Small-Signal Model of Switched Inductor Boost Converter

Yao, Jia; Zheng, Kaisheng; Abramovitz, Alexander

doi:10.1109/tpel.2018.2875438

Cited by 17 publications

(15 citation statements)

References 10 publications

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“…Practical implication of the proposed equivalence hypothesis is extending the TIS-SFG modelling approach [22], conceived for the TI converters, to include switched inductor converters as well. This paper illustrates the small signal modelling of the step-down SI cell to complete the step-up SI cell counterpart model demonstrated earlier [21]. As an example, SI Buck converter is analyzed theoretically and confirmed vs. simulated and experimental results.…”

Section: Discussionmentioning

confidence: 80%

“…The SI Boost (SIB) converter shown in Figure 11 and its equivalent TI Boost (TIB) converter in Figure 12 were analyzed earlier [21]. Here, for completeness of this text, only the equivalence conditions between SIB and TIB are briefly mentioned.…”

Section: Equivalence Of the Si Boost And Ti Boost Convertersmentioning

confidence: 99%

“…While in [21] a step-up SI cell was examined and modeled by the proposed method, here, with the aim to extend the method further, the step-down SI cell is studied in detail. As an application example, in the following, small-signal model of the SI Buck is derived and verified by simulation and experiment.…”

Section: Application To Small Signal Modelling Of Switch Inductor Conmentioning

confidence: 99%

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On the Equivalence of the Switched Inductor and the Tapped Inductor Converters and its Application to Small Signal Modelling

Yao

Zheng

et al. 2019

Energies

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Switched inductor (SI) converters are popular in applications requiring a steeper conversion ratio. However, these converters operate a twin inductor switching cell, which complicates the small-signal modeling. This paper proposes an expeditious small-signal analysis method to model the SI converters. The offered modeling approach is hinged on the analogy existing between the SI converters and certain Tapped Inductor (TI) converters. It is suggested here that by virtue of the analogy of the SI converters and TI converters the small-signal model of the SI converter is identical to that of its ideal TI counterpart. Hence, the recently developed Tapped Inductor Switcher (TIS) methodology can be applied to the modeling of the SI converters as well. As an example, the small-signal model of the Switched Inductor Buck converter is obtained. Theoretical analysis was confirmed by simulation and experimental results. In addition, several other SI converters and their TI counterparts are identified.

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Section: Discussionmentioning

confidence: 80%

Section: Equivalence Of the Si Boost And Ti Boost Convertersmentioning

confidence: 99%

Section: Application To Small Signal Modelling Of Switch Inductor Conmentioning

confidence: 99%

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On the Equivalence of the Switched Inductor and the Tapped Inductor Converters and its Application to Small Signal Modelling

Yao

Zheng

et al. 2019

Energies

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“…As mentioned above, the switched-inductor and capacitor configurations are the most promising solutions to achieve high conversion ratio. [20][21][22][23][24][25][26][27][28][29][30]. To validate the improved performances of the proposed converter, the step-up voltage gain, switch and diode stresses are plotted in this section.…”

Section: Comparative Performance Of the Proposed Regenerative Sc/si Cmentioning

confidence: 99%

“…The idea of switched inductors (SIs) approach is popularly used in DC/DC converter to reduce the pulsating-current drastically while operating continuous conduction mode (CCM). A combined switched-capacitor and switchedinductors type and various similar derived topologies are presented in [20][21][22], to improve the converter performances such as device stress, current ripple and efficiency. In [23], a combined approach of switched-capacitor and cross active network stage (SC-ANC) is proposed, but, it has higher voltage stress and voltage conversion ratio is limited.…”

Section: Introductionmentioning

confidence: 99%

Regenerative switched‐inductor/capacitor type DC–DC converter with large voltage gain for PV applications

Karthikeyan

Kumaravel

Kumar

et al. 2020

IET Power Electronics

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In grid-connected PV applications, the presence of a transformer not only increases the cost, size and weight, but also decreases the whole system efficiency, especially, under poor irradiation conditions. To eliminate the transformer and to meet DC link voltage, a regenerative switched-inductor/capacitor type DC-DC converter with large voltage gain is proposed in this study. In traditional boost type and derived converters, the voltage gain ratio is limited due to voltage stress on the semiconductor devices and low efficiency because of more components count and large duty cycle operation. The proposed converter recycles the energy in lossless passive components and increases the step-up voltage gain, which improves the efficiency. In addition, the converter possesses fewer ripples and smooth continuous current, which reduces the power loss, elongates lifespan of the input source and restricts electromagnetic interference issues. This study presents detailed operating waveforms, modes of operation and performance characteristics of the proposed converter. In order to validate the operation, 500 W experimental prototype is developed and verified with measured results. The proposed converter yields the peak efficiency of 95.20% for the output power of 440 W.

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Dynamic analysis and chaos control of the switched‐inductor boost converter with the memristive load

Zhang

Yang

Wang

2021

Circuit Theory & Apps

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SummaryThis paper investigates dynamic behaviors and the time‐delay feedback control method for a peak current mode (PCM) controlled switched‐inductor boost converter with a memristive load. The research contents include the following: (1) The state equations are constructed for the PCM switched‐inductor boost converter with the memristive load. (2) The bifurcation and chaos behaviors of the boost converter are analyzed by the MATLAB numerical simulation. (3) The Power Simulation (PSIM) circuit simulation of the switched‐inductor boost converter is illustrated the correctness of the MATLAB numerical simulation. (4) The time‐delay feedback control is adopted to suppress the bifurcation and chaos behaviors of the boost converter and is verified being effective.

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Small-Signal Model of Switched Inductor Boost Converter

Cited by 17 publications

References 10 publications

On the Equivalence of the Switched Inductor and the Tapped Inductor Converters and its Application to Small Signal Modelling

On the Equivalence of the Switched Inductor and the Tapped Inductor Converters and its Application to Small Signal Modelling

Regenerative switched‐inductor/capacitor type DC–DC converter with large voltage gain for PV applications

Dynamic analysis and chaos control of the switched‐inductor boost converter with the memristive load

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