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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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粒子群参数辨识的超（超）临界锅炉负荷响应数学建模
, PP. 102-106
Keywords: 超（超）临界,锅炉,负荷响应,数字模型,非线性,pso算法,参数辨识
Abstract:
为了适应电网系统中长期稳定性分析的需要,构建了具有线性传递函数形式的超（超）临界锅炉非线性数学模型,同时考虑了模型变量之间在静态和动态过程中的非线性特性,以便通过扰动试验获取准确反映超（超）临界锅炉负荷响应特性的模型参数。针对某超临界600mw机组,采用基于粒子群(ps0)算法的超（超）临界锅炉非线性数学模型参数辨识方法，进行不同机组负荷工况下的模型参数辨识。结果表明:只需在不同负荷点上进行模型参数辨识,即可获得超（超）临界锅炉非线性模型中的非线性函数;辨识负荷点数量越多,非线性函数曲线越平滑,非线性拟合效果也越好;模型输出曲线与实测输出曲线吻合较好,所建模型及其参数辨识方法可行。
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