Topology analysis of a switched-inductor Z-source inverter

Zhu, Miao; Yu, Kun Shan; Luo, Fang Lin

doi:10.1109/iciea.2010.5516884

Cited by 57 publications

(34 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…5 Variable a is the autotransformer ratio and n is the number of SC cells. 6 In the worst case, the ZSI has other voltage stresses on Z-capacitor, which can be seen in references [32], [34], [35].…”

Section: Comparison Between the Proposed Converter With Conventionmentioning

confidence: 99%

“…For this reason, the proposed structure is compared with conventional step-up inverter solutions, as Z-Source Inverter (ZSI) [10], [32]- [35], Differential Boost Inverter (DBI) [5], [36], conventional two-stage Boost-Buck inverter (dc-dc Boost converter + classical VSI, named as TS-BBI) and classical Buck VSI + autotransformer (named as VSI+AT). This comparison is shown in Tables V and VI, considering a LC filter at the output, 1 Based on [10], [32]- [35]. 2 Based on [5], [36].…”

Section: Comparison Between the Proposed Converter With Conventionmentioning

confidence: 99%

See 1 more Smart Citation

Transformerless Step-Up Inverter Based On Switched-Capacitor Converter Technology

Lazzarin¹,

Pont²,

Waltrich³

2017

Eletrônica de Potência

View full text Add to dashboard Cite

-In this paper the integration between a voltage source inverter (VSI) and a switched capacitor converter (SCC) is proposed to generate a sinusoidal waveform with a double peak voltage value at the converter output terminal, without the use of a transformer or a dc-dc boost converter. The novel structure (VSI-SCC) is designed as a transformerless step-up inverter with linear gain. VSI and SCC models are individually characterized to integrate both structures in only one model. To validate the theoretical analysis a prototype was designed for a power of 1 kW, considering a dc input voltage of 200 V and an ac output voltage of 220 V (rms). In this prototype the VSI converter supplies 110 V (rms) to the SCC converter, and this converter step-up it to 220 V (rms). Furthermore, open and closed-loop control were also tested in the prototype reaching a maximum efficiency of 90%.

show abstract

Section: Comparison Between the Proposed Converter With Conventionmentioning

confidence: 99%

Section: Comparison Between the Proposed Converter With Conventionmentioning

confidence: 99%

Transformerless Step-Up Inverter Based On Switched-Capacitor Converter Technology

Lazzarin¹,

Pont²,

Waltrich³

2017

Eletrônica de Potência

View full text Add to dashboard Cite

show abstract

“…5. This structure consisting of the capacitor and inductor is called quasi-Zsource network [13]. Its operating modes when the network is applied for DC-DC converter with single switch has not been analyzed in detail in [13].…”

Section: Introductionmentioning

confidence: 99%

“…The impedance source networks are widely used in the inverters [13][14][15][16] to increase the voltage boost inversion ability. Likewise, the impedance source networks can also be used in high step-up DC-DC converters to achieve high voltage gain [17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Non-isolated high step-up DC–DC converter adopting auxiliary capacitor and coupled inductor

Ruan

2017

J. Mod. Power Syst. Clean Energy

View full text Add to dashboard Cite

For grid-connected power system based on photovoltaic (PV) source and fuel cells, high step-up and high-efficiency DC-DC converters are needed, due to the bus voltage of the grid-connected inverter is much higher than the output voltage of PV and fuel cells. In this paper, a novel high step-up converter is proposed. An auxiliary capacitor is introduced into the boost converter, which serves as a voltage source. It is in series with the input voltage source with the same voltage polarities. Thus, the input voltage is increased equivalently and the voltage gain is increased accordingly. To reduce the voltage stresses of the switch and the diode, multiple output capacitors are introduced. The voltage of each output capacitor is degraded leading to the reduced voltage stress. To replenish energy for the multiple output capacitors, a coupled inductor is adopted. Based on this, high step-up converter adopting auxiliary capacitor and coupled inductor is derived. The operating principles and voltage gain of the proposed converters are analyzed in this paper. In the end, experiment results are given to verify the theoretical analysis.

show abstract

“…In [7]- [10], a high-voltage was achieved by adjusting the turn-ratio of the transformer or coupled inductor. The switched-capacitor (SC), switchedinductor (SL), and hybrid switched-capacitor/switchedinductor combined with the classical ZSI topology were applied to dc-dc conversion in [11]- [14]. They provided a high-boost in cascade and transformer-less structures.…”

Section: Introductionmentioning

confidence: 99%

Development of Multi-Cell Active Switched- Capacitor and Switched-Inductor Z-Source Inverter Topologies

Ho¹,

Chun²,

Kim³

2014

Journal of Power Electronics

View full text Add to dashboard Cite

This paper proposes new active switched-capacitor and switched-inductor Z-source inverter (ASC/SL-ZSI) topologies, which can provide a higher boost ability with a small shoot-through time. The proposed ASC/SL-ZSIs inherit all of the advantages of the classical ZSI, and have a stronger voltage boost inversion ability when compared with the classical ZSI. Thus, the output ac voltage quality is significantly improved. In addition, more cells can be cascaded in the impedance network in order to obtain a very high boost ability. The proposed topologies can be applied to photovoltaic or fuel-cell generation systems with low-voltage renewal sources due to their wide range of obtainable voltages. Both simulations and the experimental results are carried out in order to verify performance of the proposed topologies.

show abstract

Topology analysis of a switched-inductor Z-source inverter

Cited by 57 publications

References 10 publications

Transformerless Step-Up Inverter Based On Switched-Capacitor Converter Technology

Transformerless Step-Up Inverter Based On Switched-Capacitor Converter Technology

Non-isolated high step-up DC–DC converter adopting auxiliary capacitor and coupled inductor

Development of Multi-Cell Active Switched- Capacitor and Switched-Inductor Z-Source Inverter Topologies

Contact Info

Product

Resources

About