µçÁ¦Í϶¯×Ô¶¯¿ØÖÆϵͳÔ˶¯¿ØÖÆϵͳ(ÈîÒã³Â²®Ê±)¿Îºó²Î¿¼´ð°¸(½ö¹©²Î¿¼)

Ϊ¡°0¡±Ê±£¬¶¨×Ó´ÅÁ´Ê¸Á¿Í£ÔÚÔ­µØ£¬×ª²îƵÂÊΪ¸º£¬µçÁ÷ת¾Ø·ÖÁ¿ºÍµç´Åת¾Ø¼õС¡£ ת¾ØÂö¶¯µÄÔ­Òò£ºÓÉÓÚ²ÉÓÃ˫λʽ¿ØÖÆ£¬Êµ¼Êת¾Ø±ØÈ»ÔÚÉÏÏÂÏÞÄÚÂö¶¯£»

ÒÖÖÆת¾ØÂö¶¯µÄ·½·¨£º¶Ô´ÅÁ´Æ«²îºÍת¾ØÆ«²îʵÐÐϸ»¯£¬Ê¹´ÅÁ´¹ì¼£½Ó½üÔ²ÐΣ¬¼õÉÙת¾ØÂö¶¯¡£ 6-11

´øÓÐÖÍ»·µÄ˫λʽ¿ØÖÆÆ÷ÓÅȱµã£º×ª¾ØºÍ´ÅÁ´µÄ¿ØÖƲÉÓÃ˫λʽ¿ØÖÆÆ÷£¬²¢ÔÚPWMÄæ±äÆ÷ÖÐÖ±½ÓÓÃÕâÁ½¸ö¿ØÖÆÐźŲúÉúÊä³öµçѹ£¬Ê¡È¥ÁËÐýת±ä»»ºÍµçÁ÷¿ØÖÆ£¬¼ò»¯ÁË¿ØÖÆÆ÷µÄ½á¹¹¡£

×ÊÁϸöÈËÊÕ¼¯ÕûÀí£¬Îð×öÉÌÒµÓÃ; ÓÉÓÚ²ÉÓÃ˫λʽ¿ØÖÆ£¬Êµ¼Êת¾Ø±ØÈ»ÔÚÉÏÏÂÏÞÄÚÂö¶¯¡£ 6-12

Ö±½Óת¾Ø¿ØÖÆϵͳÐè²ÉÓÃÁ½Ïྲֹ×ø±ê¼ÆË㶨×Ó´ÅÁ´£¬¶ø±Ü¿ªÐýת×ø±ê±ä»»¡£ ¶¨×Ó´ÅÁ´¼ÆËãÄ£ÐÍ£º

?s???(us??Rsis?)dt?s???(us??Rsis?)dt£¬ÕâÊÇÒ»¸öµçѹģÐÍ£¬ÊʺÏÓÚÒÔÖиßËÙÔËÐеÄ

ϵͳ£¬ÔÚµÍËÙʱµÄÎó²î½Ï´ó£¬ÉõÖÁÎÞ·¨Ó¦ÓᣱØҪʱ£¬Ö»ºÃÔÚµÍËÙʱÇл»µ½µçÁ÷Ä£ÐÍ£¬µ«ÕâʱÉÏÊöÄÜÌá¸ß³°ôÐÔµÄÓŵã¾Í²»µÃ²»¶ªÆúÁË¡£×ÊÁϸöÈËÊÕ¼¯ÕûÀí£¬Îð×öÉÌÒµÓÃ; ת¾Ø¼ÆËãÄ£ÐÍ£ºT?np(is??s??is??s?)

ÓÉÓÚ´ÅÁ´¼ÆËã²ÉÓÃÁË´ø»ý·Ö»·½ÚµÄµçѹģÐÍ£¬»ý·Ö³õÖµ¡¢ÀÛ»ýÎó²îºÍ¶¨×Óµç×èµÄ±ä»¯¶¼»áÓ°Ïì´ÅÁ´¼ÆËãµÄ׼ȷ¶È¡£ 6-13

ʸÁ¿¿ØÖÆϵͳµÄ¿ØÖÆ·½·¨£º ת×Ó´ÅÁ´¿ÉÒÔ±Õ»·¿ØÖÆÒ²¿ÉÒÔ¿ª»·¿ØÖÆ£¬×ª¾ØÁ¬Ðø¿ØÖÆ£¬µçÁ÷±Õ»·¿ØÖÆ¡£

Ö±½Óת¾Ø¿ØÖÆϵͳµÄ¿ØÖÆ·½·¨£º¶¨×Ó´ÅÁ´±Õ»·¿ØÖÆ£¬×ª¾Ø˫λʽ¿ØÖÆ£¬µçÁ÷ÎÞ±Õ»·¿ØÖÆ¡£

Ï°Ìâ

6-1

iA?Imcos(wt)2?) 32?iC?Imcos(wt?)3iB?Imcos(wt?C3/21?1?2?2??3?30??21?2?? 3??2???17 / 24

???i?????????i?????3212?0???2???iA??? ??iB??33iA?Icos(wt)22m112?i??iA?2iB?Imcos(wt)?2Imcos(wt?)32212?2??Imcos(wt)?2Im[(cos(wt)cos()?sin(wt)sin()]

332i????12Imcos(wt)?12Im(cos(wt)?3sin(wt)23sin(wt)?23?Imcos(wt?)22Á½ÏàµçÁ÷¿Õ¼ä»¥²î90¡ã£¬ÈýÏàµçÁ÷¿Õ¼ä»¥²î120¡ãµç½Ç¶È¡£ Á½ÏàµçÁ÷·ùÖµÊÇÈýÏàµçÁ÷µÄ

6-2

3±¶¡£ 2?id??cos?sin???i?????????

??sin?cos????iq????i???id?cos?i??sin?i???3Icos(wt??)2m3Imcos(wt)cos??23Imsin(wt)sin?2iq??sin?i??cos?i????3Isin(wt??)2m3Icos(wt)sin??2m3Isin(wt)cos?2m

µ±?1=?ʱ£¬?=?1t??t??0,Ôòid?3Imcos(wt??)?23Imcos?0 2iq?33Imsin(wt??)??Imsin?022is?id2?iq2?3I 2m18 / 24

6-3

°´×ª×Ó´ÅÁ´¶¨Ïòͬ²½Ðýת×ø±êϵÖÐ״̬·½³ÌΪ£º

2npd?npLm?ist?r?TLdtJLrJLd?r1???r?mismdtTrTrdismLmRL?RrLusm??r?i??i?sm1stdt?LsLrTr?LsL2?Lsr2distLmRsL2ustr?RrLm????r?i??i?st1smdt?LsLr?LsL2?Lsr2sr2m

×ø±êϵÐýת½ÇËٶȣº?1???Lmist Tr?r¼Ù¶¨µçÁ÷±Õ»·¿ØÖÆÐÔÄÜ×ã¹»ºÃ£¬µçÁ÷±Õ»·¿ØÖƵĵÈЧ´«µÝº¯ÊýΪ¹ßÐÔ»·½Ú£º

Îȶ¨ÐÔ£º

ת×Ó´ÅÁ´»·½ÚΪÎȶ¨µÄ¹ßÐÔ»·½Ú£¬¿ÉÒÔ²ÉÓñջ·¿ØÖÆ£¬Ò²¿ÉÒÔ²ÉÓÿª»·¿ØÖÆ·½Ê½£»¶øתËÙͨµÀ´æÔÚ»ý·Ö»·½Ú£¬±ØÐë¼ÓתËÙÍ⻷ʹ֮Îȶ¨¡£×ÊÁϸöÈËÊÕ¼¯ÕûÀí£¬Îð×öÉÌÒµÓÃ; 6-4

sN?n1?nN1500?14001?? n115001519 / 24

?sN?sN?1?sN2?fN?100?rad/s 15ism?isq?3Icos(wt??)2m3Isin(wt??)2m

22is?ism?ist?3Im?3?6.9?11.95A 2Ld?r1???r?mismdtTrTrL?1???mistTr?r

Ldyr1=-yr+mismdtTrTrws=w1-w=LmistTrYr

Tr?Lr0.2898??0.109 Rr2.658L20.28382m??1??1??0.7317

LsLr0.294?0.2898

6-5

ASRµ÷½ÚÆ÷£º

WASR?Kn(?ns?1)

?nsnpKnnp2Lm?r(?ns?1)Kn(?ns?1)Lm1W???np??r?? 2?nsTis?1LrJsJ?nLrs(Tis?1)Knnp2Lm?rK?

J?nLrȡh=5,Ti?0.001s?n?hTi?0.005sK?h?1?1200002h2Ti2

20 / 24

ÁªÏµ¿Í·þ£º779662525#qq.com(#Ì滻Ϊ@)