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2018 International Conference on Advanced Mechatronic Systems (ICAMechS)最新文献

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Coordinated Control and Energy Management Strategies for Hundred Megawatt-level Battery Energy Storage Stations Based on Multi-agent Theory 基于多智能体理论的百兆瓦级电池储能站协调控制与能量管理策略
Pub Date : 2018-08-01 DOI: 10.1109/ICAMECHS.2018.8506868
Xiangjun Li, Dong Zhang
This paper puts forward an energy management strategy to control the output of the hundred megawatt-level battery energy storage stations (BESS), thus to increase the ability of the large scale BESS for autonomous distribution of real time power. Based on the strategy of multi-agent particle swarm optimization, the real time power of the power converter system (PCS) has been calculated. Meanwhile, the layered structure consisting of main-agent, sub area agent, and PCS agent for the BESS are developed. The measured data of the wind power station is used to carry out a simulation analysis for large scale wind farm and BESS hybrid generation systems. It is verified that the control strategy can adaptively allocate the real time total demand of BESS and keep the state of charge for each unit of BESS at a proper level.
提出了一种控制百兆瓦级电池储能站输出的能量管理策略,从而提高大型电池储能站实时自主分配电力的能力。基于多智能体粒子群优化策略,计算了功率变换器系统的实时功率。同时,提出了由主代理、子区域代理和PCS代理组成的BESS分层结构。利用风电场实测数据,对大型风电场和BESS混合发电系统进行了仿真分析。仿真结果表明,该控制策略能够自适应地分配BESS的实时总需求,并使BESS各单元的充电状态保持在适当的水平。
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引用次数: 13
On-Demand Type Feedback Controller by Implicit Self-Tuning Control 基于隐式自整定控制的按需反馈控制器
Pub Date : 2018-08-01 DOI: 10.1109/ICAMECHS.2018.8507136
A. Yanou
This paper proposes a design method of on-demand type feedback controller based on generalized minimum variance control by using implicit self-tuning control. Coprime factorization approach can extend controller such as generalized minimum variance control (GMVC), generalized predictive control (GPC) and so on. The extended controller includes additional parameter, which can re-design the characteristic of the extended controller. On the other hand, the closed-loop characteristic by the extended controller maintains original one. Although strong stability systems can be obtained by the extended controller in order to design safe systems, focusing on feedback signal, the extended controller can also adjust the magnitude of the feedback signal. That is, the proposed controller can be designed so that the magnitude of the feedback signal becomes zero in the case that the control object is achieved. In other words the feedback signal by the proposed controller can appear on demand of achieving the control object. Therefore this paper proposes on-demand type feedback controller using implicit self-tuning control for plant uncertainty. A numerical example is shown in order to check the characteristic of the proposed method.
本文提出了一种基于广义最小方差控制的随需反馈控制器的设计方法,该方法采用隐式自整定控制。协素分解方法可以对广义最小方差控制(GMVC)、广义预测控制(GPC)等控制器进行扩展。扩展控制器包含附加参数,可以重新设计扩展控制器的特性。另一方面,扩展控制器保持了原有的闭环特性。虽然为了设计安全的系统,扩展控制器可以获得强稳定性系统,但重点关注反馈信号,扩展控制器还可以调整反馈信号的大小。也就是说,所提出的控制器可以被设计成在达到控制目标的情况下,反馈信号的幅值变为零。换句话说,所提出的控制器的反馈信号可以在实现控制目标的需要时出现。因此,本文提出了一种采用隐式自整定控制的按需反馈控制器。通过数值算例验证了所提方法的特点。
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引用次数: 0
Observability of non-cooperative adaptive games 非合作自适应博弈的可观察性
Pub Date : 2018-08-01 DOI: 10.1109/ICAMECHS.2018.8507098
Cheng Zeng, S. Xiang
Controlling complex systems to desired states is a very important issue in science and engineering. In the paper, we consider a new class of control systems based on non-cooperative adaptive games which can give some light on this kind of complex systems. It involves a hierarchal decision making structure: one leader and multiple followers. Given any strategy of the leader, the followers can form a non-cooperative adaptive game which may reach a Nash equilibrium. We can study the leader's observability of such an equilibrium which has not be investigated before. It seems to be a new direction of adaptive games from the perspective of control and beyond the frameworks of both the traditional control theory and game theory. More importantly, the resulting adaptive profile is shown to have some nice stability and convergence properties, for example, an asymptotic Nash equilibrium can be reached.
控制复杂系统达到理想状态是科学和工程中一个非常重要的问题。本文考虑了一类新的基于非合作自适应对策的控制系统,为这类复杂系统的研究提供了一些启示。它涉及到一个等级决策结构:一个领导者和多个追随者。给定领导者的任何策略,追随者都可以形成一个非合作的自适应博弈,并可能达到纳什均衡。我们可以研究这种均衡的领导者的可观察性,这是以前没有研究过的。从控制的角度出发,超越传统控制理论和博弈论的框架,似乎是适应性博弈研究的新方向。更重要的是,所得到的自适应轮廓具有良好的稳定性和收敛性,例如,可以达到渐近纳什均衡。
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引用次数: 0
Parallel Compensation control for Tube-type Dielectric elastomer actuator 管式介电弹性体作动器并联补偿控制
Pub Date : 2018-08-01 DOI: 10.1109/ICAMECHS.2018.8506939
Changan Jiang, S. Ueno
Recently, dielectric elastomer actuator (DEA) has been paid more attention because of its prominent characteristics such as high response, large stretch rate, lightweight etc. However, DEA has hysteresis that may lead the system to exhibit inaccuracies or oscillations and even instability. In this paper, a novel parallel compensation control system is designed for tube-type DEA to compensate the effect of hysteresis. In details, a modified play-type Prandtl-Ishlinskii hysteresis model is built to describe the tube-type DEA. Then, based on properties between play and stop hysteresis operators, a parallel compensator is constructed by using stop hysteresis operator. For rejecting the effect of input disturbance and plant perturbation, disturbance observer (DOB) is designed. To guarantee the tracking performance of the system, a tracking controller is also designed. Finally, simulation results verify the effectiveness of the proposed method.
近年来,介电弹性体作动器(DEA)因其高响应、大拉伸率、轻量化等突出特点而受到越来越多的关注。然而,DEA具有迟滞性,可能导致系统出现不准确或振荡,甚至不稳定。本文设计了一种新型的管式DEA并联补偿控制系统来补偿滞后效应。详细地,建立了一个改进的playtype Prandtl-Ishlinskii迟滞模型来描述管型DEA。然后,根据播放和停止迟滞算子的特性,利用停止迟滞算子构造了一个并联补偿器。为了抑制输入扰动和对象扰动的影响,设计了扰动观测器(DOB)。为了保证系统的跟踪性能,还设计了跟踪控制器。最后,仿真结果验证了所提方法的有效性。
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引用次数: 1
Robust Nonlinear Forced Vibration Control of a Flexible Plate Based on Operator Theory 基于算子理论的柔性板非线性强迫振动鲁棒控制
Pub Date : 2018-08-01 DOI: 10.1109/ICAMECHS.2018.8506885
Guang Jin, M. Deng
In this paper, robust nonlinear forced vibration control method based on operator theory for a flexible plate with piezoelectric actuators is proposed. In the interest of control effect from the piezoelectric actuators to a flexible plate determine the optimal position, the FEM(Finite Element Method) is used. The hysteresis nonlinearity of the piezoelectric actuators is expressed using P-I(Prandtl-Ishlinskii) model. The model of flexible plate is shown. In order to guarantee the stability of a nonlinear control system, the method of guarantee the stability based on the operator theory which is one of the nonlinear control system design approaches is shown. And an operator based method for removal of the disturbance is proposed. Finally, the validity of the designed control system by the simulation results is shown.
提出了一种基于算子理论的压电柔性板非线性强制振动鲁棒控制方法。从压电致动器对柔性板的控制效果出发,采用有限元法确定柔性板的最优位置。采用P-I(Prandtl-Ishlinskii)模型表示压电驱动器的滞回非线性。给出了柔性板的模型。为了保证非线性控制系统的稳定性,提出了一种基于算子理论的非线性控制系统稳定性保证方法。提出了一种基于算子的扰动去除方法。最后通过仿真结果验证了所设计控制系统的有效性。
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引用次数: 0
Research on masonry structure layout design based on BIM technology* 基于BIM技术的砌体结构布置设计研究*
Pub Date : 2018-08-01 DOI: 10.1109/ICAMECHS.2018.8507116
Yiqun Zhang, Y. Liu, P. Cai
As an important segment in construction, the constructional quality of masonry engineering has a significant influence on the overall project quality. But because masonry structure construction work is heavy, which involves many construction teams, and all of which are manual operation, there always are quality problems caused by the such technical errors as the masonry “construction joint”, “mortar joint”, material waste and reserved hole not meeting the designated position demands. BIM technology can not only solve the existing technical problems of masonry engineering by deepening the design of block arrangement in advance, but also be used for timely typesetting and error correction, as well as drawing to guide field construction, in case of problems during construction. Together with the feedback on construction problems, dynamic management of the whole construction process ensures masonry project quality. At the same time, the automatic statistics counting function of the block quantity of BIM can carry out fine management of field masonry materials and reduce waste, so as to provide a basis for cost budget. From the above, it is not hard to see that BIM technology plays an important role in quality control and cost control of masonry engineering.
砌体工程作为施工中的重要环节,其施工质量对整个工程质量有着重要的影响。但由于砌体结构施工工作量大,施工队伍多,且均为人工操作,砌体“施工缝”、“砂浆缝”、材料浪费、预留孔不符合指定位置要求等技术失误导致的质量问题时有发生。BIM技术不仅可以通过提前深化砌块布置设计来解决砌体工程存在的技术问题,还可以在施工过程中遇到问题时,及时进行排版纠错,绘制图纸指导现场施工。结合施工问题反馈,对施工全过程进行动态管理,保证砌体工程质量。同时,BIM的砌块数量自动统计计数功能,可以对现场砌体材料进行精细化管理,减少浪费,为成本预算提供依据。由此不难看出,BIM技术在砌体工程质量控制和成本控制中发挥着重要作用。
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引用次数: 1
A Privacy Protected Fall Detection IoT System for Elderly Persons Using Depth Camera 基于深度摄像头的老年人跌倒检测物联网系统
Pub Date : 2018-08-01 DOI: 10.1109/ICAMECHS.2018.8506987
Xiangbo Kong, Zelin Meng, Lin Meng, Hiroyuki Tomiyama
The proportion of the elderly persons in the world is constantly on the rise, and fall accidents have become a serious problem, especially for those who live alone. Currently, fall detection has attracted a lot of research attention and machine learning (ML) has shown promising performance in this task due to their strengths in person recognition. However, many existing methods using RGB images as the training data, resulting in the main information to be lost, or do not appropriately consider the effect of light, resulting in weak generalizability of the fall detection. Moreover, traditional methods pose a risk of leakage of personal privacy. This paper proposes a fall detection IoT system based on depth camera and fast Fourier transform (FFT) to overcome these problems. We first use depth camera to get the skeleton images of a person who is standing or falling down. We then get the characteristic quantity of these images and train them by ML to get the training model. Finally, we use FFT to encrypt images and detect the fall. We constructe a training database that includes 1131 images, and the experimental evaluation of the images demonstrates that our algorithm is effective for detecting falls and maintain privacy.
世界上老年人的比例在不断上升,跌倒事故已经成为一个严重的问题,特别是对于那些独居的人。目前,跌倒检测引起了很多研究的关注,机器学习(ML)由于其在人识别方面的优势,在这项任务中表现出了很好的表现。然而,现有的许多方法使用RGB图像作为训练数据,导致主要信息丢失,或者没有适当考虑光的影响,导致跌倒检测的泛化能力较弱。此外,传统方法存在泄露个人隐私的风险。为了克服这些问题,本文提出了一种基于深度相机和快速傅里叶变换(FFT)的物联网跌倒检测系统。我们首先使用深度相机获得站立或跌倒的人的骨骼图像。然后我们得到这些图像的特征量,并通过ML对它们进行训练,得到训练模型。最后,利用FFT对图像进行加密和检测。我们构建了一个包含1131张图像的训练数据库,对图像的实验评估表明,我们的算法在检测跌倒和保护隐私方面是有效的。
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引用次数: 17
Alternative Selection of Sea Platform Considering Multi-perspective Indices 考虑多视角指标的海上平台方案选择
Pub Date : 2018-08-01 DOI: 10.1109/ICAMECHS.2018.8507111
Ye Chen, Guangdong Tian, Fangwu Ma, Yongfeng Pu
The optimization of the offshore platform scheme has been recognized as one of the most significant phases in the construction of the offshore platform, because it determines the direction of the optimal design of the offshore platform structure. However, to select the optimal one among several schemes, a comprehensive evaluation of the estimated values of multiple attributes must be performed, which is difficult because the estimation of attributes is inaccurate and the evaluation needs to be combined with the expert's preference. This paper proposes a framework combining Analytic Hierarchy Process (AHP) with Grey Relational Analysis (GRA) to solve the problem of optimization of offshore platform scheme. An AHP is presented to determine the weight of each evaluation criterion. Then, using GRA to determine the best of the four to-be-evaluated schemes. Conducting a case study to verify the performance of the proposed method. The results show that the proposed multi -attribute decision theory can decide the best design alternative.
海洋平台方案优化决定着海洋平台结构优化设计的方向,是海洋平台建设中最为重要的环节之一。然而,要在多个方案中选择最优方案,必须对多个属性的估计值进行综合评价,这是一个困难的问题,因为属性的估计是不准确的,而且评价需要结合专家的偏好。本文提出了一种层次分析法与灰色关联分析法相结合的框架来解决海洋平台方案优化问题。采用层次分析法确定各评价指标的权重。然后,利用GRA法确定四种待评价方案中的最佳方案。进行案例研究以验证所建议方法的性能。结果表明,所提出的多属性决策理论能够确定最佳设计方案。
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引用次数: 0
Short-term Wind Speed Forecasting Model Based on Spiking Neural Network 基于峰值神经网络的短期风速预测模型
Pub Date : 2018-08-01 DOI: 10.1109/ICAMECHS.2018.8507102
Fengyang Han, Runmin Li, D. Qian
Short-term wind speed forecasting plays an important role in the daily power system operation. Therefore, this paper presents a novel model based on spiking neural network (SNN) used spike response model (SRM). Further, to achieve both smaller training errors and higher precision forecasting, the basic SpikeProp learning algorithm is improved by adaptively adjusting the learning rate and adding momentum items. Then, this paper selects the actual sampling data from a wind farm to verify the effectiveness and advantages of the proposed model.
短期风速预报在电力系统的日常运行中起着重要的作用。为此,本文提出了一种基于尖峰响应模型(SRM)的尖峰神经网络(SNN)模型。进一步,为了实现更小的训练误差和更高的预测精度,通过自适应调整学习率和增加动量项来改进基本的SpikeProp学习算法。然后,选取了某风电场的实际采样数据,验证了所提模型的有效性和优越性。
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引用次数: 3
Adaptive position estimation and control for permanent magnet synchronous motor 永磁同步电机自适应位置估计与控制
Pub Date : 2018-08-01 DOI: 10.1109/ICAMECHS.2018.8507034
Shengjun Wen, Tongwei Liang, Peixue Wang
In this paper, a sensorless technology based on adaptive estimation is presented for the full-speed range control of a permanent magnet synchronous motor, where the traditional mechanical sensor is replaced by estimating the motor position and speed. The motor initial position is detected by using a rotating high frequency voltage injection method, and the motor speed is estimated by adjustable model method. The error of the rotor initial position is smaller than 0.2 % and the rotor speed estimation error is controlled within 0.7%.
本文提出了一种基于自适应估计的无传感器永磁同步电机全速范围控制技术,将传统的机械传感器替换为对电机位置和速度的估计。采用旋转高频电压注入法检测电机初始位置,采用可调模型法估计电机转速。转子初始位置误差小于0.2%,转子转速估计误差控制在0.7%以内。
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引用次数: 0
期刊
2018 International Conference on Advanced Mechatronic Systems (ICAMechS)
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