A Novel Three-Phase to Five-PhaseTransformation Using a Special Transformer Connecti
#1

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A Novel Three-Phase to Five-PhaseTransformation Using a Special Transformer Connection
ABSTRACT
this paper proposes a novel transformer connection scheme to convert the three-phase grid supply to a five-phase fixed voltage and fixed frequency supply.
Bulk power
Speed drive applications
Introduction
inherent advantages
Reduce Complexity
Ward and Harrier way back in 1969 .
Odd number of phases
THREE PHASE
Geometry of transformer
MULTI WINDING TRANSFORMER
WINDING ARRANGEMENT
Star connection
DESIGN OF THE PRAPOSED TRANSFORMER
Circuit diagram
Phasor diagram
waveforms
Characteristics of Five phase induction motor
GENERAL FIVE-PHASE INDUCTION MOTOR THEORY
Advantages

RESEARCH on multiphase induction-motor drives has grown since the beginning of the century, providing features that are suitable for high-power applications.
The five-phase connection eliminates the fifth- and other quintuple-order harmonics.
Applications
The first record of a multiphase motor drive, known to the authors, dates back to 1969, when a five-phase voltage source inverter-fed induction motor drive was proposed.
The main application areas are ship propulsion traction (including electric and hybrid electric vehicles) and the concept of “more-electric” aircraft.
CONCLUSION
This paper proposes a new transformer connection scheme to transform the three-phase grid power to a five-phase output supply. The connection scheme and the phasor diagram along with the turn ratios are illustrated. The successful implementation of the proposed connection scheme is elaborated by using simulation and experimentation. A five-phase induction motor under a loaded condition is used to prove the viability of the transformation system. It is expected that the proposed connection scheme can be used in drives applications and may also be further explored to be utilized in multiphase power transmission systems.
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#2
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ABSTRACT
The first five-phase induction motor drive system was proposed in the late 1970s for adjustable speed drive applications. Since then, a considerable research effort has been in place to develop commercially feasible multiphase drive Systems .Multiphase (more than three phase) systems are the focus of research recently due to their inherent advantages compared to their three-phase counterparts. the multiphase motors are invariably supplied by ac/dc/ac converters.
This is a special transformer connection scheme to obtain a balanced five-phase supply with the input as balanced three phases. The fixed voltage and fixed frequency available grid supply can be transformed to the fixed voltage and fixed frequency five-phase output supply. Since input is a three-phase system, the windings are connected in an usual fashion. Three separate cores are designed with each carrying one primary and three secondary coils, except in one core where only two secondary coils are used. Six terminals of primaries are connected in an appropriate manner resulting in star and/or delta connections and the 16 terminals of secondaries are connected in a different fashion resulting in star or polygon output. The connection scheme of secondary windings to obtain a star output. The turn ratios are different in each phase.
The choice of turn ratio is the key in creating the requisite phase displacement in the output phases. The construction of output phases with requisite phase angles of 72 between each phase is obtained using appropriate turn ratios. The designed transformation turns ratio can be achieved by simply multiplying the gain factor in the turn ratios.
A five-phase induction motor under a loaded condition is used to prove the viability of the transformation system. It is expected that the proposed connection scheme can be used in drives applications and may also be further explored to be utilized in multiphase power transmission systems.
INTRODUCTION
Multiphase (more than three phase) systems are the focus of research recently due to their inherent advantages compared to their three-phase counterparts. The applicability of multiphase systems is explored in electric power generation, transmission, and utilization. The research on six-phase transmission system was initiated due to the rising cost of right of way for transmission corridors, environmental issues, and various stringent licensing laws. Six phase transmission lines can provide the same power capacity with a lower phase-to-phase voltage and smaller, more compact towers compared to a standard double-circuit three-phase line. The geometry of the six-phase compact towers may also aid in the reduction of magnetic fields as well. The research on multiphase generators has started recently and only a few references are available. The present work on multiphase generation has investigated asymmetrical six-phase (two sets of
stator windings with 30 phase displacement) induction generator configuration as the solution for use in renewable energy generation. As far as multiphase motor drives are concerned, the first proposal was given by Ward and Harrer way back in 1969 and since then, the research was slow and steady until the end of the last century. The research on multiphase drive systems has gained momentum by the start of this century due to availability of cheap reliable semiconductor devices and digital signal processors. Detailed reviews on the state of the art in multiphase drive research are available.
It is to be emphasized here that the multiphase motors are invariably supplied by ac/dc/ac converters. Thus, the focus of the research on the multiphase electric drive is limited to the modeling and control of the supply systems (i.e., the inverters).
Little effort is made to develop any static transformation system to change the phase number from three to -phase (where 3 and odd). The scenario has now changed with this paper, proposing a novel phase transformation system which converts an available three-phase supply to an output five-phase supply. Multiphase, especially a 6-phase and 12-phase system is found to produce less ripple with a higher frequency of ripple in an ac–dc rectifier system. Thus, 6- and 12-phase transformers are designed to feed a multipulse rectifier system and the technology has matured. Recently, 24-phase and 36-phase transformer systems have been proposed for supplying a multipulse rectifier system. The reason of choice for a 6-, 12-, or 24-phase system is that these numbers are multiples of three and designing this type of system is simple and straightforward. However, increasing the number of phases certainly enhances the complexity of the system. None of these designs are available for an odd number of phases, such as 5, 7, 11, etc., as far as the authors know.
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#3
Can you Please upload the MATLAB file also
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#4
to get information about the topic"A Novel Three-Phase to Five-PhaseTransformation Using a Special Transformer Connecti"refer the page link bellow

http://studentbank.in/report-a-novel-thr...3#pid60203
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#5
Can you give me the values of the Transformers in the designed cirucit. MATLAB Designed Circuit
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#6
to get information about the topic"A Novel Three-Phase to Five-PhaseTransformation Using a Special Transformer Connecti"refer the page link bellow

http://studentbank.in/report-a-novel-thr...3#pid60203
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#7
hi
thanks for sharing of project. how the transformer turns ratios taken on secondary side i.e. five phase side.
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#8
to get information about the topic"A Novel Three-Phase to Five-PhaseTransformation Using a Special Transformer Connecti"refer the page link bellow

http://studentbank.in/report-a-novel-thr...3#pid60203
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#9
i want abstract on full detail
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#10
to get information about the topic"A Novel Three-Phase to Five-PhaseTransformation Using a Special Transformer Connecti"refer the page link bellow

http://studentbank.in/report-a-novel-thr...3#pid60203
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#11
Do any one have the MATLAB file for the above topic?? Please reply me at krishna.luvsu[at]gmail.com. Please!!!!
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#12
MATLAB file for "A Novel Three-Phase to Five-PhaseTransformation Using a Special Transformer Connection" Please!!
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#13

to get information about the topic Single phase to Three phase converter to drive Induction Motor full report,ppt and related topic refer the page link bellow

http://studentbank.in/report-three-phase...otor-drive

http://studentbank.in/report-a-new-singl...ing-for-ac

http://studentbank.in/report-speed-contr...pic30f4011

http://studentbank.in/report-simulation-...otor-drive

http://studentbank.in/report-a-novel-thr...r-connecti

http://studentbank.in/report-the-design-...-electroni

http://studentbank.in/report-a-high-perf...controller

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