依据风电场复合储能系统的功能和工作特性,提出了一种复合储能系统(hybrid energy storage system,HESS)容量的优化配置方法,使其在满足平滑风电功率波动等技术性能的同时,还能满足系统的经济性要求。首先,提出了一种能够定量反映功率...依据风电场复合储能系统的功能和工作特性,提出了一种复合储能系统(hybrid energy storage system,HESS)容量的优化配置方法,使其在满足平滑风电功率波动等技术性能的同时,还能满足系统的经济性要求。首先,提出了一种能够定量反映功率曲线平滑度的判据标准。其次,建立了复合储能系统特性参数–风电功率平滑度的短期神经网络模型,并在此基础上综合考虑了复合储能系统的技术性能和经济性能,建立了反映复合储能系统特性参数–风电功率平滑度、复合储能系统成本特性的长期数学模型。最后,通过遗传算法对该模型的目标函数进行寻优,从而得到复合储能系统最佳的特性参数组合。算例分析表明所提出的方法是合理、有效的。展开更多
To solve the multi-class fault diagnosis tasks, decision tree support vector machine （DTSVM）, which combines SVM and decision tree using the concept of dichotomy, is proposed. Since the classification performance of...To solve the multi-class fault diagnosis tasks, decision tree support vector machine （DTSVM）, which combines SVM and decision tree using the concept of dichotomy, is proposed. Since the classification performance of DTSVM highly depends on its structure, to cluster the multi-classes with maximum distance between the clustering centers of the two sub-classes, genetic algorithm is introduced into the formation of decision tree, so that the most separable classes would be separated at each node of decisions tree. Numerical simulations conducted on three datasets compared with ＂one-against-all＂ and ＂one-against-one＂ demonstrate the proposed method has better performance and higher generalization ability than the two conventional methods.展开更多
Optimization design of hydraulic manifold blocks (HMB) is studied as acomplex solid spatial layout problem. Based on comprehensive research into structure features anddesign rules of HMB, an optimal mathematical model...Optimization design of hydraulic manifold blocks (HMB) is studied as acomplex solid spatial layout problem. Based on comprehensive research into structure features anddesign rules of HMB, an optimal mathematical model for this problem is presented. Usinghuman-computer cooperative genetic algorithm (GA) and its hybrid optitation strategies, integratedlayout and connection design schemes of HMB can be automatically optimized. An example is given totestify it.展开更多
文摘依据风电场复合储能系统的功能和工作特性,提出了一种复合储能系统(hybrid energy storage system,HESS)容量的优化配置方法,使其在满足平滑风电功率波动等技术性能的同时,还能满足系统的经济性要求。首先,提出了一种能够定量反映功率曲线平滑度的判据标准。其次,建立了复合储能系统特性参数–风电功率平滑度的短期神经网络模型,并在此基础上综合考虑了复合储能系统的技术性能和经济性能,建立了反映复合储能系统特性参数–风电功率平滑度、复合储能系统成本特性的长期数学模型。最后,通过遗传算法对该模型的目标函数进行寻优,从而得到复合储能系统最佳的特性参数组合。算例分析表明所提出的方法是合理、有效的。
基金supported by the National Natural Science Foundation of China (60604021 60874054)
文摘To solve the multi-class fault diagnosis tasks, decision tree support vector machine （DTSVM）, which combines SVM and decision tree using the concept of dichotomy, is proposed. Since the classification performance of DTSVM highly depends on its structure, to cluster the multi-classes with maximum distance between the clustering centers of the two sub-classes, genetic algorithm is introduced into the formation of decision tree, so that the most separable classes would be separated at each node of decisions tree. Numerical simulations conducted on three datasets compared with ＂one-against-all＂ and ＂one-against-one＂ demonstrate the proposed method has better performance and higher generalization ability than the two conventional methods.
基金This project is supported by Provincial ScienceTechnology Foundation of Liaoning (No. 20022132)
文摘Optimization design of hydraulic manifold blocks (HMB) is studied as acomplex solid spatial layout problem. Based on comprehensive research into structure features anddesign rules of HMB, an optimal mathematical model for this problem is presented. Usinghuman-computer cooperative genetic algorithm (GA) and its hybrid optitation strategies, integratedlayout and connection design schemes of HMB can be automatically optimized. An example is given totestify it.
