Variable Frequency Control for Constant Current Constant Voltage Inductive Wireless EV Charging System

Sriprom, Thanet; Namin, Anon; Tammawari, Wuttikai; Yachiangkam, Samart; Janjommanit, Suchart; Kamnarn, Uthen; Thongpron, Jutturit; Karnjanapiboon, Chanyut; Thounthong, Phatiphat; Takorabet, Noureddine

doi:10.23919/ipec-himeji2022-ecce53331.2022.9806831

Cited by 5 publications

(14 citation statements)

References 31 publications

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“…The IPT coils' root mean square output voltage (V2) and current (I2) were evaluated, as shown in Equations ( 1)-(4). Equations ( 1) and (2) show the voltage and current, which are functions of the IPT frequency (ω) and can be controlled by the primary-side inverter. The preliminary test charging current and voltage characteristics of the sample battery are shown in Figure 3a, where the 9 A charging current for the CC and 82 V charging voltage for the CV charging modes are presented.…”

Section: Inductive Wireless Power Transfer (Ipt)mentioning

confidence: 99%

“…The IPT coils' root mean square output voltage (V2) and current (I2) were evaluated, as shown in Equations ( 1)-(4). Equations ( 1) and (2) show the voltage and current, which are functions of the IPT frequency (ω) and can be controlled by the primary-side inverter. The stepping-resistant load Li-ion battery simulator was designed and constructed to test the charging operation of the power electronics' response behaviors and performances.…”

Section: Inductive Wireless Power Transfer (Ipt)mentioning

confidence: 99%

“…The global EV market has risen enormously in the last 10 years, from 120,000 cars in 2012 to over 16.5 million in 2021, and has tripled over the last three years during the COVID-19 pandemic. The success of the global EV market has been driven by sustainable clean energy policy support from governments, the inclusion of incentives and subsidies in financial and economic acts and the public perception of EVs as being zero-waste [2,3].…”

Section: Introductionmentioning

confidence: 99%

“…Wireless EV charging is a luxury operation for modern-lifestyle EVs that do not need physical coupling of the transmitter to the receiver [1,2,6]. The automatic processes of wireless EV charging are more suitable and safe for drivers, especially for women, the elderly or people with disabilities.…”

Section: Introductionmentioning

confidence: 99%

“…The automatic processes of wireless EV charging are more suitable and safe for drivers, especially for women, the elderly or people with disabilities. Moreover, automated wireless charging can include touching charging devices and surfaces, which may have some droplets of coronaviruses from the users [2,6]. A wireless EV charging system is an intelligent device developed for luxury customers.…”

Section: Introductionmentioning

confidence: 99%

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Varied-Frequency CC–CV Inductive Wireless Power Transfer with Efficiency-Regulated EV Charging for an Electric Golf Cart

Thongpron,

Kamnarn,

Namin

et al. 2023

Energies

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Wireless electric vehicle (EV) charging is an important operation for valuable EV options in modern life. Inductive wireless EV charging needs constant current and voltage (CC–CV) charge controllers. This paper presents 750 W variable frequency CC–CV inductive wireless charging for an e-golf cart 50 Ah 72 V Li-ion battery. Due to this system’s low power, the system’s efficiency may be weak; the secondary-side (SS) maximum efficiency-controlled (MEC) converter was validated. The golf cart’s battery characteristics were evaluated to design and experiment with inductive wireless power transfer (IPT) coils and an integration system for a 42 kHz resonant frequency. The CC–CV charged control is an infrastructural part of the H-bridge inverter at varied frequencies from 50 kHz to 56 kHz when the DC input voltage is 310 V, and in the range of 44 kHz to 46 kHz at the 155 V input. The results found the charging of 9 A CC, 82 V CV and 730 W. The 310 V input voltage system without the SS MEC converter’s efficiencies was 62% to 72% and it was improved to 65% to 81% using the SS MEC converter. Finally, the best cases were validated at the 155 V DC input voltage and the system with the SS MEC converter had 76% to 86% efficiency.

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Section: Inductive Wireless Power Transfer (Ipt)mentioning

confidence: 99%

“…The IPT coils' root mean square output voltage (V2) and current (I2) were evaluated, as shown in Equations ( 1)-(4). Equations ( 1) and (2) show the voltage and current, which are functions of the IPT frequency (ω) and can be controlled by the primary-side inverter. The stepping-resistant load Li-ion battery simulator was designed and constructed to test the charging operation of the power electronics' response behaviors and performances.…”

Section: Inductive Wireless Power Transfer (Ipt)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations