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DE优化函数程序
大坝变形的精确预测对其安全评价方面发挥着重要作用。为了进一步提高大坝变形预测精度，提出了一种改进的灰狼算法优化支持向量机的预测模型。通过引入非线性收敛因子和采用动态加权策略，提升灰狼算法优化支持向量机惩罚因子和核函数参数的能力，并以优化的参数来建立支持向量机大坝变形预测模型。选取实例数据，在与布谷鸟算法、差分进化算法、粒子群算法、基本灰狼算法优化的支持向量机预测比较中，实验结果表明，改进的灰狼算法对支持向量机参数的优化是有效的，可以提高大坝变形预测精度。(Accurate prediction of dam deformation plays an important role in its safety evaluation. In order to further improve the prediction accuracy of dam deformation, an improved grey Wolf algorithm is proposed to optimize the prediction model of support vector machine. By introducing the nonlinear convergence factor and using the dynamic weighting strategy, the gray wolf algorithm is improved to optimize the capacity of the support vector machine penalty factor and the kernel parameter, and the support vector machine dam deformation prediction model is established with the optimized parameters. The experimental results show that the Improved Grey Wolf algorithm is effective for the optimization of support vector machine parameters, and it can improve the accuracy of the deformation prediction of the dam.)
- 2018-06-28 09:53:07下载
- 积分：1
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SOM
说明： 自组织映射神经网络，直接就可以流畅的运行出仿真效果图处理。(The self-organizing mapping neural network can directly run smoothly to process the simulation renderings.)
- 2020-04-24 14:10:00下载
- 积分：1
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complete
用于随机粗糙面建模的蒙特卡罗算法程序包含一维和二维算法(Monte Carlo algorithm for random rough surface modeling)
- 2020-11-07 10:59:48下载
- 积分：1
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IEEE33节点
说明： 采用simulink搭建IEEE标准33节点仿真模型及.m程序(IEEE standard 33 node simulation model)
- 2021-04-10 15:48:58下载
- 积分：1
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danjiwuqiongda
针对标准单机无穷大系统搭建模型实现暂态分析，其中含有故障模块和自动重合闸部分(For the single machine infinite bus system, the model is built to realize transient analysis, including fault module and automatic reclosing part)
- 2017-06-22 21:08:34下载
- 积分：1
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UDF
fluent教程（中文帮助+UDF完全使用手册）个人由英文文档翻译，仅供参考(Fluent tutorial (Chinese help +UDF complete manual) personal English translation of the document, for reference only.)
- 2020-10-20 09:47:24下载
- 积分：1
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三相三电平逆变器的两个相同电路进行建模power_3level
说明： 该模型是对50kW、380V、50Hz三相三电平逆变器的两个相同电路进行建模。IGBT逆变器采用SPWM技术，(8kHz载频)将直流电源从a +/-200Vdc源转换为220V AC, 50Hz。逆变器通过75kVA 220/380V变压器输入50kW电阻负载。变频器输出采用L-C滤波器滤除主要产生于8kHz开关频率倍数(Fh=n*8000 +/-k*50Hz)附近的谐波频率Fh。逆变器所需的12个逆变脉冲由PWM发生器块产生。该系统以恒定的调制指标在开环中工作。
电路1使用三电平桥块对逆变器进行建模。电路2使用独立的IGBTs和二极管块。用开/关延时块模拟死区，仅在电路1上应用。(It is easy for us)
- 2020-07-14 09:08:52下载
- 积分：1
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跳频系统仿真实例
实现调频仿真，用于系统组合使用，检测；可进一步用于各种调频的使用。(Realization of FM simulation)
- 2018-12-21 09:42:22下载
- 积分：1
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Tracking
固定翼无人机跟踪地面目标，速度范围25-50，离散式计算(target tracking by fixed-wing uav)
- 2019-03-20 18:55:50下载
- 积分：1
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三相永磁同步电机矢量控制建模与仿真
本文首先分析了永磁同步电机矢量控制的发展概况，然后从机电能量转换的角度出发，解释三相永磁同步电机的机电能量转换原理，推导拉格朗日运动方程。此外，列写出永磁同步电机在三相静止坐标系和dq坐标系下的数学模型。基于Simulink建立了转速电流双闭环矢量控制系统的仿真模型，通过对仿真结果分析，验证了永磁同步电机矢量控制系统性能的优越性。(This paper first analyzes the development of permanent magnet synchronous motor vector control, and then explains the electromechanical energy conversion principle of three-phase permanent magnet synchronous motor from the perspective of electromechanical energy conversion, and deduce the Lagrange motion equation. In addition, the mathematical model of permanent magnet synchronous motor (PMSM) in three phase stationary coordinate system and dq coordinate system is listed. Based on Simulink, a simulation model of speed and current double closed loop vector control system is established. By analyzing the simulation results, the performance of PMSM vector control system is verified.)
- 2018-03-27 17:09:35下载
- 积分：1
