SPLL\u8fde\u7eed\u65f6\u95f4\u6a21\u578b
\u8bbe\u4e00\u4e2a\u4e09\u76f8\u7cfb\u7edf\u6b63\u5e8fn\u6b21\u8c10\u6ce2\u7535\u538b\u5982\u4e0b\u5f0f\u6240\u793a\uff1a
u_a (t)=Ucos(wt)<\/p>\n
u_b (t)=Ucos(wt – 2\u03c0\/3)<\/p>\n
u_c (t)=Ucos(wt+ 2\u03c0\/3))
\u8fd0\u7528Clark\u53d8\u6362\uff0c\u53ef\u4ee5\u5c06\u4e09\u76f8\u7535\u538b\u4ece\u4e09\u76f8\u5750\u6807\u7cfb\u8f6c\u6362\u5230\u03b1\u03b2\u4e24\u76f8\u9759\u6b62\u5750\u6807\u7cfb\uff1a
[\u25a0(V_\u03b1@V_\u03b2 )]= 2\/3 [\u25a0(\u25a0(1&-1\/2&-1\/2)@\u25a0(0&\u221a3\/2&-\u221a3\/2))][\u25a0(u_a (t)@u_b (t)@u_c (t))]=U[\u25a0(cos\u2061(wt)@sin\u2061(wt))]
\u518d\u8fd0\u7528Park\u53d8\u6362\u5c06\u4e24\u76f8\u9759\u6b62\u5750\u6807\u7cfb\u8f6c\u6362\u5230dq\u540c\u6b65\u65cb\u8f6c\u5750\u6807\u7cfb\uff1a
[\u25a0(V_d@V_q )]= [\u25a0(cos\u03b8_o&sin\u03b8_o@-sin\u03b8_o&cos\u03b8_o )][\u25a0(V_\u03b1@V_\u03b2 )]= U[\u25a0(cos\u2061(wt- \u03b8_o)@sin\u2061(wt- \u03b8_o))]
\u4ece\u4e0a\u5f0f\u53ef\u77e5\uff0c\u5f53\u76f8\u4f4d\u6ca1\u6709\u9501\u5b9a\u65f6\uff0cwt \u2260 \u03b8_o\uff0c\u56e0\u6b64d\u8f74\u5206\u91cfV_d\u548cq\u8f74\u5206\u91cfV_q\u90fd\u662f\u4ea4\u6d41\u5206\u91cf\u3002\u5f53wt \u2248 \u03b8_o\u65f6\uff0cV_d=U\uff0cV_q = 0\uff0c\u6b64\u65f6\u9501\u76f8\u73af\u8fdb\u5165\u9501\u76f8\u72b6\u6001\u3002\u9501\u76f8\u73af\u7684\u7ed3\u6784\u6846\u56fe\u5982\u56fe1-1\u6240\u793a\u3002<\/p>\n
\u00a0<\/p>\n
SPLL\u79bb\u6563\u65f6\u95f4\u6a21\u578b
\u8bbe\u7535\u7f51\u7684\u4e09\u76f8\u6b63\u5e8f\u57fa\u6ce2\u7535\u538b\u5728\u79bb\u6563\u91c7\u6837\u65f6\u523bn\u65f6\u8f6c\u5316\u5230dq\u540c\u6b65\u65cb\u8f6c\u5750\u6807\u7cfb\u7684\u7ed3\u679c\u5982\u4e0b\u5f0f\uff1a
[\u25a0(V_d (n)@V_q (n))]= U[\u25a0(cos\u2061(\u03b8(n)- \u03b8_o(n))@sin\u2061(\u03b8(n)- \u03b8_o (n)))]
\u4e0a\u5f0f\u4e2d\u03b8(n)= wTn+ \u03c6\uff0cn\u4e3a\u91c7\u6837\u65f6\u523b\uff0c w\u662f\u57fa\u6ce2\u89d2\u9891\u7387\uff0cT\u4e3a\u91c7\u6837\u5468\u671f\uff0c\u03c6\u4e3a\u521d\u76f8\u89d2\u3002\u968f\u7740\u91c7\u6837\u65f6\u523bn\u7684\u4e0d\u65ad\u589e\u52a0\uff0c\u7cfb\u7edf\u76f8\u4f4d\u6bcf\u6b21\u589e\u52a0wT\u3002
\u5982\u679c\u5b9e\u9645\u76f8\u4f4d\u03b8(n)\u4e0e\u9501\u76f8\u73af\u53cd\u9988\u7684\u76f8\u4f4d\u03b8_o (n)\u76f8\u5dee\u8f83\u5c0f\u65f6\uff0c\u5c31\u53ef\u5f97\u5230\u9501\u76f8\u73af\u7684\u7ebf\u6027\u79bb\u6563\u6a21\u578b\uff0c\u8fd9\u5c06\u95ee\u9898\u7b80\u5316\u4e3a\u5982\u4f55\u4f7f\u4e24\u4e2a\u89d2\u9891\u7387\u53ca\u76f8\u4f4d\u4e0d\u540c\u7684\u6b63\u5f26\u6ce2\u540c\u6b65\u3002
\u9501\u76f8\u73af\u7684\u6570\u5b57\u9274\u76f8\u5668\u5728n\u65f6\u523b\u7684\u8bef\u5dee\u4fe1\u53f7\u53ef\u5982\u4e0b\u5f0f\uff1a
e(n)= V_q-0=sin\u2061(\u03b8(n) – \u03b8_o (n)) \u2248 \u03b8(n) – \u03b8_o (n)
\u9501\u76f8\u73af\u79bb\u6563\u65f6\u95f4\u6a21\u578b\u5982\u56fe2-1\u548c\u56fe2-2\u6240\u793a\u3002\u9996\u5148\u5c06\u4e09\u76f8\u7535\u7f51\u7535\u538b\u8f6c\u6362\u5230\u03b1\u03b2\u4e24\u76f8\u9759\u6b62\u5750\u6807\u7cfb\uff0c\u5e76\u8ba1\u7b97\u51fa\u4e09\u76f8\u7535\u7f51\u7535\u538b\u5408\u6210\u77e2\u91cf\u5728\u03b1\u03b2\u4e24\u76f8\u9759\u6b62\u5750\u6807\u7cfb\u4e2d\u7684\u76f8\u4f4d\u89d2\u03b8\u3002<\/p>\n
\u7136\u540e\u6839\u636e\u4e09\u76f8\u7535\u7f51\u7535\u538b\u5408\u6210\u77e2\u91cf\u5728\u03b1\u03b2\u4e24\u76f8\u9759\u6b62\u5750\u6807\u7cfb\u4e2d\u7684\u76f8\u4f4d\u89d2\u03b8\u53ca\u8f6f\u4ef6\u9501\u76f8\u73af\u7684\u79bb\u6563\u65f6\u95f4\u6a21\u578b\u5f97\u5230\u7a33\u5b9a\u7684\u7535\u7f51\u57fa\u6ce2\u76f8\u4f4d\u03b8_o\u3002<\/p>\n
\u56fe1-1\u6240\u793a\u7684\u9501\u76f8\u73af\u6a21\u578b\u53ca\u56fe2-2\u6240\u793a\u7684\u9501\u76f8\u73af\u65f6\u95f4\u79bb\u6563\u6a21\u578b\u6700\u5927\u7684\u5dee\u522b\u662f\u9274\u76f8\u5668\u90e8\u5206\u7684\u5dee\u522b\u3002\u56fe1-1\u4e2d\u7684\u9274\u76f8\u5668\u662f\u901a\u8fc7\u03b8_o\u8ba1\u7b97\u51fadq\u540c\u6b65\u65cb\u8f6c\u5750\u6807\u7cfb\u7684q\u8f74\u5206\u91cf\uff0c\u7136\u540e\u4e0e0\u505a\u5dee\u3002\u56fe2-2\u4e2d\u7684\u9274\u76f8\u5668\u662f\u901a\u8fc7\u03b8_o\u4e0e\u7535\u7f51\u4e09\u76f8\u7535\u538b\u5408\u6210\u77e2\u91cf\u5728\u03b1\u03b2\u4e24\u76f8\u9759\u6b62\u5750\u6807\u7cfb\u4e2d\u7684\u76f8\u4f4d\u505a\u5dee\u3002\u4e24\u4e2a\u9501\u76f8\u73af\u7684\u6a21\u578b\u867d\u7136\u8868\u793a\u65b9\u5f0f\u6709\u5dee\u522b\uff0c\u4f46\u9274\u76f8\u5668\u7684\u672c\u8d28\u4f5c\u7528\u662f\u76f8\u540c\u7684\u3002
\u5728n\u65f6\u523bSPLL\u9501\u76f8\u73af\u8bef\u5dee\u4fe1\u53f7\u7684\u7269\u7406\u89e3\u91ca\u5982\u56fe2-3\u6240\u793a\u3002<\/p>\n
\u00a0<\/p>\n
\u9501\u76f8\u73af\u8c03\u6574\u7684\u8fc7\u7a0b\u662f\u5148\u8c03\u9891\u540e\u8c03\u76f8\uff0c\u5373\u5f53\u4e24\u8005\u7684\u9891\u7387\u4e00\u81f4\u65f6\uff0c\u518d\u8fdb\u884c\u76f8\u4f4d\u7684\u8c03\u6574\u3002\u56fe1-1\u53ca\u56fe2-2\u7684\u9501\u76f8\u73af\u7ed3\u6784\u4e2d\u52a0\u5165\u989d\u5b9a\u7535\u7f51\u9891\u7387\u5c31\u53ef\u4ee5\u66f4\u5feb\u5b9e\u73b0\u89d2\u9891\u7387\u7684\u540c\u6b65\uff0c\u76f8\u5f53\u4e8e\u89d2\u9891\u7387\u7ed9\u4e86\u4e00\u4e2a\u8865\u507f\u3002
\u4e5f\u53ef\u4ee5\u8fd9\u6837\u7406\u89e3\uff0c\u5f53\u9501\u76f8\u73af\u7684\u8f93\u5165\u662f\u7535\u7f51\u7535\u538b\u77e2\u91cf\u7684\u76f8\u4f4d\u89d2\u5ea6\u7684\u65f6\uff0c\u8be5\u8f93\u5165\u91cf\u5df2\u7ecf\u5305\u542b\u4e86\u89d2\u9891\u7387\uff0c\u7406\u60f3\u60c5\u51b5\u4e0b\u8be5\u89d2\u9891\u7387\u662f\u7535\u7f51\u989d\u5b9a\u89d2\u9891\u7387\u3002\u9501\u76f8\u73af\u5728\u9501\u76f8\u7684\u8fc7\u7a0b\u4e2d\u4f1a\u8c03\u8282\u540c\u6b65\u65cb\u8f6c\u5750\u6807\u7cfb\u7684\u89d2\u9891\u7387\u53ca\u76f8\u4f4d\uff0cPI\u7684\u8f93\u51fa\u53e0\u52a0\u7535\u7f51\u989d\u5b9a\u89d2\u9891\u7387\u53ef\u4ee5\u8868\u793a\u89d2\u9891\u7387\u5df2\u7ecf\u8c03\u8282\u5230\u76f8\u540c\u4e86\uff0c\u53ea\u9700\u8981\u518d\u8c03\u8282\u76f8\u4f4d\u5c31\u53ef\u4ee5\u4e86\u3002\u8fd9\u79cd\u7ed3\u6784\u4e3b\u8981\u662f\u8c03\u76f8\u4f4d\uff0c\u4e0d\u9700\u8981\u8c03\u8282\u89d2\u9891\u7387\u6216\u8005\u4e0d\u9700\u8981\u7528\u592a\u591a\u7684\u65f6\u95f4\u8c03\u8282\u89d2\u9891\u7387\uff0c\u4f7f\u9501\u76f8\u7684\u901f\u5ea6\u53d8\u5feb\u3002\u524d\u63d0\u662f\u7535\u7f51\u7684\u5b9e\u9645\u9891\u7387\u4e0e\u7535\u7f51\u989d\u5b9a\u9891\u7387\u7684\u504f\u5dee\u4e0d\u5927\u3002
3\u3001\u9501\u76f8\u73af\u4e2dPI\u73af\u8282\u7684\u4f5c\u7528
PI\u73af\u8282\u76f8\u5f53\u4e8e\u9501\u76f8\u73af\u7ed3\u6784\u4e2d\u7684\u73af\u8def\u6ee4\u6ce2\u5668\u3002\u9274\u76f8\u5668\u4ea7\u751f\u7684\u8bef\u5dee\u4e2d\u542b\u6709\u9ad8\u9891\u5206\u91cf\u548c\u566a\u58f0\u7b49\uff0c\u901a\u8fc7\u73af\u8def\u6ee4\u6ce2\u5668\u540e\u53ef\u4ee5\u6ee4\u9664\u4ed6\u4eec\u3002
[\u25a0(V_d@V_q )]= [\u25a0(cos\u03b8_o&sin\u03b8_o@-sin\u03b8_o&cos\u03b8_o )][\u25a0(V_\u03b1@V_\u03b2 )]= U[\u25a0(cos\u2061(wt- \u03b8_o)@sin\u2061(wt- \u03b8_o))]= U[\u25a0(cos\u2061(wt- w_o t)@sin\u2061(wt- w_o t))]
\u4e0a\u5f0f\u4e2d\u03b8_o= w_o t\uff0cw_o\u7528\u6765\u8868\u793adq\u5750\u6807\u7684\u65cb\u8f6c\u89d2\u9891\u7387\u3002
\u7531\u5750\u6807\u53d8\u6362\u7684\u539f\u7406\u53ef\u77e5\uff0c\u7535\u538b\u4fe1\u53f7\u4e2d\u6b63\u5e8f\u5206\u91cf\u7ecf\u8fc7dq\u53d8\u6362\u540e\u5176\u89d2\u9891\u7387\u51cf\u5c0f\u4e86dq\u5750\u6807\u7684\u65cb\u8f6c\u89d2\u9891\u7387\uff0c\u800c\u8d1f\u5e8f\u5206\u91cf\u5219\u589e\u52a0\u4e86dq\u5750\u6807\u7684\u65cb\u8f6c\u89d2\u9891\u7387\uff0c\u56e0\u6b64\u57fa\u6ce2\u6b63\u5e8f\u5206\u91cf\u5448\u73b0\u4e3a\u4f4e\u9891\u5206\u91cf\u3002\u5728\u9501\u5b9a\u60c5\u51b5\u4e0b\u4e3a\u76f4\u6d41\u91cf\uff0c\u8d1f\u5e8f\u5206\u91cf\u4e0e\u8c10\u6ce2\u5206\u91cf\u5448\u73b0\u4e3a\u9ad8\u9891\u5206\u91cf\uff0c\u53ef\u4ee5\u901a\u8fc7\u4f4e\u901a\u6ee4\u6ce2\u5668\u8fdb\u884c\u6ee4\u9664\u3002PI\u73af\u8282\u53ef\u4ee5\u8d77\u5230\u4f4e\u901a\u6ee4\u6ce2\u5668\u7684\u4f5c\u7528\uff0c\u4f7f\u9501\u76f8\u5f97\u5230\u7684\u57fa\u6ce2\u76f8\u4f4d\u7ed3\u679c\u66f4\u7a33\u5b9a\u3002
4\u3001\u7535\u7f51\u57fa\u6ce2\u76f8\u4f4d\u89d2\u8ba1\u7b97\u7535\u7f51\u9891\u7387
\u6839\u636e\u7535\u7f51\u7535\u538b\u77e2\u91cf\u76f8\u4f4d\u89d2\u8ba1\u7b97\u7535\u7f51\u9891\u7387\uff1a
\u2206\u03b8= \u03b8_o (k)- \u03b8_o (k-1)
\u4e0a\u5f0f\u4e2d\u2206\u03b8\u8868\u793a\u7ecf\u8fc7\u4e00\u4e2a\u7535\u7f51\u5468\u671f\u65f6\u7535\u7f51\u7535\u538b\u77e2\u91cf\u65cb\u8f6c\u7684\u89d2\u5ea6\uff0c\u03b8_o (k)\u8868\u793a\u7ecf\u8fc7\u7b2ck\u4e2a\u7535\u7f51\u5468\u671f\u7535\u7f51\u7535\u538b\u77e2\u91cf\u65cb\u8f6c\u7684\u89d2\u5ea6\u3002
\u2206t= count\/sampleFreq
\u4e0a\u5f0f\u4e2d\u2206t\u8868\u793a\u6d4b\u91cf\u5230\u7684\u4e00\u4e2a\u7535\u7f51\u5468\u671f\u7684\u65f6\u95f4\u3002count\u8868\u793a\u4e00\u4e2a\u7535\u7f51\u5468\u671f\u5185\u4e2d\u65ad\u6267\u884c\u7684\u6b21\u6570\uff0csampleFreq\u662f\u91c7\u6837\u5468\u671f\uff0c\u8868\u793a1s\u65f6\u95f4\u5185\u4e2d\u65ad\u6267\u884c\u7684\u6b21\u6570\u3002
w= \u2206\u03b8\/\u2206t
\u4e0a\u5f0f\u4e2dw\u8868\u793a\u7535\u7f51\u89d2\u9891\u7387\u3002
F_grid= w\/2\u03c0= (\u2206\u03b8 \u00d7sampleFreq )\/(2\u03c0 \u00d7count)
\u4e0a\u5f0f\u4e2dF_grid\u8868\u793a\u7535\u7f51\u9891\u7387\u3002
\u201c\u76f8\u4f4d\u53d8\u5316\u503c\u201d\u8f6c\u6362\u4e3a\u9891\u7387\u504f\u79fb\uff1a
f_\u504f\u79fb1=(360^\u3002*F)\/(360^\u3002-\u76f8\u4f4d\u53d8\u5316\u503c )-F\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
SPLL\u8fde\u7eed\u65f6\u95f4\u6a21\u578b\u8bbe\u4e00\u4e2a\u4e09\u76f8\u7cfb\u7edf\u6b63\u5e8fn\u6b21\u8c10\u6ce2\u7535\u538b\u5982\u4e0b\u5f0f\u6240\u793a\uff1au_a (t)=Ucos(wt) u_b (t) […]<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_gspb_post_css":"","footnotes":""},"categories":[14],"tags":[],"class_list":["post-3994","post","type-post","status-publish","format-standard","hentry","category-14"],"blocksy_meta":[],"_links":{"self":[{"href":"https:\/\/dcdc.club\/index.php\/wp-json\/wp\/v2\/posts\/3994","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dcdc.club\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dcdc.club\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dcdc.club\/index.php\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/dcdc.club\/index.php\/wp-json\/wp\/v2\/comments?post=3994"}],"version-history":[{"count":2,"href":"https:\/\/dcdc.club\/index.php\/wp-json\/wp\/v2\/posts\/3994\/revisions"}],"predecessor-version":[{"id":3996,"href":"https:\/\/dcdc.club\/index.php\/wp-json\/wp\/v2\/posts\/3994\/revisions\/3996"}],"wp:attachment":[{"href":"https:\/\/dcdc.club\/index.php\/wp-json\/wp\/v2\/media?parent=3994"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dcdc.club\/index.php\/wp-json\/wp\/v2\/categories?post=3994"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dcdc.club\/index.php\/wp-json\/wp\/v2\/tags?post=3994"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}