The Experts below are selected from a list of 33213 Experts worldwide ranked by ideXlab platform
M. R. Baiju - One of the best experts on this subject based on the ideXlab platform.
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fractal based space vector pwm for multilevel Inverters a novel approach
IEEE Transactions on Industrial Electronics, 2009Co-Authors: A Gopinath, A S A Mohamed, M. R. BaijuAbstract:A space vector pulsewidth-modulation (SVPWM) technique based on fractal approach for multilevel Inverters is presented. This paper proposes a view that the space vector locations of multilevel Inverters possess a fractal structure, and the properties of fractal structure together with the simplicity of fractal arithmetic are exploited to generate the SVPWM. The proposed method does not use any lookup tables for sector identification. The switching space vectors are also directly determined without using any lookup tables. The proposed scheme can be extended to an n-level inverter, and a generalized algorithm is also presented. The proposed scheme for generating SVPWM for multilevel Inverters is explained for a five-level inverter, and experimental results are presented for a three-level inverter.
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Five-level inverter voltage-space phasor generation for an open-end winding induction motor drive
IEE Proceedings - Electric Power Applications, 2003Co-Authors: M. R. Baiju, V T Somasekhar, K Gopakumar, K.k. Mohapatra, Loganathan UmanandAbstract:A topology for voltage-space phasor generation equivalent to a five-level inverter for an open-end winding induction motor is presented. The open-end winding induction motor is fed from both ends by two three-level Inverters. The three-level Inverters are realised by cascading two two-level Inverters. This inverter scheme does not experience neutral-point fluctuations. Of the two three-level Inverters only one will be switching at any instant in the lower speed ranges. In the multilevel carrier-based SPWM used for the proposed drive, a progressive discrete DC bias depending on the speed range is given to the reference wave to reduce the inverter switchings. The drive is implemented and tested with a 1 HP open-end winding induction motor and experimental results are presented.
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A five-level inverter voltage space phasor generation for an open-end winding induction motor drive
Eighteenth Annual IEEE Applied Power Electronics Conference and Exposition 2003. APEC '03., 2024Co-Authors: M. R. Baiju, V T Somasekhar, K Gopakumar, K.k. Mohapatra, Loganathan UmanandAbstract:A topology for voltage space phasor generation equivalent to a 5-level inverter for an open-end winding induction motor is presented. The open-end winding induction motor is fed from both ends by two 3-level Inverters. The three level Inverters are realised by cascading two 2-level Inverters. This inverter scheme does not experience neutral point fluctuations. Of the two 3-level Inverters only one inverter will be switching at any instant in the lower speed ranges. In the multi level carrier based SPWM used for the proposed drive, a progressive discrete DC bias depending upon the speed range is given to the reference wave to reduce the inverter switchings. The drive is implemented and tested with a 1Hp open-end winding induction motor and the experimental results are presented.
V T Somasekhar - One of the best experts on this subject based on the ideXlab platform.
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a dual inverter fed four level open end winding induction motor drive with a nested rectifier inverter
IEEE Transactions on Industrial Informatics, 2013Co-Authors: B.v. Reddy, V T SomasekharAbstract:A four-level inverter drive could be obtained by feeding an open-end winding induction motor by two two-level Inverters from either side with unequal dc-link voltages, which are in the ratio of 2:1. This inverter modulation scheme is capable of producing 64 space-vector combinations. Some of the space vector combinations could result in the overcharging of the dc-link capacitor corresponding to the inverter operating with the lower voltage. In this paper, a new power circuit topology is proposed, in which, a rectifier-inverter combination is nested within a conventional two-level inverter configuration. The output of the conventional two-level inverter feeds one end of the open-end winding induction motor, while the output of the nested rectifier-inverter combination feeds the other end. The total dc-link voltage needed in the proposed topology is only 77% of the one needed in the conventional multilevel Inverters. Also, the problem of zero-sequence current, commonly encountered in open-end winding induction motor drives, is avoided by resorting to a decoupled space vector modulation PWM scheme, which eliminates the zero-sequence voltage of the dual-inverter system by forcing the sampled average of the zero sequence voltage of individual Inverters to zero.
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Five-level inverter voltage-space phasor generation for an open-end winding induction motor drive
IEE Proceedings - Electric Power Applications, 2003Co-Authors: M. R. Baiju, V T Somasekhar, K Gopakumar, K.k. Mohapatra, Loganathan UmanandAbstract:A topology for voltage-space phasor generation equivalent to a five-level inverter for an open-end winding induction motor is presented. The open-end winding induction motor is fed from both ends by two three-level Inverters. The three-level Inverters are realised by cascading two two-level Inverters. This inverter scheme does not experience neutral-point fluctuations. Of the two three-level Inverters only one will be switching at any instant in the lower speed ranges. In the multilevel carrier-based SPWM used for the proposed drive, a progressive discrete DC bias depending on the speed range is given to the reference wave to reduce the inverter switchings. The drive is implemented and tested with a 1 HP open-end winding induction motor and experimental results are presented.
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A five-level inverter voltage space phasor generation for an open-end winding induction motor drive
Eighteenth Annual IEEE Applied Power Electronics Conference and Exposition 2003. APEC '03., 2024Co-Authors: M. R. Baiju, V T Somasekhar, K Gopakumar, K.k. Mohapatra, Loganathan UmanandAbstract:A topology for voltage space phasor generation equivalent to a 5-level inverter for an open-end winding induction motor is presented. The open-end winding induction motor is fed from both ends by two 3-level Inverters. The three level Inverters are realised by cascading two 2-level Inverters. This inverter scheme does not experience neutral point fluctuations. Of the two 3-level Inverters only one inverter will be switching at any instant in the lower speed ranges. In the multi level carrier based SPWM used for the proposed drive, a progressive discrete DC bias depending upon the speed range is given to the reference wave to reduce the inverter switchings. The drive is implemented and tested with a 1Hp open-end winding induction motor and the experimental results are presented.
Loganathan Umanand - One of the best experts on this subject based on the ideXlab platform.
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Five-level inverter voltage-space phasor generation for an open-end winding induction motor drive
IEE Proceedings - Electric Power Applications, 2003Co-Authors: M. R. Baiju, V T Somasekhar, K Gopakumar, K.k. Mohapatra, Loganathan UmanandAbstract:A topology for voltage-space phasor generation equivalent to a five-level inverter for an open-end winding induction motor is presented. The open-end winding induction motor is fed from both ends by two three-level Inverters. The three-level Inverters are realised by cascading two two-level Inverters. This inverter scheme does not experience neutral-point fluctuations. Of the two three-level Inverters only one will be switching at any instant in the lower speed ranges. In the multilevel carrier-based SPWM used for the proposed drive, a progressive discrete DC bias depending on the speed range is given to the reference wave to reduce the inverter switchings. The drive is implemented and tested with a 1 HP open-end winding induction motor and experimental results are presented.
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A five-level inverter voltage space phasor generation for an open-end winding induction motor drive
Eighteenth Annual IEEE Applied Power Electronics Conference and Exposition 2003. APEC '03., 2024Co-Authors: M. R. Baiju, V T Somasekhar, K Gopakumar, K.k. Mohapatra, Loganathan UmanandAbstract:A topology for voltage space phasor generation equivalent to a 5-level inverter for an open-end winding induction motor is presented. The open-end winding induction motor is fed from both ends by two 3-level Inverters. The three level Inverters are realised by cascading two 2-level Inverters. This inverter scheme does not experience neutral point fluctuations. Of the two 3-level Inverters only one inverter will be switching at any instant in the lower speed ranges. In the multi level carrier based SPWM used for the proposed drive, a progressive discrete DC bias depending upon the speed range is given to the reference wave to reduce the inverter switchings. The drive is implemented and tested with a 1Hp open-end winding induction motor and the experimental results are presented.
K Gopakumar - One of the best experts on this subject based on the ideXlab platform.
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Five-level inverter voltage-space phasor generation for an open-end winding induction motor drive
IEE Proceedings - Electric Power Applications, 2003Co-Authors: M. R. Baiju, V T Somasekhar, K Gopakumar, K.k. Mohapatra, Loganathan UmanandAbstract:A topology for voltage-space phasor generation equivalent to a five-level inverter for an open-end winding induction motor is presented. The open-end winding induction motor is fed from both ends by two three-level Inverters. The three-level Inverters are realised by cascading two two-level Inverters. This inverter scheme does not experience neutral-point fluctuations. Of the two three-level Inverters only one will be switching at any instant in the lower speed ranges. In the multilevel carrier-based SPWM used for the proposed drive, a progressive discrete DC bias depending on the speed range is given to the reference wave to reduce the inverter switchings. The drive is implemented and tested with a 1 HP open-end winding induction motor and experimental results are presented.
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A five-level inverter voltage space phasor generation for an open-end winding induction motor drive
Eighteenth Annual IEEE Applied Power Electronics Conference and Exposition 2003. APEC '03., 2024Co-Authors: M. R. Baiju, V T Somasekhar, K Gopakumar, K.k. Mohapatra, Loganathan UmanandAbstract:A topology for voltage space phasor generation equivalent to a 5-level inverter for an open-end winding induction motor is presented. The open-end winding induction motor is fed from both ends by two 3-level Inverters. The three level Inverters are realised by cascading two 2-level Inverters. This inverter scheme does not experience neutral point fluctuations. Of the two 3-level Inverters only one inverter will be switching at any instant in the lower speed ranges. In the multi level carrier based SPWM used for the proposed drive, a progressive discrete DC bias depending upon the speed range is given to the reference wave to reduce the inverter switchings. The drive is implemented and tested with a 1Hp open-end winding induction motor and the experimental results are presented.
K.k. Mohapatra - One of the best experts on this subject based on the ideXlab platform.
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Five-level inverter voltage-space phasor generation for an open-end winding induction motor drive
IEE Proceedings - Electric Power Applications, 2003Co-Authors: M. R. Baiju, V T Somasekhar, K Gopakumar, K.k. Mohapatra, Loganathan UmanandAbstract:A topology for voltage-space phasor generation equivalent to a five-level inverter for an open-end winding induction motor is presented. The open-end winding induction motor is fed from both ends by two three-level Inverters. The three-level Inverters are realised by cascading two two-level Inverters. This inverter scheme does not experience neutral-point fluctuations. Of the two three-level Inverters only one will be switching at any instant in the lower speed ranges. In the multilevel carrier-based SPWM used for the proposed drive, a progressive discrete DC bias depending on the speed range is given to the reference wave to reduce the inverter switchings. The drive is implemented and tested with a 1 HP open-end winding induction motor and experimental results are presented.
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A five-level inverter voltage space phasor generation for an open-end winding induction motor drive
Eighteenth Annual IEEE Applied Power Electronics Conference and Exposition 2003. APEC '03., 2024Co-Authors: M. R. Baiju, V T Somasekhar, K Gopakumar, K.k. Mohapatra, Loganathan UmanandAbstract:A topology for voltage space phasor generation equivalent to a 5-level inverter for an open-end winding induction motor is presented. The open-end winding induction motor is fed from both ends by two 3-level Inverters. The three level Inverters are realised by cascading two 2-level Inverters. This inverter scheme does not experience neutral point fluctuations. Of the two 3-level Inverters only one inverter will be switching at any instant in the lower speed ranges. In the multi level carrier based SPWM used for the proposed drive, a progressive discrete DC bias depending upon the speed range is given to the reference wave to reduce the inverter switchings. The drive is implemented and tested with a 1Hp open-end winding induction motor and the experimental results are presented.
