Single Inductor-Multiple Output DPWM DC-DC Boost Converter with a High Efficiency and Small Area

Park, Young Jun; Khan, Zaffar Hayat Nawaz; Oh, Seong Jin; Jang, Byeong Gi; Ahmad, Nabeel; Khan, Danial; Abbasizadeh, Hamed; Shah, Syed Adil Ali; Pu, Young Gun; Hwang, Keum Cheol; Yang, Youngoo; Lee, Minjae; Lee, Kang Yoon

doi:10.3390/en11040725

Cited by 6 publications

(7 citation statements)

References 24 publications

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“…Single-inductor dual-input single-output (SI-DISO) converters have been used for different applications such as battery energy storage, photovoltaic solar energy systems (RES), and electric vehicles (EVs). [1][2][3][4][5][6][7] The SI-DISO converter is a cost-effective option to reduce the size and cost of the converter by using a single inductor as compared to multiple-power module and multiple-inductor solutions for managing power from different energy sources. However, due to the sharing of the same inductor, the associated converter topologies usually suffer from crossregulation and power sharing problems.…”

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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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: 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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“…In [19], a linear small-signal AC analysis is done for dual series connected outputs, which makes the system complex in designing the controllers. In paper [20], SIDO (single-input dual-output) boost converter with digital PWM (pulse width modulation) produces high efficiency but the system operates only for low power applications. In paper [21], the author proposes a deadbeat control method for a single-inductor MIMO system.…”

Section: Introductionmentioning

confidence: 99%

Minimization of Cross-Regulation in PV and Battery Connected Multi-Input Multi-Output DC to DC Converter

et al. 2020

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This paper proposes a digital model predictive controller (DMPC) for a multi-input multi-output (MIMO) DC-DC converter interfaced with renewable energy resources in a hybrid system. Such MIMO systems generally suffer from cross-regulation, which seriously impacts the stability and speed of response of the system. To solve the contemporary issues in a MIMO system, a controller is required to attenuate the cross-regulation. Therefore, this paper proposes a controller, which increases speed of response and maintains stable output by regulating the load voltage independently. The inductor current and the capacitor voltage of the proposed converter are considered as the controlling parameters. With the aid of Forward Euler’s procedure, the future values are computed for the instantaneous values of controlling parameters. Cost function defines the control action by the predicted values that describe the system performance and establish optimal condition at which the output of the system is required. This allows proper switching of the system, thereby helping to regulate the output voltages. Thus, for any variation in load, the DMPC ensures steady switching operation and minimization of cross-regulation. To prove the efficacy of proposed DMPC controller, simulations followed by the experimental results are executed on a hybrid system consisting of dual-input dual-output (DIDO) positive Super-Lift Luo converter (PSLLC) interfaced with photovoltaic renewable energy resource. The results thus obtained are compared with the conventional PID (proportional integrative derivative) controller for validation and prove that the DMPC controller is able to control the cross-regulation effectively.

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“…To reduce ripples and cross regulation, the zero current switching lagging leg is added which makes the circuit more complex [3]. In reference [4], the Single Inductor Dual Output (SIDO) boost converter with discrete pulse width modulation is proposed which occupies lesser area and operates at higher efficiency only when the system works for low power applications. In reference [5], to increase the voltage gain, two half bridge converters are formed in series manner with clamp circuit such that the soft switching is obtained with reduced stress on switches.…”

Section: Introductionmentioning

confidence: 99%

Cross Regulation Reduced Optimal Multivariable Controller Design for Single Inductor DC-DC Converters

2019

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Single Inductor (SI) converters with the advantage of using one inductor for any number of inputs/outputs find wide applications in portable electronic gadgets and electrical vehicles. SI converters can be used in Single Input Multiple Output (SIMO) and Multiple Input Multiple Output (MIMO) configurations but they need controllers to achieve good transient and steady state responses, to improve the stability against load and line disturbances and to reduce cross regulation. Cross regulation is the change in an output voltage due to change in the load current at another output and it is an added constraint in SI converters. In this paper, Single Input Dual Output (SIDO) and Dual Input Dual Output (DIDO) converters with applications capable of handling high load current working in Continuous Conduction Mode (CCM) of operation are taken under study. Conventional multivariable PID and optimal Linear Quadratic Regulator (LQR) controllers are developed and their performances are compared for the above configurations to meet the desired objectives. Generalized mathematical models for SIMO and MIMO are developed and a Genetic Algorithm (GA) is used to find the parameters of a multivariable PID controller and the weighting matrices of optimal LQR where the objective function includes cross regulation as a constraint. The simulated responses reveal that LQR controller performs well for both the systems over multivariable PID controller and they are validated by hardware prototype model with the help of DT9834® Data Acquisition Module (DAQ). The methodologies used here generate a fresh dimension for the case of such converters in practical applications.

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Single Inductor-Multiple Output DPWM DC-DC Boost Converter with a High Efficiency and Small Area

Cited by 6 publications

References 24 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

Minimization of Cross-Regulation in PV and Battery Connected Multi-Input Multi-Output DC to DC Converter

Cross Regulation Reduced Optimal Multivariable Controller Design for Single Inductor DC-DC Converters

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