A new conjugate gradient approach for coordinating PSS parameters design of multi-machine power system is proposed. 提出一种多机电力系统PSS参数协调优化的共轭梯度法。
In this approach, the sum of generator speed is utilized as the objective function. Trajectory sensitivity analysis is performed to obtain the sensitivity of the objective function to the controller parameters and conjugate gradient method is adopted to optimize the parameters using the sensitivity obtained. 这种方法以表征系统机电振荡模式的发电机转子角速度作为优化的目标函数,使用轨迹灵敏度技术计算目标函数对阻尼控制器参数的灵敏度,并采用共轭梯度法进行参数优化。
When the pertinent parameter involved in reliability definition complies with normal distribution, the conjugate prior of its distributing parameters(μ, h) is of normal-gamma distribution. 当可靠度特征量满足正态分布时,其分布参数(μ,h)的共轭型先验分布为正态伽玛分布。
From the formulas of the conjugate gradient, a similarity between a symmetric positive definite ( SPD) matrix A and a tridiagonal matrix B is obtained. The elements of the matrix B are determined by the parameters of the conjugate gradient. 本文从共轭梯度法的公式推导出对称正定阵A与三对角阵B的相似关系,B的元素由共轭梯度法的迭代参数确定。
In this paper, replacing orthogonal projection with conjugate projection, a type of generalized conjugate gradient method with parameters is given. It is used for nonlinear optimization with linear constraints. 本文以共轭类投影代替正交投影给出了一类带参数的广义共轭梯度投影法,适用于求解带线性约束的非线性最优化问题。
Conjugate gradients are used for calculating parameters and feedback for convergence. 网络还采用了负反馈提高学习收敛速度,网络参数采用梯度法结合遗传算法寻优确定。
A hybrid algorithm is proposed according to the character of FNN structure, using the recursive least squared method to optimize the linear parameters and conjugate gradient algorithm to tune the nonlinear parameters. 在对模糊神经网络的参数学习算法总结归纳和性能分析的基础上,依据所研究的变结构模糊神经网络的结构特点,提出了参数混合学习算法。
The three-term conjugate gradient method combining conjugate gradient parameters FR, PR, HS is also given. 同时给出结合FR、PR、HS共轭梯度参数的三项共轭梯度算法。
Genetic algorithm and conjugate gradient method were employed to optimize the model parameters. 利用遗传算法结合共轭梯度法对模型参数进行优化。
We use conjugate gradient method to improve the learning speed of the premise parameters. Fourthly, combines the status of emergency management at home and abroad, establishes principles of early warning emergency system, systemically designs the overall block diagram of early warning system for emergency management. 用共轭梯度法提高其前提参数的学习速度。结合国内外应急管理的现状,制定了预警应急体系的工作原则,系统设计了预警应急管理体系的总体框图。
The model adopts the conjugate gradient descent algorithm, which is optimized by the momentum and adaptive learning rate. The initialization of parameters of the WNN is also analyzed in the paper. 该模型采用最速梯度下降算法,用动量法和自适应学习速率相结合来优化,并对小波神经网络参数进行了初始化研究。
Rotor profile conjugate algorithm and space curved surface model are established based on coordinate transformation theory. Secondly, the key performance parameters are calculated based on space curved surface model of the rotors. 以坐标变换理论为基础,建立了转子端面共轭算法以及空间曲面模型。其次,以转子空间曲面模型为基础,进行了转子性能参数的计算。
In contrast to solved results of Newton, conjugate gradient reconstructs defect parameters more accurately and the reconstruction rate can be above 90%. 与牛顿迭代算法的求解结果进行对比分析,共轭梯度迭代算法更准确的重构了缺陷的几何参数,其重构效率可以达到90%以上。
This paper designs an adaptive PID controller and uses the improved conjugate gradient to improve the PID controller parameters on-line. 本文设计了一种自适应PID控制器,采用改进共轭梯度算法对PID控制器参数进行在线整定。
Based on genetic algorithm and conjugate gradient, a method for optimizing the model parameters was developed in this paper. 本论文的数据拟合采用基于遗传算法和共轭梯度法编写的参数最优化程序。
Suppose the sudden failure time follow the Weibull distribution with two parameters; then, the reliability of the system subject to only the sudden failure is modeled whose parameters is estimated real-timely by Bayesian estimation method with the conjugate prior distribution of two parameters. 采用两参数weibull分布描述系统突然失效时间的分布,使用贝叶斯估计方法实现可靠度中参数的实时估计。
So we can using the algorithm to estimate the parameters in ARMA model. Fourthly, we make up another new kind of conjugate gradient method which contains three parameters and the application of it in the non-linear time series ARMA model. 再构建了一种三参数的共轭梯度法及其在非线性时间序列ARMA模型的参数估计中的应用。