首页 > 最新文献

智能控制与自动化(英文)最新文献

英文 中文
Estimation of Decision Alternatives on the Basis of Interval Pairwise Comparison Matrices 基于区间两两比较矩阵的决策方案估计
Pub Date : 2016-05-03 DOI: 10.4236/ICA.2016.72005
N. Pankratova, N. Nedashkovskaya
This paper deals with the calculation of a vector of reliable weights of decision alternatives on the basis of interval pairwise comparison judgments of experts. These weights are used to construct the ranking of decision alternatives and to solve selection problems, problems of ratings construction, resources allocation problems, scenarios evaluation problems, and other decision making problems. A comparative analysis of several popular models, which calculate interval weights on the basis of interval pairwise comparison matrices (IPCMs), was performed. The features of these models when they are applied to IPCMs with different inconsistency levels were identified. An algorithm is proposed which contains the stages for analyzing and increasing the IPCM inconsistency, calculating normalized interval weights, and calculating the ranking of decision alternatives on the basis of the resulting interval weights. It was found that the property of weak order preservation usually allowed identifying order-related intransitive expert pairwise comparison judgments. The correction of these elements leads to the removal of contradictions in resulting weights and increases the accuracy and reliability of results.
本文研究了基于专家区间两两比较判断的决策方案可靠权重向量的计算。这些权重用于构建决策选项的排序,并用于解决选择问题、评级构建问题、资源分配问题、场景评估问题和其他决策问题。对基于区间两两比较矩阵(IPCMs)计算区间权重的几种常用模型进行了比较分析。确定了这些模型应用于不同不一致程度的ipcm时的特征。提出了一种包含分析和增加IPCM不一致性、计算归一化区间权值和根据区间权值计算决策方案排序的算法。研究发现,弱顺序保持特性通常允许识别与顺序相关的不及物专家两两比较判断。对这些因素的修正可以消除所得到的权重的矛盾,并提高结果的准确性和可靠性。
{"title":"Estimation of Decision Alternatives on the Basis of Interval Pairwise Comparison Matrices","authors":"N. Pankratova, N. Nedashkovskaya","doi":"10.4236/ICA.2016.72005","DOIUrl":"https://doi.org/10.4236/ICA.2016.72005","url":null,"abstract":"This paper deals with the calculation of a vector of reliable weights of decision \u0000alternatives on the basis of interval pairwise comparison judgments of experts. \u0000These weights are used to construct the ranking of decision alternatives and to \u0000solve selection problems, problems of ratings construction, resources allocation \u0000problems, scenarios evaluation problems, and other decision making problems. A \u0000comparative analysis of several popular models, which calculate interval \u0000weights on the basis of interval pairwise comparison matrices (IPCMs), was \u0000performed. The features of these models when they are applied to IPCMs with \u0000different inconsistency levels were identified. An algorithm is proposed which \u0000contains the stages for analyzing and increasing the IPCM inconsistency, \u0000calculating normalized interval weights, and calculating the ranking of \u0000decision alternatives on the basis of the resulting interval weights. It was \u0000found that the property of weak order preservation usually allowed identifying \u0000order-related intransitive expert pairwise comparison judgments. The correction \u0000of these elements leads to the removal of contradictions in resulting weights \u0000and increases the accuracy and reliability of results.","PeriodicalId":62904,"journal":{"name":"智能控制与自动化(英文)","volume":"07 1","pages":"39-54"},"PeriodicalIF":0.0,"publicationDate":"2016-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70626261","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: 7
An Intelligent Sensor Based System for Real Time Heart Rate Monitoring (HRM) 基于智能传感器的实时心率监测系统
Pub Date : 2016-05-03 DOI: 10.4236/ICA.2016.72006
N. Farin, S. M. Sharif, I. Mobin
A method and apparatus for monitoring heart rate of the heart using a wearable system is designed and implemented in this paper. A heart rate receives from heart beat signals and stores the data to a database and after a time period this method can determine an idle heart rate of the monitoring body. This idle heart rate is compared with the stored data and can determine the normal and abnormal heart rate variability. After the certain time period this system can detect the heart rate and also can send a signal to the user in time of abnormalities. Consequent estimations of heart rate variability are contrasted with this.
本文设计并实现了一种利用可穿戴系统监测心脏心率的方法和装置。心率接收来自心跳的信号并将数据存储到数据库中,经过一段时间后,该方法可以确定监测体的空闲心率。将此空闲心率与存储的数据进行比较,可以确定正常和异常心率变异性。在一定的时间段后,该系统可以检测心率,并在异常时向用户发送信号。随后对心率变异性的估计与此对比。
{"title":"An Intelligent Sensor Based System for Real Time Heart Rate Monitoring (HRM)","authors":"N. Farin, S. M. Sharif, I. Mobin","doi":"10.4236/ICA.2016.72006","DOIUrl":"https://doi.org/10.4236/ICA.2016.72006","url":null,"abstract":"A method and apparatus for monitoring heart rate of the heart using a wearable system is designed and implemented in this paper. A heart rate receives from heart beat signals and stores the data to a database and after a time period this method can determine an idle heart rate of the monitoring body. This idle heart rate is compared with the stored data and can determine the normal and abnormal heart rate variability. After the certain time period this system can detect the heart rate and also can send a signal to the user in time of abnormalities. Consequent estimations of heart rate variability are contrasted with this.","PeriodicalId":62904,"journal":{"name":"智能控制与自动化(英文)","volume":"07 1","pages":"55-62"},"PeriodicalIF":0.0,"publicationDate":"2016-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70625903","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: 25
Multi-Node Fault-Tolerant Two-Cell Real-Time S2A Network 多节点容错双cell实时S2A网络
Pub Date : 2016-05-03 DOI: 10.4236/ICA.2016.72004
Merna N. Abou Eita, Mostafa W. Hussein, A. A. Ibrahim, Shereen S. Abouelazayem, M. A. Morsi, E. Moustafa, Hassan H. Halawa, R. Daoud, H. Amer, H. Elsayed
This paper presents a novel fault-tolerant networked control system architecture consisting of two cells working in-line. This architecture is fault-tolerant at the level of the controllers as well as the sensors. Each cell is based on the sensor-to-actuator approach and has an additional supervisor node. It is proven, via analysis as well as OMNeT++ simulations that the production line succeeds in meeting all control system requirements with no dropped or over-delayed packets. A reliability analysis is then undertaken to quantitatively estimate the increase in reliability due to the introduction of fault-tolerance.
提出了一种由两个单元在线工作组成的容错网络控制系统结构。这种架构在控制器和传感器级别上都是容错的。每个单元都基于传感器到执行器的方法,并有一个额外的管理节点。通过分析和omnet++仿真证明,该生产线成功地满足了所有控制系统的要求,没有丢失或过延迟的数据包。然后进行可靠性分析,定量地估计由于引入容错而增加的可靠性。
{"title":"Multi-Node Fault-Tolerant Two-Cell Real-Time S2A Network","authors":"Merna N. Abou Eita, Mostafa W. Hussein, A. A. Ibrahim, Shereen S. Abouelazayem, M. A. Morsi, E. Moustafa, Hassan H. Halawa, R. Daoud, H. Amer, H. Elsayed","doi":"10.4236/ICA.2016.72004","DOIUrl":"https://doi.org/10.4236/ICA.2016.72004","url":null,"abstract":"This paper presents a novel fault-tolerant networked control system \u0000architecture consisting of two cells working in-line. This architecture is \u0000fault-tolerant at the level of the controllers as well as the sensors. Each \u0000cell is based on the sensor-to-actuator approach and has an additional supervisor \u0000node. It is proven, via analysis as well as OMNeT++ simulations that the \u0000production line succeeds in meeting all control system requirements with no \u0000dropped or over-delayed packets. A reliability analysis is then undertaken to \u0000quantitatively estimate the increase in reliability due to the introduction of \u0000fault-tolerance.","PeriodicalId":62904,"journal":{"name":"智能控制与自动化(英文)","volume":"07 1","pages":"25-38"},"PeriodicalIF":0.0,"publicationDate":"2016-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70626208","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: 1
An Extended Sliding Mode Observer for Speed, Position and Torque Sensorless Control for PMSM Drive Based Stator Resistance Estimator 基于定子电阻估计器的永磁同步电机无速度、无位置、无转矩控制的扩展滑模观测器
Pub Date : 2016-01-04 DOI: 10.4236/ICA.2016.71001
Pierre Tety, A. Konaté, O. Asseu, E. Soro, P. Yoboué
This paper presents a robust sixth-order Discrete-time Extended Sliding Mode Observer (DESMO) for sensorless control of PMSM in order to estimate the currents, speed, rotor position, load torque and stator resistance. The satisfying simulation results on Simulink/Matlab environment for a 1.6 kW PMSM demonstrate the good performance and stability of the proposed ESMO algorithm against parameter variation, modeling uncertainty, measurement and system noises.
提出了一种用于永磁同步电机无传感器控制的鲁棒六阶离散扩展滑模观测器(DESMO),用于估计电流、速度、转子位置、负载转矩和定子电阻。在Simulink/Matlab环境下对一台1.6 kW永磁同步电机进行了仿真,结果表明该算法具有良好的抗参数变化、建模不确定性、测量和系统噪声的性能和稳定性。
{"title":"An Extended Sliding Mode Observer for Speed, Position and Torque Sensorless Control for PMSM Drive Based Stator Resistance Estimator","authors":"Pierre Tety, A. Konaté, O. Asseu, E. Soro, P. Yoboué","doi":"10.4236/ICA.2016.71001","DOIUrl":"https://doi.org/10.4236/ICA.2016.71001","url":null,"abstract":"This paper presents a robust sixth-order Discrete-time Extended Sliding Mode Observer (DESMO) for sensorless control of PMSM in order to estimate the currents, speed, rotor position, load torque and stator resistance. The satisfying simulation results on Simulink/Matlab environment for a 1.6 kW PMSM demonstrate the good performance and stability of the proposed ESMO algorithm against parameter variation, modeling uncertainty, measurement and system noises.","PeriodicalId":62904,"journal":{"name":"智能控制与自动化(英文)","volume":"07 1","pages":"1-8"},"PeriodicalIF":0.0,"publicationDate":"2016-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70625659","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: 5
Flocking for Leader-Following Multi-Agent Systems with Time-Varying Delay 时变时滞领导-跟随多智能体系统的群集问题
Pub Date : 2016-01-04 DOI: 10.4236/ICA.2016.71002
Fenglan Sun, Rui Wang, Yongfu Li, Feng Liu
This paper investigates the flocking problem in multi-agent system with time-varying delay and a virtual leader. Each agent here is subject to nonlinear dynamics. For the system, the corresponding algorithm with time-varying delay is proposed. Under the assumption that the initial network is connected, it is proved that the distance between agents is in the desired distance. The theoretical deduction shows that the stable flocking motion is achieved.
研究了具有时变延迟和虚拟领导者的多智能体系统中的群集问题。这里的每个agent都受非线性动力学的影响。针对该系统,提出了相应的时变延迟算法。在初始网络连通的假设下,证明了agent之间的距离在期望距离内。理论推导表明,实现了稳定的聚束运动。
{"title":"Flocking for Leader-Following Multi-Agent Systems with Time-Varying Delay","authors":"Fenglan Sun, Rui Wang, Yongfu Li, Feng Liu","doi":"10.4236/ICA.2016.71002","DOIUrl":"https://doi.org/10.4236/ICA.2016.71002","url":null,"abstract":"This paper investigates the flocking problem in multi-agent system with time-varying delay and a virtual leader. Each agent here is subject to nonlinear dynamics. For the system, the corresponding algorithm with time-varying delay is proposed. Under the assumption that the initial network is connected, it is proved that the distance between agents is in the desired distance. The theoretical deduction shows that the stable flocking motion is achieved.","PeriodicalId":62904,"journal":{"name":"智能控制与自动化(英文)","volume":"07 1","pages":"9-15"},"PeriodicalIF":0.0,"publicationDate":"2016-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70625884","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: 7
Gap Navigation Trees for Discovering Unknown Environments 用于发现未知环境的间隙导航树
Pub Date : 2015-10-30 DOI: 10.4236/ICA.2015.64022
Reem Nasir, Ashraf Elnagar
We propose a motion planning gap-based algorithms for mobile robots in an unknown environment for exploration purposes. The results are locally optimal and sufficient to navigate and explore the environment. In contrast with the traditional roadmap-based algorithms, our proposed algorithm is designed to use minimal sensory data instead of costly ones. Therefore, we adopt a dynamic data structure called Gap Navigation Trees (GNT), which keeps track of the depth discontinuities (gaps) of the local environment. It is incrementally constructed as the robot which navigates the environment. Upon exploring the whole environment, the resulting final data structure exemplifies the roadmap required for further processing. To avoid infinite cycles, we propose to use landmarks. Similar to traditional roadmap techniques, the resulting algorithm can serve key applications such as exploration and target finding. The simulation results endorse this conclusion. However, our solution is cost effective, when compared to traditional roadmap systems, which makes it more attractive to use in some applications such as search and rescue in hazardous environments.
提出了一种基于间隙的移动机器人在未知环境下的运动规划算法。结果是局部最优的,足以导航和探索环境。与传统的基于路线图的算法相比,我们提出的算法旨在使用最小的感官数据而不是昂贵的感官数据。因此,我们采用了一种称为间隙导航树(GNT)的动态数据结构,它可以跟踪局部环境的深度不连续(间隙)。它被逐渐构建为一个在环境中导航的机器人。在探索整个环境之后,得到的最终数据结构举例说明了进一步处理所需的路线图。为了避免无限循环,我们建议使用地标。与传统的路线图技术类似,生成的算法可以服务于勘探和目标查找等关键应用。仿真结果证实了这一结论。然而,与传统的路线图系统相比,我们的解决方案具有成本效益,这使得它在某些应用中更具吸引力,例如在危险环境中的搜索和救援。
{"title":"Gap Navigation Trees for Discovering Unknown Environments","authors":"Reem Nasir, Ashraf Elnagar","doi":"10.4236/ICA.2015.64022","DOIUrl":"https://doi.org/10.4236/ICA.2015.64022","url":null,"abstract":"We propose a motion \u0000planning gap-based algorithms for mobile robots in an unknown environment for \u0000exploration purposes. The results are locally optimal and sufficient to \u0000navigate and explore the environment. In contrast with the traditional \u0000roadmap-based algorithms, our proposed algorithm is designed to use minimal \u0000sensory data instead of costly ones. Therefore, we adopt a dynamic data \u0000structure called Gap Navigation Trees (GNT), which keeps track of the depth \u0000discontinuities (gaps) of the local environment. It is incrementally \u0000constructed as the robot which navigates the environment. Upon exploring the \u0000whole environment, the resulting final data structure exemplifies the roadmap \u0000required for further processing. To avoid infinite cycles, we propose to use \u0000landmarks. Similar to traditional roadmap techniques, the resulting algorithm \u0000can serve key applications such as exploration and target finding. The \u0000simulation results endorse this conclusion. However, our solution is cost \u0000effective, when compared to traditional roadmap systems, which makes it more \u0000attractive to use in some applications such as search and rescue in hazardous \u0000environments.","PeriodicalId":62904,"journal":{"name":"智能控制与自动化(英文)","volume":"06 1","pages":"229-240"},"PeriodicalIF":0.0,"publicationDate":"2015-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70625746","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: 6
A Novel Technique for Detection of Time Delay Switch Attack on Load Frequency Control 一种检测负载频率控制延时开关攻击的新技术
Pub Date : 2015-10-30 DOI: 10.4236/ICA.2015.64020
A. Sargolzaei, K. Yen, M. Abdelghani, A. Mehbodniya, S. Sargolzaei
In this paper, we focus on the estimation of time delays caused by adversaries in the sensing loop (SL). Based on the literature review, time delay switch (TDS) attacks could make any control system, in particular a power control system, unstable. Therefore, future smart grids will have to use advanced methods to provide better situational awareness of power grid states keeping smart grids reliable and safe from TDS attacks. Here, we introduce a simple method for preventing time delay switch attack on networked control systems. The method relies on an estimator that will estimate and track time delays introduced by an adversary. Knowing the maximum tolerable time delay of the plant’s optimal controller for which the plant remains stable, a time-delay detector issues an alarm signal when the estimated time delay is larger than the minimum one and directs the system to alarm state. In an alarm state, the plant operates under the control of an emergency controller that is local to the plant and remains in this mode until the networked control system state is restored. This method is an inexpensive and simple way to guarantee that an industrial control system remains stable and secure.
在本文中,我们重点研究了感知回路中对手引起的时延估计问题。根据文献综述,时延开关(TDS)攻击可以使任何控制系统,特别是电力控制系统不稳定。因此,未来的智能电网必须使用先进的方法来提供更好的电网状态态势感知,以保持智能电网的可靠和安全,免受TDS攻击。本文介绍了一种防止网络控制系统时延切换攻击的简单方法。该方法依赖于一个估计器,该估计器将估计和跟踪由对手引入的时间延迟。时滞检测器知道工厂保持稳定的最优控制器的最大可容忍时滞,当估计的时滞大于最小时滞时,发出报警信号,引导系统进入报警状态。在报警状态下,工厂在工厂本地的应急控制器的控制下运行,并保持这种模式,直到网络控制系统状态恢复。这种方法是一种廉价和简单的方法,以保证工业控制系统保持稳定和安全。
{"title":"A Novel Technique for Detection of Time Delay Switch Attack on Load Frequency Control","authors":"A. Sargolzaei, K. Yen, M. Abdelghani, A. Mehbodniya, S. Sargolzaei","doi":"10.4236/ICA.2015.64020","DOIUrl":"https://doi.org/10.4236/ICA.2015.64020","url":null,"abstract":"In this paper, we focus on the estimation of time delays caused by adversaries in the sensing loop (SL). Based on the literature review, time delay switch (TDS) attacks could make any control system, in particular a power control system, unstable. Therefore, future smart grids will have to use advanced methods to provide better situational awareness of power grid states keeping smart grids reliable and safe from TDS attacks. Here, we introduce a simple method for preventing time delay switch attack on networked control systems. The method relies on an estimator that will estimate and track time delays introduced by an adversary. Knowing the maximum tolerable time delay of the plant’s optimal controller for which the plant remains stable, a time-delay detector issues an alarm signal when the estimated time delay is larger than the minimum one and directs the system to alarm state. In an alarm state, the plant operates under the control of an emergency controller that is local to the plant and remains in this mode until the networked control system state is restored. This method is an inexpensive and simple way to guarantee that an industrial control system remains stable and secure.","PeriodicalId":62904,"journal":{"name":"智能控制与自动化(英文)","volume":"06 1","pages":"205-214"},"PeriodicalIF":0.0,"publicationDate":"2015-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70625857","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: 11
Static Simulation of a 12/8 Switched Reluctance Machine (Application: Starter-Generator) 12/8开关磁阻电机的静态仿真(应用:起动发电机)
Pub Date : 2015-10-30 DOI: 10.4236/ICA.2015.64025
Sihem Saidani, M. Ghariani
Because its high efficiency, its simple stator and rotor structures, the low cost and high reliability, speed operation combined with robust and low cost construction, the switched reluctance machines have represented. In recent years, an interesting alternative to other machine types has been chosen for traction applications especially starter-generator. Their rotors do not generate significant heat, resulting in easy cooling. Their unidirectional flux and current may generate lower core losses and require a simple converter design. Moreover, the switched reluctance machines are known for their high reliability and capability of operating in four quadrants for a variable speed drive. Despite those merits, switched reluctance machine has not been extensively used until recently because of its problems of torque ripples and noise. Additionally, researchers have faced many difficulties to build a SRM model because it is inherently multivariable. It has strong coupling and especially a high nonlinearity. In this paper, we deal with many modeling methods. Numerical, analytical and intelligent approaches are studied. The important aim in this research is to use static results from FEMM simulation as flux-linkage, co-energy, static torque to form a dynamic model of a switched reluctance machine used next as a starter-generator of a hybrid vehicle.
由于其高效率、简单的定子和转子结构、低成本和高可靠性、高速运行与坚固耐用和低成本结构相结合,开关磁阻电机已成为典型。近年来,一种有趣的替代其他机器类型已选择牵引应用,特别是起动发电机。它们的转子不产生显著的热量,因此容易冷却。它们的单向磁通和电流可以产生较低的磁芯损耗,并且需要简单的转换器设计。此外,开关磁阻电机以其高可靠性和在四个象限中运行的变速驱动器能力而闻名。尽管有这些优点,但由于开关磁阻电机存在转矩波动和噪声问题,直到最近才得到广泛应用。此外,由于SRM模型本身是多变量的,研究人员在构建SRM模型时遇到了许多困难。它具有较强的耦合性和较高的非线性。在本文中,我们讨论了许多建模方法。研究了数值方法、解析方法和智能方法。本研究的重要目的是利用FEMM仿真的静态结果作为磁链、共能、静态转矩,建立开关磁阻电机作为混合动力汽车起动发电机的动态模型。
{"title":"Static Simulation of a 12/8 Switched Reluctance Machine (Application: Starter-Generator)","authors":"Sihem Saidani, M. Ghariani","doi":"10.4236/ICA.2015.64025","DOIUrl":"https://doi.org/10.4236/ICA.2015.64025","url":null,"abstract":"Because its high efficiency, its simple stator and rotor structures, the low cost and high reliability, speed operation combined with robust and low cost construction, the switched reluctance machines have represented. In recent years, an interesting alternative to other machine types has been chosen for traction applications especially starter-generator. Their rotors do not generate significant heat, resulting in easy cooling. Their unidirectional flux and current may generate lower core losses and require a simple converter design. Moreover, the switched reluctance machines are known for their high reliability and capability of operating in four quadrants for a variable speed drive. Despite those merits, switched reluctance machine has not been extensively used until recently because of its problems of torque ripples and noise. Additionally, researchers have faced many difficulties to build a SRM model because it is inherently multivariable. It has strong coupling and especially a high nonlinearity. In this paper, we deal with many modeling methods. Numerical, analytical and intelligent approaches are studied. The important aim in this research is to use static results from FEMM simulation as flux-linkage, co-energy, static torque to form a dynamic model of a switched reluctance machine used next as a starter-generator of a hybrid vehicle.","PeriodicalId":62904,"journal":{"name":"智能控制与自动化(英文)","volume":"06 1","pages":"271-288"},"PeriodicalIF":0.0,"publicationDate":"2015-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70625523","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: 5
Adaptive Control for a Class of Systems with Output Deadzone Nonlinearity 一类输出死区非线性系统的自适应控制
Pub Date : 2015-10-30 DOI: 10.4236/ICA.2015.64021
N. Ahmad, Ebraheem Sultan, Mohammed Q. Qasem, H. Ebraheem, Jasem M. Alostad
This paper presents a continuous-time adaptive control scheme for systems with uncertain non-symmetrical deadzone nonlinearity located at the output of a plant. An adaptive inverse function is developed and used in conjunction with a robust adaptive controller to reduce the effect of deadzone nonlinearity. The deadzone inverse function is also implemented in continuous time, and an adaptive update law is designed to estimate the deadzone parameters. The adaptive output deadzone inverse controller is smoothly differentiable and is combined with a robust adaptive nonlinear controller to ensure robustness and boundedness of all the states of the system as well as the output signal. The mismatch between the ideal deadzone inverse function and our proposed implantation is treated as a disturbance that can be upper bounded by a polynomial in the system states. The overall stability of the closed-loop system is proven by using Lyapunov method, and simulations confirm the efficacy of the control methodology.
针对存在不确定非对称死区非线性的系统,提出了一种连续时间自适应控制方案。提出了一种自适应逆函数,并结合鲁棒自适应控制器来减小死区非线性的影响。在连续时间内实现了死区逆函数,并设计了自适应更新律来估计死区参数。该自适应输出死区逆控制器是光滑可微的,并与鲁棒自适应非线性控制器相结合,以保证系统所有状态和输出信号的鲁棒性和有界性。理想死区逆函数与我们提出的植入之间的不匹配被视为一个扰动,可以用系统状态的多项式上界。利用李雅普诺夫方法证明了闭环系统的总体稳定性,仿真结果验证了控制方法的有效性。
{"title":"Adaptive Control for a Class of Systems with Output Deadzone Nonlinearity","authors":"N. Ahmad, Ebraheem Sultan, Mohammed Q. Qasem, H. Ebraheem, Jasem M. Alostad","doi":"10.4236/ICA.2015.64021","DOIUrl":"https://doi.org/10.4236/ICA.2015.64021","url":null,"abstract":"This paper presents a continuous-time adaptive control scheme for systems with uncertain non-symmetrical deadzone nonlinearity located at the output of a plant. An adaptive inverse function is developed and used in conjunction with a robust adaptive controller to reduce the effect of deadzone nonlinearity. The deadzone inverse function is also implemented in continuous time, and an adaptive update law is designed to estimate the deadzone parameters. The adaptive output deadzone inverse controller is smoothly differentiable and is combined with a robust adaptive nonlinear controller to ensure robustness and boundedness of all the states of the system as well as the output signal. The mismatch between the ideal deadzone inverse function and our proposed implantation is treated as a disturbance that can be upper bounded by a polynomial in the system states. The overall stability of the closed-loop system is proven by using Lyapunov method, and simulations confirm the efficacy of the control methodology.","PeriodicalId":62904,"journal":{"name":"智能控制与自动化(英文)","volume":"06 1","pages":"215-228"},"PeriodicalIF":0.0,"publicationDate":"2015-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70625865","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
Performance Analysis of Grid Connected and Islanded Modes of AC/DC Microgrid for Residential Home Cluster 住宅小区交直流微电网并网与孤岛模式性能分析
Pub Date : 2015-10-30 DOI: 10.4236/ICA.2015.64024
A. Othman, H. Gabbar, N. Honarmand
This paper presents performance analysis on hybrid AC/DC microgrid networks for residential home cluster. The design of the proposed microgrid includes comprehensive types of Distributed Generators (DGs) as hybrid power sources (wind, Photovoltaic (PV) solar cell, battery, fuel cell). Details about each DG dynamic modeling are presented and discussed. The customers in home cluster can be connected in both of the operating modes: islanded to the microgrid or connected to utility grid. Each DG has appended control system with its modeling that will be discussed to control DG performance. The wind turbine will be controlled by AC control system within three sub-control systems: 1) speed regulator and pitch control, 2) rotor side converter control, and 3) grid side converter control. The AC control structure is based on PLL, current regulator and voltage booster converter with using of photovoltaic Voltage Source Converter (VSC) and inverters to connect to the grid. The DC control system is mainly based on Maximum Power Point Tracking (MPPT) controller and boost converter connected to the PV array block and in order to control the system. The case study is used to analyze the performance of the proposed microgrid. The buses voltages, active power and reactive power responses are presented in both of grid-connected and islanded modes. In addition, the power factor, Total Harmonic Distortion (THD) and modulation index are calculated.
本文对用于住宅集群的交直流混合微电网进行了性能分析。拟议的微电网设计包括综合类型的分布式发电机(dg)作为混合电源(风能,光伏(PV)太阳能电池,电池,燃料电池)。介绍并讨论了每个DG动态建模的细节。家庭集群中的客户可以以两种运行模式连接:孤岛到微电网或连接到公用电网。每个DG都附加了控制系统及其建模,将讨论控制DG性能。风力发电机将由交流控制系统控制,分为三个子控制系统:1)调速器和螺距控制,2)转子侧变流器控制,3)电网侧变流器控制。交流控制结构以锁相环、稳流器和升压变换器为基础,利用光伏电压源变换器(VSC)和逆变器接入电网。直流控制系统主要是基于最大功率点跟踪(MPPT)控制器和升压变换器连接到光伏阵列块和来控制系统。通过实例分析了所提出的微电网的性能。给出了并网模式和孤岛模式下母线电压、有功功率和无功功率的响应。此外,还计算了功率因数、总谐波失真(THD)和调制指数。
{"title":"Performance Analysis of Grid Connected and Islanded Modes of AC/DC Microgrid for Residential Home Cluster","authors":"A. Othman, H. Gabbar, N. Honarmand","doi":"10.4236/ICA.2015.64024","DOIUrl":"https://doi.org/10.4236/ICA.2015.64024","url":null,"abstract":"This paper presents \u0000performance analysis on hybrid AC/DC microgrid networks for residential home \u0000cluster. The design of the proposed microgrid includes comprehensive types of \u0000Distributed Generators (DGs) as hybrid power sources (wind, Photovoltaic (PV) \u0000solar cell, battery, fuel cell). Details about each DG dynamic modeling are \u0000presented and discussed. The customers in home cluster can be connected in both \u0000of the operating modes: islanded to the microgrid or connected to utility grid. \u0000Each DG has appended control system with its modeling that will be discussed to \u0000control DG performance. The wind turbine will be controlled by AC control \u0000system within three sub-control systems: 1) speed regulator and pitch control, 2) \u0000rotor side converter control, and 3) grid side converter control. The AC \u0000control structure is based on PLL, current regulator and voltage booster \u0000converter with using of photovoltaic Voltage Source Converter (VSC) and \u0000inverters to connect to the grid. The DC control system is mainly based on \u0000Maximum Power Point Tracking (MPPT) controller and boost converter connected to \u0000the PV array block and in order to control the system. The case study is used \u0000to analyze the performance of the proposed microgrid. The buses voltages, \u0000active power and reactive power responses are presented in both of grid-connected \u0000and islanded modes. In addition, the power factor, Total Harmonic Distortion \u0000(THD) and modulation index are calculated.","PeriodicalId":62904,"journal":{"name":"智能控制与自动化(英文)","volume":"06 1","pages":"249-270"},"PeriodicalIF":0.0,"publicationDate":"2015-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70625478","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
期刊
智能控制与自动化(英文)
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1