鎮ㄧ従(xi脿n)鍦ㄧ殑浣嶇疆锛� 涓湅鍌冲嫊缍�(w菐ng) > 鎶€琛�(sh霉)闋婚亾 > 鎶€琛�(sh霉)鐧剧 > 閶侀浕瑙ｉ浕瀹瑰櫒鐨勫熀鏈瑕�

閶侀浕瑙ｉ浕瀹瑰櫒鐨勫熀鏈瑕�

鏅傞枔锛�2014-06-20 15:00:58渚嗘簮锛氭繁鍦虫睙娴╅浕瀛愭湁闄愬叕鍙�

灏庤獮锛�?闆诲鍣ㄧ殑鍩烘湰鍘熺悊

1. 閶侀浕瑙ｉ浕瀹瑰櫒鐨勫熀鏈瑕�

1-1. 闆诲鍣ㄧ殑鍩烘湰鍘熺悊

闆诲鍣ㄧ殑鍩烘湰鍘熺悊鍙互鐢ㄥ湒1-1渚嗘弿杩�

鐣跺湪鍏╁€嬫灏嶇殑閲戝爆闆绘サ涓婃柦鍔犻浕澹撴檪锛岄浕鑽峰皣鎿�(j霉)闆诲鐨勫ぇ灏忚鍎插瓨璧蜂締

Q=CV

Q:闆婚噺( C )

V:闆诲(V )

C:闆诲閲�(F

C:闆诲鍣ㄧ殑闆诲閲�锛屽彲浠ョ敱闆绘サ闈㈢⿳S [m2]锛屼粙璩�(zh矛)鍘氬害t [m]浠ュ強鐩稿皪浠嬮浕甯告暩(sh霉)ε渚嗚〃绀�

C[F]= ε0?ε?S/t

ε0:浠嬭唱(zh矛)鍦ㄧ湡绌虹媭鎱�(t脿i)涓嬬殑浠嬮浕甯告暩(sh霉)(=8.85x10-12 F/M)

閶佹哀鍖栬啘鐨勭浉灏嶄粙闆诲父鏁�(sh霉)鐐�7~8锛岃鎯崇嵅寰楁洿澶х殑闆诲锛屽彲浠ラ€氶亷澧炲姞琛ㄩ潰绌峉鎴栬€呮笡灏戝叾鍘氬害t渚嗙嵅寰�銆�

琛�1-1鍒楀嚭浜嗛浕瀹瑰櫒涓父鐢ㄧ殑骞剧ó鍏稿瀷鐨勪粙璩�(zh矛)鐨勭浉灏嶄粙闆诲父鏁�(sh霉)锛屽湪寰堝鎯呮硜涓�锛岄浕瀹瑰櫒鐨勫懡鍚嶉€氬父鏄牴鎿�(j霉)浠嬭唱(zh矛)鎵€浣跨敤鐨勬潗鏂欎締姹哄畾鐨�锛屼緥濡傦細閶侀浕瑙ｉ浕瀹瑰櫒銆侀壄闆诲鍣ㄧ瓑銆�

浠嬭唱(zh矛)

鐩稿皪浠嬮浕甯告暩(sh霉) 浠嬭唱(zh矛) 鐩稿皪浠嬮浕甯告暩(sh霉)

閶佹哀鍖栬啘 7 ~ 8 闄剁摲 10~120

钖勮啘妯硅剛 3.2 鑱氳嫰涔欑儻 2.5

浜戞瘝 6 ~ 8 閴哀鍖栬啘 10 ~20

闆栫劧閶侀浕瑙ｉ浕瀹瑰櫒闈炲父灏�锛屼絾瀹冨叿鏈夌浉灏嶈純澶х殑闆诲閲�锛屽洜鐐哄叾閫氶亷闆诲寲瀛歌厫铦曞悗锛岄浕妤电當鐨勮〃闈㈢⿳琚摯澶т簡锛屽苟涓斿畠鐨勪粙璩�(zh矛)姘у寲鑶滈潪甯歌杽銆�

鍦�1-2褰㈣薄鍦版弿杩颁簡閶侀浕瑙ｉ浕瀹瑰櫒鐨勫熀鏈祫鎴�銆�

1-2闆诲鍣ㄧ殑绛夋晥闆昏矾

闆诲鍣ㄧ殑绛夋晥闆昏矾鍦栧彲鐢变笅鍦�2琛ㄧず

R1锛氶浕妤靛拰寮曞嚭绔瓙鐨勯浕闃�

R2锛氶櫧妤垫哀鍖栬啘鍜岄浕瑙ｈ唱(zh矛)鐨勯浕闃�

R3锛氭悕澹炵殑闄芥サ姘у寲鑶滅殑绲曠罚闆婚樆

D1锛氬叿鏈夊柈鍚�?q奴)褖濞︾紭骞存灎O姘у寲鑶�

C1锛氶櫧妤电當鐨勫閲�

C2锛氶櫚妤电當鐨勫閲�

L 锛氶浕妤靛強寮曠窔绔瓙绛夋墍寮曡捣鐨勭瓑鏁堥浕鎰熼噺

1-3鍩烘湰鐨勯浕鎬ц兘

1-3-1 闆诲閲�

闆诲鍣ㄧ殑鐢辨脯閲忎氦娴佸閲忔檪鎵€鍛堢従(xi脿n)鐨勯樆鎶楁焙瀹�銆備氦娴侀浕瀹归噺闅ㄩ牷鐜囥€侀浕澹撲互鍙婃脯閲忔柟娉曠殑璁婂寲鑰岃畩鍖�銆傞媮闆昏В闆诲鍣ㄧ殑瀹归噺闅ㄩ牷鐜囩殑澧炲姞鑰屾笡灏�銆�

鍜岄牷鐜囦竴妯�锛屾脯閲忔檪鐨勬韩搴﹀皪闆诲鍣ㄧ殑瀹归噺鏈変竴瀹氱殑褰遍熆銆傞毃钁楁脯閲忔韩搴︾殑涓嬮檷锛岄浕瀹归噺鏈冭畩灏忋€�

鍙︿竴鏂归潰锛岀洿娴侀浕瀹归噺锛屽彲閫氶亷鏂藉姞鐩存祦闆诲鑰屾脯閲忓叾闆昏嵎寰楀埌锛屽湪甯告韩涓嬪閲忔瘮浜ゆ祦绋嶅井鐨勫ぇ涓€榛�锛屽苟涓斿叿鏈夋洿鍎�(y艒u)瓒婄殑绌�(w臎n)瀹氱壒鎬�銆�

1-3-2 Tan δ锛堟悕鑰楄姝ｅ垏锛�

鍦ㄧ瓑鏁堥浕璺腑锛屼覆鑱�(li谩n)绛夋晥闆婚樆ESR鍚屽鎶�1/ wC涔嬫瘮绋变箣鐐篢an δ锛屽叾娓噺姊濅欢鑸囬浕瀹归噺鐩稿悓銆�

tan δ =RESR/ (1/wC)= wC RESR

鍏朵腑锛歊ESR=ESR锛�120 Hz锛�

w=2πf

f=120Hz

tan δ闅ㄨ憲娓噺闋荤巼鐨勫鍔犺€岃畩澶э紝闅ㄦ脯閲忔韩搴︾殑涓嬮檷鑰屽澶�銆�

闃绘姉锛圸锛夛細

鍦ㄧ壒瀹氱殑闋荤巼涓�锛岄樆绀欎氦娴侀浕閫氶亷鐨勯浕闃诲氨鏄墍璎傜殑闃绘姉锛圸锛�銆傚畠鑸囧閲忎互鍙婇浕鎰熷瘑鍒囩浉闂�(gu膩n)锛屽苟涓旇垏绛夋晥涓茶伅(li谩n)闆婚樆ESR涔熸湁闂�(gu膩n)绯�銆傚叿楂旇〃閬斿紡濡備笅锛�

鍏朵腑锛歑c=1/ wC=1/ 2πfC

XL=wL=2πfL

婕忛浕娴侊細

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