceVectorbased pulsewidth modulation (PWM) strategy proposed in this paper achieves this objective. This PWM strategy exploits the dependence of the Zerosequence voltage on the placement of the ZeroVector of individual inverters. It is shown that the Zerosequence voltage of the dualinverter system is suppressed by forcing the Zerosequence voltage of the individual inverters to a value of Zero, in the average sense, in each samplingtime interval. This strategy, therefore, achieves a dynamic balancing of the Zerosequence current. It is also shown that this PWM scheme achieves the center spacing of effectivetime period for the dualinverter drive and its associated advantages. In addition, the effect of the placement of the ZeroVector for individual inverters on the dualinverter drive is investigated, and the experimental results are presented.

effect of Zero Vector placement in a dual inverter fed open end winding induction motor drive with alternate sub hexagonal center pwm switching scheme
IEEE Transactions on Power Electronics, 2008CoAuthors: V T Somasekhar, S. Srinivas, K. K. KumarAbstract:Threelevel inversion can be achieved by the cascade connection of two twolevel inverters to an openend winding induction motor. Several space Vector based pulsewidth modulation (PWM) control strategies have been proposed for this power circuit configuration in the past. It is known that space Vector modulation offers a degree of freedom in its implementation with regard to the distribution of the ZeroVector. In this paper, the effect of placement of ZeroVector for the implementation of space Vector based PWM techniques for a dualinverter fed openend winding induction motor drive is reported. Apart from constructing a consistent theoretical frame work, experimental results with continuous and discontinuous PWM are presented in this paper and all the cases are compared.
Yijie Zhou  One of the best experts on this subject based on the ideXlab platform.

Zero sequence current suppression strategy of open winding pmsg system with common dc bus based on Zero Vector redistribution
IEEE Transactions on Industrial Electronics, 2015CoAuthors: Yijie Zhou, Heng NianAbstract:The openwinding configuration with a common dc bus provides a Zerosequence current loop which allows the Zerosequence current flowing. With the application in permanent magnet synchronous generator (PMSG) systems, the existing Zerosequence current is inevitably caused by the common mode voltage generated by pulsewidth modulation (PWM) techniques and the third back EMF by the inherent flux harmonic component. With the mathematical modeling analysis, the Zerosequence equivalent circuit based on the PMSG system is proposed. Meanwhile, a Zerosequence current suppression controller is designed. In this paper, a Zero Vector redistribution PWM technique is proposed. With this technique, the dwell times of Zero Vectors (000) and (111) for both converters are determined. Meanwhile, it gives the Zerosequence component overmodulation analysis. Both the control method and improved PWM technique are implemented in a 1kW openwinding PMSG experimental setup, and the experimental results are discussed.

Zero sequence current suppression strategy of open winding pmsg system with common dc bus based on Zero Vector redistribution
IEEE Transactions on Industrial Electronics, 2015CoAuthors: Yijie Zhou, Heng NianAbstract:The openwinding configuration with a common dc bus provides a Zerosequence current loop which allows the Zerosequence current flowing. With the application in permanent magnet synchronous generator (PMSG) systems, the existing Zerosequence current is inevitably caused by the common mode voltage generated by pulsewidth modulation (PWM) techniques and the third back EMF by the inherent flux harmonic component. With the mathematical modeling analysis, the Zerosequence equivalent circuit based on the PMSG system is proposed. Meanwhile, a Zerosequence current suppression controller is designed. In this paper, a Zero Vector redistribution PWM technique is proposed. With this technique, the dwell times of Zero Vectors (000) and (111) for both converters are determined. Meanwhile, it gives the Zerosequence component overmodulation analysis. Both the control method and improved PWM technique are implemented in a 1kW openwinding PMSG experimental setup, and the experimental results are discussed.
S. Srinivas  One of the best experts on this subject based on the ideXlab platform.

Effect of ZeroVector Placement in a DualInverter Fed OpenEnd Winding InductionMotor Drive With a Decoupled SpaceVector PWM Strategy
IEEE Transactions on Industrial Electronics, 2008CoAuthors: V T Somasekhar, S. Srinivas, K. K. KumarAbstract:An openend winding inductionmotor drive with two twolevel inverters achieves threelevel inversion. The drawback of this configuration is the presence of a high Zerosequence current, stressing the semiconductor switching devices and the motor. To avoid this, two isolated dc power supplies are needed to feed individual inverters. In this paper, it is shown that it is possible to operate this drive with a single dc power supply, with reasonable engineering compromises. The new decoupled spaceVectorbased pulsewidth modulation (PWM) strategy proposed in this paper achieves this objective. This PWM strategy exploits the dependence of the Zerosequence voltage on the placement of the ZeroVector of individual inverters. It is shown that the Zerosequence voltage of the dualinverter system is suppressed by forcing the Zerosequence voltage of the individual inverters to a value of Zero, in the average sense, in each samplingtime interval. This strategy, therefore, achieves a dynamic balancing of the Zerosequence current. It is also shown that this PWM scheme achieves the center spacing of effectivetime period for the dualinverter drive and its associated advantages. In addition, the effect of the placement of the ZeroVector for individual inverters on the dualinverter drive is investigated, and the experimental results are presented.

effect of Zero Vector placement in a dual inverter fed open end winding induction motor drive with alternate sub hexagonal center pwm switching scheme
IEEE Transactions on Power Electronics, 2008CoAuthors: V T Somasekhar, S. Srinivas, K. K. KumarAbstract:Threelevel inversion can be achieved by the cascade connection of two twolevel inverters to an openend winding induction motor. Several space Vector based pulsewidth modulation (PWM) control strategies have been proposed for this power circuit configuration in the past. It is known that space Vector modulation offers a degree of freedom in its implementation with regard to the distribution of the ZeroVector. In this paper, the effect of placement of ZeroVector for the implementation of space Vector based PWM techniques for a dualinverter fed openend winding induction motor drive is reported. Apart from constructing a consistent theoretical frame work, experimental results with continuous and discontinuous PWM are presented in this paper and all the cases are compared.