设计一个控制一台三相异步电动机的控制电路:Y-△降压起动；停机时进行能耗制动；具有保护环节 哈尔滨理工大学电气工程及其自动化专业怎么样
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1\u7535\u7f06\u7cfb
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2\u9ad8\u7535\u538b\u7cfb
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3\u7535\u673a\u7535\u5668\u53ca\u5176\u63a7\u5236\u7cfb
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4\u7535\u6c14\u6280\u672f
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\u5176\u7814\u7a76\u6210\u679c\u8fd8\u662f\u503c\u5f97\u80af\u5b9a\u7684\uff0c\u4e5f\u662f\u6b64\u6b21\u8bc4\u6d4b\u4e2d\u552f\u4e00\u7684\u4eae\u70b9\uff0c\u5728\u7535\u6c14\u5b66\u9662\u7684\u7814\u7a76\u9879\u76ee\u4e2d\u5360\u6709\u4e00\u5b9a\u6bd4\u4f8b\uff0c\u4f46\u5728\u5168\u7701\u8303\u56f4\u5185\u5e76\u4e0d\u5341\u5206\u7a81\u51fa\uff0c\u5176\u4e3b\u8981\u7ec4\u6210\u662f\u7531\u539f\u54c8\u7535\u5de5\u5b66\u9662\u65f6\u671f\u7684\u5e94\u7528\u7535\u5b50\u7cfb\u548c00\u5e74\u5de6\u53f3\u7ec4\u5efa\u7684\u7535\u4f20\u7cfb\u76f8\u7ed3\u5408\u3002\uff08\u6ce8\uff1b\u572898\u5e74\u4e13\u4e1a\u8c03\u6574\u65f6\u671f\uff0c\u5e94\u7528\u7535\u5b50\u7cfb\u88ab\u6574\u4f53\u5e76\u5165\u5f53\u65f6\u65b0\u7ec4\u5efa\u7684\u7535\u5b50\u5de5\u7a0b\u4e13\u4e1a\uff09
\u5b66\u751f\u8d28\u91cf\u5e94\u8be5\u8bf4\u548c\u7535\u6c14\u6280\u672f\u5dee\u4e0d\u591a\uff0c\u5728\u6bcf\u5e74\u5206\u65b9\u5411\u65f6\uff0c\u9664\u975e\u4e3b\u52a8\u9009\u7684\uff0c\u5269\u4e0b\u7684\u540d\u989d\u57fa\u672c\u4e0a\u90fd\u662f\u4ece\u7535\u673a\u7535\u7f06\u4e0e\u9ad8\u538b\u6389\u4e0b\u6765\u7684\u3002
\u5728\u8fd9\u91cc\u8fd8\u60f3\u591a\u8bf4\u51e0\u53e5\uff0c\u539f\u672c\u7535\u4f20\u4e0e\u7535\u6c14\u6280\u672f\u4e5f\u662f\u5dee\u4e0d\u591a\u7684\uff0c\u5404\u6709\u4f18\u52bf\u5404\u6709\u52a3\u52bf\uff0c\u4f46\u8003\u8651\u5230\u7535\u6c14\u6280\u672f\u7684\u5e08\u8d44\u4e0e\u5386\u53f2\u4f20\u7edf\u8fd8\u662f\u6bd4\u7535\u4f20\u6709\u6240\u9ad8\u51fa\uff0c\u867d\u7136\u5e76\u4e0d\u591a\u3002\u6211\u8ba4\u4e3a\u7535\u4f20\u653e\u5728\u7b2c\u4e94\u6bd4\u8f83\u5408\u9002\u3002\u4f46\u6709\u53ef\u80fd\u8fd8\u662f\u4f1a\u5b58\u5728\u4e9b\u8bb8\u4e89\u8bae\uff0c\u5e0c\u671b\u5e7f\u5927\u7535\u6c14\u5b66\u9662\u540c\u4ec1\u5171\u540c\u8ba8\u8bba\u3002
6.\u7535\u529b\u7cfb\u7edf\u53ca\u5176\u81ea\u52a8\u5316\u7cfb
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\u751f\u6e90\u60c5\u51b5\u7cdf\u4e8e4.5\u540d\uff0c\u6bcf\u5e74\u5206\u65b9\u5411\u540e\u53ea\u6709\u5341\u4eba\u5de6\u53f3\u9009\u6b64\u65b9\u5411\u3002
\u90a3\u5f53\u7136\u597d\u4e86\u3002
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\u5b66\u9662\u6240\u5c5e\u7684\u201c\u7535\u4ecb\u8d28\u5de5\u7a0b\u5b9e\u9a8c\u5ba4\u201d\u4e3a\u6559\u80b2\u90e8\u91cd\u70b9\u5b9e\u9a8c\u5ba4\uff0c\u201c\u6c7d\u8f66\u7535\u5b50\u7814\u53d1\u4e2d\u5fc3\u201d\u4e3a\u6559\u80b2\u90e8\u6c7d\u8f66\u7814\u53d1\u4e2d\u5fc3\uff0c\u201c\u7535\u6c14\u5de5\u7a0b\u53ca\u5176\u81ea\u52a8\u5316\u8bd5\u9a8c\u7814\u7a76\u4e2d\u5fc3\u201d\u3001\u201c\u7535\u673a\u53ca\u5176\u63a7\u5236\u5b9e\u9a8c\u5ba4\u201d\u4e3a\u7701\u666e\u901a\u9ad8\u7b49\u5b66\u6821\u91cd\u70b9\u7814\u7a76\u578b\u5b9e\u9a8c\u5ba4\u3002
交流电机能耗制动制动控制类型较多，主回路有变压器串可调电阻式、自耦调压器式等，主要是为了方便调制制动电流；控制回路有速度控制、时间控制等方式。下图为Y-△降压起动；停机时进行能耗制动的一般原理图，图中电机制动时，电机为三角形接法，当然也可采用星形接法。
绛旓細鍋氫竴涓帴瑙﹀櫒鑱旈攣姝ｅ弽杞鎺у埗灏卞彲浠ヨ揪鍒拌姹傘傚鍥撅紝鐭矾淇濇姢FU1(涓诲洖璺級銆丗U2锛堟帶鍒跺洖璺)锛岃繃杞戒繚鎶R锛屼簰閿並M2銆並M1杈呭姪甯搁棴瑙﹀ご銆
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