Design and experimental operation of a control strategy for the buck–boost DC–AC Inverter

Sanchis, Pablo; Ursúa, Alfredo; Gubía, E.; Marroyo, Luis

doi:10.1049/ip-epa:20045139

Cited by 49 publications

(12 citation statements)

References 11 publications

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“…It also illustrates the relationship between the output voltage reference and the duty cycle to operate the buck-boost-inverter. Based on the averaging concept for the buck-boost-inverter [1,3], the voltage relationship between the input and the output for the continuous conduction mode (CCM) is given by …”

Section: Digital Control Of Buck-boost-invertermentioning

confidence: 99%

“…where the control variable i C1.ref (k) is the reference for the capacitor current [3]. Then, the output voltage of the buck-…”

Section: Digital Control Of Buck-boost-invertermentioning

confidence: 99%

“…The PI2 is for the inner current control loop that should be designed to allow at least 50º phasemargin and a high bandwidth. The PI1 is dealing with the outer output voltage control loop that should be designed with the same phase-margin and lower bandwidth compared with the inner loop [3].…”

Section: Digital Control Of Buck-boost-invertermentioning

confidence: 99%

“…Recent developments in DC-AC conversion include converter topologies that provide boosting and inversion functions in a single power conversion stage based on a boostinverter and a buck-boost-inverter [1][2][3]. The single-stage nonisolated inverter topologies are more attractive because of the reduced number of components and power stages offering lower cost and more efficient conversion, unless the inverter requires isolation between the input/output.…”

Section: Introductionmentioning

confidence: 99%

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A digitally controlled single-phase buck-boost-inverter using a dual-DSP

Jang

Agelidis

2013

IECON 2013 - 39th Annual Conference of the IEEE Industrial Electronics Society

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The buck-boost-inverter provides boosting and inversion functions in a single power processing stage based on the front-end buck-boost converter characteristics. Digital control is crucial in modern power electronic converters where more complex control needs to be developed and a friendly user interface is desired simultaneously. In this paper, a digitally controlled buck-boost-inverter based on a dual-Digital Signal Processor (D-DSP) is proposed. The D-DSP consists of two DSP units, namely the TMS320C28346 and TMS320F28027. The benefits of the proposed implementation include high speed, lowcost, satisfactory performance, easy implementation of a relatively complex algorithm, and user friendly interface. The control design, analysis, simulation and experimental results taken from a laboratory prototype are presented to confirm the performance of the digitally controlled buck-boost-inverter.

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Section: Digital Control Of Buck-boost-invertermentioning

confidence: 99%

“…where the control variable i C1.ref (k) is the reference for the capacitor current [3]. Then, the output voltage of the buck-…”

Section: Digital Control Of Buck-boost-invertermentioning

confidence: 99%

Section: Digital Control Of Buck-boost-invertermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A digitally controlled single-phase buck-boost-inverter using a dual-DSP

Jang

Agelidis

2013

IECON 2013 - 39th Annual Conference of the IEEE Industrial Electronics Society

View full text Add to dashboard Cite

show abstract

“…Moreover, direct control strategies of the output voltage that include passivitybased schemes [4] and PID-type sliding mode controllers [5] have been used for regulation purposes. PI controllers also offer interesting performance in full-bridge nonlinear inverters [6], [7], [8], [9]. However, it is well known that PI control designs are based on a small signal model; this leads to output waveforms being sensitive to power stage parameter variations, such as the output load.…”

Section: Introductionmentioning

confidence: 99%

Robust Step-up DC/AC conversion with a Full-Bridge Non-Inverting Buck-Boost

Biel

Fossas

Olm

2007

2007 IEEE International Conference on Control Applications

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Abstract-The substitution of the original switches by a full-bridge in a Non-Inverting Buck-Boost converter results in an inverter capable of performing step-down and step-up tasks under sliding mode control. Furthermore, semi-infinite programming techniques are used to minimize power loses while preventing control action saturation. The performance of the inverter is shown to be robust in front of load perturbations. The procedure assumes known bounds for the disturbances, as well as full state knowledge. Realistic simulations validate the proposed scheme.

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Grid‐connected buck–boost inverter without shoot‐through issue and with reduced voltage stress

Yao

2021

Circuit Theory & Apps

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Grid-connected buck-boost inverters are used in wide input-voltage range application. However, there is a shoot-through problem in traditional gridconnected inverters. Moreover, voltage stress of semiconductors is high in conventional buck-boost inverters. Therefore, a grid-connected buck-boost inverter without shoot-through issue and with reduced voltage stress is presented. The proposed inverter is a single-stage system. When input voltage is higher than the grid voltage, the proposed inverter works in buck mode; when input voltage is lower than the grid voltage, it operates in boost mode. Thus, voltage stress of semiconductors is reduced. Only one switch is operated in high frequency in each period, so efficiency of the inverter can be improved.Operating principle of the proposed inverter is illustrated. Voltage stress analysis, loss calculation, and filter design guidelines and example are given.Finally, simulation and experimental results of a 300-W proposed inverter confirm the theoretical analysis.

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Design and experimental operation of a control strategy for the buck–boost DC–AC Inverter

Cited by 49 publications

References 11 publications

A digitally controlled single-phase buck-boost-inverter using a dual-DSP

A digitally controlled single-phase buck-boost-inverter using a dual-DSP

Robust Step-up DC/AC conversion with a Full-Bridge Non-Inverting Buck-Boost

Grid‐connected buck–boost inverter without shoot‐through issue and with reduced voltage stress

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