Hybrid Control of Single-Inductor Multiple-Output Converters

Mojallizadeh, Mohammad Rasool; Badamchizadeh, Mohammad Ali

doi:10.1109/tie.2018.2829681

Cited by 13 publications

(8 citation statements)

References 27 publications

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“…Similarly, Figure 9B shows the TSF, delayed TM gate drive, and inductor current in DCM. From (10), the critical inductance is L cri = 270 μH. As can be seen from Figure 9A, the inductor current is in CCM while staying in two bands.…”

Section: Resultsmentioning

confidence: 91%

“…The amount of current drawn from each source will be impacted by the offset time between the switching commands, but the problem of decoupling of power sharing still exists. In Mojallizadeh and Badamchizadeh, 10 a single‐stage single‐input multiple‐output (SIMO) converter with switched linear control strategy has been proposed. The switched linear equations strategy suppressed cross‐regulation inherently by considering minimum dwell‐time constraint for switching loss suppression and electromagnetic interference.…”

Section: Introductionmentioning

confidence: 99%

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Time‐multiplexed hysteretic control for single‐inductor dual‐input single‐output DC‐DC power converter

Alam

Siwakoti

2021

Circuit Theory & Apps

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Single-inductor multi-input single-output (SI-MISO) switching DC-DC power converter architecture is a cost effective solution to applications where multiple input sources are required to be managed with a limited space and cost. This paper presents a new time-multiplexed hysteretic control (TMHC) scheme for SI-DISO topology to decouple the power sharing among two input sources.Unlike previously reported solutions with discontinuous conduction or pseudo-continuous conduction operation of the inductor, this paper focuses on how to keep the inductor current in a continuous conduction mode (CCM) and proposed a control scheme with considerably lower ripple current with fast transition time upon switching and higher efficiency. The mathematical proof using the expressions of inductor ripple current, comparison between efficiency and transition time from one level to other, is derived. Additionally, a low-cost analog circuitry has been implemented to incorporate the proposed control scheme. Experimental results from the hardware prototype are given to verify the proposed control scheme.

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Section: Resultsmentioning

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Time‐multiplexed hysteretic control for single‐inductor dual‐input single‐output DC‐DC power converter

Alam

Siwakoti

2021

Circuit Theory & Apps

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“…Similarly, when the converter operates in the buck-boost mode, the expression of V s1 is given in (9). Here, the switches S o1R and S o12 , are turned on and turned off together.…”

Section: Operation Of D 2 M 2 Converter In G2b and V2v Modesmentioning

confidence: 99%

“…Charging the input source 1 from source 2 is not possible as per the reported structure. A single input multi output buck [8] and boost [9] is reported.…”

Section: Introductionmentioning

confidence: 99%

Dual input–dual output DC–DC converter for solar PV/battery/ultra‐capacitor powered electric vehicle application

Kumaravel

Narayanankutty

Rao

et al. 2019

IET Power Electronics

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Utilisation of more than one energy source in the electric vehicle (EV) ensures the reliable riding of the vehicle without range anxieties. Solar PV, battery and ultra-capacitor are viable sources to power the EV. A novel dual input-dual output dc-dc converter is proposed for the integration of the above sources for the EV application. The converter can be used to transfer power between the input sources and loads/utility grid/other EVs. The proposed converter can be operated in ten different modes using the same structure by controlling the appropriate switches. The equivalent circuits with the analytical waveforms of significant modes of operation of the converter are discussed in this study. The output equations of all ten modes are derived. The theoretical analysis of the converter is verified experimentally using a 1 kW laboratory prototype and the observed experimental results are shown in the study. A strategy for selecting a mode according to the status of the vehicle, grid, battery etc. is developed. The loss breakdown analysis and efficiency profile of the converter are presented. Finally, the performance comparisons of the proposed converter with the reported converters are carried out in terms of component counts, a number of operating modes etc.

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“…Exact feedback linearization (EFL) is an effective technique to solve the problem of the non-minimum phase, and any higher-order nonlinear terms of the original system are not ignored in the linearization process. 20,21 An EFL method 22 is implemented for a SIDO boost converter, which successfully guaranteed the stability of the system under changeable loads. However, the EFL control approach depends strongly on having an exact mathematical model of the controlled object.…”

mentioning

confidence: 99%

Robust control for non‐minimum phase and cross‐regulation in single‐inductor dual‐output boost converter

Yang,

Zhang,

et al. 2023

Circuit Theory & Apps

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SummarySingle‐inductor dual‐output (SIDO) boost converters are used extensively in modern power systems because of their small circuit volume and high efficiency. However, SIDO boost converters exhibit non‐minimum phase property, and the coupling of the inductor current results in coupled dual outputs leading to cross‐regulation, which seriously affects the dynamic performance and stability of the system. To settle the non‐minimum phase issue and suppress the cross‐regulation of SIDO boost converters, proposed herein is a robust control method, which combines the exact feedback linearization (EFL) theory, adaptive technology, and sliding mode control (SMC) method. A nonlinear mathematical model is established, and a set of output functions for full linearization are constructed based on EFL theory. Furthermore, the output functions are linearized, and two single‐input single‐output linear subsystems are obtained. The SMC technologies are used to control the linear subsystems to improve the robustness of the system, and an adaptive mechanism is adopted to update the sliding mode switching gain to reduce chattering. Furthermore, the global asymptotic stability of the control system is proved based on the Lyapunov theory, and the robustness of the closed‐loop system is verified. Simulation and experimental results show that the proposed approach provides better dynamic regulation performance compared with the existing method.

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Hybrid Control of Single-Inductor Multiple-Output Converters

Cited by 13 publications

References 27 publications

Time‐multiplexed hysteretic control for single‐inductor dual‐input single‐output DC‐DC power converter

Time‐multiplexed hysteretic control for single‐inductor dual‐input single‐output DC‐DC power converter

Dual input–dual output DC–DC converter for solar PV/battery/ultra‐capacitor powered electric vehicle application

Robust control for non‐minimum phase and cross‐regulation in single‐inductor dual‐output boost converter

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