检索结果-南通市图书馆

Optimal Estimation and Tracking Control for Variable-speed Wind Turbine with PMSG

Journal of Modern Power Systems and Clean Energy 2020年第1期8卷 159-167页

作者： Farzad Bakhtiari jalal nazarzadeh Shahed University TehranIran

Designing an optimal tracking controller and system observer is a nonlinear problem in the variable-speed wind energy conversion system(WECS).In this paper,an adjusted feedforward and feedback optimal controller with extended Kalman filter(EKF)is introduced to estimate and control the permanent magnet synchronous generator(PMSG)for the maximum power point tracking(MPPT)with several disturbances of the wind *** augmented model of wind turbine and PMSG is expanded,and then the parameters of the optimal controller and estimator are *** dynamic stability of the closed-loop system with feedback-feedforward controller(FFC),EKF and speed controller are *** compare the dynamic performance of EKF and FFC with the conventional controllers,numerical results are demonstrated with the disturbances of the wind speed and faults in power grid.

关键词： Permanent magnet synchronous generator(PMSG) maximum power point tracking(MPPT) extended Kalman filter(EKF) optimal tracking control

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

An online estimator for rotor resistance in vector drives of induction machines based on Walsh functions

引用

Control Theory and Technology 2014年第4期12卷 402-412页

作者： Hamidreza SHIRAZI jalal nazarzadeh Engineering Faculty Shahed University

In a modern electrical driver, rotor field oriented control an appropriate transient response. In this method, the space （RFOC） method has been used to achieve a good performance and vector of the rotor flux comes handy by the rotor resistance value. The rotor resistance is one of the important parameters which varies according to motor speed and room temperature alteration. In this paper, a new on-line estimation method is utilized to obtain the rotor resistance by using Walsh functions domain. The Walsh functions are one of the most applicable functions in piecewise constant basis functions （PCBF） to solve dynamic equations. On the other hand, an integral operational matrix is used to simplify the process and speed of the computation algorithm. The simulations results show that the proposed method is capable of solving the dynamic equations in an electrical machine on a time interval which robustly estimates the rotor resistance in contrast with injection noises.

关键词： Vector control Walsh functions Operational matrix Rotor resistance estimation

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Hybrid extended Fourier series for optimal control of nonlinear algebraic dynamical systems

引用

控制理论与应用（英文版） 2011年第4期9卷 487-492页

作者： jalal nazarzadeh Hamidreza RADMANESH Department of Electrical Engineering Shahed University

The paper introduces a new method for finding optimal control of algebraic dynamic systems. The structure of algebraic dynamical systems is nonlinear with quadratic and bilinear terms. A new hybrid extended Fourier series is introduced, and state and control variables of the system are expanded by this series. Moreover, properties of new series are presented, and integration and product operational matrices are obtained. Using operational matrices, optimal control of the systems is converted to a set of simultaneous nonlinear algebraic relations. An illustrative example is included to compare our results with those in the literature.

关键词： Bilinear systems Hybrid extended Fourier series Nonlinear algebraic dynamic systems Quadratic systems Optimal control

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：