检索范围:
排序: 展示方式:
Time-varying formation tracking for uncertain second-order nonlinearmulti-agent systems
Mao-peng RAN, Li-hua XIE, Jun-cheng LI
《信息与电子工程前沿(英文)》 2019年 第20卷 第1期 页码 76-87 doi: 10.1631/FITEE.1800557
Our study is concerned with the time-varying formation tracking problem for second-order multi-agent systems that are subject to unknown nonlinear dynamics and external disturbance, and the states of the followers form a predefined time-varying formation while tracking the state of the leader. The total uncertainty lumps the unknown nonlinear dynamics and the external disturbance, and is regarded as an extended state of the agent. To estimate the total uncertainty, we design an extended state observer (ESO). Then we propose a novel ESO based time-varying formation tracking protocol. It is proved that, under the proposed protocol, the ESO estimation error and the time-varying formation tracking error can be made arbitrarily small. An application to the target enclosing problem for multiple unmanned aerial vehicles (UAVs) verifies the effectiveness and superiority of the proposed approach.
关键词: Multi-agent system Time-varying formation Formation tracking Nonlinear dynamics Extended state observer (ESO)
一种用于交流永磁同步电机位置控制的带有扩展状态观测器的快速积分滑模控制器 Research Articles
姜俊峰1,2,周晓军1,2,赵维3,李伟3,张文东4
《信息与电子工程前沿(英文)》 2020年 第21卷 第8期 页码 1119-1266 doi: 10.1631/FITEE.1900298
针对目标跟踪的两种基于最大期望算法测量值偏差估计过程的性能分析 None
Zhi-hua LU, Meng-yao ZHU, Qing-wei YE, Yu ZHOU
《信息与电子工程前沿(英文)》 2018年 第19卷 第9期 页码 1151-1165 doi: 10.1631/FITEE.1800214
基于多模型融合驱动的锂离子动力电池荷电状态和容量联合估计研究 Article
熊瑞, 王榘, Weixiang Shen, 田金鹏, 穆浩
《工程(英文)》 2021年 第7卷 第10期 页码 1471-1484 doi: 10.1016/j.eng.2020.10.022
锂离子动力电池(LIB)已成为各种电动载运工具的首选电源系统,包括电动汽车、电动轮船、电动火车和电动飞机。在全气候全寿命周期运行的电动载运工具中,锂离子电池的能量管理需要实时准确估计电池的荷电状态(SOC)和容量。本文提出了一种多阶段模型融合算法可协同估计SOC和容量。首先,基于正态分布假设,利用模型在不同老化状态下的残差均值和方差计算权重,建立参数稳定的融合模型。其次,将具有预测性的微分增益引入比例-积分观测器(PIO)以提高收敛速度。再次,将多阶段融合模型与比例-积分-微分观测器(PIDO)结合,建立了一种融合算法,可实现复杂应用环境下SOC和容量的协同估计。然后,讨论了融合算法的收敛性和抗噪性能。最后,搭建硬件在环平台,验证了融合算法的性能。不同老化状态和温度下的验证结果表明,融合算法可以实现SOC和容量的高精度协同估计,误差分别在2%和3.3%以内。
关键词: 荷电状态 容量估计 模型融合 比例-积分-微分观测器 硬件在环
Thermo-elastic extended meshfree method for fracture without crack tip enrichment
A. ASADPOUR
《结构与土木工程前沿(英文)》 2015年 第9卷 第4期 页码 441-447 doi: 10.1007/s11709-015-0319-5
Concurrent fatigue crack growth simulation using extended finite element method
Zizi LU, Yongming LIU,
《结构与土木工程前沿(英文)》 2010年 第4卷 第3期 页码 339-347 doi: 10.1007/s11709-010-0078-2
关键词: small time scale model extended finite element method (X-FEM) crack growth multiaxial
M. R. AKBARI,D. D. GANJI,M. NIMAFAR,A. R. AHMADI
《机械工程前沿(英文)》 2014年 第9卷 第4期 页码 390-401 doi: 10.1007/s11465-014-0313-y
In this paper, we aim to promote the capability of solving two complicated nonlinear differential equations: 1) Static analysis of the structure with variable cross section areas and materials with slope-deflection method; 2) the problem of one dimensional heat transfer with a logarithmic various surface A(x) and a logarithmic various heat generation G(x) with a simple and innovative approach entitled “Akbari-Ganji’s method” (AGM). Comparisons are made between AGM and numerical method, the results of which reveal that this method is very effective and simple and can be applied for other nonlinear problems. It is significant that there are some valuable advantages in this method and also most of the differential equations sets can be answered in this manner while in other methods there is no guarantee to obtain the good results up to now. Brief excellences of this method compared to other approaches are as follows: 1) Differential equations can be solved directly by this method; 2) without any dimensionless procedure, equation(s) can be solved; 3) it is not necessary to convert variables into new ones. According to the aforementioned assertions which are proved in this case study, the process of solving nonlinear equation(s) is very easy and convenient in comparison to other methods.
关键词: AGM extended surface heat transfer slope-deflection method
基于扩展干扰观测器的电液执行器的模糊阻抗控制 Regular Papers-Research Articles
Ming-jie LI, Jian-hua WEI, Jin-hui FANG, Wen-zhuo SHI, Kai GUO
《信息与电子工程前沿(英文)》 2019年 第20卷 第9期 页码 1221-1233 doi: 10.1631/FITEE.1800155
F. BENCHABANE, A. TITAOUINE, O. BENNIS, K. YAHIA, D. TAIBI, A. GUETTAF
《能源前沿(英文)》 2012年 第6卷 第3期 页码 247-254 doi: 10.1007/s11708-012-0190-1
关键词: direct torque control (DTC) sensorless control extended Kalman filter (EKF) permanent magnet synchronous motor (PMSM) boost-rectifier
Uncertainty propagation analysis by an extended sparse grid technique
X. Y. JIA, C. JIANG, C. M. FU, B. Y. NI, C. S. WANG, M. H. PING
《机械工程前沿(英文)》 2019年 第14卷 第1期 页码 33-46 doi: 10.1007/s11465-018-0514-x
关键词: uncertainty propagation analysis extended sparse grid maximum entropy principle extended Gauss integration Rosenblatt transformation high-order moments analysis
An extended thermo-mechanically coupled algorithm for simulation of superelasticity and shape memory
S. HASHEMI,H. AHMADIAN,S. MOHAMMADI
《结构与土木工程前沿(英文)》 2015年 第9卷 第4期 页码 466-477 doi: 10.1007/s11709-015-0300-3
关键词: shape memory alloy thermo-mechanical coupling superplasticity shape memory effect
《环境科学与工程前沿(英文)》 2022年 第16卷 第9期 doi: 10.1007/s11783-022-1547-2
• DPAA sorption followed pseudo-secondary and intra-particle diffusion models.
关键词: Diphenylarsinic acid (DPAA) Sorption Magnetite Siderite Sequential extraction EXAFS
Assessment of a fuzzy logic based MRAS observer used in a photovoltaic array supplied AC drive
Bhavnesh KUMAR, Yogesh K CHAUHAN, Vivek SHRIVASTAVA
《能源前沿(英文)》 2014年 第8卷 第1期 页码 81-89 doi: 10.1007/s11708-014-0295-9
关键词: induction motor drive fuzzy logic (FL) control model reference adaptive system (MRAS) photovoltaic (PV) array vector control
输入时滞分数阶(0<α<1)奇异系统的观测器控制 Research Article
李丙新1,2,赵相飞1,2,张雪峰3,赵新1,2,4
《信息与电子工程前沿(英文)》 2022年 第23卷 第12期 页码 1862-1870 doi: 10.1631/FITEE.2200294
Hassan HAJABDOLLAHI, Mohammad SHAFIEY DEHAJ, Babak MASOUMPOUR, Mohammad ATAEIZADEH
《能源前沿(英文)》 2022年 第16卷 第5期 页码 862-875 doi: 10.1007/s11708-022-0839-3
关键词: constructal theory extended surface effectiveness total heat transfer area multi-objective optimization
标题 作者 时间 类型 操作
Time-varying formation tracking for uncertain second-order nonlinearmulti-agent systems
Mao-peng RAN, Li-hua XIE, Jun-cheng LI
期刊论文
Concurrent fatigue crack growth simulation using extended finite element method
Zizi LU, Yongming LIU,
期刊论文
Significant progress in solution of nonlinear equations at displacement of structure and heat transfer extended
M. R. AKBARI,D. D. GANJI,M. NIMAFAR,A. R. AHMADI
期刊论文
Sensorless direct torque control for salient-pole PMSM based on extended Kalman filter fed by AC/DC/AC
F. BENCHABANE, A. TITAOUINE, O. BENNIS, K. YAHIA, D. TAIBI, A. GUETTAF
期刊论文
Uncertainty propagation analysis by an extended sparse grid technique
X. Y. JIA, C. JIANG, C. M. FU, B. Y. NI, C. S. WANG, M. H. PING
期刊论文
An extended thermo-mechanically coupled algorithm for simulation of superelasticity and shape memory
S. HASHEMI,H. AHMADIAN,S. MOHAMMADI
期刊论文
acid on natural magnetite and siderite: Evidence from sorption kinetics, sequential extraction and extended
期刊论文
Assessment of a fuzzy logic based MRAS observer used in a photovoltaic array supplied AC drive
Bhavnesh KUMAR, Yogesh K CHAUHAN, Vivek SHRIVASTAVA
期刊论文