Characteristic of Independent Two AC Motor Drives Fed by a Five-Leg Inverter

Oka, Kazuo; Ohama, Yusuke; Kubota, Hisao; Miki, Ichiro; Matsuse, Kouki

doi:10.1109/ias.2009.5324838

Cited by 16 publications

(10 citation statements)

References 7 publications

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“…Figure 11 shows the W phase currents for each motor and the CL current. It is found that there is not much difference between carrier-based PWM [1][2][3][4][5][6][7][8][9][10][11][12][13] which is such as Two-arm modulation and the modulation to separate VUF and SVM from speed and current results.…”

Section: B V/f Control Resultsmentioning

confidence: 99%

Independent speed control of two induction motors fed by a five-leg inverter with space vector modulation

Hara

Enokijima

Matsuse

2011

2011 IEEE Energy Conversion Congress and Exposition

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The methodology and experimental results of the independent speed control of two three-phase induction motors (IMs) fed by a five-leg inverter (5LI) with space vector modulation (SVM) are presented in this paper. Using SVM, we can select the switching count freely. But if SVM is applied to 5LI, normal SVM techniques to output voltages for motor in 3-VSI cannot be employed for the 5LI with independent driving because of its circuit configuration. Therefore, new SVM technique is needed. This paper shows the SVM technique for 5LI and the experimental results in case of using SVM with the least switching count for common leg of all. Then, experimental results are verified for the independent speed control of two IMs fed by the 5LI with SVM in this paper.

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Section: B V/f Control Resultsmentioning

confidence: 99%

Independent speed control of two induction motors fed by a five-leg inverter with space vector modulation

Hara

Enokijima

Matsuse

2011

2011 IEEE Energy Conversion Congress and Exposition

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“…Recently, a Five-Leg Inverter (FLI) to drive two threephase permanent magnet synchronous motors (PMSMs) independently has been studied for aiming saving space and reduction of inverter losses [1][2][3][4][5][6][7][8][9][10][11]. The use of PMSM is spreading in industrial field.…”

Section: Introductionmentioning

confidence: 99%

“…Normal pulse width modulation (PWM) techniques to output voltages for the motor in the 3-VSI cannot be employed for the FLI with independent drive. Many PWM techniques applying the FLI have been suggested [1][2][3][4][5][6][7][8][9][10][11]. In [3], [5][6][7][8][9][10], the simple and novel PWM technique of the FLI is suggested, and it has an advantage that switching signals generation is very simple.…”

Section: Introductionmentioning

confidence: 99%

“…The independent driving characteristics of two PMSMs fed by the FLI has been shown by only simulation results [7].This paper presents the experimental test results of the independent driving characteristics of two PMSMs fed by the FLI with the modulation technique in [9][10]. The FLI for two PMSM drives can realize not only independent speed control [10] but also position control. The FLI shares one leg and the leg connects one phase of both motors in common.…”

Section: Introductionmentioning

confidence: 99%

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Independent Position Controls of Two Permanent Magnet Synchronous Motors Fed by a Five-Leg Inverter

Enokijima

Oka

Matsuse

2010

2010 IEEE Industry Applications Society Annual Meeting

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This paper presents the experimental test results of the independent vector control characteristics of two threephase permanent magnet synchronous motors (PMSMs) fed by a five-leg inverter (FLI). Recently, the use of PMSM is more and more spreading in industrial field. It has the features of savingweight and high-efficiency compared with DC motor and induction motor. The maximum feature of the PMSMs is the realization of high performance position control. The independent position control validates for the factory automation (FA) apparatus as machine tool. If the independent position control of two motors with the FLI may be realized, the belt conveyer used at the FA apparatus will become possible not only one dimension but also two dimensions without double three-phase voltage source inverters. In this paper, experimental results are verified for the independent position control of two PMSMs fed by the FLI with the vector control. In addition, two PMSMs independent characteristics on condition that one motor operates at speed control and the other PMSM at position control also investigated.

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“…The research offers advantage of allowing independent control of the motors with cost reduction and space minimization. The independent control of two inductions can be realized by using Four Leg Inverter [3,4], Five Leg Inverter (FLI) [5][6][7][8][9]or Nine Switched Inverter [10,11]. This drive system offers cost reduction by reducing the numbers of power electronics switches devices, using only one DC bus supply, one DSP and less space.…”

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confidence: 99%

Development of combined vector and Direct Torque Control methods for independent two induction motor drives

Talib

Ibrahim

Rahim

et al. 2012

2012 IEEE International Power Engineering and Optimization Conference

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Many applications use two or more motors operating in parallel configuration by using one variable speed drive. This system is able to control these multiple motors at the same desired motor speed operation which provide advantages in terms of components and cost reduction. However, the system is not able to control each motor separately if it is desired to operate at different speeds and it also cannot withstand the load disturbance. To address this problem, the design of combined Vector Control-Direct Torque Control (DTC) methods is proposed and their performance is investigated for the case of independent controlled two induction motors fed by single Five Leg Inverter (FLI) method. Double Zero Sequence (DZS) Injection Method Space Vector Pulse Width Modulation (SVPWM) scheme is used for the FLI. Simulation results fromthe Simulink/Matlab that verify the validity of the method are also included. The results show the ability of the proposed method to control motor speed independently under forwardreverse step speed command and load disturbance condition.

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Characteristic of Independent Two AC Motor Drives Fed by a Five-Leg Inverter

Cited by 16 publications

References 7 publications

Independent speed control of two induction motors fed by a five-leg inverter with space vector modulation

Independent speed control of two induction motors fed by a five-leg inverter with space vector modulation

Independent Position Controls of Two Permanent Magnet Synchronous Motors Fed by a Five-Leg Inverter

Development of combined vector and Direct Torque Control methods for independent two induction motor drives

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