A New Three-Level Flying-Capacitor Boost Converter with an Integrated LC2D Output Network for Fuel-Cell Vehicles: Analysis and Design

Elsayad, Nour; Moradisizkoohi, Hadi; Mohammed, Osama A.

doi:10.3390/inventions3030061

Cited by 9 publications

(7 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Table 9 summarizes several works between the years 2015-2019. In [86] a novel converter is proposed, which has certain advantages, for example, reduced voltage stress on semiconductors, a wide voltage gain and a common grounded scheme. These characteristics can be commonly found in this type of inverter, however, FC-based converters are not generally used in RES, since they require a large number of input capacitors that increase the complexity of the techniques for balancing them [87].…”

Section: Flying Capacitor Based Topologiesmentioning

confidence: 99%

Transformerless Multilevel Voltage-Source Inverter Topology Comparative Study for PV Systems

2020

View full text Add to dashboard Cite

At present, renewable energies represent 25% of the global power generation capacity. The increase in clean energy facilities is mainly due to the high levels of pollution generated by the burning of fossil fuels to satisfy the growing electricity demand. The global capacity of generating electricity from solar energy has experienced a significant increase, reaching 505 GW in 2018. Today, multilevel inverters are used in PV systems to convert direct current into alternating current. However, the use of multilevel inverters in renewable energies applications presents different challenges; for example, grid-connected systems use a transformer to avoid the presence of leakage currents. The grid-connected systems must meet at least two international standards analyzed in this work: VDE 0126-1-1 and VDE-AR-N 4105, which establish a maximum leakage current of 300 mA and harmonic distortion maximum of 5%. Previously, DC/AC converters have been studied in different industrial applications. The state-of-the-art presented in the work is due to the growing need for a greater use of clean energy and the use of inverters as an interface between these technologies and the grid. Also, the paper presents a comparative analysis of the main multilevel inverter voltage-source topologies used in transformerless PV systems. In each scheme, the advantages and disadvantages are presented, as well as the main challenges. In addition, current trends in grid-connected systems using these schemes are discussed. Finally, a comparative table based on input voltage, switching frequency, output levels, control strategy used, efficiency, and leakage current is shown.

show abstract

Section: Flying Capacitor Based Topologiesmentioning

confidence: 99%

Transformerless Multilevel Voltage-Source Inverter Topology Comparative Study for PV Systems

2020

View full text Add to dashboard Cite

show abstract

“…Non-isolated DC-DC converters for EV-related applications were discussed in References [11,[65][66][67][68][69][70][71][72][73][74]. Moradisizkoohi et al [65] proposed a half-bridge, three-port, three-level converter that could supply the critical loads using the energy stored in battery if photovoltaic (PV) generation was not available or insufficient.…”

Section: Isolated Dc-dc Convertersmentioning

confidence: 99%

“…A 70-120/600-V, 1-kW, 50-kHz prototype was built, and design specifications were verified. In Reference [66], a 200-V and 100-V-input, 1.2-kW, 100-kHz three-level boost converter was built for fuel cell (FC) vehicle application. The converter was based on a three-level flying-capacitor switching cell and integrated with an LCCD output network, which yielded higher voltage gain and lower voltage stress for the switching devices.…”

Section: Isolated Dc-dc Convertersmentioning

confidence: 99%

Review of GaN HEMT Applications in Power Converters over 500 W

2019

Electronics

103

View full text Add to dashboard Cite

Because of the global trends of energy demand increase and decarbonization, developing green energy sources and increasing energy conversion efficiency are recently two of the most urgent topics in energy fields. The requirements for power level and performance of converter systems are continuously growing for the fast development of modern technologies such as the Internet of things (IoT) and Industry 4.0. In this regard, power switching devices based on wide-bandgap (WBG) materials such as silicon carbide (SiC) and gallium nitride (GaN) are fast maturing and expected to greatly benefit power converters with complex switching schemes. In low- and medium-voltage applications, GaN-based high-electron-mobility transistors (HEMTs) are superior to conventional silicon (Si)-based devices in terms of switching frequency, power rating, thermal capability, and efficiency, which are crucial factors to enhance the performance of advanced power converters. Previously published review papers on GaN HEMT technology mainly focused on fabrication, device characteristics, and general applications. To realize the future development trend and potential of applying GaN technology in various converter designs, this paper reviews a total of 162 research papers focusing on GaN HEMT applications in mid- to high-power (over 500 W) converters. Different types of converters including direct current (DC)–DC, alternating current (AC)–DC, and DC–AC conversions with various configurations, switching frequencies, power densities, and system efficiencies are reviewed.

show abstract

“…This paper also provides the average behavior circuit model. Parameter design of flying capacitor boost converter has been discussed in [12][13][14]. A comparative analysis of different DC-DC converter topologies has been discussed in [13].…”

Section: ░ 1 Introductionmentioning

confidence: 99%

“…A comparative analysis of different DC-DC converter topologies has been discussed in [13]. Flying capacitor three level bipolar bidirectional DC-DC converter and its modulation strategy has been proposed in [12,[18][19][20]. Softswitched asymmetrical flying capacitor boost converter with synchronous rectification has been proposed in [14].…”

Section: ░ 1 Introductionmentioning

confidence: 99%

Analysis of Flying Capacitor Boost Converter

Nishanta

Lavanya

2022

IJEER

View full text Add to dashboard Cite

This paper analyzes the working principle of flying capacitor boost converter and its different variants such as synchronous flying capacitor boost converter and n-level flying capacitor boost converter. The circuit diagram and analysis of different waveforms have been provided. Voltage conversion ratio of different converters have been provided. The lower voltage conversion ratio (VCR), higher voltage stress, and low efficiency of the boost converter at higher duty cycle levels are the primary limitations of the device. Magnetic coupling components are employed to boost the VCR, but the rating is reduced as a result. The leakage current stored in the magnetic component causes unwanted voltage spikes to occur in the switches as a result of the leakage current. For the purpose of addressing these difficulties, several active and passive clamping switches are employed. Three-level boost converters are an excellent alternative to conventional boost converters, but they have a number of disadvantages that must be considered before using them.

show abstract

A New Three-Level Flying-Capacitor Boost Converter with an Integrated LC2D Output Network for Fuel-Cell Vehicles: Analysis and Design

Cited by 9 publications

References 24 publications

Transformerless Multilevel Voltage-Source Inverter Topology Comparative Study for PV Systems

Transformerless Multilevel Voltage-Source Inverter Topology Comparative Study for PV Systems

Review of GaN HEMT Applications in Power Converters over 500 W

Analysis of Flying Capacitor Boost Converter

Contact Info

Product

Resources

About