Generalised switching scheme for a space vector pulse‐width modulation‐based<i>N</i>‐level inverter with reduced switching frequency and harmonics

Jana, Kartick Chandra; Biswas, Sujit K.

doi:10.1049/iet-pel.2015.0101

“…The discrete-time model will be used to predict the future value of grid current from voltages and measured currents at the k t sampling instant [3]. So the grid current derivative dt di is replaced by a forward Euler approximation.…”

Section: B Discrete-time Model For Predictionmentioning

confidence: 99%

Predictive Control of a T-type Inverter in Wind Energy Conversion Systems

Yang¹,

Yang²,

Fang³

2017

Proceedings of the 2017 International Conference on Electronic Industry and Automation (EIA 2017)

0

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Abstract-A new controlling method of three level inverters is proposed in this paper. Three-level T inverters are widely used in industry for high-power, medium-voltage power conversion and drives. Topics related to power losses due to commutation and quality of the output current is relevant issues in this power range. The neutral-point balancing problem in this topology is another subject that has been studied in recent years. Among the most common control methods for this converter, the literature states are non linear techniques, like hysteresis control, and linear methods, like the use of PI controllers in conjunction with pulse width modulation. The general predictive control scheme is applied here to the inverter. The behavior of the system is predicted for each possible switching state of this kind of inverter. The switching state that minimizes a given cost function is selected to be applied during the next sampling interval following the same strategy.

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“…The general predictive control scheme is applied here to the T-type inverter [3] . The behaviour of the system is predicted for each possible switching state of this kind of inverter.…”

Section: Paper Radio Network Predictive Control Of a T-type Invertermentioning

confidence: 99%

Radio Networks Predictive Control of a T-type Inverter in Wind Energy

Jian-jun

¹

,

Yang²,

Yang³

et al. 2016

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Abstract-A new controlling method of three level inverters is proposed in this paper. Three-level T inverters are widely used in industry for high-power, medium-voltage power conversion and drives. Topics related to power losses due to commutation and quality of the output current is relevant issues in this power range. The neutral-point balancing problem in this topology is another subject that has been studied in recent years. Among the most common control methods for this converter, the literature states are non linear techniques, like hysteresis control, and linear methods, like the use of PI controllers in conjunction with pulse width modulation. The general predictive control scheme is applied here to the inverter. The behavior of the system is predicted for each possible switching state of this kind of inverter. The switching state that minimizes a given cost function is selected to be applied during the next sampling interval following the same strategy.

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“…Several topologies for multilevel inverters have been proposed in the past decades, including diode-clamped [9], flying capacitor [1], cascaded H-bridge [10] and modular multilevel [11]. For a given multilevel converter topology, modulation scheme is a key factor [12][13][14][15][16][17]. Among various modulation schemes, space vector pulse width modulation (SVPWM) scheme is an attractive candidate due to its flexibility to optimize switching waveforms and its convenience to be implemented in digital signal processors [1,[12][13][14].…”

Section: Introductionmentioning

confidence: 99%

“…For a given multilevel converter topology, modulation scheme is a key factor [12][13][14][15][16][17]. Among various modulation schemes, space vector pulse width modulation (SVPWM) scheme is an attractive candidate due to its flexibility to optimize switching waveforms and its convenience to be implemented in digital signal processors [1,[12][13][14]. Generally, most SVPWM schemes can be implemented with the following three steps:…”

Section: Introductionmentioning

confidence: 99%

A Switching Frequency Optimized Space Vector Pulse Width Modulation (SVPWM) Scheme for Cascaded Multilevel Inverters

Tang

¹

,

Zhang

²

,

Liu

³

et al. 2017

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This paper presents a novel switching frequency optimized space vector pulse width modulation (SVPWM) scheme for cascaded multilevel inverters. The proposed SVPWM is developed in a α β coordinate system, in which the voltage vectors have only integer entries and the absolute increment of coordinate values between adjacent vectors is equal to dc-bus voltage of power cells (1 pu). The new SVPWM scheme is built with three categories of switching paths. During each switching path, the change of one phase voltage is limited in 1 pu. This contributes to decrease the number of commutations of switches. The proposed SVPWM scheme is validated on a 7-level cascaded inverter and the results show that it significantly outperforms traditional SVPWM schemes in terms of decreasing the number of switch commutations.

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Generalised switching scheme for a space vector pulse‐width modulation‐basedN‐level inverter with reduced switching frequency and harmonics

Cited by 43 publications

References 34 publications

Predictive Control of a T-type Inverter in Wind Energy Conversion Systems

Predictive Control of a T-type Inverter in Wind Energy Conversion Systems

Radio Networks Predictive Control of a T-type Inverter in Wind Energy

A Switching Frequency Optimized Space Vector Pulse Width Modulation (SVPWM) Scheme for Cascaded Multilevel Inverters

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