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采用多标量模型的感应电机简化模型预测转矩控制算法 被引量:6
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作者 王静 卢子广 《中国电机工程学报》 EI CSCD 北大核心 2022年第24期9053-9061,共9页
模型预测转矩控制(model predictive torque control,MPTC)基于定子磁链和定子电流预测值间接获取转矩预测值,会造成转矩预测误差,引起转矩纹波。且其价值函数中,转矩与磁链的量纲不同,需引入加权因子加以调整。该文引入定子磁链与定子... 模型预测转矩控制(model predictive torque control,MPTC)基于定子磁链和定子电流预测值间接获取转矩预测值,会造成转矩预测误差,引起转矩纹波。且其价值函数中,转矩与磁链的量纲不同,需引入加权因子加以调整。该文引入定子磁链与定子电流矢量的矢积和标积,选择新的状态变量,导出新的感应电机多标量模型,并将其与模型预测转矩控制相结合,提出一种多标量模型预测转矩控制方法。运用该文所提方法直接预测转矩和无功转矩,能够简化算法,减小转矩预测误差,提高转矩响应速度,抑制转矩纹波。此外,该文定义一个统一加权因子的价值函数,构成价值函数的转矩与无功转矩的量纲相同,避免繁琐的加权因子选取设计。最后,通过实验验证所提方法的有效性和可行性。 展开更多
关键词 感应电机 模型预测转矩控制 统一加权因子 多标量模型 简化算法
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Multi-objective intelligent coordinating optimization blending system based on qualitative and quantitative synthetic model 被引量:3
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作者 王雅琳 马杰 +2 位作者 桂卫华 阳春华 张传福 《Journal of Central South University of Technology》 EI 2006年第5期552-557,共6页
A multi-objective intelligent coordinating optimization strategy based on qualitative and quantitative synthetic model for Pb-Zn sintering blending process was proposed to obtain optimal mixture ratio. The mechanism a... A multi-objective intelligent coordinating optimization strategy based on qualitative and quantitative synthetic model for Pb-Zn sintering blending process was proposed to obtain optimal mixture ratio. The mechanism and neural network quantitative models for predicting compositions and rule models for expert reasoning were constructed based on statistical data and empirical knowledge. An expert reasoning method based on these models were proposed to solve blending optimization problem, including multi-objective optimization for the first blending process and area optimization for the second blending process, and to determine optimal mixture ratio which will meet the requirement of intelligent coordination. The results show that the qualified rates of agglomerate Pb, Zn and S compositions are increased by 7.1%, 6.5% and 6.9%, respectively, and the fluctuation of sintering permeability is reduced by 7.0%, which effectively stabilizes the agglomerate compositions and the permeability. 展开更多
关键词 Pb-Zn sintering blending process qualitative and quantitative synthetic model multi-objectiveoptimization area optimization intelligent coordination
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