{"id":122818,"date":"2026-11-05T19:32:37","date_gmt":"2026-11-05T11:32:37","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/122818.html"},"modified":"2026-11-05T19:32:37","modified_gmt":"2026-11-05T11:32:37","slug":"%e5%b7%a5%e4%b8%9a%e6%8e%a7%e5%88%b6%e7%b3%bb%e7%bb%9f%e6%b7%b1%e5%ba%a6%e8%a7%a3%e6%9e%90%ef%bc%9a36-%e4%b8%b2%e7%ba%a7%e6%8e%a7%e5%88%b6%ef%bc%88cascade-control%ef%bc%89","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/122818.html","title":{"rendered":"\u5de5\u4e1a\u63a7\u5236\u7cfb\u7edf\u6df1\u5ea6\u89e3\u6790\uff1a36 \u4e32\u7ea7\u63a7\u5236\uff08Cascade Control\uff09"},"content":{"rendered":"

\/* MD \/ \u5bcc\u6587\u672c\u4e2d\u7684 .toc\uff08\u542b\u535a\u5ba2\u56ed\u642c\u5bb6\u7b49\u5d4c\u5957\u7ed3\u6784\uff09\uff1b.toc-box \u5728\u4fa7\u680f\uff0c\u4e0d\u53d7\u5f71\u54cd *\/
\n #content_views .toc,
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\n #content_views.markdown_views > p:empty:has(+ .toc),
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\n \/* \u5bcc\u6587\u672c\u65e7\u7248\u76ee\u5f55\u6807\u8bb0 *\/
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\n #content_views.markdown_views > .toc + h1,
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\n #content_views.markdown_views > .toc + h3,
\n #content_views.markdown_views > .toc + h4,
\n #content_views.markdown_views > .toc + p:empty + h1,
\n #content_views.markdown_views > .toc + p:empty + h2,
\n #content_views.markdown_views > .toc + p:empty + h3,
\n #content_views.markdown_views > .toc + p:empty + h4 {
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\u7b2c36\u7ae0 \u4e32\u7ea7\u63a7\u5236\uff08Cascade Control\uff09<\/h2>\n

36.1 \u4e3a\u4ec0\u4e48\u4e00\u4e2aPID\u4e0d\u591f\uff1f<\/h3>\n

\u524d\u9762\u7684\u7ae0\u8282\u5efa\u7acb\u4e86\u57fa\u672c\u95ed\u73af\uff1a<\/p>\n

SP \u2192 PID \u2192 Actuator \u2192 Process \u2192 PV \u2192 Feedback<\/p>\n

\u8fd9\u662f\u6700\u57fa\u672c\u7684\u5355\u56de\u8def\u63a7\u5236\uff08Single Loop Control\uff09\u3002\u4f8b\u5982\u6e29\u5ea6\u63a7\u5236\uff1a<\/p>\n

Temperature SP \u2192 Temperature PID \u2192 Heater \u2192 Temperature<\/p>\n

\u770b\u8d77\u6765\u5b8c\u6574\u3002\u4f46\u5de5\u4e1a\u73b0\u573a\u7ecf\u5e38\u9047\u5230\u4e00\u4e2a\u95ee\u9898\uff1a<\/p>\n

\u63a7\u5236\u5bf9\u8c61\u5185\u90e8\u5b58\u5728\u591a\u4e2a\u52a8\u6001\u73af\u8282\uff0c\u800c\u4e00\u4e2aPID\u53ea\u80fd\u770b\u5230\u6700\u7ec8\u7ed3\u679c\u3002<\/p>\n

\u4f8b\u5982\u52a0\u70ed\u7cfb\u7edf\uff1a<\/p>\n

PID \u2192 Steam Valve \u2192 Steam Flow \u2192 Heat Transfer \u2192 Temperature<\/p>\n

\u6e29\u5ea6\u53d8\u5316\u6162\u3002\u5982\u679c\u84b8\u6c7d\u538b\u529b\u7a81\u7136\u53d8\u5316\uff0c\u9600\u95e8\u867d\u7136\u6b63\u5e38\u52a8\u4f5c\uff0c\u4f46\u8fdb\u5165\u6362\u70ed\u5668\u7684\u70ed\u91cf\u5df2\u7ecf\u6539\u53d8\u3002\u6e29\u5ea6PID\u53ea\u80fd\u7b49\u5f85\u6e29\u5ea6\u53d8\u5316\u4ee5\u540e\u624d\u53d1\u73b0\u3002<\/p>\n

\u8fd9\u5c31\u662f\u53cd\u9988\u63a7\u5236\u7684\u5929\u7136\u7f3a\u70b9\uff1a\u53ea\u80fd\u4e8b\u540e\u7ea0\u6b63\u3002\u56e0\u6b64\u9700\u8981\u4e32\u7ea7\u63a7\u5236\u3002<\/p>\n

36.2 \u4e32\u7ea7\u63a7\u5236\u7684\u57fa\u672c\u601d\u60f3<\/h3>\n

\u4e32\u7ea7\u63a7\u5236\u628a\u4e00\u4e2a\u63a7\u5236\u56de\u8def\u62c6\u6210\u4e24\u4e2aPID\u3002<\/p>\n

\u7ed3\u6784\uff1a<\/p>\n

Master PID
\n \u2193
\n Slave SP
\n \u2193
\n Slave PID
\n \u2193
\n Actuator
\n \u2193
\n Process<\/p>\n

\u4e5f\u5c31\u662f\uff1a\u5916\u73af\u63a7\u5236\u6700\u7ec8\u76ee\u6807\uff0c\u5185\u73af\u63a7\u5236\u4e2d\u95f4\u53d8\u91cf\u3002<\/p>\n

36.3 \u4e32\u7ea7\u63a7\u5236\u5b8c\u6574\u7ed3\u6784<\/h3>\n

\u5b9e\u9645\u7ed3\u6784\uff1a<\/p>\n

SP
\n \u2193
\n \u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510
\n \u2502 Master PID \u2502
\n \u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518
\n \u2193
\n Slave SP
\n \u2193
\n \u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500<\/p>\n","protected":false},"excerpt":{"rendered":"

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