林异凤,王润芝,李学民,等.基于改进自抗扰控制的低速柴油机转速控制[J].内燃机工程,2025,46(4):200-211.
基于改进自抗扰控制的低速柴油机转速控制
The Speed Control of a Low-Speed Diesel Engine Based on Modified Active Disturbance Rejection Control
DOI：10.13949/j.cnki.nrjgc.2025.04.021
关键词:低速柴油机  转速控制  自抗扰控制  非线性控制
Key Words:low-speed diesel engine  speed control  active disturbance rejection control  nonlinear control
基金项目:宿迁市科技计划项目（K202352）； 江苏省高等学校基础科学（自然科学）研究面上项目（24KJB470026）
作者单位E-mail
林异凤* 山西能源学院 电气与控制工程系，晋中 030604 linyf@sxie.edu.cn 
王润芝* 宿迁学院 机电工程学院，宿迁 223800 wangrunzhiyuqing@foxmail.com 
李学民 哈尔工程大学 动力与能源工程学院，哈尔滨150001 lxm@hrbeu.edu.cn 
李文辉 哈尔工程大学 动力与能源工程学院，哈尔滨150001 lwh@vip.163.com 
马修真 哈尔工程大学 动力与能源工程学院，哈尔滨150001 maxiuzhen@hrbeu.edu.cn 
摘要点击次数: 515
全文下载次数: 377
摘要:针对低速二冲程柴油机转速控制的特点，改进了现有的自抗扰控制（active disturbance rejection control， ADRC）策略，使之更适用于低速柴油机转速控制。在引入线性扩张状态观测器（linear extended state observer， LESO）对总扰动进行估计和补偿的前提下，为了减少柴油机固有转速波动对小误差时转速控制精度的影响，同时提高大误差时转速控制的快速性，提出了在误差绝对值小于1时采用线性误差反馈控制律，而误差绝对值大于1时采用“大误差、大增益”的非线性误差反馈控制律的策略，构建了改进的ADRC控制器。为了验证控制器，充分考虑了柴油机固有的转速波动，建立了能够体现循环转速波动的分缸平均值模型（mean value engine model， MVEM），并通过硬件在环（hardware-in-loop， HIL）测试验证了控制器性能。结果表明：改进的ADRC能够兼顾多项稳、动态性能指标，不但对柴油机转动惯量变化具有较好的鲁棒性且对控制器本身的参数变化不敏感。提出的控制器参数整定简单，对ADRC技术在低速柴油机的工程化应用方面具有较好的参考价值。
Abstract:Considering the speed control characteristics of a low-speed two-stroke marine diesel engine， a modified active disturbance rejection control （ADRC） strategy was proposed， which is more suitable for low-speed diesel engine speed control. In order to reduce the impact of inherent speed fluctuations in diesel engines under small error condition， and to reduce the recovery time under big error situation， a strategy combined with linear extended state observer （LESO） for estimating and compensating the total disturbance was designed for constructing an improved ADRC method， in which linear feedback control law （EFCL） was employed when the absolute value of the error was smaller than 1， while nonlinear EFCL with “large error， large gain” was used in the else condition. To verify the proposed method， a cylinder-by-cylinder mean value engine model （MVEM） that can embody the cyclic speed fluctuations was built for fully considering the inherent speed fluctuations of diesel engines. Based on the proposed engine model， the performance of the proposed controller was verified through a hardware-in-loop （HIL） testing platform. The results demonstrate that the improved ADRC can balance multiple static and dynamic performance indexes. The proposed controller not only has good robustness to changes in the rotational inertia of the diesel engine， but also is insensitive to variations in its own parameters. Moreover， it is easy to tune the control parameters， which is of great significance for the practical application of ADRC technique in low-speed two-stroke marine engines.
查看全文  HTML   查看/发表评论