More electric aircraft challenges: A study on 270 V/90 V interleaved bidirectional DC–DC converter

Tahir, Mustafa; Khan, Shoaib; Khan, Tahir Mehmood; Waseem, Muhammad; Khan, Danish; Annuk, Andres

doi:10.1016/j.egyr.2022.06.084

Cited by 10 publications

(8 citation statements)

References 8 publications

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“…(3) While the termination criterion is not satisfed do (4) For i � 1 to the number of particles do (5) Calculate the ftness function; (6) Update the personal and global best of each particle; (7) Update the velocity of the particle; (8) Update the position of the particle; (9) End for (10) End while (11) Return the position of the best particle; ALGORITHM 2: Pseudocode of the PSO algorithm [26]. impedance data, were obtained from various manufacturers' datasheets for practical loss and efciency calculations.…”

Section: Resultsmentioning

confidence: 99%

“…Bidirectional DC-DC converters (BDCs) are used in a wide range of applications that require bidirectional power transmissions, such as electric vehicles (EVs), renewable energy systems, industrial systems, DC power distribution systems, aerospace power supplies, more electric aircraft (MEA) power supplies, uninterruptible power supplies (UPS), and fuel cell and battery energy storage systems (BESS) [1][2][3][4][5][6][7][8]. Tese types of high-power high gain BDCs are capable of achieving both DC voltage variation and electrical isolation.…”

Section: Introductionmentioning

confidence: 99%

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An Improved Topology of Isolated Bidirectional Resonant DC-DC Converter Based on Wide Bandgap Transistors for Electric Vehicle Onboard Chargers

Shahed

Rashid

2023

International Transactions on Electrical Energy Systems

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This article proposes an improved topology for an isolated bidirectional resonant DC-DC converter for electric vehicle (EV) onboard chargers. As opposed to the conventional capacitor-inductor-inductor-inductor-capacitor (CLLLC) resonant converter, the proposed converter’s resonant circuit is composed of a capacitor-inductor-inductor-inductor (CLLL) structure, whose inductances, except the capacitor, can be fully integrated with the leakage and mutual inductances of the high-frequency transformer (HF). Therefore, this offers a smaller size, lower costs, minimal power loss, and eventually higher efficiency. Again, the proposed converter design is based on wide bandgap (WBG) transistor switches that operate at MHz-level switching frequency to achieve high power density, high efficiency, and high compactness. A discrete-time proportional integral derivative (PID) controller has been designed using the phase-shifted pulse width modulation (PSPWM) technique to assure closed-loop control of the proposed CLLL converter. The PID controller parameters have been optimized using both the genetic algorithm (GA) and particle swarm optimization (PSO) algorithm and a comparative analysis has been presented between the two algorithms. To achieve fast switching with very little switching loss, the converter is simulated with several wide bandgap (WBG) switching devices. A performance comparison with conventional Si-based switching devices is also provided. A precise power loss model of the semiconductor switches has been devised from the manufacturer’s datasheet to achieve a perfect thermal design for the converter. A 5 kW CLLL converter with an input range of 400–460 V direct current (DC) and an output range of 530–610 V DC, and a switching frequency of 1 MHz has been designed and investigated under various loading scenarios. Gallium nitride (GaN) switching device-based designs achieved the highest levels of efficiency among the switching devices. The efficiency of this device is 97.40 percent in charging mode and 96.67 percent in discharging mode.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

An Improved Topology of Isolated Bidirectional Resonant DC-DC Converter Based on Wide Bandgap Transistors for Electric Vehicle Onboard Chargers

Shahed

Rashid

2023

International Transactions on Electrical Energy Systems

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“…Since the wings are so thin, the height difference can be ignored. Supposing that the pressure on the upper body of the aircraft is 400 ml/h, and the downward pressure is 300 ml/h [10]. Then, "Bernoull's Equation" needs to be used:…”

Section: Energy Requiredmentioning

confidence: 99%

Rational Design of Future Potential Electric Aircraft

Xi¹

2023

J. Phys.: Conf. Ser.

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With the development of science and technology, the shortage of fossil energy has become a problem that cannot be ignored. The main significance of studying electric aircraft is to reduce energy consumption and achieve green travel. The electric airplane project is very unusual. It can change the energy use of the world. If the electric airplane can be designed, it will be used in other fields, such as aviation. The advantages of electric aircraft, such as low cost, high efficiency, and sustainability, can reduce the world’s oil energy consumption. In addition, it is believed that many people have built electric vehicles. The noise of electric vehicles will be quieter than that of fossil fuel aircraft. This green energy can make the world develop and progress faster. Furthermore, the low price, energy conservation, environmental protection, and low cost have huge commercial potential. The paper organization mainly consists of the new battery, electric motor vs. jet, thermal energy, and required energy.

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“…The main advantage of an interlaced DC-DC converter is its ability to reduce energy losses compared to conventional DC-DC converters. By using the interconnection of the two conversion stages, the energy stored in the inductors and capacitors can be shared, thus allowing better performance in terms of energy efficiency [8] [9].…”

Section: Introductionmentioning

confidence: 99%

A Comparison Between the Quality of Two Level and Three Levels Bidirectional Buck-Boost Converter Using the Neural Network Controller

Gaied,

Flah,

Kraiem

et al. 2024

IEEE Access

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A comparison between two-phase and three-phase interlaced DC converter with parallel MOSFET is presented. PWM is evaluated using a two-way DC-DC converter to charge and discharge a battery. The results show an excellent DC voltage gain without an extremely high cycle load. The interlaced DC-DC converters with MOSFETs in parallel in two and three phases offer distinct advantages and limitations. The two-phase converter has a simpler design and a potentially lower cost due to the reduced number of components. However, it can present challenges in terms of precise voltage regulation and current balancing, due to the limited number of switching phases. On the other hand, the three-phase converter offers more precise voltage regulation and improved current balance thanks to its higher number of phases. While this results in increased design complexity and potentially higher cost, it allows for a more uniform distribution of current load among MOSFETs. The choice between the two will depend on the specific requirements of the application, acceptable trade-offs in terms of complexity, cost and performance, as well as the need for accurate voltage regulation and optimal current balancing.INDEX TERMS : battery storage, buck-boost DC-DC converter, interleaved bidirectional DC-DC converter, parallel-connected MOSFET, SOC.

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More electric aircraft challenges: A study on 270 V/90 V interleaved bidirectional DC–DC converter

Cited by 10 publications

References 8 publications

An Improved Topology of Isolated Bidirectional Resonant DC-DC Converter Based on Wide Bandgap Transistors for Electric Vehicle Onboard Chargers

An Improved Topology of Isolated Bidirectional Resonant DC-DC Converter Based on Wide Bandgap Transistors for Electric Vehicle Onboard Chargers

Rational Design of Future Potential Electric Aircraft

A Comparison Between the Quality of Two Level and Three Levels Bidirectional Buck-Boost Converter Using the Neural Network Controller

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