采用二极管不控整流器和功率开关器件脉宽调制逆变器组成的交-直-交变频器有什么缺点 简要比较VSI类型的逆变器与正弦脉宽调制(SPWM)的谐波产...
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(2) \u529f\u7387\u53d8\u5316\u53ea\u5728\u9006\u53d8\u5668\u5185\u5b8c\u6210\uff0c\u9006\u53d8\u5668\u53ef\u7531\u4e8c\u6781\u7ba1\u6574\u6d41\u4f9b\u7535\uff0c\u7535\u7f51\u7684\u529f\u7387\u56e0\u6570\u8f83\u9ad8\uff1b
(3)\u7531SPWM\u9006\u53d8\u5668\u4f9b\u7535\u7684\u5f02\u6b65\u7535\u673a\u7684\u7535\u6d41\u6ce2\u5f62\u63a5\u8fd1\u6b63\u5f26\u6ce2\uff0c\u8c10\u6ce2\u5206\u91cf\u8f83\u5c11\uff0c\u77e9\u9635\u8109\u52a8\u5c0f\uff0c\u6539\u5584\u4e86\u7535\u52a8\u673a\u7684\u8fd0\u884c\u6027\u80fd\u3002
1.1\u9006\u53d8\u5668\u529f\u7387\u5668\u4ef6\u7684\u9009\u62e9
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1.2 PVS \u4e2d\u9006\u53d8\u5668\u7684\u62d3\u6251\u7ed3\u6784\u56fe
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(1)\u5de5\u9891\u9006\u53d8\u5668
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(2)\u9ad8\u9891\u9006\u53d8\u5668
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1.3 PVS \u4e2d\u9006\u53d8\u5668\u8f93\u51fa\u6ce2\u5f62
(1)\u65b9\u6ce2\u9006\u53d8\u5668
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(2)\u4fee\u6b63\u6ce2\u9006\u53d8\u5668
\u56fe3b\u793a\u51fa\u4fee\u6b63\u6ce2\u9006\u53d8\u5668\u7684\u8f93\u51fa\u7535\u538b\u6ce2\u5f62\u3002\u4e0e\u65b9\u6ce2\u76f8\u6bd4\uff0c\u4fee\u6b63\u6ce2\u7684\u6ce2\u5f62\u6709\u660e\u663e\u6539\u5584\uff0c\u800c\u4e14\u9ad8\u6b21\u8c10\u6ce2\u542b\u91cf\u4e5f\u51cf\u5c11\u4e86\u3002\u4f20\u7edf\u7684\u4fee\u6b63\u6ce2\u9006\u53d8\u5668\u662f\u901a\u8fc7\u5bf9\u65b9\u6ce2\u7535\u538b\u8fdb\u884c\u9636\u68af\u8fed\u52a0\u800c\u4ea7\u751f\u7684\uff0c\u8fd9\u79cd\u65b9\u5f0f\u5b58\u5728\u63a7\u5236\u7535\u8def\u590d\u6742\uff0c\u8fed\u52a0\u7ebf\u8def\u6240\u7528\u7684\u529f\u7387\u5f00\u5173\u7ba1\u8f83\u591a\uff0c\u4ee5\u53ca\u9006\u53d8\u5668\u7684\u4f53\u79ef\u548c\u91cd\u91cf\u8f83\u5927\u7b49\u8bf8\u591a\u95ee\u9898\u3002\u8fd1\u5e74\u6765\uff0c\u968f\u7740\u7535\u529b\u7535\u5b50\u6280\u672f\u7684\u5feb\u901f\u53d1\u5c55\uff0c\u5df2\u666e\u904d\u91c7\u7528PWM\u8109\u5bbd\u8c03\u5236\u65b9\u5f0f\u751f\u6210\u4fee\u6b63\u6ce2\u8f93\u51fa\u3002\u76ee\u524d\uff0c\u4fee\u6b63\u6ce2\u9006\u53d8\u5668\u5df2\u5e7f\u6cdb\u7528\u4e8e\u8fb9\u8fdc\u5730\u533a\u7684\u7528\u6237\u7cfb\u7edf\uff0c\u56e0\u4e3a\u8fd9\u4e9b\u7528\u6237\u7cfb\u7edf\u5bf9\u7528\u7535\u8d28\u91cf\u8981\u6c42\u4e0d\u662f\u5f88\u9ad8\uff0c\u800c\u5b83\u80fd\u591f\u6ee1\u8db3\u5927\u90e8\u5206\u7528\u7535\u8bbe\u5907\u7684\u9700\u6c42\uff0c\u4f46\u5b83\u8fd8\u662f\u5b58\u572820% \u7684\u8c10\u6ce2\u5931\u771f\uff0c\u5728\u8fd0\u884c\u7cbe\u5bc6\u8bbe\u5907\u65f6\u4f1a\u51fa\u73b0\u95ee\u9898\uff0c\u4e5f\u4f1a\u5bf9\u901a\u8baf\u8bbe\u5907\u9020\u6210\u9ad8\u9891\u5e72\u6270\uff0c\u56e0\u6b64\u6b64\u65f6\u5fc5\u987b\u4f7f\u7528\u6b63\u5f26\u6ce2\u9006\u53d8\u5668\u3002
(3)\u6b63\u5f26\u6ce2\u9006\u53d8\u5668
\u56fe3c
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2 \u592a\u9633\u80fdPVS \u4e2d\u9006\u53d8\u5668\u5206\u7c7b
2.1 \u72ec\u7acb\u578b\u9006\u53d8\u5668
\u56fe4\u793a\u51fa\u72ec\u7acbPVS \u7ed3\u6784\u56fe\u3002\u5b83\u901a\u5e38\u7531\u5149\u4f0f\u9635\u5217\u3001\u84c4\u7535\u6c60\u3001\u63a7\u5236\u5668\u3001\u9006\u53d8\u5668\u53ca\u7528\u7535\u8d1f\u8f7d\u7b495\u90e8\u5206\u7ec4\u6210\u3002
\u76ee\u524d\u4e5f\u6709\u628a\u84c4\u7535\u6c60\u5145\u653e\u7535\u63a7\u5236\u5668\u548c\u9006\u53d8\u5668\u505a\u6210\u4e00\u4f53\u7684\u72ec\u7acb\u578b\u9006\u53d8\u5668\u3002\u4f8b\u5982\uff1aSolarix \u6b63\u5f26\u6ce2\u9006\u53d8\u5668\uff0c\u5b83\u65e2\u6709\u5c06\u76f4\u6d41\u7535\u9006\u53d8\u6210\u4ea4\u6d41\u7535\u7684\u529f\u80fd\uff1b\u4e5f\u6709\u5bf9\u84c4\u7535\u6c60\u5145\u653e\u7535\u8fdb\u884c\u7ba1\u7406\u7684\u529f\u80fd\u3002
\u6839\u636e\u72ec\u7acb\u578b\u9006\u53d8\u5668\u5728PVS \u4e2d\u7684\u8fd0\u884c\u7279\u70b9\uff0c\u53ef\u5bf9\u7528\u4e8e\u72ec\u7acbPVS \u7684\u9006\u53d8\u5668\u8fdb\u884c\u4e0b\u8ff0\u6027\u80fd\u8bc4\u4ef7\u3002
(1)\u53ef\u9760\u6027
\u4ece\u4ee5\u5f80PVS \u7684\u8fd0\u884c\u6765\u770b\uff0c\u9006\u53d8\u5668\u662f\u5f71\u54cd\u7cfb\u7edf\u53ef\u9760\u6027\u7684\u4e3b\u8981\u56e0\u7d20\u4e4b\u4e00\u3002\u7531\u4e8e\u72ec\u7acb\u578b\u9006\u53d8\u5668\u4e00\u822c\u5de5\u4f5c\u5728\u8fb9\u8fdc\u5730\u533a\uff0c\u4e00\u65e6\u51fa\u73b0\u95ee\u9898\u7ef4\u4fee\u5f88\u4e0d\u65b9\u4fbf\uff0c\u6240\u4ee5\u72ec\u7acb\u578b\u9006\u53d8\u5668\u7684\u9996\u8981\u8981\u6c42\u662f\u5fc5\u987b\u8fd0\u884c\u53ef\u9760\u5b89\u5168\u3002
(2)\u989d\u5b9a\u8f93\u51fa\u5bb9\u91cf
\u5728\u72ec\u7acb\u578b\u9006\u53d8\u5668\u4e2d\uff0c\u989d\u5b9a\u8f93\u51fa\u5bb9\u91cf\u4e5f\u662f\u4e00\u4e2a\u5f88\u91cd\u8981\u7684\u53c2\u8003\u56e0\u7d20\uff0c\u5b83\u8868\u793a\u9006\u53d8\u5668\u5411\u8d1f\u8f7d\u4f9b\u7535\u7684\u80fd\u529b\u3002\u989d\u5b9a\u8f93\u51fa\u5bb9\u91cf\u503c\u9ad8\u7684\u9006\u53d8\u5668\u53ef\u5e26\u66f4\u591a\u7684\u7528\u7535\u8d1f\u8f7d\u3002\u5728\u6b64\u9700\u7279\u522b\u6307\u51fa\u7684\u662f\uff0c\u5f53\u9006\u53d8\u5668\u4e0d\u662f\u7eaf\u963b\u6027\u8d1f\u8f7d\u65f6\uff0c\u9006\u53d8\u5668\u7684\u8d1f\u8f7d\u80fd\u529b\u5c06\u5c0f\u4e8e\u5b83\u6240\u7ed9\u51fa\u7684\u989d\u5b9a\u8f93\u51fa\u5bb9\u91cf\u503c\u3002
(3)\u9006\u53d8\u5668\u6548\u7387
\u9006\u53d8\u5668\u6548\u7387\u7684\u9ad8\u4f4e\u5bf9\u7cfb\u7edf\u63d0\u9ad8\u6709\u6548\u53d1\u7535\u91cf\u548c\u964d\u4f4e\u53d1\u7535\u6210\u672c\u6709\u7740\u91cd\u8981\u7684\u5f71\u54cd\u3002\u7531\u4e8e\u76ee\u524d\u592a\u9633\u7535\u6c60\u7684\u6210\u672c\u4ecd\u7136\u6bd4\u8f83\u9ad8\uff0c\u800c\u4e14\u8fd1\u5e74\u4e5f\u4e0d\u4f1a\u6709\u5927\u7684\u964d\u4f4e\uff0c\u56e0\u6b64\u5bf9\u4e8e\u72ec\u7acb\u578b\u9006\u53d8\u5668\uff0c\u5219\u8981\u6c42\u6709\u9ad8\u7684\u6548\u7387\uff0c\u7279\u522b\u662f\u4f4e\u8d1f\u8377\u4f9b\u7535\u65f6\uff0c\u4ecd\u7136\u6709\u8f83\u9ad8\u7684\u6548\u7387\uff0c\u4f4e\u7684\u7a7a\u8f7d\u8d1f\u8377\u662f\u72ec\u7acbPVS \u4e2d\u4e13\u7528\u9006\u53d8\u5668\u76f8\u5bf9\u666e\u901a\u9006\u53d8\u5668\u7684\u66f4\u9ad8\u8981\u6c42\u3002
(4)\u8d77\u52a8\u6027\u80fd
\u4e00\u822c\u7535\u611f\u6027\u8d1f\u8f7d\uff0c\u5982\u7535\u673a\u3001\u51b0\u7bb1\u3001\u7a7a\u8c03\u3001\u6d17\u8863\u673a\u3001\u5927\u529f\u7387\u6c34\u6cf5\u7b49\uff0c\u5728\u8d77\u52a8\u65f6\uff0c\u529f\u7387\u53ef\u80fd\u662f\u989d\u5b9a\u529f\u7387\u76845\uff5e6\u500d\u3002\u56e0\u6b64\uff0c\u901a\u5e38\u7535\u611f\u8d1f\u8f7d\u8d77\u52a8\u65f6\uff0c\u9006\u53d8\u5668\u5c06\u627f\u53d7\u5927\u7684\u77ac\u65f6\u6d6a\u6d8c\u529f\u7387\u3002\u9006\u53d8\u5668\u5e94\u4fdd\u8bc1\u5728\u989d\u5b9a\u8d1f\u8f7d\u4e0b\u53ef\u9760\u8d77\u52a8\uff0c\u9ad8\u6027\u80fd\u7684\u9006\u53d8\u5668\u53ef\u505a\u5230\u8fde\u7eed\u591a\u6b21\u6ee1\u8d1f\u8377\u8d77\u52a8\u800c\u4e0d\u635f\u574f\u529f\u7387\u5668\u4ef6\u3002\u5c0f\u578b\u9006\u53d8\u5668\u4e3a\u4e86\u81ea\u8eab\u5b89\u5168, \u6709\u65f6\u9700\u91c7\u7528\u8f6f\u8d77\u52a8\u6216\u9650\u6d41\u8d77\u52a8\u3002
(5)\u8c10\u6ce2\u5931\u771f
\u5f53\u72ec\u7acb\u578b\u9006\u53d8\u5668\u8f93\u51fa\u6ce2\u5f62\u662f\u65b9\u6ce2\u548c\u4fee\u6b63\u6ce2\u65f6\uff0c\u9006\u53d8\u5668\u7684\u8f93\u51fa\u7535\u6d41\u4e2d\u9664\u4e86\u57fa\u6ce2\u5916\u8fd8\u6709\u9ad8\u6b21\u8c10\u6ce2\uff0c\u9ad8\u6b21\u8c10\u6ce2\u7535\u6d41\u4f1a\u5728\u7535\u611f\u6027\u8d1f\u8f7d\u4e0a\u4ea7\u751f\u6da1\u6d41\u7b49\u9644\u52a0\u635f\u8017\uff0c\u5bfc\u81f4\u90e8\u4ef6\u4e25\u91cd\u53d1\u70ed\uff0c\u4e0d\u5229\u4e8e\u7535\u6c14\u8bbe\u5907\u7684\u5b89\u5168\u3002\u65b9\u6ce2\u9006\u53d8\u5668\u7684\u8c10\u6ce2\u5931\u771f\u5927\u7ea6\u5728 40% \u5de6\u53f3\uff0c\u4e00\u822c\u53ea\u9002\u7528\u4e8e\u7535\u963b\u8d1f\u8f7d\uff1b\u4fee\u6b63\u6ce2\u9006\u53d8\u5668\u7684\u8c10\u6ce2\u5931\u771f\u5c0f\u4e8e20%\uff0c\u9002\u5408\u7528\u4e8e\u5927\u90e8\u5206\u8d1f\u8f7d\uff1b\u6b63\u5f26\u6ce2\u9006\u53d8\u5668\u7684\u8c10\u6ce2\u5931\u771f\u5c0f\u4e8e3%\uff0c\u5176\u6ce2\u5f62\u8d28\u91cf\u6bd4\u5e02\u7535\u7535\u7f51\u7684\u8d28\u91cf\u8fd8\u597d\uff0c\u80fd\u591f\u9002\u7528\u4e8e\u6240\u6709\u7684\u4ea4\u6d41\u7528\u7535\u8d1f\u8f7d\u3002
(6) \u8f93\u51fa\u7535\u538b\u7a33\u5b9a\u80fd\u529b
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非正弦波，波形不好，杂波多。
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