Wireless Golf Cart Charging Development in Thailand

Yachiangkam, Samart; Tammawan, Wuttikai; Sriprom, Thanet; Thongpron, Jutturit; Kamnarn, Uthen; Oranpiroj, Kosol; Somsak, Teerasak; Yotkaew, Ekaphot; Namin, Anon

doi:10.1109/ieecon53204.2022.9741670

Cited by 2 publications

(14 citation statements)

References 13 publications

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“…Energies 2023, 16, x FOR PEER REVIEW 3 of 26 [23,[25][26][27][28] and the phase-shift control inverter [29][30][31][32][33][34]. The SS control inductive wireless power transfer system was studied using the phase-shift full bridge rectifier [35] and secondary resonator [36,37].…”

Section: Varied Frequency Controlled Inductive Wireless Cc-cv Chargin...mentioning

confidence: 99%

“…IPT is used for LED TVs [9], e-kettles [10], e-scooters [11], e-bikes and motorcycles [12,13], solar tricycles [14], EV chargers and stations [15,16] and wireless power transfer units [17][18][19][20]. A few IPTs have been applied in wireless golf cart charging [21][22][23]. Wireless power transfer is a luxury technology for the future intelligent society.…”

Section: Introductionmentioning

confidence: 99%

“…Small and light battery micro-EV cars such as the L7e car, e-Tuk-Tuk and e-golf cart have been encouraged for development and conversion from fossil fuel engines to EVs in Thailand by the Electric Vehicle Association of Thailand (EVAT) and the Energy Ministry of Thailand [23,24]. Consequently, Thailand's industrial EV sectors must learn and develop EV technologies.…”

Section: Introductionmentioning

confidence: 99%

“…Then, the golf cart battery charger achieved a 4% efficiency with 21 V 9 A at the resistant load [22]. The wireless golf cart charger was developed in Thailand, reaching 70 to 80% efficiency with 38-40 V 10 A charging for a golf cart's 36 V lead-acid battery set [23]. The wireless golf cart charging systems were developed only for resistive load testing and the lead-acid battery sets.…”

Section: Introductionmentioning

confidence: 99%

“…The CC-CV control system for inductive wireless EV charging can be divided into three forms: (a) primary-side (PS) controller, (b) SS controller and (c) dual-side controllers. Indeed, the PS converters used the PS control inductive wireless power transfer systems [23,[25][26][27][28] and the phase-shift control inverter [29][30][31][32][33][34]. The SS control inductive wireless power transfer system was studied using the phase-shift full bridge rectifier [35] and secondary resonator [36,37].…”

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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