Three Phase Two Leg Neutral Point Clamped Converter with output DC Voltage Regulation and Input Power Factor Correction

Sirisha, B.; Kumar, P. Satish; Susheela, N.

doi:10.11591/ijpeds.v2i2.226

Cited by 8 publications

(6 citation statements)

References 23 publications

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“…Because the number of sources required for the operation is limited, the circuit is more cost effective. The [18] topology requires more capacitors and switches, and it cannot withstand fault conditions. The circuit concept of [19] necessitates a greater number of DC sources than the proposed topology.…”

Section: Resultsmentioning

confidence: 99%

“…1, a conventional five-level converter has a two-stage structure with boost conversion operation, but the drawback is that double the AC voltage is required to achieve dc link voltage. Researchers have recently attempted to combine an NCA inverter with a switched capacitor to improve voltage gain [18][19][20]. To increase the voltage, the gain of the circuit switched capacitor connected in series with the DC link capacitor is discharged at the same time.…”

Section: Introductionmentioning

confidence: 99%

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Novel Fault Analysis and Compensation in 5-Level Multilevel DC-AC Converter

Parimalasundar¹,

Suresh

2022

ECJSE

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Existing Neutral clamped active (NCA) inverter has the property of common mode voltage with high frequency which can reduce the severity with less voltage gain. A newly designed 5L NCA inverter can capable have achieved voltage step-up with a one stage inversion process. Proposed circuit common ground increases voltage utilization in DC link and also mitigates common mode voltage with high frequency. Proposed topology has advantage of more compact and less voltage stress over existing two stage topology. Proposed circuit has only seven power switches with two capacitors, whereas existing topology is designed with 10 switches with 3 capacitors, so arrangement can obtain more efficiency. Implementation of this proposed topology is initially design in simulink platform, and the simulation results are finally verified in a proto-type model with power rating of 2000 W to validate its feasibility and performances with its fault clearance ability.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Novel Fault Analysis and Compensation in 5-Level Multilevel DC-AC Converter

Parimalasundar¹,

Suresh

2022

ECJSE

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“…The combination of semiconductor switches and capacitors produce output voltage waveforms with smaller steps and the power semiconductors should withstand the reduced voltages. The major advantages of MLI are 1513 quality in waveform, output voltage and input current with less distortion, stress on device is reduced, reduced common mode voltage, switching losses are lower and higher efficiency [6]- [10]. The term multilevel starts from three levels.…”

Section: Introductionmentioning

confidence: 99%

Performance Analysis of FPGA based Diode Clamped Multilevel Inverter Fed Induction Motor Drive using Phase Opposition Disposition Multicarrier Based Modulation Strategy

Susheela¹,

Kumar²

2017

IJPEDS

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Multilevel inverters (MLI) are becoming more popular over the years for medium and high power applications because of its significant merits over two level inverters. This paper presents an implementation of multicarrier based sinusoidal pulse width modulation technique for three phase seven level diode clamped multilevel inverter. This topology is operated under phase opposition disposition pulse width modulation technique. The performance of three phase seven level diode clamped inverter is analyzed for induction motor (IM) load. Simulation is performed using MATLAB/ SIMULINK. Experimental results are presented to validate the effectiveness of the operation of the diode clamped multilevel inverter using field programmable gate array.

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“…Advanced multilevel inverter topologies have been proposed recently such as hybrid multilevel inverter, soft switching inverter and generalized multilevel inverter. The multilevel inverters have been extensively used in applications like FACTS, tractions and industrial drives [14][15][16]. In this paper, phase disposition (PD), alternate phase opposition disposition (APOD) sinusoidal pulse width modulation(SPWM) techniques are utilized to drive the single phase diode clamped multilevel inverter (DCMLI) and hybrid inverter for different output levels.…”

Section: Introductionmentioning

confidence: 99%

Comparative Analysis of Carrier based techniques for Single phase Diode Clamped MLI and Hybrid inverter with reduced components

Susheela¹

2017

IJEECS

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<p>The multilevel inverters have highly desirable characteristics in high power high voltage applications. The multilevel inverter was started first with diode clamped multilevel inverter. Later, various configurations have been came into existence for many applications. However the multilevel inverters have some demerits such as requiring higher number of components, PWM control method is complex and capacitor voltage balancing problem. The hybrid multilevel inverter presented in this paper has superior characteristics over conventional multilevel inverters. The hybrid multilevel inverter employs fewer components and less carrier signals when compared to conventional multilevel inverters. It consists of level generation and polarity generation stages which involves high frequency and low frequency switches. The complexity and overall cost for higher output voltage levels are greatly reduced. Implementation of single phase 7-level, 9-level and 11-level diode clamped multilevel inverter and hybrid multilevel inverter has been performed using sinusoidal pulse width modulation (SPWM) strategies i.e., phase disposition (PD), alternate phase opposition disposition (APOD). Also these techniques are compared in terms of total harmonic distortion (THD) for various modulation indices and observed to be greatly improved in case of hybrid inverter when compared to diode clamped inverter. The comparative study of performance for single phase diode clamped multilevel inverter and hybrid inverter is analyzed with different loads. Simulation is performed using MATLAB/ SIMULINK. </p>

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Three Phase Two Leg Neutral Point Clamped Converter with output DC Voltage Regulation and Input Power Factor Correction

Cited by 8 publications

References 23 publications

Novel Fault Analysis and Compensation in 5-Level Multilevel DC-AC Converter

Novel Fault Analysis and Compensation in 5-Level Multilevel DC-AC Converter

Performance Analysis of FPGA based Diode Clamped Multilevel Inverter Fed Induction Motor Drive using Phase Opposition Disposition Multicarrier Based Modulation Strategy

Comparative Analysis of Carrier based techniques for Single phase Diode Clamped MLI and Hybrid inverter with reduced components

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