Hybrid SVM-SOPWM Modulation of Current-Fed Three-level Inverter for High Power Application

Kulothungan, Gnana Sambandam; Edpuganti, Amarendra; Rathore, Akshay Kumar; Rodríguez, José; Srinivasan, Dipti

doi:10.1109/tia.2019.2912967

Cited by 14 publications

(8 citation statements)

References 22 publications

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“…On the other hand, the generator inverter is controlled by the two-level SVPWM technique. The components of flux can be estimated by Kulothungan et al (2019):…”

Section: Dpc Strategy With Pi Controllersmentioning

confidence: 99%

A New direct power control method of the DFIG-DRWT system using neural PI controllers and four-level neural modified SVM technique

Benbouhenni

2023

JART

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Recently, direct power control (DPC) based proportional-integral (PI) controllers have become dominant for doubly fed induction generators (DFIGs) due to its simplicity and good dynamic response. But this strategy gives a high total harmonic distortion (THD) of the voltage and a large power ripple. In this paper, a new DPC method (called as NDPC-4L-NSVPWM) is proposed based on a four-level neural space vector pulse width modulation (4L-NSVPWM) and neural PI controllers for direct active and reactive powers command (DRAPC) of a DFIG integrated in a dual-rotor wind turbine (DRWT). This control scheme is based on direct reactive and active powers estimation. Theoretical principles of this strategy are presented along with simulation results. The advantages and robustness of NDPC-4L-NSVPWM control over other DPC with PI controllers (DPC-PI) are presented. The main advantages of NDPC-4L-NSVPWM strategy are relative to its good dynamic response, simplicity of the algorithm and operation at a constant switching frequency. Analysis of NDPC-4L-NSVPWM strategy based DFIG-DRWT has been done in MATLAB/Simulink software. Simulation results validate the performance of the NDPC-4L-NSVPWM strategy by evaluating the THD of current and the reduction of the ripples for the active/reactive power of DFIG-DRWTs.

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“…On the other hand, the generator inverter is controlled by the two-level SVPWM technique. The components of flux can be estimated by Kulothungan et al (2019):…”

Section: Dpc Strategy With Pi Controllersmentioning

confidence: 99%

A New direct power control method of the DFIG-DRWT system using neural PI controllers and four-level neural modified SVM technique

Benbouhenni

2023

JART

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“…According to the magnetic integrated structure, c1 is the difference value of the fluxes of L 1 and L 2 in Phase A. Similarly, c2 is the corresponding difference value in Phase C. Besides, if L 1 /N 1 = L 2 /N 2 can be ensured in the design procedure, then c1 and c2 can be determined in (7). c1 and c2 can be seen as the flux generated by the capacitor current in Phases A and C, respectively.…”

Section: Magnetic Integrated Model Of the Three-phase Lcl Filtermentioning

confidence: 99%

“…Grid-connected inverter acts as the interface between the power generation system and the power grid, and its performance directly affects the quality of the grid-injected current [4,5]. In power electronic converter systems, the pulse width modulation scheme, which can produce serious differential mode (DM) interference due to the characteristic of PWM, is commonly applied [6,7]. Relevant DM interference exists in form of harmonics at various frequencies, especially around the integral times of switching frequency [8].…”

Section: Introductionmentioning

confidence: 99%

Magnetic integrated LCL filter design for a 2.5 kW three-phase grid-connected inverter with double closed-loop control

Feng

Jiang

Jin³

et al. 2021

J. Power Electron.

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Output filter is an essential part of a grid-connected inverter used for improving the quality of a grid-injected current. The use of LCL filters in power converters in microgrid applications is more preferred compared with L or LC filters because of their better harmonic attenuation capability. However, LCL filter still occupies a main part of the weight and volume of the whole system. Thus, more progress can be further developed with this consideration. In this paper, based on a 2.5 kW threephase voltage source inverter, a magnetic-integrated LCL filter is designed by sharing an EIE-type core to reduce weight and size significantly. With the magnetic coupling influence taken into consideration, more effective design principles of the filter are discussed according to theoretical analysis and mathematical modeling. Meanwhile, a double closed-loop control strategy is utilized to eliminate the resonance introduced by the LCL filter and stabilize the system. Simulation and practical experiments are conducted with a detailed comparison between the discrete and integrated LCL filters, which can verify the feasibility and validity of the proposed method.

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“…In order to control the MLIs, different strategies such as selective harmonic elimination, 17 hybrid modulation, 18 types of pulse width modulation like space vector modulation (SVM), 19 phase disposition (PD), phase opposite disposition (POD), and alternative phase opposite disposition (APOD) 20 have been proposed in the literature. Nearest level control (NLC) is a low switching frequency method and therefore offers lower switching losses in compare with typical switching methods.…”

Section: Switching Strategy For Proposed Topologymentioning

confidence: 99%

“…In order to control the MLIs, different strategies such as selective harmonic elimination, hybrid modulation, types of pulse width modulation like space vector modulation (SVM), phase disposition (PD), phase opposite disposition (POD), and alternative phase opposite disposition (APOD) have been proposed in the literature.…”

Section: Switching Strategy For Proposed Topologymentioning

confidence: 99%

New generalized topologies of asymmetric modular multilevel inverter based on six‐switch H‐bridge

Ghodsi

Barakati

2020

Circuit Theory & Apps

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In this paper, for high and low numbers of voltage levels, two new generalized multilevel converters are introduced, which comprise a six-switch H-bridge and several switched-source units. Switched-source units consist of bidirectional and unidirectional switches along with a dc voltage source. The two proposed topologies are compared with topologies based on the six-switch Hbridge, conventional H-bridge, and some new topologies regarding the number of switches, dc voltage sources, gate drivers, and per-unit voltage block on switches. The comparison results reveal the superiority of the proposed topology with low number of voltage level (LNL) and proposed topology with high number of voltage level (HNL) regarding the per-unit voltage block and number of elements, respectively. Thus, the proposed topologies lead to reduction cost and weight of system. Furthermore, for high number of levels, HNL topology is more appropriate than LNL topology and vice versa. The performances of the proposed 15-level LNL and 61-level topologies are simulated by MATLAB, and proposed 15-level LNL topology in producing all voltage levels is validated by experimental results. K E Y W O R D S asymmetric topology, grid connected, H-bridge, multilevel inverter, prototype

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Hybrid SVM-SOPWM Modulation of Current-Fed Three-level Inverter for High Power Application

Cited by 14 publications

References 22 publications

A New direct power control method of the DFIG-DRWT system using neural PI controllers and four-level neural modified SVM technique

A New direct power control method of the DFIG-DRWT system using neural PI controllers and four-level neural modified SVM technique

Magnetic integrated LCL filter design for a 2.5 kW three-phase grid-connected inverter with double closed-loop control

New generalized topologies of asymmetric modular multilevel inverter based on six‐switch H‐bridge

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