High-Frequency AC-Link PV Inverter

Amirabadi, Mahshid; Balakrishnan, A.; Toliyat, H.A.; Alexander, William C.

doi:10.1109/tie.2013.2245616

Cited by 98 publications

(31 citation statements)

References 13 publications

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“…The control-to-output transfer function derived for the flyback converter is shown in equation (10). The derived transfer function can be validated by comparing it with an exact model of the PSIM plot as shown in Fig.…”

Section: A Stand-alone Operationmentioning

confidence: 99%

A Flyback-Assisted Single-Sourced Photovoltaic Power Conditioning System Using an Asymmetric Cascaded Multilevel Inverter

Manoharan¹,

Ahmed²,

Park³

2016

Journal of Power Electronics

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This paper proposes a power conditioning system (PCS) for distributed photovoltaic (PV) applications using an asymmetric cascaded multilevel inverter with a single PV source. One of the main disadvantages of the cascaded multilevel inverters in PV systems is the requirement of multiple isolated DC sources. Using multiple PV strings leads to a compromise in either the voltage balance of individual H-bridge cells or the maximum power point tracking (MPPT) operation due to localized variations in atmospheric conditions. The proposed PCS uses a single PV source with a flyback DC-DC converter to facilitate a reduction of the required DC sources and to maintain the voltage balance during MPPT operation. The flyback converter is used to provide input for low-voltage H-bridge cells which processes only 20% of the total power. This helps to minimize the losses occurring in the proposed PCS. Furthermore, transient analyses and controller design for the proposed PCS in both the stand-alone mode and the grid-connection mode are presented. The feasibility of the proposed PCS and its control scheme have been tested using a 1kW hardware prototype and the obtained results are presented.

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Section: A Stand-alone Operationmentioning

confidence: 99%

A Flyback-Assisted Single-Sourced Photovoltaic Power Conditioning System Using an Asymmetric Cascaded Multilevel Inverter

Manoharan¹,

Ahmed²,

Park³

2016

Journal of Power Electronics

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“…Because of solar PV fluctuated output voltage under non-uniform solar conditions DC-DC boost converter has attracted the intention of research in recent year [1][2][3][4]. Therefore, different types of DC-DC converter are being used to attain the required and stable output voltage.…”

Section: Introductionmentioning

confidence: 99%

A New Quadratic Boost Converter with Voltage Multiplier Cell: an Analysis and Assessment

Malik¹,

Ali²,

Xu³

et al. 2016

IJSH

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“…The design and implementation of a high frequency ac link motor drive utilizing this idea has been described in [7]. An inverter for PV applications using a parallel partial resonant ac link has been reported in [8]. However, the use of transformers in a high frequency ac link presents the problem of overvoltages appearing across the transformer windings caused due to the leakage inductance as explained in [9]- [12].…”

Section: Introductionmentioning

confidence: 99%

Single stage transformer isolated high frequency AC link based open end drive

Gandikota

Mohan

2016

2016 IEEE Applied Power Electronics Conference and Exposition (APEC)

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An open end drive configuration utilizing a transformer isolated single phase high frequency ac link is presented. A high frequency ac link enables the use of a compact and light weight transformer to provide voltage transformation and galvanic isolation while the open end configuration leads to an improved utilization of the ac link. The desired output is synthesized using dual cycloconverters modulated using a space vector technique that has been modified to work with a high frequency ac link and leads to single stage conversion. Any change in the switch states is restricted to the zero crossings of the ac link to achieve zero voltage switching in the cycloconverters. The topology described also has the advantage of achieving natural commutation of leakage energy in the transformer windings and avoids the need for additional circuits to achieve the same. The proposed drive is simulated using MATLAB/Simulink and the results are discussed. A hardware prototype has been constructed to demonstrate the implementation of the proposed drive.

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High-Frequency AC-Link PV Inverter

Cited by 98 publications

References 13 publications

A Flyback-Assisted Single-Sourced Photovoltaic Power Conditioning System Using an Asymmetric Cascaded Multilevel Inverter

A Flyback-Assisted Single-Sourced Photovoltaic Power Conditioning System Using an Asymmetric Cascaded Multilevel Inverter

A New Quadratic Boost Converter with Voltage Multiplier Cell: an Analysis and Assessment

Single stage transformer isolated high frequency AC link based open end drive

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