Synthesis Methodology for Multipole ZVT Converters

Russi, Jumar Luís; Martins, Mário; Schuch, Luciano; Pinheiro, J.R.; Hey, H.L.

doi:10.1109/tie.2007.895144

Cited by 26 publications

(13 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…It utilizes auxiliary components to limit the di/dt or dv/dt during the commutation period, and thus reduces the overlap between the voltage and current of semiconductor switches. To date, a variety of soft-switching DC-AC topologies have been proposed [4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22]. Among them, the zero-voltage transition (ZVT) pulse-width-modulation (PWM) inverters is a typical soft-switching inverters.…”

Section: Introductionmentioning

confidence: 99%

A High-Precision Control for a ZVT PWM Soft-Switching Inverter to Eliminate the Dead-Time Effect

Kou

Zhang

2016

Energies

View full text Add to dashboard Cite

Attributing to the advantages of high efficiency, low electromagnetic interference (EMI) noise and closest to the pulse-width-modulation (PWM) converter counterpart, zero-voltage-transition (ZVT) PWM soft-switching inverters are very suitable for high-performance applications. However, the conventional control algorithms intended for high efficiency generally results in voltage distortion. Thus, this paper, for the first time, proposes a high-precision control method to eliminate the dead-time effect through controlling the auxiliary current in the auxiliary resonant snubber inverter (ARSI), which is a typical ZVT PWM inverter. The dead-time effect of ARSI is analyzed, which is distinguished from hard-switching inverters. The proposed high-precision control is introduced based on the investigation of dead-time effect. A prototype was developed to verify the effectiveness of the proposed control. The experimental results shows that the total harmonic distortion (THD) of the output current of the ARSI can be reduced compared with that of the hard-switching inverter, because the blanking delay error is eliminated. The quality of the output current and voltage can be further improved by utilizing the proposed control method.

show abstract

Section: Introductionmentioning

confidence: 99%

A High-Precision Control for a ZVT PWM Soft-Switching Inverter to Eliminate the Dead-Time Effect

Kou

Zhang

2016

Energies

View full text Add to dashboard Cite

show abstract

“…To date, a variety of soft-switching DC-AC topologies have been proposed. Among them, the zero-voltage-transition (ZVT) pulse-width-modulation (PWM) inverter is a typical soft-switching inverter [3][4][5][6][7][8][9][10][11]. An auxiliary circuit connected parallel to the main power path is employed in the ZVT PWM inverter, which only operates for a short interval before and after the commutation period of the main switches.…”

Section: Introductionmentioning

confidence: 99%

“…This makes the ZVT inverter closest to the PWM converter counterpart. Compared with other soft-switching inverters, the voltage and current stresses and conduction losses are much lower [3,4]. Contributing to these advantages, the ZVT PWM inverter is well accepted.…”

Section: Introductionmentioning

confidence: 99%

“…However, these topologies need coupled inductors and a large number of auxiliary switches, which increases the cost and difficulty of the circuit realization. The ZVT PWM converter has been synthesized and summarized in [3,4].…”

Section: Introductionmentioning

confidence: 99%

“…Figure 1 depicts the single-phase ARSI topology analyzed in this paper, which consists of a standard H-bridge inverter, an auxiliary circuit, and an LC filter. The proper operation of the auxiliary switches S r1 and S r2 can create zero-voltage-switching (ZVS) conditions for the main switches S 1 -S 4 . Meanwhile, the auxiliary switches can realize zero-current switching (ZCS).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Digital Controller Design Based on Active Damping Method of Capacitor Current Feedback for Auxiliary Resonant Snubber Inverter with LC Filter

et al. 2016

View full text Add to dashboard Cite

Abstract:In some high-performance applications, an LC filter must be added to the auxiliary resonant snubber inverter (ARSI) to reduce the output current ripple. However, resonance occurs due to the additional LC filter, which makes the traditional closed-loop control not suitable to be used directly. Therefore, this paper presents a double-loop digital control based on the active damping method of capacitor current feedback to stabilize the system. Most of the studies on active damping methods are focused on the grid in consideration of zero resistance. However, the load resistance should not be neglected in the drive system. Therefore, the load resistance and digital control delays are considered in this paper. Moreover, an improved loading method is proposed to improve the duty ratio range. In order to verify the effectiveness of the controller, a prototype was developed. The simulation and experimental results demonstrate that soft-switching can be realized for the entire load range. The maximum duty ratio is improved by 0.01 by using the proposed loading method. The resonance can be eliminated by using the proposed control method.

show abstract