A modified hybrid multi-level converter for high-power high-frequency IPT systems

Rahnamaee, Hamid Reza; Madawala, Udaya K.; Thrimawithana, Duleepa J.

doi:10.1109/peac.2014.7037929

Cited by 13 publications

(7 citation statements)

References 21 publications

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“…In addition, different charging objects have different charging power level requirements in CC/CV mode [15,16]. For example, the charging power level applied to a bus and a car by the IPT system must be different.…”

Section: Introductionmentioning

confidence: 99%

A Three-Bridge IPT System for Different Power Levels Conversion under CC/CV Transmission Mode

Luo

Shou

et al. 2019

Electronics

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This paper proposes an inductive power transfer (IPT) system with three-bridge switching compensation topology. With the proposed IPT topology, the equivalent circuit and the resonant condition are analyzed to achieve the load-independent constant current (CC) and load-independent constant voltage (CV) outputs. On this basis, multiple power levels can be achieved under CC/CV conditions by bridge arm switching, which makes it possible to complete charging tasks for multiple power level electric vehicles (EV) without switching the IPT system. A circuit simulation was built to verify the different power level switching effects of the structure. A 3.3 kW IPT system was designed to verify the proposed structure. At the rated output power, the experimental efficiency was up to 92.04% and 91.21% in CC and CV output modes, respectively.

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Section: Introductionmentioning

confidence: 99%

A Three-Bridge IPT System for Different Power Levels Conversion under CC/CV Transmission Mode

Luo

Shou

et al. 2019

Electronics

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“…A fourlevel Marx inverter has been employed to excite the primary resonant tank as shown in Figure 2.24. Later, in 2014, several advanced cascaded multilevel converters with reduced number of power switches for BIPT systems have been developed as shown in Figure 2.25 [42,44]. The presented converters have been compared with the conventional converters in relation to the number of power switches, cost, output voltage and current harmonic distortions, input power factor, power losses and system efficiency to demonstrate the benefits of multilevel converter generations in IPT systems.…”

Section: Multilevel Converters Ipt Systemsmentioning

confidence: 99%

“…Assume With the same number of switching devices, the number of output voltage steps can be even higher than that in the MC-MLC topology if input DC voltage sources are asymmetrical [49]. Table 5.7 shows the comparison of the MC-MLC with the CC-MLC in [45,46] and the MH-MLC presented in [42] for BIPT systems. In this comparison table, it is assumed that the CC-MLC and the MH-MLC in [42] comprise n modules and the MC-MLC comprises n basic units and only one module is employed (m = 1).…”

Section: Case Studymentioning

confidence: 99%

“…In addition, compared to the CC-MLC in [45,46] and MH-MLC in [42], the MC-MLC has the advantage in term of lower conduction losses of power switches since the number of power switches of the MC-MLC conducting the current in a whole cycle is less than that of the others. ** k is the number of active DC power supplies in the module.…”

Section: Case Studymentioning

confidence: 99%

“…Multilevel converters have been proposed for IPT systems in [39] with "Marx" multilevel inverter, in [45] with the conventional cascaded multilevel converter, and with an effort to reduce number of power switches, a modified hybrid multilevel converter (MH-MLC), which was first introduced in [47], has been proposed for BIPT systems in [42].…”

Section: Introductionmentioning

confidence: 99%

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Efficient circuit topologies for inductive power transfer

Bac¹

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In recent years, inductive power transfer (IPT) systems have gained much attention, interest and development. IPT systems are found to be having numerous advantages over conventional wired power systems in relation to convenience, safety, isolation, operation in hostile conditions and flexibility and have proven its worth in many applications such as electric vehicle charging systems, lighting, material handling, grid-tied PV inverters, etc. A typical IPT system employs a primary power converter to generate high frequency current into one or more inductive tracks/coils in the primary side and then magnetically coupled to one or more power pickups in the secondary side. Development of efficient IPT systems has been receiving increased attention and many attempts have recently been made to improve the overall efficiency. The First of all, I would like to express my earnest gratitude to my primary supervisor, Professor D. Mahinda Vilathgamuwa for his invaluable guidance and his trust in my abilities during the past three years.

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A single-source switched-capacitor multilevel inverter for magnetic coupling wireless power transfer systems

et al. 2019

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A modified hybrid multi-level converter for high-power high-frequency IPT systems

Cited by 13 publications

References 21 publications

A Three-Bridge IPT System for Different Power Levels Conversion under CC/CV Transmission Mode

A Three-Bridge IPT System for Different Power Levels Conversion under CC/CV Transmission Mode

Efficient circuit topologies for inductive power transfer

A single-source switched-capacitor multilevel inverter for magnetic coupling wireless power transfer systems

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