A Digital Method of Power-Sharing and Cross-Regulation Suppression for Single-Inductor Multiple-Input Multiple-Output DC–DC Converter

Wang, Benfei; Liu, Xian; Kanamarlapudi, Venkata Ravi Kishore; Tseng, King Jet; Ukil, Abhisek; Gooi, Hoay Beng

doi:10.1109/tie.2016.2631438

Cited by 80 publications

(70 citation statements)

References 18 publications

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“…Hybrid supply systems may contain multiple power converters or a single multiport power converter. Utilizing multiconverters to manage the power between different sources, not only decreases the reliability but it also may reduce the efficiency . To overcome the aforementioned drawbacks, multi‐input converters (MICs) have been of paramount importance to researchers and engineers .…”

Section: Introductionmentioning

confidence: 99%

“…In the MICs, DC‐DC structures are combined to achieve a single structure for managing the power between different ports. This combination may not only improve the dynamic of the whole system using a central power manager but it also can reduces the losses, weight, and improves reliability . According to how DC‐DC structures are combined, MICs can be categorized into three main groups: (1) electrically coupled MICs (ECMICs), (2) magnetically coupled MICs (MCMICs), and (3) electro‐magnetically coupled MICs (EMCMICs).…”

Section: Introductionmentioning

confidence: 99%

“…Accordingly, to increase the reliability of supply systems, usually, a storage system is used to supply the power in the case that the PV extracted power is not enough. [5][6][7][8][9][10][11][12] In addition, the generated voltage by the commercial products is not as large as the required level for grid connected inverters. Accordingly the voltage gain of conventional boost converters is not as much as the required value.…”

Section: Introductionmentioning

confidence: 99%

“…Utilizing multiconverters to manage the power between different sources, not only decreases the reliability but it also may reduce the efficiency. 6 To overcome the aforementioned drawbacks, multi-input converters (MICs) have been of paramount importance to researchers and engineers. 10 The MICs provide a single structure with multiple degrees of freedom from control systems point of view.…”

Section: Introductionmentioning

confidence: 99%

“…This combination may not only improve the dynamic of the whole system using a central power manager but it also can reduces the losses, weight, and improves reliability. 6 According to how DC-DC structures are combined, MICs can be categorized into three main groups: (1) electrically coupled MICs (ECMICs), (2) magnetically coupled MICs (MCMICs), and (3) electro-magnetically coupled MICs (EMCMICs). [13][14][15] Magnetically coupled MICs utilize a multi-winding transformer to control the power flow between ports.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

A bidirectional high step-up multi-input DC-DC converter with soft switching

KhademiAstaneh

Javidan

Valipour

et al. 2018

Int Trans Electr Energ Syst

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Summary With the advancement of technology in renewable energy resources, the researchers and engineers have been more interested in utilizing such energy resources in various types of applications. To utilize commercial loads, the produced energy should be transferred to a high voltage (HV) DC link. In this paper, a double input HV gain DC‐DC converter is proposed. The soft switching capability and bidirectional power flow are achieved in the proposed topology using a coupled inductor structure. Thanks to an improved switching strategy for different power flow modes, soft switching operation of four main switches is achieved in low voltage (LV) to HV power flow direction. In HV to LV power transfer, the soft switching of the half of switches still exists. Moreover, a HV gain is achieved due to utilizing the coupled inductor. To validate the operation of proposed converter in different operation modes, a laboratory prototype was tested, which its results is presented in the paper.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

A bidirectional high step-up multi-input DC-DC converter with soft switching

KhademiAstaneh

Javidan

Valipour

et al. 2018

Int Trans Electr Energ Syst

View full text Add to dashboard Cite

show abstract

Design‐oriented analysis of cross‐regulation in single‐inductor dual‐output Buck‐boost DC‐DC converters

Zhang

Jing

Liu

et al. 2021

Circuit Theory & Apps

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In single‐inductor multiple‐output converters, the multiplexing of the inductor at each output port will inevitably lead to severe cross‐regulation effect. This paper aims to investigate the steady state performance and transient state cross‐regulation in the single‐inductor multiple‐output DC‐DC converters. A ripple‐based averaged model is proposed to describe the inherent cross‐regulation characteristics of single‐inductor dual‐output (SIDO) Buck‐Boost DC‐DC converter by considering the three piecewise ripple of the inductor current. Then, the steady state performance analysis is carried out to show the cross‐coupling effect on the power distribution relationship and voltage gains of the two output ports. Furthermore, the nonlinear modal series representation is derived to describe the transient behavior of SIDO converter under different load disturbances. More significantly, based on the nonlinear modal analysis, the cross‐regulation factors are proposed to evaluate the influence of some key circuit parameters on the transient state cross‐regulation. It is found that increasing kp2 may improve the transient cross‐regulation performance of the output voltages, but non‐ideal factor VF has little influence on the transient cross‐regulation. This provides much design‐oriented information to suppress the cross‐regulation and optimize the transient performance of the SIDO converter. Finally, the effectiveness of the above analysis is verified by the experimental results. This paper proposes one design‐oriented analysis method to investigate the cross‐regulation in the SIDO DC‐DC converters based on the ripple‐based averaged model. Firstly, the steady state analysis is carried out to show the cross‐coupling effect on the power distribution of the two output ports. Then, according to the nonlinear modal analysis, the cross‐regulation factors are defined to identify the key parameters for the transient cross‐regulation, which provides some design‐oriented information to suppress the cross‐regulation.

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Analysis of single input dual output buck converter with reduced cross regulation using decoupled sliding mode control strategy

Nanthagopal

Srinivasan

2022

Circuit Theory & Apps

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In the present scenario, single input dual output (SIDO) converters are remarkably required for wide range of applications, as it is capable of handling two outputs with a single source. The general advantages of SIDO converters are reduced number of components in the topology; power rating can be increased or decreased depending on the application and it ease of control. However, it faces with a common problem of cross regulation occurring due to the change of load in anyone of the load terminals. This paper proposes a control technique for a SIDO buck converter (SIDO‐BC) to have a mitigated cross regulation scenario during load change. Decoupled sliding mode controller (D‐SMC) is developed for the SIDO‐BC by considering the boundary limits of the inductor current. The D‐SMC‐based SIDO‐BC provides better output regulation with mitigated cross regulation when compared to the conventional techniques. The topological small signal model derivation of the SIDO‐BC is firmly derived, and the controller is designed and developed in such way to provide a stabilized regulated output. The entire system is implemented in simulation and in experimental hardware to validate the performance.

show abstract

A Digital Method of Power-Sharing and Cross-Regulation Suppression for Single-Inductor Multiple-Input Multiple-Output DC–DC Converter

Cited by 80 publications

References 18 publications

A bidirectional high step-up multi-input DC-DC converter with soft switching

A bidirectional high step-up multi-input DC-DC converter with soft switching

Design‐oriented analysis of cross‐regulation in single‐inductor dual‐output Buck‐boost DC‐DC converters

Analysis of single input dual output buck converter with reduced cross regulation using decoupled sliding mode control strategy

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