Study on LCC-C Wireless Power Transfer

Chou, Cheng-Yen; Tampubolon, Marojahan; Lin, Jing‐Yuan; Hsieh, Yao‐Ching; Chiu, Huang‐Jen

doi:10.1109/wpt.2017.7953811

Cited by 12 publications

(6 citation statements)

References 7 publications

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“…On the other hand, according to the paragraph 2 and (24) ÷ (25), the regulated frequency is always higher than the main resonant frequency.…”

Section: Experimental Measurementmentioning

confidence: 96%

“…Based on equations that are presented above, it is obvious that the switching frequency has direct influence on u1-u2 phase shift Equation (25). Also, the u1-u2 phase-shift angle equals to when the frequency fsw01 is applied.…”

Section: Tracking Algorithm Implementationmentioning

confidence: 98%

“…   (25) According to Equation (25), the u1−u2 phase-shift angle can be controlled by the primary switching frequency setting. Hence, the PI phase-shift controller is implemented, as in Equation (26).…”

Section: Tracking Algorithm Implementationmentioning

confidence: 99%

See 2 more Smart Citations

High Efficiency and Power Tracking Method for Wireless Charging System Based on Phase-Shift Control

et al. 2018

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The paper presents optimal operating point tracking algorithm for wireless charging system using identical coupling coils providing us to meet simultaneously high efficiency and high transmitted power under varied load and detuning conditions. The proposed method is suitable either for purely resistive load or battery load and it is based on phase-shift control between the primary and the secondary voltage. The paper also gives an intuitive mathematical description of the key control idea and demonstrates its operational abilities. The proposed algorithm is finally implemented into digital signal processor (DSP) and tested on 4 kW laboratory prototype of shielded wireless power transfer system.

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“…On the other hand, according to the paragraph 2 and (24) ÷ (25), the regulated frequency is always higher than the main resonant frequency.…”

Section: Experimental Measurementmentioning

confidence: 96%

Section: Tracking Algorithm Implementationmentioning

confidence: 98%

See 1 more Smart Citation

High Efficiency and Power Tracking Method for Wireless Charging System Based on Phase-Shift Control

et al. 2018

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“…An LCC resonant topology for electric vehicle wireless chargers offered a compact system at reduced coil size with high efficiency and a soft-switching realization by tuning the secondary side capacitor [6]. At variable coupling coefficient and a variable load, LCC-C topology with 0.3 coupling coefficient achieved high power transfer efficiency [7]. Both LLC and CC topologies show an enhanced power transfer efficiency at low mutual inductance, whereas the SS shows higher power transfer efficiency at high mutual inductance.…”

Section: Resonant Network Topologiesmentioning

confidence: 99%

DC-to-DC Converter Topologies for Wireless Power Transfer in Electric Vehicles

Elkhateb

Adam

Morrow

2019

IECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society

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At present, about nineteen resonant compensation networks capable of operating as pulsating voltage source are utilized for wireless power transfer (WPT), in which all resonant elements participate in resonance. The majority of networks employ full-bridge or half-bridge topologies which suffer from significant stray and leakage inductances that trap the energy and limit the power transfer; hence, reduce the efficiency. Therefore, these topologies utilize additional resonant networks with many elements and switches to exploit all magnetic field-flux density curve quadrants to eliminate switching losses. Such an approach is less desirable as it adds cost and increases complexity. Therefore, this paper proposes four DC-DC converters that utilize resonant compensation networks without additional resonant tanks, targeting Electric Vehicles wireless charging applications. The proposed converters meet the requirements of charging time, cost, range and high efficiency without a dc flux bias as in existing solutions. The technical viability of the proposed dedicated dc-dc converters for wireless power transfer applications has been validated using preliminary simulations.

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“…In this section, the analysis of the system is based on the AC analysis by means first harmonic approximation (FHA). We also have presented this analysis for a static WTP system in [19]. In this method, only the fundamental frequency is considered [10].…”

Section: Analysis and Characteristic Of Lcc-s Dwptmentioning

confidence: 99%

Dynamic Wireless Power Transfer for Logistic Robots

et al. 2018

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The prospect of using robots in warehouses or supply chain processes is increasing due to the growth of the online retail market. This logistic robot is available in the market and uses a battery as energy storage device. However, this battery is large and heavy. Therefore, it needs a long recharging time. Dynamic Wireless Power Transfer (DWPT) can be an alternative to the conventional charging system because of its safety and flexibility that enables in motion charging. DWPT reduces the battery requirement size and capacity. Hence the stored energy can be used effectively for load transportation. A compensation with an inductor and two capacitors in the transmitter side, and a series connected capacitor in the receiver side which is named LCC-S compensation type has the capability to maintain the transmitter current with a fixed frequency operation. It provides less variation of the output voltage in response to the load variation. Moreover, the compensation of the receiver side uses only a single series capacitor which is low-cost. The analysis, modeling, and design procedures are discussed in this paper as well as the hardware implementation and verification of a 1.5 kW maximum power DWPT. The experiment shows the capability of the proposed system and shows maximum efficiency can reach 91.02%.

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Study on LCC-C Wireless Power Transfer

Cited by 12 publications

References 7 publications

High Efficiency and Power Tracking Method for Wireless Charging System Based on Phase-Shift Control

High Efficiency and Power Tracking Method for Wireless Charging System Based on Phase-Shift Control

DC-to-DC Converter Topologies for Wireless Power Transfer in Electric Vehicles

Dynamic Wireless Power Transfer for Logistic Robots

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