Effect of the DC-Link Capacitor Size on the Wireless Inductive-Coupled Opportunity-Charging of a Drone Battery
Wireless inductive-coupled power transfer and opportunity battery charging are very appealing techniques in drone applications. Weight and size are very critical constraints in drones, so the battery and the on-board electronics must be as light and small as possible. The on-board components involve...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-05-01
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| Series: | Energies |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1996-1073/13/10/2621 |
| _version_ | 1827716463328231424 |
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| author | Andrea Carloni Federico Baronti Roberto Di Rienzo Roberto Roncella Roberto Saletti |
| author_facet | Andrea Carloni Federico Baronti Roberto Di Rienzo Roberto Roncella Roberto Saletti |
| author_sort | Andrea Carloni |
| collection | DOAJ |
| description | Wireless inductive-coupled power transfer and opportunity battery charging are very appealing techniques in drone applications. Weight and size are very critical constraints in drones, so the battery and the on-board electronics must be as light and small as possible. The on-board components involved in the resonant inductive-coupled wireless power transfer usually consist of the secondary coil, the compensation capacitor, the bridge rectifier, the <i>LC</i>-filter and the battery. This paper suggests a sizing of the <i>LC</i>-filter capacitor that improves the charging power of the battery. In addition, further on-board space and size is saved by using the stray inductance of the battery as filtering inductor. LTSpice simulations and experimental tests carried out on the prototype of a wireless power transfer circuit shows the dependency of the power delivered to the battery on the filter capacitor size. Finally, it is found that the power transfer to the battery is maximized by choosing the capacitor value that sets the <i>LC</i>-filter resonant frequency close to the double of the excitation frequency of the wireless charging. The drawback is a large current and voltage ripple in the battery. |
| first_indexed | 2024-03-10T19:42:07Z |
| format | Article |
| id | doaj.art-a9ed0059768b45bcb68aaf4a36adf9f7 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-10T19:42:07Z |
| publishDate | 2020-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-a9ed0059768b45bcb68aaf4a36adf9f72023-11-20T01:13:20ZengMDPI AGEnergies1996-10732020-05-011310262110.3390/en13102621Effect of the DC-Link Capacitor Size on the Wireless Inductive-Coupled Opportunity-Charging of a Drone BatteryAndrea Carloni0Federico Baronti1Roberto Di Rienzo2Roberto Roncella3Roberto Saletti4Dipartimento Ingegneria dell’Informazione, University of Pisa, Via Caruso 16, 56122 Pisa, ItalyDipartimento Ingegneria dell’Informazione, University of Pisa, Via Caruso 16, 56122 Pisa, ItalyDipartimento Ingegneria dell’Informazione, University of Pisa, Via Caruso 16, 56122 Pisa, ItalyDipartimento Ingegneria dell’Informazione, University of Pisa, Via Caruso 16, 56122 Pisa, ItalyDipartimento Ingegneria dell’Informazione, University of Pisa, Via Caruso 16, 56122 Pisa, ItalyWireless inductive-coupled power transfer and opportunity battery charging are very appealing techniques in drone applications. Weight and size are very critical constraints in drones, so the battery and the on-board electronics must be as light and small as possible. The on-board components involved in the resonant inductive-coupled wireless power transfer usually consist of the secondary coil, the compensation capacitor, the bridge rectifier, the <i>LC</i>-filter and the battery. This paper suggests a sizing of the <i>LC</i>-filter capacitor that improves the charging power of the battery. In addition, further on-board space and size is saved by using the stray inductance of the battery as filtering inductor. LTSpice simulations and experimental tests carried out on the prototype of a wireless power transfer circuit shows the dependency of the power delivered to the battery on the filter capacitor size. Finally, it is found that the power transfer to the battery is maximized by choosing the capacitor value that sets the <i>LC</i>-filter resonant frequency close to the double of the excitation frequency of the wireless charging. The drawback is a large current and voltage ripple in the battery.https://www.mdpi.com/1996-1073/13/10/2621opportunity chargingwireless power transferseries-series architectureinductive-coupled resonant circuitDC-link capacitor sizingdrone battery charging |
| spellingShingle | Andrea Carloni Federico Baronti Roberto Di Rienzo Roberto Roncella Roberto Saletti Effect of the DC-Link Capacitor Size on the Wireless Inductive-Coupled Opportunity-Charging of a Drone Battery Energies opportunity charging wireless power transfer series-series architecture inductive-coupled resonant circuit DC-link capacitor sizing drone battery charging |
| title | Effect of the DC-Link Capacitor Size on the Wireless Inductive-Coupled Opportunity-Charging of a Drone Battery |
| title_full | Effect of the DC-Link Capacitor Size on the Wireless Inductive-Coupled Opportunity-Charging of a Drone Battery |
| title_fullStr | Effect of the DC-Link Capacitor Size on the Wireless Inductive-Coupled Opportunity-Charging of a Drone Battery |
| title_full_unstemmed | Effect of the DC-Link Capacitor Size on the Wireless Inductive-Coupled Opportunity-Charging of a Drone Battery |
| title_short | Effect of the DC-Link Capacitor Size on the Wireless Inductive-Coupled Opportunity-Charging of a Drone Battery |
| title_sort | effect of the dc link capacitor size on the wireless inductive coupled opportunity charging of a drone battery |
| topic | opportunity charging wireless power transfer series-series architecture inductive-coupled resonant circuit DC-link capacitor sizing drone battery charging |
| url | https://www.mdpi.com/1996-1073/13/10/2621 |
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