Design and analysis of voltage clamped bidirectional DC–DC converter for energy storage applications

Narasimharaju, B. L.; Reddy, Udumula Ramanjaneya; Raveendhra, Dogga

doi:10.1049/joe.2018.0127

Cited by 12 publications

(12 citation statements)

References 19 publications

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“…By using (4) and (8), the current slopes are obtained as It can be observed that current i L2 decreases and currents i L1 and i S1 increase. This mode ends and continues to mode-1 when i L2 decreases to zero, making the diode D a1 to turn-off with ZCS condition and the currents i L1 and i S1 reach to I 2 value.…”

Section: Mode-7 [T 6 -T 7 ]mentioning

confidence: 99%

“…2 In order to reduce energy consumption, an energy-efficient lighting system like the SPV-fed LED-street lighting applications are gaining wide importance. 8,9 But due to lack of soft switching feature, these converters have low efficiency. One stage is to convert SPV power suitable to charge battery storage system (BSS) while the other stage is to control the power from BSS to the load.…”

Section: Introductionmentioning

confidence: 99%

“…The coupled inductor (CI)-based BDCs are developed to provide a wider range of conversion as well as the reduction in device voltage/current stress. 8,9 But due to lack of soft switching feature, these converters have low efficiency. Generally, in the SPV and battery-powered applications, the source voltage is of intermittent and time varied in nature such that the input voltage may be higher or lower than the desired output voltage.…”

Section: Introductionmentioning

confidence: 99%

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Analysis and implementation of soft‐switched bidirectional buck‐boost DC‐DC converter for solar PV‐fed LED street lighting systems

Veeramallu

Porpandiselvi

Narasimharaju

2019

Circuit Theory & Apps

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This paper presents a single-stage solar photovoltaic (SPV) fed light-emitting diode (LED) street lighting system (LED-SLS) using a novel soft-switched buck-boost bidirectional DC-DC converter (BDC). A coupled inductor (CI) based auxiliary circuit is used in the proposed BDC to achieve soft switching, which leads to improved efficiency with reduced ripple. As SPV power is available during day time alone, a battery storage system (BSS) is used. The BSS is charged from SPV during day time through the proposed CI-BDC. The BSS powers the LED-SLS during night time through the same CI-BDC. The proposed CI-BDC provides various advantages like buck/boost operation in either direction of power flow, zero voltage switching (ZVS) soft-switching, use of single magnetic core, high efficiency, reduced ripple in output current, and simple control. Also, it provides an illumination control of the LED-SLS using pulse-width modulation (PWM) dimming. To maintain high efficiency even at light loads, the proposed CI-BDC works as conventional BDC by turning OFF the auxiliary circuit. Thus, avoiding the high conduction losses in it at light loads. The detailed working principle and design analysis are presented along with simulation results. A prototype of 40 W LED lighting system has been developed, and experimental validation is presented. KEYWORDSbidirectional, buck-boost, coupled inductor, LED driver, soft switching 1990

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Section: Mode-7 [T 6 -T 7 ]mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Analysis and implementation of soft‐switched bidirectional buck‐boost DC‐DC converter for solar PV‐fed LED street lighting systems

Veeramallu

Porpandiselvi

Narasimharaju

2019

Circuit Theory & Apps

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“…In order to amplify light intensity, multiple numbers of LEDs are stacked together in series and parallel combination as per the load requirement. The intensity of light and chromaticity straight away depend on the forward current passing through the LED; therefore, it is desirable to drive LED load with constant current [12]; [13]; [14]; [15]; [16]; [17]; [18]; [19]. The idea is to use two sources, one to supply threshold voltage directly, the other source being the full-bridge LC series resonant converter, which regulates the LED current.…”

Section: Introductionmentioning

confidence: 99%

Single Input LC Series Resonant Converter Based High Brightness Light Emitting Diode Driver with ZVS

Udumula¹

2021

Preprint

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This work proposes a high brightness light emitting diode (HB-LED) driver circuit based on a full-bridge LC series resonant converter with series DC bus for low power applications with a dimming feature. The proposed configuration consists of full-bridge LC series resonant converter with a series DC bus. The idea behind the concept is to supply the light emitting diode (LED) threshold voltage directly from the constant DC bus - and the control voltage, which is used for current regulation, is supplied through a full-bridge LC resonant converter. Since the control voltage responsible for current regulation is only processed by the full-bridge series resonant converter, the conduction loss is less even if several LED strings are connected to the same converter. The proposed HB-LED driver is characterized by low switching loss, reduced component count, high efficiency, and reduction of output electrolytic capacitor. Further, double pulse width modulation (DPWM) dimming control is designed and used to control the average output currents. The proposed high brightness light emitting diode (HB-LED) driver circuit based on a full-bridge LC series resonant converter is simulated using Orcad/PSpice software. The theoretical analysis and predictions of the proposed full-bridge series resonant converter-based HB-LED driver is in close agreement with the results obtained.

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“…In [27], a converter having phase shift of an isolated dual active configuration with a full bridge type is conferred in [27], which is suitable for battery energy storage systems. A converter based on voltage-clamped along with a coupled-inductor chosen for the system had energy storage conferred in [28], in order to obtain a wide gain by means of varying the inductor turns ratio. Various topologies of converter that are bidirectional studied to obtain a high gain as well as efficiency are reviewed in [29].…”

Section: Introductionmentioning

confidence: 99%

A Modified Topology of a High Efficiency Bidirectional Type DC–DC Converter by Synchronous Rectification

Sethuraman¹,

Santha²,

Mihet‐Popa

et al. 2020

Electronics

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A modified Topology to acquire high efficiency of a bidirectional method of DC–DC converter of non-isolated approach is proposed. The modified circuit involves four numbers of switches with their body diodes, passive elements as two inductors as well as a capacitor and the circuit arrangements double boost converters to progress the voltage gain. The input current of the proposed topology divided amongst the two dissimilar values of inductors produces greater efficiency. In the step-down mode, an apparent lessening in voltage gain and also enhanced efficiency can be realized in the recommended system by expending a synchronous rectification. The modified topology shields the technique for presentation of easy control configurations and is used for truncated output voltage with a large current of energy storage systems in the renewable applications as well as hybrid energy source electric vehicle applications. The simulation of the projected structure has been conducted through MATLAB/Simulink software and has been corroborated through a 12 V/180 V, 200 Watts experimental prototype circuit.

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Design and analysis of voltage clamped bidirectional DC–DC converter for energy storage applications

Cited by 12 publications

References 19 publications

Analysis and implementation of soft‐switched bidirectional buck‐boost DC‐DC converter for solar PV‐fed LED street lighting systems

Analysis and implementation of soft‐switched bidirectional buck‐boost DC‐DC converter for solar PV‐fed LED street lighting systems

Single Input LC Series Resonant Converter Based High Brightness Light Emitting Diode Driver with ZVS

A Modified Topology of a High Efficiency Bidirectional Type DC–DC Converter by Synchronous Rectification

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