Common mode current elimination in multi-drive industrial systems

Consoli, A.; Cacciato, M.; Gennaro, F.; Scarcella, G.; Testa, A.

doi:10.1109/ias.1999.805991

Cited by 9 publications

(4 citation statements)

References 3 publications

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“…Advancements in power electronics and microcontrollers/DSPs have led to the introduction of multimachine drives which are based on some degree of commonality in the supply structure. The simplest solution of reduced-switch-count topologies is the one where a direct current (dc) bus is shared by two or more inverters [1]. Subsequent research looked at reduction of the number of inverter switches, with the most frequently analyzed structures being the two-motor drive supplied from a four-leg inverter, a five-leg inverter, or a nine-switch inverter [2]- [10].…”

Section: Model Predictive Control Of a Two-motor Drive Withmentioning

confidence: 99%

Model Predictive Control of a Two-Motor Drive With Five-Leg-Inverter Supply

Lim

Rahim

Hew

et al. 2013

IEEE Trans. Ind. Electron.

108

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Model predictive control (MPC) for a two-motor drive, supplied from a five-leg inverter, is presented in this paper. As an alternative to existing methods, use of MPC in multimachine drives has the advantages of independent fast current control of the machines, elimination of the closed-loop system's cascaded structure, and a reduced number of microcontrollers. A vector control algorithm is required, necessitating state-space modeling, with each machine's direct-and quadrature-axis currents chosen as state variables. Prediction of future states is via a discrete-time model of the five-leg inverter and a piecewise-affine model of two permanent-magnet synchronous motors (PMSMs). A method which eliminates unfeasible switching states inherent in reduced-switch-count inverters while reducing computation and sampling times is proposed. The algorithm is implemented in a TMS320F28335 DSP microcontroller, which controls the five-leg inverter and the two PMSMs. Simulation and experimental results validate the presented control concept.Index Terms-Five-leg inverter, model predictive control (MPC), two-machine drive, vector control.

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Section: Model Predictive Control Of a Two-motor Drive Withmentioning

confidence: 99%

Model Predictive Control of a Two-Motor Drive With Five-Leg-Inverter Supply

Lim

Rahim

Hew

et al. 2013

IEEE Trans. Ind. Electron.

108

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show abstract

“…4 shows the generation of reference vectors for both circuits, in which the input current vector I ref is the reference of the rectifier circuit and output voltage U ref is the reference of the inverter circuit. The duty-cycles of the vectors for rectifier circuit are given by (1), and the duty-cycles of vectors for inverter circuit are given by (2). …”

Section: A Normal Modulation Strategy For Multi-drive Systemmentioning

confidence: 99%

“…It can be used in many industrial fields like textile, automobile, oil-pumping and aerospace applications in order to decrease the cost and increase the redundancy of the driving system. In traditional multi-drive system, the AC-DC-AC indirect converter is utilized to drive the motors [1][2]. However, a bulky electrolytic capacitor is required as a DC link in this converter, which has a short life time and higher cost compared to the other electronic devices.…”

Section: Introductionmentioning

confidence: 99%

A fault-tolerant mechanism for multi-drive system based on indirect matrix converter

Mei

2011

IECON 2011 - 37th Annual Conference of the IEEE Industrial Electronics Society

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A fault-tolerant mechanism including topology and control strategy for multi-drive system based on indirect matrix converter is proposed in this paper, which is used for the remedial operation in case of opened switch faults and single-phase open-circuit on one of inverter circuits. Since there are a large number of switches in a multi-drive system based on indirect matrix converter, the fault-tolerant operation is achieved by reconfiguring the indirect matrix converter topology with a connecting device. Based on the reconstructed converter structure, a fault-tolerant modulation algorithm is developed to maintain ideal input/output currents and continuous driving operation. The proposed mechanism ensures improved system reliability and fault-tolerant capability without any backup leg or parallel redundancy. Simulation results verify the feasibility and validity of the proposed fault-tolerant mechanism for multi-drive system based on indirect matrix converter.

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“…With this solution the cost and volume of the system is increased. Recently a new topology was designed called as Nine Switch Inverter (NSI) [21][22][23][24][25][26][27][28] to control two three phase ac loads independently. This topology saves three switches in comparison to conventional method used for controlling two ac loads independently In this * Correspondence: goyalg@rknec.edu paper, fifteen switch inverter to drive four three phase ac loads is proposed.…”

Section: Introductionmentioning

confidence: 99%

Pulse width modulation control of fifteen-switch inverter for four AC loads

Goyal¹,

Aware²

2020

Turk J Elec Eng & Comp Sci

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In many studies in the literature, various topologies with reduced switch count are proposed. With the use of these topologies, a lower number of semiconductor switches are required to produce a desired set of voltage. This in turn reduces the size and cost of the inverter. This paper proposes a new reduced switch count topology named "fifteenswitch inverter (FSI)", which is experimentally verified. The FSI has five switches in one leg and have three legs for three phases. It is capable of controlling four three-phase ac loads. In this proposed inverter topology, fifteen switches are used against the twenty four switches in conventional two-level inverter to control four ac loads. The proposed control is implemented using modified sinusoidal and space vector pulse width modulation techniques. A comparative performance of FSI with conventional sinusoidal pulse width modulation and space vector pulse width modulation are presented in linear operating region. The structure and the principle of operation of the proposed inverter are introduced and verified using simulation. The inverter prototype was built and the proposed inverter has been verified experimentally using digital signal controller. The experimental results verify the applicability of the proposed inverter and the employed pulse generation technique.

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Common mode current elimination in multi-drive industrial systems

Cited by 9 publications

References 3 publications

Model Predictive Control of a Two-Motor Drive With Five-Leg-Inverter Supply

Model Predictive Control of a Two-Motor Drive With Five-Leg-Inverter Supply

A fault-tolerant mechanism for multi-drive system based on indirect matrix converter

Pulse width modulation control of fifteen-switch inverter for four AC loads

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