Description: 析了变速恒频双馈风力发电系统的工作原理。结合风力机特性和双馈发电机特性，说明了变速恒频运行方式下的最优风能捕获策略，并介绍了风力发电系统的滑模变结构控制、自适应控制、鲁棒控制和人工神经网络控制。总结了变速恒频风力发电系统的发展趋势。-Analysis of a Variable Speed Constant Frequency Wind Power Generation System works. Combination of wind turbine characteristics and the characteristics of doubly-fed generator, variable speed constant frequency shows the optimal operating mode to capture wind energy strategy, and introduced wind power generation system with variable structure control, adaptive control, robust control and artificial neural networks control. Summarizes the VSCF wind power system trends. Platform: |
Size: 429056 |
Author:wuxing |
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Description: 研究了直驱风力发电机系统中永磁同步发电机定子参数变化时的鲁棒H∞控制问题.文中针对电流参数变化模型,提出一种不确定descriptor系统的输出反馈H∞控制方法 利用内模原理得到无静差转速鲁棒H∞控制器,以消除空气动力噪声对转速的影响 控制器的综合过程归结为一组线性矩阵不等式的求解问题.仿真结果表明,所提出的控制方法计算简单,具有较好的静、动态性能,扰动抑制效果明显,对定子参数在大范围的变化具有较强的鲁棒性.
-Studied the direct drive wind generator system permanent magnet synchronous generator stators robust H ∞ control problem when parameters change the text for the current model parameters, an uncertain descriptor system proposed output feedback H ∞ control methods . Internal use get no static modulus principle differential speed H ∞ controller to eliminate the effects of noise on the speed of the air force integrated process controller boils down to a set of linear matrix inequalities problem solving simulation results show that the proposed method of calculation. simple and has good static and dynamic performance, disturbance rejection obvious effect on the stator in a wide range of parameters has strong robustness. Platform: |
Size: 708608 |
Author:liu |
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Description: This paper describes a small wind generation system where neural network principles are applied for wind speed estimation and robust maximum wind power extraction control against potential drift of wind turbine power coefficient curve. The new control system will deliver maximum electric power to a customer with lightweight, high efficiency, and high reliability without mechanical sensors. A turbine directly driven permanent magnet synchronous generator (PMSG) is considered for the proposed small wind generation system in this paper. The new control system has been developed, analyzed and verified by simulation studies. Performance has then been uated in detail. Finally, the proposed method is also applied to a 15 kW variable speed cage induction machine wind generation (CIWG) system and the experimental results are presented. -This paper describes a small wind generation system where neural network principles are applied for wind speed estimation and robust maximum wind power extraction control against potential drift of wind turbine power coefficient curve. The new control system will deliver maximum electric power to a customer with lightweight, high efficiency, and high reliability without mechanical sensors. A turbine directly driven permanent magnet synchronous generator (PMSG) is considered for the proposed small wind generation system in this paper. The new control system has been developed, analyzed and verified by simulation studies. Performance has then been uated in detail. Finally, the proposed method is also applied to a 15 kW variable speed cage induction machine wind generation (CIWG) system and the experimental results are presented. Platform: |
Size: 691200 |
Author:shatha |
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Description: The permanent magnet synchronous motors (PMSM) are used as servo motor for precise
motion control and are used as generator to generate electrical energy driven by wind energy.
There is large variation in inertia due to varying load and parametric uncertainty in PMSM.
The design objective of this paper is to analytically determine the relative robust stability of
PMSM with parametric uncertainty using Kharitonov theorem and Routh stability criterion.
The conventional integral controller (IC) and two robust internal model controllers (IMCs) are
used for relative robust stability analysis of speed control of PMSM. The frequency domain
performance specifications like gain margin (GM) and phase margin (PM) are taken for
relative robust stability analysis, and the effect of controllers on time domain performance
specifications such as settling time (ST), rise time (RT) and overshoot (OS) is also studied. Platform: |
Size: 433670 |
Author:electronic |
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Search - robust control wind