2018 UKACC 12th International Conference on Control (CONTROL)最新文献_第3页

Nonlinear Design and Optimisation of a Vibration Energy Harvester 振动能量采集器的非线性设计与优化

2018 UKACC 12th International Conference on Control (CONTROL) Pub Date : 2018-09-01 DOI: 10.1109/CONTROL.2018.8516821

U. Diala, R. Gunawardena, Yunpeng Zhu, Z. Lang

{"title":"Nonlinear Design and Optimisation of a Vibration Energy Harvester","authors":"U. Diala, R. Gunawardena, Yunpeng Zhu, Z. Lang","doi":"10.1109/CONTROL.2018.8516821","DOIUrl":"https://doi.org/10.1109/CONTROL.2018.8516821","url":null,"abstract":"Nonlinear behavior has been exploited over the last decade towards improving the efficiency of most engineering systems. The effect of nonlinearities on a vibration energy harvester (VEH) has been widely studied. It has been reported in literature that a cubic damping nonlinearity extends the dynamic range (power/energy level) of a VEH system. It has also been widely shown that the operational bandwidth of a VEH system can be increased using a nonlinear hardening spring. As most energy harvesters have a maximum throw limited by the physical enclosure of the device, it is imperative to improve the operational conditions of the harvester within this limitation. This paper investigates the effects of a nonlinear hardening spring with cubic damping on a VEH system while assuming no limitation to the maximum throw (Practical VEH systems are constrained to a maximum throw and this is considered in a subsequent study). A frequency-based approach known as Output Frequency Response Function (OFRF) determined using the Associated Linear Equations (ALEs) of the nonlinear system model is employed. The OFRF polynomial is a representation of the actual system model hence used for the nonlinear VEH analysis and design. Based on the OFRF, optimal parameter values are designed to achieve any desired level of energy for the VEH.","PeriodicalId":266112,"journal":{"name":"2018 UKACC 12th International Conference on Control (CONTROL)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128871314","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

ICLOCS2: Try this Optimal Control Problem Solver Before you Try the Rest ICLOCS2:在你尝试其他方法之前先尝试这个最优控制问题解决器

2018 UKACC 12th International Conference on Control (CONTROL) Pub Date : 2018-09-01 DOI: 10.1109/CONTROL.2018.8516795

Yuanbo Nie, Omar J. Faqir, E. Kerrigan

引用次数: 33

Swarm Robotics for Object Transportation 用于物体运输的蜂群机器人

2018 UKACC 12th International Conference on Control (CONTROL) Pub Date : 2018-09-01 DOI: 10.1109/CONTROL.2018.8516829

J. Farrugia, S. Fabri

引用次数: 8

Optimal Sensor Placement for Large Scale Systems Using Boosted Clustering 基于增强聚类的大型系统传感器优化配置

2018 UKACC 12th International Conference on Control (CONTROL) Pub Date : 2018-09-01 DOI: 10.1109/CONTROL.2018.8516865

Satheesh K. Perepu

引用次数: 0

A Data-Driven Framework for Identifying Tropical Wetland Model 热带湿地模式识别的数据驱动框架

2018 UKACC 12th International Conference on Control (CONTROL) Pub Date : 2018-09-01 DOI: 10.1109/CONTROL.2018.8516826

Angesh Anupam, D. Wilton, S. Anderson, V. Kadirkamanathan

引用次数: 3

Decentralized Robust Model Predictive Control for Multi-Input Linear Systems 多输入线性系统的分散鲁棒模型预测控制

2018 UKACC 12th International Conference on Control (CONTROL) Pub Date : 2018-09-01 DOI: 10.1109/CONTROL.2018.8516722

Saeed Adelipour, M. Haeri, G. Pannocchia

引用次数: 4

The Limits of LoRaWAN in Event-Triggered Wireless Networked Control Systems LoRaWAN在事件触发无线网络控制系统中的局限性

2018 UKACC 12th International Conference on Control (CONTROL) Pub Date : 2018-09-01 DOI: 10.1109/CONTROL.2018.8516774

Ivana Tomić, Laksh Bhatia, Michael J. Breza, J. Mccann

{"title":"The Limits of LoRaWAN in Event-Triggered Wireless Networked Control Systems","authors":"Ivana Tomić, Laksh Bhatia, Michael J. Breza, J. Mccann","doi":"10.1109/CONTROL.2018.8516774","DOIUrl":"https://doi.org/10.1109/CONTROL.2018.8516774","url":null,"abstract":"Wireless sensors and actuators offer benefits to large industrial control systems. The absence of wires for communication reduces the deployment cost, maintenance effort, and provides greater flexibility for sensor and actuator location and system architecture. These benefits come at a cost of a high probability of communication delay or message loss due to the unreliability of radio-based communication. This unreliability poses a challenge to contemporary control systems that are designed with the assumption of instantaneous and reliable communication. Wireless sensors and actuators create a paradigm shift in engineering energy-efficient control schemes coupled with robust communication schemes that can maintain system stability in the face of unreliable communication. This paper investigates the feasibility of using the low-power wide-area communication protocol LoRaWAN with an event-triggered control scheme through modelling in Matlab. We show that LoRaWAN is capable of meeting the maximum delay and message loss requirements of an event-triggered controller for certain classes of applications. We also expose the limitation in the use of LoRaWAN when message size or communication range requirements increase or the underlying physical system is exposed to significant external disturbances.","PeriodicalId":266112,"journal":{"name":"2018 UKACC 12th International Conference on Control (CONTROL)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116687976","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 8

Activity Recognition from Binary Data 基于二进制数据的活动识别

2018 UKACC 12th International Conference on Control (CONTROL) Pub Date : 2018-09-01 DOI: 10.1109/CONTROL.2018.8516844

R. Auber, M. Pouliquen, E. Pigeon, P. Chapon, S. Moussay

引用次数: 5

Nonlinearity Detection in Dynamical Systems 动力系统非线性检测

2018 UKACC 12th International Conference on Control (CONTROL) Pub Date : 2018-09-01 DOI: 10.1109/CONTROL.2018.8516892

Callum Moseley, T. Shenton, B. Neaves, P. Paoletti, P. Fulcher

{"title":"Nonlinearity Detection in Dynamical Systems","authors":"Callum Moseley, T. Shenton, B. Neaves, P. Paoletti, P. Fulcher","doi":"10.1109/CONTROL.2018.8516892","DOIUrl":"https://doi.org/10.1109/CONTROL.2018.8516892","url":null,"abstract":"A method to detect the presence of nonlinearity in dynamical systems is proposed. The method quantifies nonlinearity as a statistical variance from a system's response when linearised. For a given input signal, bounds are defined by an F-score statistical significance test. If the variance of the system's output compared to an ideal linear response exceeds those bounds, linearity is very unlikely and cannot be assumed for the system. The proposed method has use in selecting model structures for system identification and for controller design. The effectiveness of the proposed technique is demonstrated on three single-input single-output (SISO) benchmark systems: a linear spring-damper system, a nonlinear pendulum and nonlinear Duffing oscillator. Each model is driven with inputs of varying amplitude, showing how the effect of nonlinearity in the system dynamics increases as the input amplitude increases. This also demonstrates that, for the same input signals, some of the systems' responses behave more nonlinearly than others. The method is also applied to a published multiple-input-multiple-output (MIMO) nonlinear diesel engine air-path model to show relevance for real applications.","PeriodicalId":266112,"journal":{"name":"2018 UKACC 12th International Conference on Control (CONTROL)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128064751","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Cooperative Distributed LQR Control for Longitudinal Flight of a Formation of Non-Identical Low-Speed Experimental UAV's 非同速低速实验无人机编队纵向飞行的协同分布式LQR控制

2018 UKACC 12th International Conference on Control (CONTROL) Pub Date : 2018-09-01 DOI: 10.1109/CONTROL.2018.8516853

E. Vlahakis, E. Milonidis, G. Halikias

{"title":"Cooperative Distributed LQR Control for Longitudinal Flight of a Formation of Non-Identical Low-Speed Experimental UAV's","authors":"E. Vlahakis, E. Milonidis, G. Halikias","doi":"10.1109/CONTROL.2018.8516853","DOIUrl":"https://doi.org/10.1109/CONTROL.2018.8516853","url":null,"abstract":"In this paper, an established distributed LQR control methodology applied to identical linear systems is extended to control arbitrary formations of non-identical UAV's. The nonlinear model of a low-speed experimental UAV known as X-RAE1 is utilized for simulation purposes. The formation is composed of four dynamically decoupled X-RAE1 which differ in their masses and their products of inertia about the xz plane. In order to design linear controllers the nonlinear models are linearized for horizontal flight conditions at constant velocity. State-feedback, input and similarity transformations are applied to solve model-matching type problems and compensate for the mismatch in the linearized models due to mass and symmetry discrepancies among the X-RAE1 models. It is shown that the method is based on the controllability indices of the linearized models. Distributed LQR control employed in networks of identical linear systems is appropriately adjusted and applied to the formation of the nonidentical UAV's. The applicability of the approach is illustrated via numerous simulation results.","PeriodicalId":266112,"journal":{"name":"2018 UKACC 12th International Conference on Control (CONTROL)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125996013","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2