双馈感应风力发电机组鲁棒自适应协同镇定控制研究

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振动与冲击 ›› 2019, Vol. 38 ›› Issue (14) : 210-215.

论文

吴忠强,李峰,杜春奇,张伟

作者信息 +

Robust adaptive cooperative stabilization control for a DFIG unit

Wu Zhongqiang, Li Feng, Du Chunqi, Zhang Wei

Author information +

文章历史 +

摘要

研究双馈感应风力发电机组在既有外部干扰又有结构参数不确定的情况下，基于Hamilton函数的自适应H∞协同镇定问题，使多机闭环系统能够全局稳定且输出同步。首先考虑双馈风电机组的非线性本质，建立双馈风电机组的Hamilton模型，采用预反馈将其表示为耗散Hamilton系统，再考虑既有外部干扰又有结构参数不确定的情况，设计一种输出反馈+自适应干扰抑制的多机同步控制器，使得风电机组非线性系统能够保持协同运行。该控制器不仅对发电机组非线性系统的参数摄动具有较强的自适应能力，而且对外部扰动具有很强的抑制能力。两机风电机组的仿真结果验证了控制器的有效性。

Abstract

The H∞ adaptive collaborative stabilization of a doubly fed induction generator (DFIG) was studied based on the Hamilton function, when there were external disturbances and parameter uncertainties, in order to realize the closed-loop global stability and output synchronization of the multi machine system.The nonlinear nature of the doubly-fed wind power generator was considered, the Hamilton model for the DFIG was built, and expressed as a dissipative Hamilton system by pre-feedback.Then, the external disturbances and parameter uncertainties were considered, and a controller performing the output feedback and synchronous adaptive interference suppression was designed, so that the wind generator units can keep synchronous running.The controller has the strong adaptive ability not only for the parameter perturbation of the nonlinear wind generator unit, but also for the restraint of the external disturbance.The effectiveness of the controller was tested by the simulations of two wind generator units.

导出引用

吴忠强,李峰,杜春奇,张伟 . 双馈感应风力发电机组鲁棒自适应协同镇定控制研究[J]. 振动与冲击, 2019, 38(14): 210-215

Wu Zhongqiang, Li Feng, Du Chunqi, Zhang Wei. Robust adaptive cooperative stabilization control for a DFIG unit[J]. Journal of Vibration and Shock, 2019, 38(14): 210-215

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