在新型全电推进船舶的发电汽轮机转速控制中,传统控制算法存在调节时间长、抗扰能力差和鲁棒性不足等问题。鉴于此,本文借鉴了“小误差大增益,大误差小增益”的思想,利用对数函数和双曲正切函数对原有的fal函数进行改进,提出一种基于改进fal函数的汽轮机转速自抗扰控制器。仿真验证表明,与线性自抗扰控制器和PID控制器相比,改进后的自抗扰控制器在汽轮机甩不同负荷时能更好地抑制转速飞升。此外,在油动机油压异常情况下,也展现出了更强的鲁棒性。
Traditional control algorithms have issues such as long regulation time, poor disturbance rejection, and low robustness in the power generation turbine regulation and control of new all-electric propulsion ships. In response to these is- sues, this paper draws on the concept of "large gain for small errors, small gain for large errors," and improves the original fal function using logarithmic functions and hyperbolic tangent functions, proposing a turbine speed controller based on the im- proved fal function. Simulation results demonstrate that, compared with linear auto-disturbance rejection controllers and PID controllers, the improved active disturbance rejection controller not only better suppresses the speed surge when the turbine is unloaded under different loads but also demonstrates stronger robustness under abnormal oil pressure conditions of the oil cylinder.
2025,47(13): 107-112 收稿日期:2024-7-16
DOI:10.3404/j.issn.1672-7649.2025.13.019
分类号:TP273
作者简介:周毓金(1998-),男,硕士研究生,研究方向为热力系统监测与控制
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