Çѱ¹Á¤º¸Åë½ÅÇÐȸ ³í¹®Áö (Journal of the Korea Institute of Information and Communication Engineering)
Current Result Document :
ÇѱÛÁ¦¸ñ(Korean Title) |
Àڱ⠰øÁø ±â¹ÝÀÇ ¹«¼±Àü·ÂÀü¼Û ½Ã½ºÅÛ¿¡¼ ¼Û¼ö½Å °øÁø±âÀÇ ±¸Á¶ Â÷ÀÌ¿¡ µû¸¥ ´Þ¼º °¡´ÉÇÑ È¿À² ºñ±³ |
¿µ¹®Á¦¸ñ(English Title) |
Comparison of Achievable Efficiency for Different Resonator Structures in a Magnetic Resonance-based Wireless Power Transfer System |
ÀúÀÚ(Author) |
À̱â¼Û
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Kisong Lee
Haekwon Yang
In-Ho Ra
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¿ø¹®¼ö·Ïó(Citation) |
VOL 21 NO. 05 PP. 1035 ~ 1041 (2017. 05) |
Çѱ۳»¿ë (Korean Abstract) |
Àڱ⠰øÁø ±â¹ÝÀÇ ¹«¼±Àü·ÂÀü¼Û ½Ã½ºÅÛ¿¡¼, ¼Û¼ö½Å °øÁø±â°¡ °¡±î¿öÁü¿¡ µû¶ó Àü·Âºñ È¿À²ÀÌ ±Þ°ÝÈ÷ °¨¼ÒÇÏ´Â ÁÖÆļö ½ºÇø®Æà Çö»óÀº ±Ù°Å¸®¿¡¼ ¾ÈÁ¤ÀûÀÎ Àü·Â Àü¼ÛÀ» À§ÇÏ¿© ¹Ýµå½Ã ÇØ°áÇØ¾ß ÇÏ´Â ¹®Á¦ÀÌ´Ù. º» ³í¹®¿¡¼´Â µî°¡È¸·Î ¸ðµ¨À» ÀÌ¿ëÇÏ¿© ¹«¼±Àü·ÂÀü¼Û ½Ã½ºÅÛÀ» ¸ðµ¨¸µÇÏ°í, Àü·Âºñ È¿À² ¹× ÁÖÆļö ½ºÇø®ÆÃÀÌ ¹ß»ýÇÏ´Â ÇÑ°è Ä¿Çøµ °è¼ö(ksplit)¸¦ µµÃâÇÏ¿´´Ù. ¶ÇÇÑ, Advanced Design SystemÀ» ÀÌ¿ëÇÏ¿© ȸ·Î ¼öÁØÀÇ ½Ã¹Ä·¹À̼ÇÀ» ¼öÇàÇÏ¿´À¸¸ç, À̸¦ ÅëÇØ k>ksplit ÀÇ È¯°æ¿¡¼ ¼Û¼ö½Å °øÁø±âÀÇ ±¸Á¶¿¡ µû¶ó ´Þ¼º °¡´ÉÇÑ Àü·Âºñ È¿À²ÀÌ ´Ù¸§À» º¸¿´´Ù. µ¿ÀÏÇÑ ±¸Á¶ÀÇ °øÁø±âÀÇ °æ¿ì k°¡ Ä¿Áö´õ¶óµµ ³ôÀº ¼öÁØÀÇ Àü·Âºñ È¿À²À» À¯ÁöÇÏ´Â ¹Ý¸é, »óÀÌÇÑ ±¸Á¶ÀÇ °øÁø±âÀÇ °æ¿ì k°¡ Ä¿Áü¿¡ µû¶ó Àü·Âºñ È¿À²µµ °¨¼ÒÇÔÀ» È®ÀÎÇß´Ù. ±×·¯¹Ç·Î k>ksplit¸¦ ¸¸Á·ÇÏ´Â ±Ù°Å¸® ȯ°æ¿¡¼ ¾ÈÁ¤ÀûÀÎ Àü·Âºñ È¿À²À» ´Þ¼ºÇϱâ À§Çؼ´Â »óÀÌÇÑ ±¸Á¶ÀÇ °øÁø±âº¸´Ù´Â µ¿ÀÏÇÑ ±¸Á¶ÀÇ °øÁø±â¸¦ »ç¿ëÇÏ´Â °ÍÀÌ ´õ È¿À²ÀûÀÌ´Ù.
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¿µ¹®³»¿ë (English Abstract) |
In magnetic resonance-based wireless power transfer (WPT) systems, frequency splitting phenomenon, in which power transfer efficiency (PTE) decreases seriously as resonators are close to each other, is the problem that we should address for reliable power transfer in short distance. In this paper, we present WPT systems using an equivalent circuit model and analyze PTE and marginal coupling coefficient (ksplit) where the frequency splitting occurs. In addition, we perform circuit-level simulations using Advanced Design System, and show that the achievable PTE is different for the structures of resonators when k>ksplit. We confirm that higher PTE can be ensured as k increases in the case of identical resonators, while PTE is degraded as k increases in the case of non-identical resonators. Therefore, in short distance, in which k>ksplit, it is more efficient for achieving reliable PTE to use identical resonators rather than non-identical resonators.
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Å°¿öµå(Keyword) |
¹«¼± Àü·Â Àü¼Û
Àڱ⠰øÁø
Àü·Â Àü¼Û È¿À²
ÁÖÆļö ½ºÇø®ÆÃ
Wireless Power Transfer
Magnetic Resonance
Power Transfer Efficiency
Frequency Splitting
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