An Isolated Resonant AC-Link Three-Phase AC–AC Converter Using a Single HF Transformer

Keyhani, Hamidreza; Toliyat, H.A.; Todorovic, Maja Harfman; Lai, Rongjie; Datta, Rajib

doi:10.1109/tie.2014.2300051

Cited by 40 publications

(15 citation statements)

References 21 publications

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“…Fictitious DC link modulation has been used in [9] where switching schemes are derived mathematically by visualizing matrix (3x1) as combination of space vector modulated three phase AC-DC rectifier superimposed with full bridge inverter with fictitious DC link whereas, in [14] switching modulation scheme has been derived by Sinusoidal Pulse Width Modulation (SPWM). In [17], an isolated three-phase ac-ac converter with a highfrequency ac link and soft switching operation is discussed. However, large di/dt and higher number of switching transitions of switching devices can lead to EMI problem and lower power conversion efficiency, respectively.…”

Section: Introductionmentioning

confidence: 99%

A novel matrix based isolated three phase AC-DC converter with reduced switching losses

Singh

Das

Panda

2015

2015 IEEE Applied Power Electronics Conference and Exposition (APEC)

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This paper presents a matrix based isolated three phase AC-DC converter suitable for aircraft application. A three -phase to single-phase (3x1) matrix topology with novel modulation scheme named as Switched Rectifier Inverter (SRI) is introduced for direct line frequency AC to high frequency AC conversion which in effect, eliminates the requirement of bulky DC link capacitor and therefore, provides high power density essential for the aircraft systems. The high frequency AC output of the matrix (3x1) converter is processed by high frequency transformer followed by rectifier to obtain isolated DC output voltage. The operation of the proposed converter with SRI modulation scheme is explained. Moreover, the input power quality under the proposed modulation scheme is discussed for wide load range. Comprehensive simulation is carried out in PSIM for an example converter of input 120 V (rms), 400 Hz AC to 400 V DC with 8 kW power.

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Section: Introductionmentioning

confidence: 99%

A novel matrix based isolated three phase AC-DC converter with reduced switching losses

Singh

Das

Panda

2015

2015 IEEE Applied Power Electronics Conference and Exposition (APEC)

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“…The limited life time of electrolytic capacitor combined with bulky size can introduce poor reliability and power density of the overall system [10]. Single stage power conversion topology has been introduced in the literature and they promises higher efficiency [11]- [13]. However, they are limited in application because of high di/dt and complexity in control.…”

Section: Introductionmentioning

confidence: 99%

A high power density three phase AC-DC converter for more electric aircraft (MEA)

Singh

Das

Panda

2015

2015 9th International Conference on Power Electronics and ECCE Asia (ICPE-ECCE Asia)

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This paper presents matrix topology (3 x 1) based isolated three phase AC-DC converter suitable for aircraft systems. A novel modulation scheme based on Space Vector Modulation (SVM) is proposed to convert three phase line frequency AC into high frequency AC. The direct conversion of three phase line frequency AC into single phase high frequency AC removes the mandatory DC link capacitor which improves the power density and reliability of the system. Moreover, a variable frequency control is proposed for regulating the output voltage for different loading condition. The switching scheme for the converter is explained in detail and subsequently, the steady state analysis of converter is presented. An example converter of input 120 V rms (3-phase), 400 Hz to output 28 V DC with an output power of 3.3 kW is designed. Comprehensive simulation is carried out using MATLAB Simulink and PSIM based software platform and results are discussed.

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“…High frequency partial-resonant, AC link inverter proposed in [9] offer a single stage, galvanically isolated DC to AC power conversion, along with soft-switching operation for all switches and inherent step up and step down capability. The modulation is computationally very intensive.…”

Section: Introductionmentioning

confidence: 99%

“…Topology proposed in [10,11] is a hard-switched counterpart to the topology of [9]. Those two topologies offer great flexibility and scalability, while providing bidirectional power flow.…”

Section: Introductionmentioning

confidence: 99%

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Three-phase active bridge inverter — 3PAB

Pecelj

Haan

Ferreira

2014

2014 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES)

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An Active-Bridge based, current-source, threephase inverter (3PAB) is proposed. It is a single-stage, galvanically-isolated topology, which enables direct interface to a three-phase grid. Operation is similar to a Dual Active Bridge converter, in which the secondary side H-bridge is replaced with a three-phase bridge.A novel modulation technique presented in the paper enables unidirectional power flow from DC to AC side, while energizing all three output phases in one link cycle. Zero voltage, zero-current turn-on of all devices reduces switching losses and increases efficiency. The proposed topology is a viable solution for applications where a compact and lightweight, galvanicallyisolated inverter is required such as roof-top photovoltaic installations. Keywords-active-bridge three phase inverter; current-source inverter; three-phase inverter; photovoltaic inverter;

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An Isolated Resonant AC-Link Three-Phase AC–AC Converter Using a Single HF Transformer

Cited by 40 publications

References 21 publications

A novel matrix based isolated three phase AC-DC converter with reduced switching losses

A novel matrix based isolated three phase AC-DC converter with reduced switching losses

A high power density three phase AC-DC converter for more electric aircraft (MEA)

Three-phase active bridge inverter — 3PAB

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An Isolated Resonant AC-Link Three-Phase AC–AC Converter Using a Single HF Transformer

Cited by 40 publications

References 21 publications

A novel matrix based isolated three phase AC-DC converter with reduced switching losses

A novel matrix based isolated three phase AC-DC converter with reduced switching losses

A high power density three phase AC-DC converter for more electric aircraft (MEA)

Three-phase active bridge inverter &#x2014; 3PAB

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Three-phase active bridge inverter — 3PAB