An adaptive carrier-based PWM method for four-switch three-phase inverter

Nguyen, Tan-Tien; Nguyen, Hoang Minh; Lee, Hong‐Hee

doi:10.1109/isie.2009.5218135

Cited by 28 publications

(8 citation statements)

References 9 publications

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“…Δv drift_Comp, which is output value of PI-controller, is the value to compensate the drift. The drift is compensated with adding Δv drift_Comp to reference signal as shown in (6). It must be noted that the drift will be able to compensate with only PIcontroller because it has DC component in steady state.…”

Section: Pwm Technique Of Four-leg Invertermentioning

confidence: 99%

“…9 and 10 show the reference signal waveforms of the IM1 and IM2. As shown in (6), since Δv WO is added to each reference signals, reference signals of U and V phase are unbalanced each other. Fig.…”

Section: B Characteristics Of Four-leg Invertermentioning

confidence: 99%

“…The system connects one motor to one three-VSI and requires dual three-VSIs. Recently, for the sake of low-cost, saving space and reduction of inverter losses to reduce switching device counts, four switch inverter to drive one motor [1][2][3][4][5][6], a four-leg inverter (FLI) [7][8] and six switch inverter [9] to drive two three-phase AC motors independently has been studied. Especially, the FLI consists of four legs and two capacitors connected in a series.…”

Section: Introductionmentioning

confidence: 99%

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Characteristics of independent two induction motor drives fed by a four-leg inverter

Kezuka

Oka

Matsuse

2010

2010 IEEE Energy Conversion Congress and Exposition

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This paper presents the experimental results of the independent drive characteristics of two three-phase induction motors (IMs) fed by a four-leg inverter (FLI). The FLI is a single inverter that can drive two three-phase AC motors independently. The inverter consists of four legs and two capacitors connected in a series. The U and V phases of both motors are connected in each leg respectively whereas the W phase of both motors is connected in the neutral point of twosprit capacitors. The PWM technique in three-phase voltage source inverter (three-VSI) is not directly applicable for the FLI because only two phases must be modulated. Then, the paper also analyzes about potential in the neutral point of two-sprit capacitors and inverter output voltage. Next, modulation technique in the FLI is also shown. The PWM strategy may apply carrier-based PWM. Experimental results demonstrate the characteristics of two IM independent drives and the validity of those analytic results.

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Section: Pwm Technique Of Four-leg Invertermentioning

confidence: 99%

Section: B Characteristics Of Four-leg Invertermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Characteristics of independent two induction motor drives fed by a four-leg inverter

Kezuka

Oka

Matsuse

2010

2010 IEEE Energy Conversion Congress and Exposition

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“…Besides, if the voltage sensors have phase delay associated with the measurement process, the compensation sufferers from inaccuracy. Different versions of the four-switch based three-phase inverter with space vector modulation applied to induction motor as well as PMSM drives are reported in [19]- [21]. Kim et al in [22] discusses an alternative method to compensate for the DC link mid-point voltage fluctuation by inserting a virtual equivalent impedance in the phases which are not connected to the DC link mid-point to compensate for DC link mid-point voltage fluctuation.…”

Section: Introductionmentioning

confidence: 99%

Application of Four-Switch-Based Three-Phase Grid-Connected Inverter to Connect Renewable Energy Source to a Generalized Unbalanced Microgrid System

Dasgupta

Mohan

Sahoo

et al. 2013

IEEE Trans. Ind. Electron.

110

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In this paper, a four power semiconductor switch based three-phase inverter is proposed for renewable energy integration to a generalized micro-grid system. The proposed topology b-4 of three-phase inverter is investigated to make the commercial micro-grid system to be cost effective and hardware optimized. A simple Sine PWM (SPWM) based control strategy is proposed for the b-4 inverter topology instead of the traditional complex four-switch based Space Vector techniques. The overall control structure is implemented using the Lyapunov function based non-linear controller to track the inverter current directly in the a-b-c frame so that a specific amount of active and reactive grid power flow can be controlled in a de-coupled manner along with low THD of grid currents in the presence of non-linear load at the point of common coupling. A novel technique of using the Spatial Repetitive Controller (SRC) is also proposed to eliminate the effect of mid-point voltage fluctuation of the DC link even in the case of asymmetrically split DC link capacitors without any extra voltage or current sensors unlike conventional methods. Detailed experimental results are provided to show the efficacy of the proposed hardware system for grid connected applications in the micro-grid.Index Terms-four-switch based three-phase inverter (b4-topology), Generalized three-phase micro-grid bus, Sine PWM based control, Non-linear load

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“…With these SVPWM methods, the maximum obtainable output voltage is limited in the linear modulation region. To overcome this problem, we proposed the use of carrier-based PWM for a 4S3P inverter in [7].…”

Section: Introductionmentioning

confidence: 99%

Adaptive Carrier-based PWM for a Four-Switch Three-Phase Inverter under DC-link Voltage Ripple Conditions

Nguyen¹,

Lee²,

Nguyen³

2010

Journal of Electrical Engineering and Technology

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-This paper proposes an adaptive carrier-based pulse width modulation (PWM) method for a four-switch three-phase (4S3P) inverter under dc-link voltage ripple conditions. The proposed method guarantees balanced output currents despite of the existence of the voltage oscillations across two dc-link capacitors. And also, this new approach achieves a linear over-modulation with calculation time reduction. Simulation and experimental results are given to validate the feasibility of the proposed method.

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An adaptive carrier-based PWM method for four-switch three-phase inverter

Cited by 28 publications

References 9 publications

Characteristics of independent two induction motor drives fed by a four-leg inverter

Characteristics of independent two induction motor drives fed by a four-leg inverter

Application of Four-Switch-Based Three-Phase Grid-Connected Inverter to Connect Renewable Energy Source to a Generalized Unbalanced Microgrid System

Adaptive Carrier-based PWM for a Four-Switch Three-Phase Inverter under DC-link Voltage Ripple Conditions

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