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<span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体;"><span style="FONT-SIZE: 18pt; FONT-FAMILY: 隶书; mso-hansi-font-family: 宋体; mso-bidi-font-size: 12.0pt; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-family: "Times New Roman";"><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; LINE-HEIGHT: 150%; mso-char-indent-count: 2.0;"><span style="FONT-SIZE: 14pt; LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt;">题目：</span><span lang="EN-US" style="FONT-SIZE: 16pt; LINE-HEIGHT: 150%; FONT-FAMILY: 黑体; mso-hansi-font-family: 黑体; mso-bidi-font-weight: bold;">A</span><span style="FONT-SIZE: 16pt; LINE-HEIGHT: 150%; FONT-FAMILY: 黑体; mso-hansi-font-family: 黑体; mso-bidi-font-weight: bold;">题</span><span style="FONT-SIZE: 16pt; LINE-HEIGHT: 150%; FONT-FAMILY: 黑体; mso-hansi-font-family: 黑体;">自适应温控系统</span><span style="FONT-SIZE: 14pt; LINE-HEIGHT: 150%; FONT-FAMILY: 黑体; mso-hansi-font-family: 黑体; mso-bidi-font-size: 12.0pt;"><br/><br/></span><span style="FONT-SIZE: 14pt; LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt;">关 键 词</span><u><span lang="EN-US" style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; mso-bidi-font-weight: bold;"><span style="mso-spacerun: yes;"><br/>
</span>PI</span></u><u><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; mso-bidi-font-weight: bold;">控制 </span></u><u><span lang="EN-US" style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%; FONT-FAMILY: 宋体;"><span style="mso-spacerun: yes;"><br/><br/>
</span></span></u><u><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%; FONT-FAMILY: 宋体;">模糊<span lang="EN-US">PI</span>控制<span lang="EN-US"><span style="mso-spacerun: yes;"><br/><br/>
</span></span>史密斯预估控制 <span style="mso-spacerun: yes;"><br/><br/>
</span>灰色预测<span lang="EN-US"><span style="mso-spacerun: yes;"><br/><br/>
</span></span>神经网络预测 </span></u><u><span lang="EN-US" style="FONT-SIZE: 14pt; LINE-HEIGHT: 150%; mso-bidi-font-size: 12.0pt;"><p></p></span></u></p><p></p><p></p><p></p><p></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"></p></span></span><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体;"><span style="FONT-SIZE: 18pt; FONT-FAMILY: 隶书; mso-hansi-font-family: 宋体; mso-bidi-font-size: 12.0pt; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-family: "Times New Roman";">摘要：</span></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体;">温度控制系统往往具有大延时、慢时变、非线性等特性，因此给一般的控制算法带来了一定的困难。为了使控制达到很好的效果，所采用的算法必须要具有强的自适应性，和鲁棒性。本文就从实际的工程算法设计出发，首先对此系统用机理建模和试验建模的方法进行了分析，并且根据这些特性采用和设计了不同的算法，最后就一般性的温度控制系统特性，假设了此冷库模型。此冷库体系模型为一阶惯性带延时的模型结构，并且选择了</span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">常规的</span><span lang="EN-US" style="FONT-SIZE: 12pt;"><font face="Times New Roman">PI</font></span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">控制、基于灰色改进的（最小二乘法）预测与</span><span lang="EN-US" style="FONT-SIZE: 12pt;"><font face="Times New Roman">PI</font></span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">控制结合，和</span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体;">史密斯预估控制算法对</span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">这三种控制系统来进行仿真性能测试。</span><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体;"><p></p></span></p><p></p><p></p><p></p><p></p><p></p><p></p><p><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: "Times New Roman","serif"; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;"><span style="mso-tab-count: 1;"><br/><br/><br/>
</span></span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman"; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-family: "Times New Roman";">在模拟仿真中，假设延时为</span><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: "Times New Roman","serif"; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">4</span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman"; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-family: "Times New Roman";">秒：常规的</span><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: "Times New Roman","serif"; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">PI</span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman"; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-family: "Times New Roman";">控制基本能满足控制要求，能在</span><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: "Times New Roman","serif"; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">40</span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman"; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-family: "Times New Roman";">秒（我们模拟时间以秒为单位，最大长度为</span><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: "Times New Roman","serif"; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">200</span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman"; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-family: "Times New Roman";">秒），十倍的延时的时间内从</span><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: "Times New Roman","serif"; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">230K</span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman"; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-family: "Times New Roman";">达到了</span><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: "Times New Roman","serif"; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">180K</span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman"; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-family: "Times New Roman";">稳定，但温度仍然因为冷库体系微扰而有所细微的波动，难以达到很高精度的控制。然后我们在后备制冷系统的反馈部分加入了灰色（最小二乘法）预测系统，以使得系统对简单的</span><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: "Times New Roman","serif"; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">PI</span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman"; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-family: "Times New Roman";">控制无法克服的温度波动问题进行改善，最后在模拟结果中我们看到了控制性能的明显改善，但时间内从</span><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: "Times New Roman","serif"; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">230K</span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman"; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-family: "Times New Roman";">达到了</span><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: "Times New Roman","serif"; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">180K</span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman"; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-family: "Times New Roman";">稳定仍然消耗了</span><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: "Times New Roman","serif"; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">40</span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman"; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-family: "Times New Roman";">秒，系统冷却速度没有明显提高。</span></p><p></p>
[此贴子已经被作者于2008-4-16 23:14:08编辑过] 临时学习一下 需要学习一下 好东西
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