Dynamic Analysis and Control Approach for a High-Gain Step-Up Converter for Electrified Transportation

Shang, Fei; Wu, Haowen; Niu, Geng; Krishnamurthy, Mahesh; Isurin, Alexander

doi:10.1109/tte.2017.2743418

Cited by 20 publications

(11 citation statements)

References 20 publications

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“…The transfer function of the MIC topology is derived using (5) and (6). In general, the proportional-integral controller eliminates the output voltage steady state [10,25]. The transfer function on the system with the parameters L = 2.5 mH, C = 1200 µF, f s = 10 kHz and R load = 15 Ω given by The stability of the converter is determined with the bode plots of the transfer functions.…”

Section: Controller Designmentioning

confidence: 99%

“…Motivated by the fact that, acceptance of converter for real-time applications demand high efficiency for wide operating conditions, the efficiency and power loss calculations have been carried out for the MIC topology. The major losses of the converter include conduction losses and switching losses [28][29][30] given as P loss = P Con + P SW (10) where P loss is the total power loss, P Con is the conduction loss and P SW is the switching loss.…”

Section: Loss Analysis and Efficiencymentioning

confidence: 99%

“…In addition to the significance of reliability and loss distribution analysis as mentioned, the other important performance indices on which any converter topology needs to be validated are (i) stability, (ii) sensitivity and (iii) stress analysis. Maintaining proper stability limits allows achieving the mandatory requirements of regulated output voltage for hybrid electric vehicle and standalone applications [10]. The quantification of stability allows assessing the suitability of the implemented control strategy.…”

Section: Introductionmentioning

confidence: 99%

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Performance analysis of multiple input converter for standalone photovoltaic system

Sahu¹,

Chander²,

Ghosh³

2019

IET Power Electronics

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Multiple-input converters (MICs) are receiving significant popularity in hybridisation of energy sources especially for renewable energy integration and vehicular electrification. In the last decade, several MIC topologies have been proposed; however, application-oriented implementation and its in-depth analysis in terms of reliability, stability, sensitivity, efficiency and voltage-current stress along with fault tolerant operation has been ignored. Thus, intensive investigation in terms of different performance attributes is crucial for the selection of application-oriented MIC topology. Therefore, in this study, comprehensive investigation of an MIC for providing a clear picture of the landscape of various performances attributes has been carried out for photovoltaic application considering source dynamics in addition to source and load end intermittencies. The presented system offers a modular structure, flexible control and reliable operation with a simple and compact design. The proposed work examines the stability of the presented converter besides investigating reliability profile, and also focuses on determining the effect on load voltage with respect to input and output perturbations along with loss distribution analysis for determining the efficiency of the converter. The controller designed has been experimentally validated with the solar emulator and dSPACE 1103 real-time digital controller. Furthermore, the topology has been compared with recently published topologies qualitatively and quantitatively.

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Section: Controller Designmentioning

confidence: 99%

Section: Loss Analysis and Efficiencymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Performance analysis of multiple input converter for standalone photovoltaic system

Sahu¹,

Chander²,

Ghosh³

2019

IET Power Electronics

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“…Substituting (23) in (15) and neglecting the resulting nonlinear and DC terms without significant error, a linear small-signal model is obtained [2,9]…”

Section: Small-signal Modelmentioning

confidence: 99%

Modelling and control of dual input boost converter with voltage multiplier cell

Appikonda

Kaliaperumal

2019

IET Circuits, Devices & Systems

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A dual input DC-DC converter with dual boost and integrated voltage multiplier cell operating at duty cycles larger than 0.5 is a necessity to achieve a high voltage gain for energy systems possessing two independent renewable energy resources. Output voltage regulation during load changes and input disturbances is the requisite of an energy system, which is achieved by the implementation of a suitable control action, which further requires the dynamic model of the converter. The modelling of this higher order converter with overlapping switching signals is complicated. The small-signal transfer function model based on state-space averaging followed by small-signal linearisation is verified using MATLAB and powersim (PSIM). The output voltage to duty cycle transfer functions significantly contributes to representing the converter dynamics from which its right-half s-plane zero is analysed. Since it is a non-minimum phase system, a dual loop control strategy is adopted. Voltage regulation and active current sharing are ensured from the simulation and experimental responses of the uncompensated and compensated systems. Further, from the derived integer-order converter model a fractional controller is designed and its dynamic response is compared with the traditional controller. A 200 W prototype of the converter is developed, and the control is implemented using field-programmable gate array.

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“…Since the energy crisis and environmental pollution become global problems, renewable energy resources, such as fuel or solar cells, attract more and more attention 1‐3 . Output voltage of them is often low DC voltage, such as 20 to 50 V, while the load voltage is high DC voltage in the DC microgrid 4‐6 and the front‐end DC‐DC converters in two‐stage inverters, 7‐9 such as 380 V. Thus, DC‐DC converters should be applied in them, which have high step‐up ratio 10‐12 . In addition, output voltage of fuel or solar cells varies extensively, so the DC‐DC converters should operate in an extensive range 13‐15 …”

Section: Introductionmentioning

confidence: 99%

Boost and full‐bridge integrated converter for wide input‐voltage range application

Yao

Liu

2021

Int Trans Electr Energ Syst

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Summary The output voltage of fuel and solar cells varies extensively and is often low. Thus, high step‐up DC‐DC converters in DC microgrid should be suitable for an extensive input‐voltage range application. However, the voltage stress of rectifier diodes is high in an extensive voltage range in voltage‐source converters. In addition, the input current of the converter should be continuous to obtain a high lifetime of fuel cell and to realize maximum power point tracking (MPPT) for the PV array. Output current of the converter should be continuous to use a film capacitor, which can improve the lifetime and reliability of the converter. Thus, a boost and full‐bridge integrated converter is proposed. Switches in the boost converter are shared with the full‐bridge converter to reduce the number of switches. Since transformer secondary to primary turns ratio is reduced compared to voltage‐source converters, voltage stress of rectifier diodes is low. As there are input and output inductors in the proposed converter, input and output currents are continuous. Operating principle is elaborated. Design guidelines and example are illustrated. The loss calculation of the proposed converter is given. Finally, simulation and experimental results confirm the theoretical analysis. The proposed converter can be used in the wide input‐voltage range application.

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Dynamic Analysis and Control Approach for a High-Gain Step-Up Converter for Electrified Transportation

Cited by 20 publications

References 20 publications

Performance analysis of multiple input converter for standalone photovoltaic system

Performance analysis of multiple input converter for standalone photovoltaic system

Modelling and control of dual input boost converter with voltage multiplier cell

Boost and full‐bridge integrated converter for wide input‐voltage range application

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