Effect of Zero-Vector Placement in a Dual-Inverter Fed Open-End Winding Induction-Motor Drive With a Decoupled Space-Vector PWM Strategy

Somasekhar, V. T.; Srinivas, S.; Kumar, K.K.

doi:10.1109/tie.2008.918644

Cited by 167 publications

(64 citation statements)

References 23 publications

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“…T gb = T bs + T offset (11) T gc = T cs + T offset (12) where T ga , T gb and T gc are the gating signals during which the top switches in a leg are turned on.…”

Section: Svpwm Using a Reduced Computation Methodsmentioning

confidence: 99%

“…Sector identification can be done by coordinate transformation as introduced in [8][9][10] or by repeated comparison of the three-phase reference voltages as introduced in [6][7][8][9][10][11]. The lookup tables can be used for determining the switching vectors in best switching sequence as introduced in [12]. Calculating the duration of the switching vectors can be simplified by mapping the sector of the multilevel inverter to a corresponding sector of the two-level inverter as introduced in [13,14].…”

Section: Introductionmentioning

confidence: 99%

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Design and Implementation of Space Vector PWM Inverter Based on a Low Cost Microcontroller

Gaballah

2012

Arab J Sci Eng

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The rapid development of high switching frequency power electronics in the past decade leads towards wider application of voltage source inverters in AC power generation. Therefore, this prompts the need for a modulation technique with less total harmonic distortion, fewer switching losses, and wider linear modulation range. Space vector pulse width modulation (SVPWM) provides a better technique compared to the more commonly used PWM or sinusoidal PWM (SPWM) techniques because of their easier digital realization and better DC bus utilization. This paper aims to achieve two goals. One is to introduce an SVPWM technique based on a reduced computation method which is much simpler and faster than conventional means. The other is presenting a practical design and implementation of space vector PWM inverter based on a low cost microcontroller to overcome many of the issues experienced using the conventional methods.

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“…T gb = T bs + T offset (11) T gc = T cs + T offset (12) where T ga , T gb and T gc are the gating signals during which the top switches in a leg are turned on.…”

Section: Svpwm Using a Reduced Computation Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Design and Implementation of Space Vector PWM Inverter Based on a Low Cost Microcontroller

Gaballah

2012

Arab J Sci Eng

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“…Six of these switching states are active states, but the switching states (111) and (000) are zero/passive [2,[6][7][8][9].…”

Section: Description Of Sv-pwm Control On 2-level Vsimentioning

confidence: 99%

“…This paper is focused on the development of a general technique of SV-PWM in 2-level 3-phase VSIs [2], aiming at their utilization for driving variable speed 3-phase induction motors of medium power. One of the major issues faced in power electronic design is the reduction of harmonic content in inverter circuits [6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

The impact of sampling frequency and amplitude modulation index on low order harmonics in a 3-phase SV-PVM voltage source inverter

Kabashi¹,

Limani²,

Caka³

et al. 2017

Turk J Elec Eng & Comp Sci

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Nowadays, variable speed AC motors are widely used in industry and there are many speed adjustment techniques available. In the last decade there has been a trend towards the use of space vector PWM-IGBT inverters, due to easier digital realization and better utilization of the DC bus. Every power inverter produces a total harmonic distortion (THD) on its output that causes extra losses in stator of induction motors. By eliminating a number of low order voltage/current harmonics it is possible to reduce harmonic losses (stator losses) and mechanical oscillations in general. This could be achieved by implementing filters in the output of inverters or by applying a modern modulation technique such as space vector pulse width modulation (SV-PWM). The objective of this paper is focused on using general techniques of SV-PWM in 2-level 3-phase voltage source inverters for inductive load tempting to eliminate the low order voltage/current harmonics, by varying sampling frequency and amplitude modulation index, without using filters.

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“…The first one used the unified voltage modulation strategy [18] and the 180° decoupled PWM strategy [19] to adjust the duration of the small vectors so that the mean zero-sequence voltage is zero during each switching cycle. Then the zero-sequence voltage is dynamically eliminated [20]. The other way is the biasing inverter PWM strategy [6] where the mean value of summation of threephase voltage is zero.…”

Section: Introductionmentioning

confidence: 99%

A New Method for Elimination of Zero-Sequence Voltage in Dual Three-Level Inverter Fed Open-End Winding Induction Motors

Geng¹,

Wei²,

Chen³

et al. 2017

Journal of Power Electronics

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Due to the excessive zero-sequence voltage in dual three-level inverter fed open-end winding induction motor systems, zerosequence circumfluence which is harmful to switching devices and insulation is then formed when operating in a single DC voltage source supplying mode. Traditionally, it is the mean value instead of instantaneous value of the zero-sequence voltage that is eliminated, through adjusting the durations of the operating vectors. A new strategy is proposed for zero-sequence voltage elimination, which utilizes unified voltage modulation and a decoupled SVPWM strategy to achieve two same-sized equivalent vectors for an angle of 120°, generated by two inverters independently. Both simulation and experimental results have verified its efficiency in the instantaneous value elimination of zero-sequence voltage.

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Effect of Zero-Vector Placement in a Dual-Inverter Fed Open-End Winding Induction-Motor Drive With a Decoupled Space-Vector PWM Strategy

Cited by 167 publications

References 23 publications

Design and Implementation of Space Vector PWM Inverter Based on a Low Cost Microcontroller

Design and Implementation of Space Vector PWM Inverter Based on a Low Cost Microcontroller

The impact of sampling frequency and amplitude modulation index on low order harmonics in a 3-phase SV-PVM voltage source inverter

A New Method for Elimination of Zero-Sequence Voltage in Dual Three-Level Inverter Fed Open-End Winding Induction Motors

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