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Comparing the Performance of Optimal PID and Optimal Fractional-Order PID Controllers Applied to the Nonlinear Boost Converter

机译:非线性Boost变换器最优PID与分数阶PID控制器的性能比较。

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This paper proposes the application of fractional-order PID (FOPID) controller for output voltage control of boost converters. For this purpose, parameters of the FOPID controller are calculated such that the Integral Absolute Error (IAE) of the variations of the output voltage is minimized. Since the search space is very large in dealing with such an optimization problem, the Artificial Bee Colony (ABC) algorithm is used for optimal tuning the parameters of the FOPID controller. Simulations, which are performed by using the complete non-minimum phase model of the boost converter, confirm the fact that the proposed optimal FOPID controller can improve the transient response of the feedback system by using a considerably smaller control effort (i.e., less on-off switches) compared to the optimal PID controller. Moreover, it is shown that the proposed FOPID controller enhances the robustness of the boost converter to variations in the input voltage.
机译:本文提出了分数阶PID(FOPID)控制器在升压转换器的输出电压控制中的应用。为此,计算FOPID控制器的参数,以使输出电压变化的积分绝对误差(IAE)最小。由于搜索空间在处理此类优化问题时非常大,因此使用人工蜂群(ABC)算法来优化FOPID控制器的参数。通过使用升压转换器的完整非最小相位模型进行的仿真证实了以下事实:建议的最佳FOPID控制器可以通过使用相当小的控制工作量(即,更少的导通时间)来改善反馈系统的瞬态响应。与最佳PID控制器相比)。而且,表明所提出的FOPID控制器提高了升压转换器对输入电压变化的鲁棒性。

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