CCM operation analysis of the single-phase three-level quasi-Z-source inverter

Husev, Oleksandr; Roncero‐Clemente, Carlos; Stepenko, Serhii; Vinnikov, Dmitri; Romero‐Cadaval, Enrique

doi:10.1109/epepemc.2012.6397221

Cited by 28 publications

(18 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…4 c ) for an AC component. A similar approach was used in [31] except that low frequency fluctuations in the inductors were not considered. It is relevant if

(||, X_{C}) ≪ (||, X_{L})

, where X C is the capacitor reactance and X L is the inductive reactance.…”

Section: General Design Guidelinesmentioning

confidence: 99%

Single phase three‐level neutral‐point‐clamped quasi‐Z‐source inverter

Husev¹,

Roncero‐Clemente

Romero‐Cadaval

et al. 2015

IET Power Electronics

159

View full text Add to dashboard Cite

This study presents a novel three-level neutral-point-clamped quasi-Z-source inverter in the single-stage buck-boost multilevel inverter family. The topology was derived by combining the properties of the quasi-Z-source network with those of a three-level neutral point clamped inverter. It features such advantages as low voltage stress of the switches, single-stage buck-boost power conversion, continuous input current, short-circuit withstandability and low total harmonic distortion of the output voltage and current. The authors present a steady state analysis of the topology along with a special modulation technique to distribute shoot-through states during the whole fundamental period. Component design guidelines for a singlephase case study system are described. All the findings have been confirmed by simulations and experiments. The topology could be recommended for applications requiring continuous input current, high input voltage gain and enhanced quality of the output voltage.

show abstract

“…4 c ) for an AC component. A similar approach was used in [31] except that low frequency fluctuations in the inductors were not considered. It is relevant if

(||, X_{C}) ≪ (||, X_{L})

, where X C is the capacitor reactance and X L is the inductive reactance.…”

Section: General Design Guidelinesmentioning

confidence: 99%

Single phase three‐level neutral‐point‐clamped quasi‐Z‐source inverter

Husev¹,

Roncero‐Clemente

Romero‐Cadaval

et al. 2015

IET Power Electronics

159

View full text Add to dashboard Cite

show abstract

“…A three-level neutral-point-clamped (3L-NPC) quasi-Zsource inverter (qZSI) proposed recently [1]- [4] is a new modification of the Z-source inverters and qZSI [5]- [11]. It is shown in the Fig.…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation of high frequency 3L-NPC qZS inverter for photovoltaic application

Husev

Stepenko

Roncero‐Clemente

et al. 2013

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

View full text Add to dashboard Cite

show abstract

“…An exhaustive comparison of Z-source inverters on their passive components and semiconductors, and an extensive review of these inverters (main topologies, modelling, control, and modulation techniques) are presented in [6] and [7], [8], respectively. Specifically, quasi-Z-source inverters (qZSIs) offer buck-boost DC voltage and energy conversion capabilities in a single step, which improves reliability and efficiency [1], [9] − [12]. Conventional qZSIs are studied in [1], [9], [10], while [11], [12] a new qZSI topology which combines the qZSI and the three-level neutral-point-clamped inverter, thus offering the advantages of both topologies.…”

Section: Introductionmentioning

confidence: 99%

“…Specifically, quasi-Z-source inverters (qZSIs) offer buck-boost DC voltage and energy conversion capabilities in a single step, which improves reliability and efficiency [1], [9] − [12]. Conventional qZSIs are studied in [1], [9], [10], while [11], [12] a new qZSI topology which combines the qZSI and the three-level neutral-point-clamped inverter, thus offering the advantages of both topologies. PV power generation systems often pose a risk of oscillatory instability due to the non-passive behaviour of power electronics in certain operation conditions [13].…”

Section: Introductionmentioning

confidence: 99%

Frequency Domain Stability Assessment of Photovoltaic Power Generation Systems with Quasi-Z-Source Inverters

Sainz¹,

Monjo²

2024

RE&PQJ

View full text Add to dashboard Cite

Photovoltaic power generation systems are one of the main renewable power sources, and quasi-Z-source inverters are becoming powerful devices to integrate these systems in AC grids. However, stability issues due to the damping behaviour of converters must be considered. There are several studies in this direction but instability concerns are not completely solved yet. This paper contributes with a procedure for the stability assessment of photovoltaic power generation systems with quasiZ-source inverters in the frequency domain. The study is based on the small-signal averaged model of the system expressed in the s-domain and the stability criterion derived from the frequency characteristics of the state-space matrix. The influence of the photovoltaic power generation system operating point on stability is studied by the proposed procedure. Eigenvalue analysis and PSCAD/EMTDC simulations are also performed to validate the obtained results.

show abstract

CCM operation analysis of the single-phase three-level quasi-Z-source inverter

Cited by 28 publications

References 11 publications

Single phase three‐level neutral‐point‐clamped quasi‐Z‐source inverter

Single phase three‐level neutral‐point‐clamped quasi‐Z‐source inverter

Experimental Investigation of high frequency 3L-NPC qZS inverter for photovoltaic application

Frequency Domain Stability Assessment of Photovoltaic Power Generation Systems with Quasi-Z-Source Inverters

Contact Info

Product

Resources

About