Benchmark of AC and DC Active Power Decoupling Circuits for Second-Order Harmonic Mitigation in Kilowatt-Scale Single-Phase Inverters

Qin, Zian; Tang, Yi; Loh, Poh Chiang; Blaabjerg, Frede

doi:10.1109/jestpe.2015.2490199

Cited by 106 publications

(31 citation statements)

References 21 publications

(44 reference statements)

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“…Such low frequency component in the input current can effectively be mitigated in any closed-loop system as in [19]- [21]. Furthermore, the low frequency component in the dc-link voltage can be mitigated by means of decoupling circuits as discussed in [22].…”

Section: B Mathematical Derivationmentioning

confidence: 99%

Performance Evaluation of the Single-Phase Split-Source Inverter Using an Alternative DC–AC Configuration

Abdelhakim

Mattavelli

Davari

et al. 2018

IEEE Trans. Ind. Electron.

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This paper investigates and evaluates the performance of a single-phase split-source inverter (SSI), where an alternative unidirectional dc-ac configuration is used. Such configuration is utilized in order to use two common-cathode diodes in a single-device instead of using two separate diodes, resulting in minimum parasitic inductance in the commutation paths. In this paper, the analysis and modulation of the single-phase SSI using this alternative configuration is discussed, and the analysis of the low frequency component in the dc side is introduced. Moreover, the features behind employing the triangular, the trailing-edge sawtooth, and the leading-edge sawtooth carriers with the single-phase SSI are discussed, and the differences among these carriers are highlighted. In order to highlight the performance of the proposed SSI, a comparative study is conducted with the two-stage architecture and the single-phase quasi-Z-source inverter (qZSI). The introduced analysis is enhanced with simulation results using MATLAB/PLECS models, where a 1-kVA single-phase SSI is designed and simulated. Finally, the designed 1-kVA single-phase SSI is implemented experimentally and tested at different operating points, i.e. at different voltage gains, and a maximum efficiency of 95.5% has been obtained.

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Section: B Mathematical Derivationmentioning

confidence: 99%

Performance Evaluation of the Single-Phase Split-Source Inverter Using an Alternative DC–AC Configuration

Abdelhakim

Mattavelli

Davari

et al. 2018

IEEE Trans. Ind. Electron.

Self Cite

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“…The full-bridge converter here is operated with the bipolar sinusoidal pulse width modulation (SPWM), which helps reduce the level of leakage currents [6]. The ripple eliminator at the DC side, i.e., a boost-type DC/DC converter, is employed because of its better performance on the reduction of total capacitance and also on the efficiency, compared to AC decoupling methods [35]. This full-bridge system has the four main features of the proposed converter: 1) significantly-reduced leakage currents; 2) significantly-reduced total capacitance required; 3) low DC output ripples; 4) capability of bidirectional power flow without limitations on power factors.…”

Section: A a Full-bridge System For Comparisonmentioning

confidence: 99%

“…The V af is higher than the V + due to the boost operation of the ripple eliminator. The level of the voltage V a depends on the capacitors C a , C and also control strategies [35], which is normally set at similar level as the voltage V DC in the proposed converter if the total capacitance used is the same in the two converters. Based on the aforementioned analysis, it is found that the voltage stress of the Q 1 -Q 4 is higher than that of the Q 1f -Q 4f but is similar as that of the Q 5f and Q 6f .…”

Section: B Voltage Stress Of Switchesmentioning

confidence: 99%

Current-Stress Reduction for the Neutral Inductor of $\theta$ -Converters

Ming

Zhong

2017

IEEE Trans. Power Electron.

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Following the recently proposed θ-converter that reduces voltage ripples, leakage currents and total capacitance required in a single-phase converter, this paper further improves the θ-converter by reducing the current stress of the neutral inductor, by relocating it to the DC side without affecting the other functions of the θ-converter. Based on the average circuit model of the proposed converter, it is found that the current flowing through the neutral inductor can be reduced by at least three times and hence, the size of the inductor can be reduced by at least nine times. How to operate the converter to achieve the reduction of the current stress is discussed in detail. Moreover, the selection criteria on the neutral inductor and other passive components used in the proposed converter are discussed in order to minimise their usage. Intensive experimental results are presented to demonstrate that the proposed converter can indeed reduce the current-stress while the other functions of the θ-converter are not affected.

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“…The second harmonic current reduction methods are investigated even in kilowatt-scale converters. In [20] the benchmark study of active power decoupling (APD) for hi-power single-phase inverters was presented, where the feasibility and superiority of the identified solution for APD with the adaptive decoupling voltage control method were experimentally verified. The solar-powered aircraft or vehicle systems generate the specific requirements for used power electronics devices (PED).…”

Section: Introductionmentioning

confidence: 99%

A Conductance-Based MPPT Method with Reduced Impact of the Voltage Ripple for One-Phase Solar Powered Vehicle or Aircraft Systems

Binkowski

2020

Energies

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This paper presents a novel maximum power point tracking method for photovoltaic inverters with a single phase connection to the onboard 400Hz vehicle or aircraft grid, supplying drives operating in a critical mode. By taking into account that the power fluctuations cause voltage ripples at the termini of photovoltaic panels connected to the DC-link capacitor, this paper proposes a conductance base maximum power point tracking method. The impact of varying voltage has been reduced to ensure the constant reference current for the grid current calculation problem, which has been reported in previous studies. Accordingly, a conductance base tracking method, grid current control, is proposed and implemented to ensure the expected output current with respect to varying power. As described in this paper, the exemplified solar converter prototype can implement constant reference photovoltaic current control with a maximum power point achievement under continuous voltage rippling. Experimental results are given to verify the feasibility of the proposed MPPT method, which significantly improves the power efficiency for solar powered vehicles or aircraft.

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Benchmark of AC and DC Active Power Decoupling Circuits for Second-Order Harmonic Mitigation in Kilowatt-Scale Single-Phase Inverters

Cited by 106 publications

References 21 publications

Performance Evaluation of the Single-Phase Split-Source Inverter Using an Alternative DC–AC Configuration

Performance Evaluation of the Single-Phase Split-Source Inverter Using an Alternative DC–AC Configuration

Current-Stress Reduction for the Neutral Inductor of $\theta$ -Converters

A Conductance-Based MPPT Method with Reduced Impact of the Voltage Ripple for One-Phase Solar Powered Vehicle or Aircraft Systems

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