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基于分数阶电路模型的电动汽车微电网分数阶控制调频策略

更新时间:2020-10-27 19:50:37 大小:690K 上传用户:zhengdai查看TA发布的资源 标签:电动汽车电网 下载积分:1分 评价赚积分 (如何评价?) 打赏 收藏 评论(0) 举报

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文章引入分数阶建模理论,对电动汽车充放电电路的电感电容进行了分数阶等效建模。为了在负荷扰动时提高充放电系统抗扰动性能,提升频率振荡的快速收敛特性和稳定性,在换流器的电流前馈解耦控制中引入分数阶PI控制策略,进行分数阶控制参数的优化,基于MATLAB/Simulink仿真平台搭建了电动汽车充放电分数阶模型。通过算例验证表明,文章所提出的电动汽车分数阶控制模型,在实现微电网与电动汽车双向功率交互的同时,实现了对微电网频率的调节,提高了系统的鲁棒性;控制参数λ的调节,有助于提高系统频率振荡的收敛速度。

The fractional modeling theory is introduced to model the inductance and capacitance of electric vehicle charge-discharge circuit. In order to improve the anti-disturbance performance of charge-discharge system and improve the fast convergence characteristics and stability of frequency oscillation under load disturbance, fractional PI control strategy is introduced into the current feedforward decoupling control of converter. The fractional control parameters are optimized. The fractional model of charge and discharge of electric vehicle is built based on MATLAB/Simulink simulation platform. the example shows that the fractional control model of electric vehicle proposed in this paper realizes the bidirectional power interaction between microgrid and electric vehicle. At the same time, the frequency regulation of the microgrid is realized, and the robustness of the system is improved. Moreover, the adjustment of the control parameter λ is helpful to improve the convergence speed of the frequency oscillation of the system.

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基于分数阶电路模型的电动汽车微电网分数阶控制调频策略.pdf 690K

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