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2020 19th International Conference on Mechatronics - Mechatronika (ME)最新文献

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Algorithm for Creating of the Equivalent Thermal Circuit for PMSM 永磁同步电机等效热电路的建立算法
Pub Date : 2020-12-02 DOI: 10.1109/ME49197.2020.9286645
Martin Skalicky, R. Pechánek, L. Veg
Equivalent thermal circuit with lumped parameters is a frequently used method for thermal modeling of electrical machines. This paper presents an algorithm of the modular thermal model for the Permanent Magnet Synchronous Machine (PMSM). Modularity is achieved by separating geometry into sub-models, which allows easy introduction of different topologies into the calculations which leads to easier setting for modeled machines. First, used methods are introduced than algorithm realized in MATLAB interface is described step by step, at the end results and verification with FEM calculations are presented.
集总参数等效热电路是一种常用的电机热建模方法。提出了永磁同步电机模块化热模型的一种算法。模块化是通过将几何结构划分为子模型来实现的,这允许在计算中轻松引入不同的拓扑结构,从而使建模机器的设置更容易。首先介绍了所采用的方法,然后逐步描述了在MATLAB界面上实现的算法,最后给出了结果并与有限元计算进行了验证。
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引用次数: 2
Methodology for Calculation of Efficiency Maps for Permanent Magnet Synchronous Motors from Sparse Measured Data 基于稀疏测量数据的永磁同步电机效率图计算方法
Pub Date : 2020-12-02 DOI: 10.1109/ME49197.2020.9286616
M. Novak, J. Novak
This paper presents a methodology to evaluate the efficiency map of a permanent magnet synchronous machine (PMSM) from sparse measured data. The methodology is based on a model of losses of the machine. Based on the model the efficiency at an arbitrary point can be calculated and an error between the calculation and measurement can be determined. The mathematical model is adapted in such a way that the error between the model and experiment is minimized. The model has from 7 to 20 adapted parameters. The search for the optimal parameters is done with two approaches: brute force and Monte Carlo search. The results are compared in the paper. With the Monte Carlo search the algorithm finishes in few minutes, based on the number of parameters. The result is an analytical function for the efficiency map and the efficiency can be calculated at an arbitrary point with arbitrary precision. The resulting fit between the measured and calculated map is within a few percent difference.
本文提出了一种利用稀疏测量数据评估永磁同步电机效率图的方法。该方法是基于机器损耗的模型。基于该模型可以计算任意点的效率,并确定计算值与测量值之间的误差。对数学模型进行了调整,使模型与实验之间的误差最小。该模型有7到20个自适应参数。最优参数的搜索是通过两种方法完成的:蛮力和蒙特卡罗搜索。本文对所得结果进行了比较。在蒙特卡罗搜索算法完成在几分钟内,基于参数的数量。结果是效率图的解析函数,可以在任意点以任意精度计算效率。测量图和计算图之间的拟合结果相差不到几个百分点。
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引用次数: 1
Design Of Automated Desktop Seed Dispensing Robot For Bio-Laboratories 生物实验室自动化桌面播种机器人的设计
Pub Date : 2020-12-02 DOI: 10.1109/ME49197.2020.9286700
Hung-Nguyen Manh, M. Popela
An automated seed dispensing robot is a useful tool to save time with manual work in bio-laboratories for more efficiency, but it is not yet popular because of the cost and the fact that some of the functions are complex and redundant. In order to address these issues, the paper presents the design of an automated handling robot to dispense seeds in the bio-laboratory based on a modified 3D printer frame with an additional axis and sensors. The robot was equipped with additional sensors and functionalities for control and monitoring. Seeds are picked up and dropped accurately by a vacuum tool mounted on the mobile carriage of the robot’s frame. The pick-up process is guided by a seed detector sensor. Moreover, an additional needle length sensor combines with the distance sensor to detect the released distance for an accurate position. In the experiments, we investigate runtimes, the archive accuracy and describe the modular design of the robot to show that the prototype is well sufficient to distribute accurately small seeds to the dish.
自动配种机器人是一种有效的工具,可以节省生物实验室的人工工作时间,提高效率,但由于成本和一些功能复杂和冗余,它尚未普及。为了解决这些问题,本文提出了一种基于改进的3D打印机框架和额外的轴和传感器的自动处理机器人的设计,用于在生物实验室中分配种子。该机器人配备了额外的传感器和控制和监测功能。种子通过安装在机器人框架移动支架上的真空工具精确地拾取和丢弃。取粒过程由种子探测器传感器引导。此外,一个额外的针长传感器与距离传感器相结合,以检测释放距离,以获得准确的位置。在实验中,我们研究了机器人的运行时间,存档精度和描述模块化设计,以表明原型足以准确地将小种子分发到盘子上。
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引用次数: 0
AGVs mission control support in smart factories by decision networks 基于决策网络的智能工厂agv任务控制支持
Pub Date : 2020-12-02 DOI: 10.1109/ME49197.2020.9286465
S. Vechet, J. Krejsa, Kuo-Shen Chen
Towards the implementation of AGV’s (Automated Guided Vehicles) complex navigation tasks within the dynamic and hazardous environment of upcoming smart factories the developers challenges reliability and maintenance problem. While the number of AGVs in shared space gets higher the risk of failure follows the trend and both the users and developers need an adequate tool to monitor and diagnose all applied AGVs in real time. We have prepared a decision network to support the AGVs missions by real-time internal diagnostic to prepare more reliable AGV solutions in smart factories. The internal diagnostics monitors the sensors/inputs signals and internal communication channels to take decision on further actions to perform within the given environment [13]. The main task for the decision network is to support the control system or human operator with possible decisions to take to avoid system failure.
为了在即将到来的智能工厂的动态和危险环境中实现AGV(自动导引车)复杂的导航任务,开发人员挑战了可靠性和维护问题。随着共享空间中agv数量的增加,故障风险也随之增加,用户和开发人员都需要一个适当的工具来实时监控和诊断所有应用的agv。我们准备了一个决策网络,通过实时内部诊断来支持AGV任务,为智能工厂提供更可靠的AGV解决方案。内部诊断监视传感器/输入信号和内部通信通道,以决定在给定环境[13]中执行的进一步操作。决策网络的主要任务是支持控制系统或人工操作员采取可能的决策,以避免系统故障。
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引用次数: 4
Design of Genetic Algorithms for the Simulation-Based Training of Artificial Neural Networks in the Context of Automated Vehicle Guidance 基于遗传算法的自动车辆导航人工神经网络仿真训练设计
Pub Date : 2020-12-02 DOI: 10.1109/ME49197.2020.9286464
O. Yarom, Sven Jacobitz, X. Liu-Henke
This paper describes the design of a Genetic Algorithm (GA) for intelligent control systems with Artificial Neural Networks (ANNs) in the context of autonomous driving in a model-based and verification-oriented process. First, a summary of the state of the art is given on the use of ANNs and GAs in control engineering. This is followed by an explanation of the design methodology used in this paper. Then the concept of a universal GA for the (simulation-based) training of any common ANNs is presented. Afterwards the design of the GA is explained in detail. Special aspects of parameterization and algorithms are also discussed. Finally, the presented method is validated by an example of a model-based design of a driving function based on an ANN for automated lateral guidance.
本文以模型为基础,以验证为导向,设计了一种基于遗传算法的自动驾驶人工神经网络智能控制系统。首先,总结了人工神经网络和气体控制系统在控制工程中的应用现状。接下来是对本文中使用的设计方法的解释。然后提出了通用遗传算法的概念,用于任何通用人工神经网络的(基于仿真的)训练。然后对遗传算法的设计进行了详细的说明。还讨论了参数化和算法的特殊方面。最后,通过基于模型的基于人工神经网络的自动横向引导驱动函数设计实例验证了该方法的有效性。
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引用次数: 2
Activity movements of cardiac surgeon during classical, endoscopic and robotic surgery on soft tissue 心脏外科医生在经典、内窥镜和机器人软组织手术中的活动动作
Pub Date : 2020-12-02 DOI: 10.1109/ME49197.2020.9286652
G. Ilewicz
It is significant to analyze how long the treatments with the usage of a medical robot, classical or endoscopic instrumentation last. Moreover, it is important to determine the velocity, acceleration and length of the path. This gives an overview of the basic parameters of the operation and enables preoperative planning. The proposed approach makes it possible to evaluate the technical abilities of the surgeon during the suturing operation in an objective manner by specifying quantitative mechanical values, such as: time of the operation, length of the path, and the speed, which are required to achieve proper performance of the procedure.A system of synchronized motion detectors was used in the form of digital cameras with a CCD matrix. The cardiac surgeon’s movements were recorded at a frequency above 30 Hz. The APAS system was applied for kinematic analysis. Mechanical quantities and phenomena were determined based on FDM and analytical geometry.The results section demonstrates the trajectories of various operational activities. Times of classical, endoscopic operations and the usage of a medical robot were also assigned. The results are presented in spatial charts.Information about the duration of individual operations was received. Speeds and joints trajectory provide a view on the cardiac surgeon’s mobility for various types of surgeries.
分析使用医疗机器人、经典仪器或内窥镜仪器治疗的持续时间具有重要意义。此外,确定路径的速度、加速度和长度也很重要。这给出了手术基本参数的概述,并使术前计划成为可能。所提出的方法可以客观地评估外科医生在缝合手术过程中的技术能力,通过指定定量的力学值,如:手术时间、路径长度和速度,以达到手术的适当性能。同步运动检测器系统采用了带有CCD矩阵的数码相机的形式。心脏外科医生的动作被记录在30赫兹以上的频率上。应用APAS系统进行运动学分析。力学量和现象的确定是基于FDM和解析几何。结果部分展示了各种业务活动的轨迹。经典内镜手术的时间和医疗机器人的使用也被指定。结果以空间图的形式呈现。收到了关于个别行动持续时间的资料。速度和关节轨迹提供了心脏外科医生对各种类型手术的灵活性的看法。
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引用次数: 0
Electronics and software structure of BMS with circuits of BQ769x0 series BQ769x0系列电路BMS的电子学及软件结构
Pub Date : 2020-12-02 DOI: 10.1109/ME49197.2020.9286669
Ondrej Mach, J. Eichler, Lukáš Krčmář
The current trend for road transport is the transition from fossil fuels to electric drives, which is associated with the use of Li-on batteries. The role of BMS (battery management system) is necessary for correct and safe operation of the battery. This task can in principle be categorized into several sub-parts - power interface electronics, monitoring analog front-end (AFE) circuits, communication peripherals and a central control unit equipped with the appropriate software. The battery management system is used for continuous dynamic monitoring of the flow of electricity and is implemented by supporting circuits of the BQ769x0 series. The choice of a specific circuit mainly affects the variable series combination of cells. The single-processor control unit, outside its energy-saving operating phases, reads the operating information from the AFE circuits with the required period, which is processed by the implemented algorithms. The principle of advanced control requires full control over the connected Li-Ion cells, which are initially thoroughly mapped by the first operating cycles. The central control unit must have an options for recording operating data on the MMC, service USB communication and wireless connection via a Bluetooth module for service tasks.
目前公路运输的趋势是从化石燃料转向电力驱动,这与锂电池的使用有关。电池管理系统(BMS)的作用是电池正确、安全运行所必需的。这项任务原则上可以分为几个子部分——电源接口电子器件、监测模拟前端(AFE)电路、通信外设和配备适当软件的中央控制单元。电池管理系统通过BQ769x0系列配套电路实现对电流的连续动态监测。具体电路的选择主要影响可变串联组合的电池。单处理器控制单元在其节能运行阶段之外,从AFE电路读取具有所需周期的运行信息,并由所实现的算法进行处理。先进的控制原理要求对连接的锂离子电池进行完全控制,这些电池在第一个操作周期中被彻底地映射出来。中央控制单元必须具有在MMC上记录操作数据的选项,服务USB通信和通过蓝牙模块进行服务任务的无线连接。
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引用次数: 1
Experimental verification of a simulation model for extra-fast communication on twisted pair lines 双绞线上超高速通信仿真模型的实验验证
Pub Date : 2020-12-02 DOI: 10.1109/ME49197.2020.9286697
P. Jares, J. Vodrazka, P. Lafata
Today, G.fast subscriber technology belongs to the most advanced access network technologies used in practice and it should be used for massive FTTx development. However, only the narrow band of G.fast subscriber lines is ready for practical deployment. Due to this fact, simulations and modeling of G.fast lines based on different transmission parameters and environment are important in order to estimate future access networks development. For that reason, it is important to implement additional parameters to provide more accurate and relevant modeling and simulations of real access networks and various types of G.fast transmission lines. This paper deals with modeling and simulations of G.fast lines in typical twisted pairs in industry environment. The article provides calculations and simulations of G.fast lines for various types of metallic cables and under different conditions, including specific profiles of crosstalk spectral densities. Next, these theoretical simulations are compared with real measurements, which increases the accuracy of the modeling. These presented models can be used to accurately estimate the performance of local networks under different conditions in practice.
目前,G.fast用户技术属于目前应用最先进的接入网技术,应该用于FTTx的大规模发展。然而,只有G.fast用户线路的窄带可以用于实际部署。因此,基于不同传输参数和环境的G.fast线路的仿真和建模对于预测未来接入网的发展具有重要意义。因此,重要的是要实现额外的参数,以提供更准确和相关的建模和模拟真实接入网和各种类型的G.fast传输线。本文对工业环境中典型双绞线的G.fast线进行了建模和仿真。本文给出了各种类型金属电缆在不同条件下的G.fast线的计算和模拟,包括串音谱密度的具体分布。然后,将这些理论模拟结果与实际测量结果进行了比较,从而提高了模型的准确性。这些模型可以在实际应用中准确地估计局部网络在不同条件下的性能。
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引用次数: 0
Current in Broken Squirrel Cage of Induction Machine 感应电机鼠笼破损电流
Pub Date : 2020-12-02 DOI: 10.1109/ME49197.2020.9286711
B. Skala, V. Kindl, J. Sobra, J. Laksar
The paper deals with the squirrel cage of an induction motor. Faulty connection between the rotor bar and the end-ring has a fundamental effect on the magnitude of the current of an affecting bar and surrounding bars as well. By the matrix equation is solved the current distribution in the damaged bars of a squirrel cage. The thermal dilatation of the bars is also observed. Unsymmetrical thermal stress on the bars causes them to different dilatation and leads to further development of the fault.
本文研究了异步电动机的鼠笼结构。转子棒与端环之间的错误连接对影响棒和周围棒的电流大小也有根本性的影响。利用矩阵方程求解了鼠笼损伤杆内的电流分布。还观察到棒材的热膨胀。不对称的热应力作用使断块产生不同程度的扩张,导致断层进一步发育。
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引用次数: 1
Torque ripple minimization in PMSM drive with non-sinusoidal back EMF using model predictive control 基于模型预测控制的非正弦反电动势永磁同步电机转矩脉动最小化
Pub Date : 2020-12-02 DOI: 10.1109/ME49197.2020.9286703
Ondrej Suchý, Š. Janouš, J. Talla, Z. Peroutka
A conventional field oriented control (FOC) relies on park transform and sinusoidal back EMF, in order to tread harmonic signals as constants. As a consequence, resulting control structure based on linear PI controllers is very simple and well tested. However if the back EMF of the machine is not sinusoidal, single coordinated dq system fails to adequately describe the motor, which negatively impacts the control performance and causes additional torque ripple and joule losses in the motor. A commonly used methods for compensation of negative effects of non-sinusoidal back EMF significantly increase the complexity of the algorithm. In this paper we use popular version of predictive control called FCS-MPC which does not relies on the park transform, and thus it allows to address this issue in a simple way. The algorithm has been tested in simulations using the real data of target permanent magnet synchronous motor (PMSM) drive of rated power 100kW.
传统的场定向控制(FOC)依赖于park变换和正弦反电动势,以将谐波信号作为常数处理。因此,基于线性PI控制器的控制结构非常简单,并且经过了良好的测试。然而,如果机器的反电动势不是正弦的,单个协调dq系统不能充分描述电机,这对控制性能产生负面影响,并导致电机中的额外转矩脉动和焦耳损失。一种常用的补偿非正弦反电动势负效应的方法显著地增加了算法的复杂度。在本文中,我们使用了预测控制的流行版本FCS-MPC,它不依赖于公园变换,因此它允许以一种简单的方式解决这个问题。利用额定功率为100kW的目标永磁同步电机驱动的实际数据,对该算法进行了仿真验证。
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引用次数: 0
期刊
2020 19th International Conference on Mechatronics - Mechatronika (ME)
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