| 围护结构动态负荷传递函数模型合成的系统辨识法 |
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| 引用本文： | 沈宇纲,张春路,丁国良. 围护结构动态负荷传递函数模型合成的系统辨识法[J]. 暖通空调, 2002, 32(2): 85-88 |
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| 作者姓名： | 沈宇纲 张春路 丁国良 |
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| 作者单位： | 上海交通大学 |
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| 基金项目： | 国家重点基础研究发展规划项目资助 (No .G2 0 0 0 2 63 0 9“高效节能的关键科学问题”) |
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| 摘 要： | 为求得稳定、低价、高精度的围护结构动态负荷合成传递函数模型，提出了基于系统辨识理论的传递函数模型合成方法，通过对有限个传递函数叠加成的线性系统进行最小二乘法辨识，获得该系统的等价传递函数模型。对6个10阶以上的传递函数进行合成，得到5阶的合成传递函数，并采用阶跃扰量和正弦波扰量检验其稳定性和精度，效果良好。
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| 关 键 词： | 围护结构 传递函数 合成 系统辨识 动态负荷 |
| 修稿时间： | 2000-10-23 |
System identification method for composition of z-transfer function of building envelope |
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| By Shen Yugang,Zhang Chunlu and Ding Guoliang. System identification method for composition of z-transfer function of building envelope[J]. Journal Heating Ventilating and Airconditioning, 2002, 32(2): 85-88 |
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| Authors: | By Shen Yugang Zhang Chunlu Ding Guoliang |
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| Abstract: | In order to get a stable, low order and acc ur ate composite z transfer function of dynamic load of building envelope, develop s a method of z transfer function composition on a basis of the system indentif ication theory. The z transfer function equivalent to linear superposition syst em of limited z transfer functions could be derived through the least square ap proximation procedure. A five order composite z transfer function is obtained f rom six 10 or higher order z transfer functions with the method. The stability and accuracy test results show good effects with checkout by step and sine wave . |
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| Keywords: | building envelope z transfer function compo sition system identification |
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