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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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铰接薄壳的后屈曲分析
基于ANSYS分析平台的铰接薄壳的后屈曲分析--APDL(Post-buckling analysis of articulated thin shells based on ANSYS analysis platform--APDL)
- 2020-06-16 20:00:01下载
- 积分：1
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谱分析
两个基于ANSYS平台的谱分析例子的命令流(Two command streams based on ANSYS platform for spectrum analysis)
- 2020-06-16 19:20:03下载
- 积分：1
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backstepping
说明： 针对带储能的光伏系统出力不稳定问题，基于储能变流器提出了一种带有灰色补偿的Back-stepping控制方法，以实现对并网点上层规划层面有功功率P和无功功率Q指令的跟踪控制，同时保证并网点电压的 稳定。(Aiming at the problem of output instability of photovoltaic system with energy storage, a back stepping control method with gray compensation is proposed based on energy storage converter to realize the tracking control of active power P and reactive power Q command at the upper planning level of the parallel network, and to ensure the stability of the voltage of the parallel network.)
- 2020-03-08 20:17:53下载
- 积分：1
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zhihuan
单相半桥式跟踪PWM逆变器仿真，电流滞环跟踪控制(Single phase half bridge tracking PWM inverter simulation, current hysteresis tracking control.)
- 2018-04-05 21:15:09下载
- 积分：1
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IGBT逆变器采用SPWM技术power_3level
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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CDM GTN umat
说明： 混凝土的弹塑性损伤问题，可以很好解决弹塑性损伤问题(The elastoplastic damage of concrete can be solved well)
- 2020-12-30 13:19:00下载
- 积分：1
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自适应轨迹跟踪算法
自适应（ self-adaptive）是指处理和分析过程中,根据处理数据的数据特征自动调整处理方法、处理顺序、处理参数、边界条件或约束条件,使其与所处理数据的统计分布特征、结构特征相适应,以取得最佳的处理效果(Self-adaptive refers to the automatic adjustment of processing methods, processing sequence, processing parameters, boundary conditions or constraints according to the data characteristics in the process of processing and analysis, so as to adapt them to the statistical distribution characteristics and structural features of the processed data, so as to achieve the best processing effect.)
- 2019-03-12 10:37:54下载
- 积分：1
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power_statcom
用matlab动态无功补偿器statcom的仿真模型(Dynamic reactive power compensator statcom simulation mode)
- 2017-10-15 20:29:09下载
- 积分：1
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水轮机调速模型
说明： PID控制的水轮机调速器 simulink模型(Simlink Model of Hydraulic Turbine Governor Controlled by PID)
- 2019-05-18 16:18:03下载
- 积分：1
