Power switch failures tolerance of a photovoltaic fed three-level boost DC-DC converter

The design of an efficient DC-DC converter depends critically on its suitable control. In this paper, a new simplified output tracking control strategy for a DC-DC three-level boost converter is presented. The proposed strategy is characterized by its good tracking performances, its simplicity of design, and the stability that is ensured over the entire operating range. Thanks to (i) the adopted Takagi–Sugeno (TS) fuzzy approach; (ii) the small-signal model derived under the large domain of operating conditions, and (iii) the proportional-integral (PI) controllers’ merit. After introducing the three-level boost converter topology, the operating principles and mathematical modeling are addressed. Then, the proposed output control strategy is developed based on the PI control and the TS fuzzy approximation. A controller ensuring the capacitor voltages balancing has been also introduced in this paper. Experimental results using dSPACE (DS1104) and a laboratory prototype of three-level boost converter demonstrate the flexibility of the proposed controller, its reference tracking capability, and its ability to satisfy the performance specification over the whole operating range of the system.

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“…In the continuous conduction mode, the voltage conversion ratio of the TLBC is the same as the conventional BC and expressed as follows [21]:…”

Section: Principle Of Operationmentioning

confidence: 99%

Design and dSPACE Implementation of a Simplified Fuzzy Control of a DC-DC Three-Level Converter

Doubabi

Salhi

2021

Journal of Electrical and Computer Engineering

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“…High gain dc-dc converters are the key component of the renewable energy based applications [1,2]. Figure 1 indicates an example where the high-level converter can be used in the energy conversion phase in two phases of the system [3].…”

Section: Introductionmentioning

confidence: 99%

Modelling and Simulation of Hybrid Boosting Converter for Fuel Cell Applications

Lakshmi¹,

Ramesh²,

Sekhar³

et al. 2023

Atlantis Highlights in Intelligent Systems

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It is appropriate to focus on sustainable energy vehicles, with an intention to meet the 2050 target of an 80% reduction in greenhouse gas emissions. Fuel cells (FCs) are the only acceptable source of efficiency available in vehicles from renewable sources. Moreover, the voltage of the FC is very low to match the DC bus, which is, used to drive the motor inverter. Hence to enhance the response of the FC and to afford the desired voltage of the motor inverter, a hybrid boost converter (HBC) is suggested to give the required voltage response, as well as reduce the component stress and achieve a low output ripple. The novel topology is modeled and evaluated by using MATLAB/Simulink Software.

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“…In cascaded converters, to achieve high gain, a high value of voltage across the switch and diode is observed, and the reverse recovery time of the diode is also high. 6,7 In the multilevel boost converter, 8 high voltage gain leads to increased switching loss and additional switch voltage and current stress. Sarikhani et al 9 presented a quadratic buckboost converter topology, but the quadratic converter suffers from high power losses because it is operated at a high duty ratio.…”

Section: Introductionmentioning

confidence: 99%

An efficient switched inductor–capacitor‐based novel non‐isolated high gain SEPIC for solar energy applications

Chandra

Gaur

2022

Circuit Theory & Apps

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The solar photovoltaic (PV) sources have low voltage output and hence cannot be used directly in micro‐grid applications. Therefore, to boost the low voltage output, a novel high gain single‐ended primary inductor converter (SEPIC) is proposed in this manuscript. The proposed high gain SEPIC (HGS) has an advantage of obtaining high voltage gain at a low duty ratio and continuous input current, which makes it viable for PV applications. The proposed converter offers simple control, and the high gain is obtained without the use of any transformer or coupled inductor so the semiconductor switch will not experience a voltage overshoot during the turn‐off operation. Hence, the conduction losses of the converter switch are reduced, and the performance of the converter is enhanced. Additionally, this manuscript also investigates the effectiveness of the proposed HGS in integration with the PV array. An extensive performance evaluation of the proposed HGS is investigated and compared with different SEPIC topologies in irradiance change conditions. Experimental implementation of the proposed HGS confirms the theoretical analysis and verifies the performance. Also, the real time (RT) analysis of the proposed HGS with PV array is conducted to show the validation of high gain operation for the PV application.

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Power switch failures tolerance of a photovoltaic fed three-level boost DC-DC converter

Cited by 10 publications

References 23 publications

Design and dSPACE Implementation of a Simplified Fuzzy Control of a DC-DC Three-Level Converter

Design and dSPACE Implementation of a Simplified Fuzzy Control of a DC-DC Three-Level Converter

Modelling and Simulation of Hybrid Boosting Converter for Fuel Cell Applications

An efficient switched inductor–capacitor‐based novel non‐isolated high gain SEPIC for solar energy applications

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