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Flying Capacitor Voltage Balancing Control Strategy Based on Logic-equations in Five Level ANPC Inverter 基于逻辑方程的五电平ANPC逆变器飞电容电压平衡控制策略
Q3 Computer Science Pub Date : 2023-07-07 DOI: 10.3311/ppee.21879
Abderrahmane Redouane, R. Saou, A. Oukaour
This paper proposes a novel voltage balancing control approach for the flying capacitors in a five-level Active-Neutral-Point-Clamped inverter (ANPC). The projected method is based on the control signal of the flying capacitor (FC) voltage. A Staircase reference voltage-based Phase-Shifted PWM (PS-PWM) technique is used to generate the different levels and simple logic-equations. The proposed control can regulate the voltage of the FC at the requested reference value and generate the required five-level output voltage with fast dynamics. It requires fewer and simpler calculations and it has a fast execution time. The Simulations are performed using MATLAB and Simulink. The obtained results demonstrate the good performance of the FC voltage control and the high quality of the output voltages and current spectrum.
针对五电平有源中性点箝位逆变器中的飞驰电容器,提出了一种新的电压平衡控制方法。所投影的方法是基于飞驰电容器(FC)电压的控制信号。基于阶梯参考电压的移相PWM(PS-PWM)技术用于生成不同的电平和简单的逻辑方程。所提出的控制可以将FC的电压调节在所要求的参考值,并以快速的动态产生所需的五电平输出电压。它需要更少、更简单的计算,并且执行时间很快。使用MATLAB和Simulink进行仿真。所得结果表明,FC电压控制具有良好的性能,输出电压和电流谱具有较高的质量。
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引用次数: 0
Robust Aerodynamic Parameter Estimation of Unmanned Aircraft Based on Two-step Identification 基于两步辨识的无人机气动参数鲁棒估计
Q3 Computer Science Pub Date : 2023-06-26 DOI: 10.3311/ppee.21948
Stephen Muchai Kimathi, B. Lantos
This paper presents the estimation of stability and control derivatives of an unmanned aircraft. The aerodynamics are described using regressors composed of velocity, angular rates, flow angles and control surface deflections. The flight data is generated from numerical simulation of postulated equations of motion describing the aerodynamics model. Least squares based on the equation error method is used to estimate the parameters representing the different force and moment aerodynamic coefficients. Statistical analysis is done on the estimates to determine the accuracy and adequacy of the estimates to describe the aerodynamic model. A dynamic simulation based on the identified aerodynamic model is used to improve the parameter estimates through regression of the errors between the flight data and the model response. The aircraft under consideration is a scaled Yak-54 fixed wing unmanned aerial vehicle.
本文研究了无人飞行器的稳定性和控制导数估计问题。空气动力学用由速度、角率、气流角和控制面偏转组成的回归量来描述。飞行数据是由描述空气动力学模型的假定运动方程的数值模拟产生的。采用基于方程误差的最小二乘方法估计了代表不同力和力矩气动系数的参数。对估计进行了统计分析,以确定估计的准确性和充分性,以描述气动模型。基于所识别的气动模型进行了动力学仿真,通过回归飞行数据与模型响应之间的误差来改进参数估计。正在考虑的飞机是雅克-54固定翼无人机。
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引用次数: 0
Design for Integrated Planar Spiral Inductor for MEMS MEMS集成平面螺旋电感的设计
Q3 Computer Science Pub Date : 2023-06-21 DOI: 10.3311/ppee.21666
Y. Benhadda, M. Derkaoui, K. Mendaz, Hayet Kharbouch, P. Spitéri
The main aim of this paper is to present the new design of an integrated planar spiral inductor with a new structure of an underpass to obtain a high inductance, high quality factor and minimum losses into winding and magnetic core. The performance of this structure dependent on the geometrical, electrical parameters and material properties. These parameters are calculated at 350 MHz and this is the high frequency used for MEMS applications. Furthermore, thermal analysis in inductor from finite difference method is described. The heat transfer model is based on heat conduction and heat convection. Moreover, the heat source is calculated by different losses. In addition, the simulation results from 3D finite element method using software also been presented in this paper. It is based on both the classical heat equation and certain condition limits. However, a new design of an underpass has been proposed where a via is fabricated with a circular layer. The input and output of the spiral are implanted in the same direction. In addition, the magnetic core is the solution to decrease the temperature. Finally, the results of the finite difference method are compared with simulation results from finite element method. The good agreement between the results is obtained. The proposed via and a core magnetic are responsible for enhancement the thermal behavior in integrated inductor. The result shows that the temperature of the air core inductor and magnetic core inductor could be 53 °C and 33 °C, respectively.
本文的主要目的是提出一种集成平面螺旋电感器的新设计,该电感器具有新的通道结构,以获得高电感、高品质因数和最小的绕组和磁芯损耗。这种结构的性能取决于几何、电气参数和材料特性。这些参数是在350MHz下计算的,这是用于MEMS应用的高频。此外,还介绍了用有限差分法对电感的热分析。传热模型基于热传导和热对流。此外,热源是通过不同的损失来计算的。此外,本文还介绍了利用软件进行三维有限元模拟的结果。它基于经典的热方程和某些条件限制。然而,已经提出了一种新的地下通道设计,其中通孔是用圆形层制造的。螺旋的输入和输出是在同一方向上植入的。此外,磁芯是降低温度的解决方案。最后,将有限差分法的结果与有限元法的模拟结果进行了比较。结果之间取得了良好的一致性。所提出的过孔和核心磁体负责增强集成电感器中的热行为。结果表明,空心电感和磁芯电感的温度分别为53°C和33°C。
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引用次数: 0
Sliding Input Output Control of Squirrel Cage Motor Based NPC Five Level Inverter 基于NPC五电平逆变器的鼠笼电机滑动输入输出控制
Q3 Computer Science Pub Date : 2023-06-13 DOI: 10.3311/ppee.21598
K. Mendaz, H. Miloudi, Khadidja Younes
Speed squirrel cage motor control is an area of research that has been in evidence for some time now. In this paper, a nonlinear controller is presented for the squirrel cage motor drives, based on a combination between input-output feedback linearization control (IOLC) technique and sliding mode control (SMC) to create a new control which is sliding input-output linearization (SIOLC) control of squirrel cage motors which associates by an NPC five levels inverter PWM technical used for the variation of its speed, where the sliding mode control it used for controlling the speed of squirrel cage motor and the input-output linearization control applied for two input witch are flux and current. To test robustness and performance of sliding input-output linearization control (SIOLC) we created a variation of internal parameters of the motor. The simulation results show robustness the sliding input-output linearization control of squirrel cage motor responses.
速度鼠笼电机控制是一个研究领域,已经证明了一段时间了。本文基于输入输出反馈线性化控制(IOLC)技术和滑模控制(SMC)技术的结合,提出了一种用于鼠笼电机驱动的非线性控制器,即鼠笼电机的滑动输入输出线性化(SIOLC)控制,该控制采用NPC五电平逆变PWM技术,用于鼠笼电机的转速变化。其中滑模控制用于控制鼠笼式电动机的速度,输入输出线性化控制用于两个输入开关:磁通和电流。为了测试滑动输入输出线性化控制(SIOLC)的鲁棒性和性能,我们创建了电机内部参数的变化。仿真结果表明,所提出的滑模输入输出线性化控制方法具有鲁棒性。
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引用次数: 0
Optimizing Multiple Beam Patterns for 5G mmWave Phased Array Applications 优化5G毫米波相控阵应用的多波束方向图
Q3 Computer Science Pub Date : 2023-06-08 DOI: 10.3311/ppee.22111
J. Mohammed
In this paper, a new technique for shaping multiple beam patterns antenna arrays for 5G and beyond wireless massive MIMO communication systems is introduced. The technique aims to concentrate the radio energy in specific coverage areas with a desired shape by optimizing the excitation amplitudes and phases of the array elements. To assess the proposed technique, both genetic algorithm and particle swarm optimization are utilized to optimize the excitation amplitudes and phases of the array elements such that the required number of the beams, their shapes, their directions, their power magnitudes, and the desired sidelobe pattern can be achieved. Simulation results fully confirm the effectiveness of the proposed technique in generating optimized shaped patterns that can be suitably used for distributing the radiation powers over the coverage areas in the mobile communication base stations.
本文介绍了一种用于5G及以后无线大规模MIMO通信系统的多波束方向图天线阵列整形新技术。该技术旨在通过优化阵列元件的激励幅度和相位,将无线电能量集中在具有所需形状的特定覆盖区域。为了评估所提出的技术,利用遗传算法和粒子群优化来优化阵列元件的激励幅度和相位,从而可以实现所需的波束数量、波束形状、波束方向、波束功率大小和所需的旁瓣方向图。仿真结果充分证实了所提出的技术在生成优化形状图案方面的有效性,该优化形状图案可以适当地用于在移动通信基站的覆盖区域上分配辐射功率。
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引用次数: 0
A Collaborative Graph-based SLAM Framework Using a Computationally Effective Measurement Algebra 基于计算有效度量代数的协作图SLAM框架
Q3 Computer Science Pub Date : 2023-06-05 DOI: 10.3311/ppee.21358
Gábor Péter, B. Kiss
Simultaneous localization and mapping (SLAM) is an essential task for autonomous rover navigation in an unknown environment, especially if no absolute location information is available. This paper presents a computationally lightweight framework to enable agents with limited processing power to carry out the SLAM cooperatively and without absolute onboard localization sensors in a 2D environment. The proposed solution is built on a graph-based map representation, where nodes (resp. edges) represent landmarks (resp. odometry-based relative measurements), a measurement algebra with embedded uncertainty, and a compact database format that could be stored on a server in a centralized manner. The operations required by the agents to insert a new landmark in the graph, update landmark positions and combine measurements as a loop is closed in the graph are detailed. The resulting framework was tested in a laboratory environment and on a public dataset with encouraging results; hence our method can be used for cost-effective indoor mobile agents with limited computational resources and onboard sensors to achieve a mapping while keeping track of the agent's position. The method can also be easily generalized for a 3D scenario.
同时定位与绘图(SLAM)是无人漫游车在未知环境下导航的一项重要任务,特别是在没有绝对位置信息的情况下。本文提出了一种计算轻量级框架,使处理能力有限的智能体能够在没有绝对机载定位传感器的情况下在二维环境中协同执行SLAM。提出的解决方案构建在基于图的映射表示上,其中节点(如:边)表示地标(如:基于里程计的相对测量),具有嵌入式不确定性的测量代数,以及可以以集中方式存储在服务器上的紧凑数据库格式。详细介绍了agent在图中插入新地标、更新地标位置以及在图中闭合环路时合并测量值所需的操作。由此产生的框架在实验室环境和公共数据集上进行了测试,取得了令人鼓舞的结果;因此,我们的方法可以用于具有成本效益的室内移动代理,在有限的计算资源和机载传感器下实现映射,同时保持对代理位置的跟踪。该方法也可以很容易地推广到3D场景。
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引用次数: 0
Numerical Study of Half Wavy and Half W-type Collecting Plates on the Characteristics of Electrostatic Precipitators 半波浪形和半w型集尘板对静电除尘器特性的数值研究
Q3 Computer Science Pub Date : 2023-05-31 DOI: 10.3311/ppee.21956
Angel Asipuela, T. Iváncsy
Many industries rely heavily on ESPs (electrostatic precipitators). They exist primarily as air filters to prevent hazardous particles from entering the environment. Duct-type ESPs are widely used, have a simple design, and rely on corona wires and collecting plates as their primary arrangement. Numerous studies have been conducted to demonstrate that changing the geometrical shape can aid in improving particle collection efficiency. Wavy plates, W-types, and other designs, for example, have shown to improve particle collection efficiency in a positive degree. The goal of this study is to see what happens when two different types of collecting plates are combined and used together. The proposal is to combine half wavy and half W-type collecting plates and examine them with corona wires with circular shapes. As a result, after completing the numerical study and comparing the results, it is clear that the levels of particle collection efficiency for the various particle sizes have increased with this proposed design. Furthermore, six cases are presented with this design, and the results describe the electrical properties and their magnitude distributions. In fact, in all of the cases presented, this type of combination increased particle collection efficiency.
许多行业严重依赖于esp(静电除尘器)。它们主要作为空气过滤器存在,以防止有害颗粒进入环境。导管式电火花发生器应用广泛,设计简单,主要依靠电晕导线和收集板作为其主要布置。大量的研究表明,改变几何形状有助于提高颗粒收集效率。例如,波浪板,w型和其他设计已显示出在一定程度上提高颗粒收集效率。这项研究的目的是看看当两种不同类型的收集板组合在一起使用时会发生什么。建议将半波浪形和半w形集电极组合在一起,用圆形的电晕导线进行检测。因此,在完成数值研究并比较结果后,可以清楚地看到,采用这种设计,不同粒径的颗粒收集效率水平都有所提高。在此基础上,给出了六种情况下的电学特性及其幅度分布。事实上,在所有的案例中,这种组合都提高了颗粒收集效率。
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引用次数: 0
Backstepping Based Grey Wolf and DPC for Power Quality Improvement and Active Power Injection in PV Grid-connected System Based on Interleaved Boost Converter 基于灰狼回溯和DPC的交错升压变换器光伏并网系统电能质量改善和有功功率注入
Q3 Computer Science Pub Date : 2023-05-25 DOI: 10.3311/ppee.21852
Oussama Mohamed Cherif Daia Eddine, A. Chebabhi, A. Kessal
This research offers the backstepping based grey wolf control design for a multifunctional PV grid-connected system (MPGC) based on four phases interleaved boost converter. This work proposes a solution to the issues of harmonic mitigation, reactive power compensation, and PV-generated power injection into the grid-based MPGC. The interleaved boost converter (IBC), controlled using maximum power point tracking (MPPT), is utilized to harvest the photovoltaic (PV) system's peak power and overcome the conventional topology's drawbacks. Direct power control (DPC) based on space-vector pulse width modulation (SVPWM) is used to control the instantaneous power of the MPGC, and the backstepping control (BSC) is applied to the whole system to maintain the robustness and stability of the suggested method. The Grey Wolf Optimizer (GWO) optimized the system's dynamic response by adjusting the BSC parameters. The results were obtained using MATLAB/Simulink software. The suggested work shows excellent performance based on the obtained results, achieving the sinusoidal waveform of the currents and a unity power factor. Total harmonic distortion (THD) has been decreased below 5% in accordance with IEEE 519-2014 standard.
针对基于四相交错升压变换器的多功能光伏并网系统,提出了基于回溯法的灰狼控制设计。这项工作提出了一个解决谐波缓解、无功补偿和光伏发电功率注入到基于电网的MPGC问题的解决方案。利用最大功率点跟踪(MPPT)控制的交错升压变换器(IBC)可以获取光伏(PV)系统的峰值功率,克服传统拓扑结构的缺点。采用基于空间矢量脉宽调制(SVPWM)的直接功率控制(DPC)控制MPGC的瞬时功率,并将反步控制(BSC)应用于整个系统,以保持该方法的鲁棒性和稳定性。灰狼优化器(GWO)通过调整平衡计分卡参数来优化系统的动态响应。利用MATLAB/Simulink软件进行仿真计算。根据得到的结果,建议的工作表现出优异的性能,实现了电流的正弦波形和统一的功率因数。根据IEEE 519-2014标准,总谐波失真(THD)降低到5%以下。
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引用次数: 0
Exploring the Use of Particle and Kalman Filters for Obstacle Detection in Mobile Robots 探索粒子滤波和卡尔曼滤波在移动机器人障碍物检测中的应用
Q3 Computer Science Pub Date : 2023-05-22 DOI: 10.3311/ppee.21969
Z. Gyenes, Ladislau Bölöni, Emese Gincsainé Szádeczky-Kardoss
The present study aims to explore the adaptation of estimation methodologies, specifically Particle filters and Kalman filters, for the purpose of determining the position and velocity vector of obstacles within the operational workspace of mobile robots. These algorithms are commonly employed in the motion planning tasks of mobile robots for the estimation of their own position. The proposed methodology utilizes LiDAR sensor data to estimate the position vectors and calculate the velocity vectors of obstacles. Additionally, an uncertainty parameter can be determined using the introduced perception method. The performance of the newly adapted algorithms is evaluated through comparison of the absolute error in position and velocity vector estimations.
本研究旨在探索估计方法的适应性,特别是粒子滤波和卡尔曼滤波,以确定移动机器人操作工作空间内障碍物的位置和速度矢量。这些算法通常用于移动机器人的运动规划任务中,用于估计自身的位置。该方法利用激光雷达传感器数据估计障碍物的位置矢量和计算障碍物的速度矢量。此外,利用引入的感知方法可以确定不确定性参数。通过位置矢量估计和速度矢量估计的绝对误差比较,评价了新算法的性能。
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引用次数: 0
Experimental Investigation of DFIG-based Wind Energy Conversion System Using Fuzzy Logic Control 基于dfig的模糊逻辑控制风能转换系统实验研究
Q3 Computer Science Pub Date : 2023-05-17 DOI: 10.3311/ppee.21233
M. Hallouz, N. Kabeche, S. Moulahoum, Z. Kechidi
In this paper, an experimental study of a Wind Energy Conversion System (WECS) is performed. A test bench with a power of 1.5 kW is setup. The system consists of a Doubly-Fed Induction Generator (DFIG) and a wind emulator based on a DC motor associated with a Maximum Power Point Tracking (MPPT) control. The proposed emulator is driven by a four quadrants DC/DC converter to produce a real wind turbine behavior. The aim of this work is to improve the DIFG performances by using the fuzzy logic-based intelligent controller. This control technic is designed to monitor the stator reactive and active powers. This can be achieved by the DFIG rotor side converter (RSC) using the field-oriented control. The experimental setup uses a dSPACE DS1104 device, MATLAB/Simulink software and a ControlDesk interface. The paper shows that, the desired amount of active and reactive powers has been independently controlled and the implementation is successfully verified the effectiveness of the proposed control scheme achieved using the FLC strategy.
本文对风能转换系统(WECS)进行了实验研究。建立了功率为1.5 kW的试验台。该系统由一个双馈感应发电机(DFIG)和一个基于直流电机的风模拟器组成,该模拟器与最大功率点跟踪(MPPT)控制相关联。该仿真器由四象限DC/DC变换器驱动,以模拟真实的风力机行为。本文的目的是利用基于模糊逻辑的智能控制器来提高DIFG的性能。该控制技术用于监测定子无功和有功功率。这可以通过采用磁场定向控制的DFIG转子侧变换器(RSC)来实现。实验装置采用dSPACE DS1104器件、MATLAB/Simulink软件和ControlDesk接口。结果表明,所提出的有功功率和无功功率均可独立控制,并成功地验证了采用FLC策略实现的控制方案的有效性。
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引用次数: 0
期刊
Periodica polytechnica Electrical engineering and computer science
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