Space-Vector-Based Generalized Discontinuous Pulsewidth Modulation for Three-Level Inverters Operating at Lower Modulation Indices

Bhattacharya, Subhadeep; Mascarella, Diego; Joós, G.

doi:10.1109/jestpe.2017.2666153

Cited by 42 publications

(16 citation statements)

References 38 publications

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“…Three level pulse width modulated waveforms can be generated by sine carrier PWM. Sine carrier PWM is generated by comparing the three reference control signals with two triangular carrier waves [6,12]. The three-level sine-PWM inverter is implementation as a two-level inverter using the same principle.…”

Section: Sinusoidal Pulse Width Modulation Techniquementioning

confidence: 99%

“…Once the nearest three vectors have been identified, by using the volt-second balance method, the on-time calculations of the corresponding vectors can be developed as the following expressions. When the voltage in the second sector is equal to the time synchronization equation; can be written as in (12). By solving the 3 equations above, the on-time of the concerned vectors can be computed by [14]:…”

Section: Three-level Inverters Space Voltage Vector Algorithmmentioning

confidence: 99%

“…As compared with two-level inverters, multilevel inverters have multiple advantages, for example, low harmonics in output voltages and current, less dv/dt, lower power losses across switching devices, less common mode voltages, and higher quality output waveform [3][4][5][6][7]. Therefore a new family of multilevel inverters has emerged as the solution for different applications; such as, AC power supplies, large powerful engine drivers, transmission, distribution systems and medium voltage grid [8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

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PWM control techniques for three phase three level inverter drives

Kadum

2020

TELKOMNIKA

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In this paper two very efficient pulse width modulation techniques were discussed named Sin pulse width modulation and space vector pulse width modulation. The basic structure of the three-level inverter neutral-point clamped is introduced and the basic idea about space vector pulse width modulation for three-level voltage source inverter has been discussed in detail. Nearest three vectors space vector pulse width modulation control algorithm is adopted as the control strategy for the three phase three level NPC inverter in order to compensate the neutral-point shifting. Mathematical formulation for calculating switching sequence has determined. Comparative analysis proving superiority of the space vector pulse width modulation technique over the conventional pulse width modulation, and the results of the simulations of inverter confirm the feasibility and advantage of the space vector pulse width modulation strategy over sin pulse width modulation in terms of good utilization of dc-bus voltage, low current ripple and reduced switching frequency. Space vector pulse width modulation provides advantages better fundamental output voltage and useful in improving harmonic performance and reducing total harmonic distortion.

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Section: Sinusoidal Pulse Width Modulation Techniquementioning

confidence: 99%

Section: Three-level Inverters Space Voltage Vector Algorithmmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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PWM control techniques for three phase three level inverter drives

Kadum

2020

TELKOMNIKA

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“…Equation 2is transformed into the dq synchronous rotating coordinate system by constant amplitude coordinates transformation [22]- [25]. (6) In which u grid_dq , u ctrl_dq , i grid_dq is as follows, respectively.…”

Section: Harmonic Model Of Grid Side Invertermentioning

confidence: 99%

“…In order to simplify the analysis, the influence of powergrid harmonic voltage in (18) to (21) is included in the action of controller harmonic voltage. Therefore, the dq component of each order harmonic voltage of power grid in (18) to 21is ignored, and the harmonic voltage equation of the system in steady state can be expressed as (22) to (25) respectively. (25) Considering that the resistance of the grid side inlet reactor of MW class grid-connected converter is generally very small, it can be seen from (22) to (25) that the rotational voltage in each harmonic voltage equation plays a leading role.…”

Section: Design Of Harmonic Current Suppression Control Strateg mentioning

confidence: 99%

Grid-Connected Harmonic Current Suppression of Permanent Magnet Direct Drive Wind Power Converter Based on Current Cross-Coupling Control

Zhang

Wang

2020

IEEE Access

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Due to the power-grid low-order harmonic voltage and the nonlinearity of power electronic devices, the grid-connected converter of wind power generation system produces grid-connected harmonic current. In order to improve the output power quality of full-power grid-connected converter of wind power generation system, based on the detailed analysis of the harmonic mathematical model of grid-side converter, a cross-coupling control strategy for suppressing the low-order harmonic current components is proposed in this paper. In this control strategy, the DC component of each grid-connected harmonic current is detected in the multi-synchronous rotating coordinate system, and the current cross-coupling control method is adopted to realize the accurate control of each harmonic current. The harmonic current cross-coupling controller is analyzed and designed in detail. The proposed control strategy takes into account the cross-coupling effect of each harmonic current, which can effectively reduce the interaction between each harmonic current and the fundamental current, and improve the stability of the system. Simulation and experimental test verify the correctness and feasibility of the proposed control strategy. INDEX TERMS Wind power generation system, grid-connected converter, power quality, harmonic current, cross-coupling.

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Generalized discontinuous PWM strategy for Z-source inverters with switch losses optimization

Jiang,

Wang,

et al. 2024

J. Power Electron.

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Space-Vector-Based Generalized Discontinuous Pulsewidth Modulation for Three-Level Inverters Operating at Lower Modulation Indices

Cited by 42 publications

References 38 publications

PWM control techniques for three phase three level inverter drives

PWM control techniques for three phase three level inverter drives

Grid-Connected Harmonic Current Suppression of Permanent Magnet Direct Drive Wind Power Converter Based on Current Cross-Coupling Control

Generalized discontinuous PWM strategy for Z-source inverters with switch losses optimization

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