A reduced switch extendable-level inverter-fed open-end winding PMSM drive

Aishwarya, V.; Sheela, K. Gnana

doi:10.1007/s00202-021-01215-7

Cited by 5 publications

(12 citation statements)

References 23 publications

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“…The Infinite-Level Inverter (ILI) with enhanced DC-bus utilization was demonstrated [27][28][29][30][31]. The topology consists of three separate units (each unit including a Buck converter followed by an H-bridge inverter), each with its own set of controls [29,30,32]. A three-phase Extendable-Level Inverter (ELI) with fewer switches and the same DC-link utilization as the ILI was proposed [29].…”

Section: Introductionmentioning

confidence: 99%

“…The topology consists of three separate units (each unit including a Buck converter followed by an H-bridge inverter), each with its own set of controls [29,30,32]. A three-phase Extendable-Level Inverter (ELI) with fewer switches and the same DC-link utilization as the ILI was proposed [29]. This paper demonstrates the energy efficiency evaluation of a three-phase ELI.…”

Section: Introductionmentioning

confidence: 99%

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Energy efficiency evaluation of a three-phase extendable-level inverter

Aishwarya

2023

Eng. Res. Express

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This paper details the energy efficiency evaluation of an Extendable-Level Inverter (ELI). ELI achieves very high voltage levels, excellent DC-link utilization, and very good power quality with a minimized component count. An experimental setup of a three-phase ELI is implemented to investigate the power losses and to calculate efficiency. The ELI obtained a high efficiency of 99.09% with reduced switching and conduction power losses of 0.1% and 0.81% respectively. Comparative analysis of the theoretical calculation, simulation results and hardware results validated the consistency of a very high efficiency of over 99.09% for a broad range of operating frequencies. The power quality metrics conformed to the limits prescribed in the IEEE 519 standard.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Energy efficiency evaluation of a three-phase extendable-level inverter

Aishwarya

2023

Eng. Res. Express

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“…In hybrid topology, a fewer number of switching devices with different switching speeds and power ratings are used to achieve a higher number of voltage levels 3 . Some topologies were presented with reduction in the number of switches in symmetrical and asymmetrical configuration to achieve more levels in the output waveform 4‐9 . The grid‐connected applications for feeding real power and reactive power via the photovoltaic system in addition to the mitigation of harmonics were discussed using multilevel inverters 10‐13 .…”

Section: Introductionmentioning

confidence: 99%

“…3 Some topologies were presented with reduction in the number of switches in symmetrical and asymmetrical configuration to achieve more levels in the output waveform. [4][5][6][7][8][9] The grid-connected applications for feeding real power and reactive power via the photovoltaic system in addition to the mitigation of harmonics were discussed using multilevel inverters. [10][11][12][13] To suppress the harmonics produced by the multilevel inverter, many modulation schemes were introduced in the past few years.…”

Section: Introductionmentioning

confidence: 99%

A novel control topology for grid‐integration with modular multilevel inverter

Vanaja¹,

Stonier²,

Moghassemi

2021

Int Trans Electr Energ Syst

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Summary This paper presents a novel control topology for a multilevel inverter with reduced number of power switches for achieving an increased number of levels in output voltage along with improved power quality. The diode clamped multilevel inverter configuration is modified and the gating signals are generated using selective harmonic optimization technique at fundamental frequency using Satin Bower Bird optimization (SBO). It enhances the quality of output voltage waveform with the reduction in total harmonic distortion (THD), less switching power losses, and better efficiency. The inverter is investigated for its competent operation capability on grid‐tied applications. Detailed simulation is conducted and results are presented for various load conditions. To validate the inverter operation, an experimental setup of the modified diode clamped modular inverter (MDCMI) interfacing the grid is presented. The loss analysis is carried out at the inverter and converter segments. Based on the analysis, the proposed control topology demonstrates the reliable and efficient operation of the modular inverter. From the results obtained it is evident that the proposed inverter design suits superlative for the grid applications.

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“…Thus, a novel two parallel inverters structure has been derived and applied to the openingend winding motor (OEWM) [1,2]. In this OEWM system, the three-phase stator winding connected by a traditional motor Y-type connection is opened, and the six terminals are connected with two standard inverters, which are two parallel inverters from the PMSM side [3,4]. According to the power supply, it can be divided into two parallel inverters with independent DC buses and two parallel inverters with a common DC bus.…”

Section: Introductionmentioning

confidence: 99%

Unified coordinated control strategy for two parallel inverters TPOW-PMSM system

et al. 2021

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The three-phase open-winding permanent magnet synchronous motor (TPOW-PMSM) is generally used to drive electric vehicles. The voltage vector spatial distribution and fault-tolerant topological structure of a TPOW-PMSM system with two parallel inverters are analyzed in this paper. Then, based on the unified PWM modulation algorithm, a unified coordinated control strategy based on reference voltage vector 120º decoupling control is proposed. The speed and current double closedloop control systems of two parallel inverters are designed, and a PI + repetitive controller of the speed loop is designed to realize fast and stable speed control. The realization process does not require sector judgment or table lookup calculations, and the switching time of each bridge arm switch tube is determined by the instantaneous value of the three-phase voltage of the two parallel inverters, which simplifies the control algorithm. Experimental results show that the unified coordinated control strategy with the PI + repetitive controller can control the normal operation of a TPOW-PMSM, and realize smooth and reliable transitions from the normal operation state to the fault-tolerant operation state. The proposed unified coordinated control strategy with the PI + repetitive controller effectively suppresses the instantaneous value of system zero-sequence current, and inhibits the influence of the dead zone effect.

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A reduced switch extendable-level inverter-fed open-end winding PMSM drive

Cited by 5 publications

References 23 publications

Energy efficiency evaluation of a three-phase extendable-level inverter

Energy efficiency evaluation of a three-phase extendable-level inverter

A novel control topology for grid‐integration with modular multilevel inverter

Unified coordinated control strategy for two parallel inverters TPOW-PMSM system

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