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OALib Journal期刊
ISSN: 2333-9721
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基于PSO-Elman神经网络的汽轮机排汽焓在线预测计算
, PP. 35-40
Keywords: 汽轮机,排汽焓,Elman神经网络,粒子群优化算法,在线预测
Abstract:
Elman神经网络作为一种动态递归网络被应用到汽轮机排汽焓在线预测计算中,以两汽轮机组末级抽汽及排汽焓值为例进行了在线计算,证明了该方法能够准确地在线预测汽轮机排汽焓值,具有训练速度快、结构简单、精度高的特点,是一种行之有效的预测方法.同时依据BP算法陷入局部极小值的缺点,提出了利用粒子群算法的全局寻优能力优化Elman网络连接权值系数的方法,仿真结果表明利用PSO-Elman神经网络可以建立精度更高的预测模型.
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