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IECON 2021 – 47th Annual Conference of the IEEE Industrial Electronics Society最新文献

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Doubly Fed Induction Generator with Multi-Vector Model Predictive Power Control 双馈感应发电机多向量模型预测功率控制
Pub Date : 2021-10-13 DOI: 10.1109/IECON48115.2021.9589094
M. E. Zarei, M. Prodanović, D. Ramírez
This paper presents a simple multi-vector model predictive power control (MV-MPPC) strategy for the rotor side converter (RSC) of a doubly fed induction generator (DFIG). In this strategy, the stator active and reactive power derivatives for the three vectors are estimated for the upcoming period and the duration time of these vectors is predicted according to a cost function. The objective of the cost function is to decrease the stator power errors. The proposed model predictive control is validated in Matlab/Simulink environment and in the laboratory for a 5 KW DFIG prototype. The simulation and experimental results showed that the proposed method has a fast dynamic response to the power and rotor speed changes and it has a constant switching frequency.
针对双馈感应发电机(DFIG)转子侧变换器(RSC),提出了一种简单的多向量模型预测功率控制(MV-MPPC)策略。在该策略中,估计三个矢量在未来一段时间内的定子有功和无功导数,并根据成本函数预测这些矢量的持续时间。成本函数的目的是减小定子的功率误差。在Matlab/Simulink环境和实验室中对5kw DFIG样机进行了模型预测控制的验证。仿真和实验结果表明,该方法对功率和转子转速变化有较快的动态响应,且开关频率恒定。
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引用次数: 0
Partial power differential-mode inverter for photovoltaic microinverter applications 部分功率差模逆变器用于光伏微逆变器的应用
Pub Date : 2021-10-13 DOI: 10.1109/IECON48115.2021.9589193
D. Lopez, N. Muller, H. Renaudineau, S. Kouro, José Raúl Rodríguez Rodríguez
Differential-mode inverter is an attractive solution for photovoltaic (PV) microinverter applications since this structure allows to perform both voltage elevation and grid connection in a single conversion stage. In this paper a partial power differential mode inverter (PPDMI) is proposed. It is demonstrated that by using two partial power converter, the proposed solution allows to reduce the power rating of the structure by 15% in comparison to full-power structure. Moreover, averaged power processed by the converter is also reduced by 33%. In order to validate the proposed converter a PV microinverter realized with a flyback-based PPDMI has been simulated. The results show the attractiveness of the solution with estimated efficiency reaching 94.6%.
差模逆变器是光伏(PV)微型逆变器应用的一个有吸引力的解决方案,因为这种结构允许在单个转换阶段同时执行电压提升和电网连接。本文提出了一种部分功率差模逆变器(PPDMI)。结果表明,与全功率结构相比,通过使用两个部分功率转换器,所提出的解决方案可以将结构的额定功率降低15%。此外,变换器处理的平均功率也降低了33%。为了验证所提出的变换器的有效性,对一个基于反激式PPDMI实现的光伏微型逆变器进行了仿真。结果表明,该方案具有较好的吸引力,估计效率可达94.6%。
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引用次数: 1
Speed, EMF and Rotor Position Estimation of PMSM using Phase Locked Loop and Simple Sliding Mode Observer 基于锁相环和简单滑模观测器的永磁同步电机速度、电动势和转子位置估计
Pub Date : 2021-10-13 DOI: 10.1109/IECON48115.2021.9589832
M. Comanescu
The paper presents a simple method to estimate the quantities needed for implementation of sensorless control for the Permanent Magnet Synchronous Motor (PMSM). In sensorless control, the speed, EMFs and rotor position of the motor need to be estimated using the terminal quantities (measured voltages and currents). The paper proposes a sequential estimation approach: the speed is estimated first; then, it is used in the estimation of the EMFs and rotor position. The speed is obtained using a Phase Locked Loop (PLL) synchronized with the motor voltages. The PLL does not depend on the motor parameters and yields a speed estimate with guaranteed zero steady-state error. The availability of the motor speed allows to improve the estimation of the EMFs and rotor position using speed dependent gains and angle correction. The paper presents a simple sliding mode observer whose estimation accuracy is improved using the speed estimate. The results are validated with simulations. The method presented is simple and easy to implement. The estimators presented are reliable, accurate, depend on a minimal set of parameters and yield zero steady-state error.
本文提出了一种估算实现永磁同步电机无传感器控制所需量的简单方法。在无传感器控制中,需要使用终端数量(测量电压和电流)来估计电机的速度,emf和转子位置。本文提出了一种序贯估计方法:首先估计速度;然后,将其应用于电磁场和转子位置的估计。速度是通过与电机电压同步的锁相环(PLL)获得的。锁相环不依赖于电机参数,产生一个保证零稳态误差的速度估计。电机速度的可用性允许使用速度相关增益和角度校正来改善emf和转子位置的估计。本文提出了一种简单的滑模观测器,利用速度估计提高了其估计精度。仿真结果验证了结果的正确性。该方法简单,易于实现。所提出的估计器可靠、准确,依赖于最小的参数集,稳态误差为零。
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引用次数: 3
Dynamic Modeling and Online Parameter Identification of a Coupled-Inductor-Based DC-DC Converter with Leakage Inductance Effect Consideration 考虑漏感效应的耦合电感型DC-DC变换器动态建模及在线参数辨识
Pub Date : 2021-10-13 DOI: 10.1109/IECON48115.2021.9589404
Amir Farakhor, H. Fang
In this paper, the dynamic modeling of a coupled-inductor-based DC-DC converter is investigated. Due to the time varying characteristics of converter parameters such as the output load and input voltage, the operating point of the converter changes within time. Therefore, traditional small signal modeling approaches are not accurate since the converter is linearized around a specific operating point. This paper seeks to address this problem by employing an online parameter identification technique to dynamically estimate the parameters. The identification is achieved through Kalman filtering. First, the small signal modeling of the converter is derived including the leakage inductance effect. Then, the Kalman filter is improved and applied to identify the control-to-output transfer function parameters. Extensive simulation results are provided to validate the robust and proper operation of presented modeling procedure.
本文研究了基于耦合电感的DC-DC变换器的动态建模问题。由于变换器的输出负载、输入电压等参数具有时变特性,变换器的工作点随时间变化。因此,传统的小信号建模方法是不准确的,因为转换器是围绕一个特定的工作点线性化的。本文试图通过采用在线参数识别技术来动态估计参数来解决这一问题。通过卡尔曼滤波实现识别。首先,建立了考虑漏感效应的变换器小信号模型。然后,对卡尔曼滤波进行改进,并应用于控制-输出传递函数参数的辨识。大量的仿真结果验证了所提出的建模方法的鲁棒性和正确性。
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引用次数: 0
A Neural Network Approach for Efficient Finite Control Set MPC of Cascaded H-Bridge STATCOM 级联h桥STATCOM高效有限控制集MPC的神经网络方法
Pub Date : 2021-10-13 DOI: 10.1109/IECON48115.2021.9589942
Francesco Simonetti, G. D. D. Girolamo, A. D’innocenzo, Carlo Cecati
Finite Control Set Model Predictive Control is an effective technique which attracted attention in the latest years thanks to its fast dynamic response and the fact that it does not require a modulation. However, when applied to multilevel converters, it requires a large amount of calculations that may affect implementability. On the other hand, Neural Networks are well known Machine Learning techniques that can be efficiently implemented in real-time applications thanks to their massive parallelism capability. This work proposes a novel Finite Control Set Model Predictive Control approach based on Neural Networks with reduced computational time complexity for a Cascaded H-Bridge Static Synchronous Compensator. Simulation results for a nine-level system are presented and a simulative comparison between our approach and classical methods for FCS is provided, showing that very similar performance can be achieved with strong reduction of the computational complexity.
有限控制集模型预测控制以其快速的动态响应和不需要调制而受到近年来的广泛关注。然而,当应用于多电平转换器时,它需要大量的计算,这可能会影响可实现性。另一方面,神经网络是众所周知的机器学习技术,由于其巨大的并行能力,可以在实时应用中有效地实现。本文提出了一种基于神经网络的有限控制集模型预测控制方法,降低了级联h桥静态同步补偿器的计算时间复杂度。最后给出了一个九级系统的仿真结果,并将该方法与经典的FCS方法进行了仿真比较,结果表明,在大大降低计算复杂度的情况下,可以获得非常相似的性能。
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引用次数: 1
Optimal robotic controller based on signals and data information with kinematic redundancy 基于运动冗余的信号和数据信息的最优机器人控制器
Pub Date : 2021-10-13 DOI: 10.1109/IECON48115.2021.9589750
Yair Casas Flores, C. Treesatayapun
A kinematic redundancy robot is considered as a class of unknown nonlinear discrete-time systems. The compact form dynamic linearization is firstly utilized to establish the equivalent model of the robotic system. Thereafter, the adaptive controller is derived by fuzzy rules emulated network while the learning law is designed to minimize both the tracking error and the control effort energy with the stability analysis. The experimental system is constructed to validate the performance of closed-loop systems.
将运动冗余机器人视为一类未知的非线性离散系统。首先利用紧凑形式的动态线性化方法建立机器人系统的等效模型。然后,利用模糊规则仿真网络推导出自适应控制器,同时设计学习律,通过稳定性分析使跟踪误差和控制努力能量最小化。为了验证闭环系统的性能,建立了实验系统。
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引用次数: 0
Comprehensive Analysis on the Imbalance of Voltage and Current in Multi-module Series-parallel WPT Systems 多模块串并联WPT系统电压电流不平衡的综合分析
Pub Date : 2021-10-13 DOI: 10.1109/IECON48115.2021.9589755
Shuci Yu, Fuxin Liu, Minghua Zhou, Xuling Chen
Multi-module series-parallel (MMSP) power systems have the superiority of easy scalability and high reliability, and is the prospective candidate for high-power conversion. In this paper, the MMSP configuration is implemented in wireless power transfer (WPT) applications. However, the voltage and current sharing issues have not been analyzed precisely in existing researches. To obtain the inherent principle of voltage and current sharing in the MMSP WPT system, the dual-module series-parallel WPT systems with four configurations are studied as examples. By the fundamental harmonic analysis, the characteristics of a WPT module are obtained, and then the imbalance mechanism of voltage and current under four kinds of parameters mismatches are revealed. The results of circuit simulation verify the correctness of the theoretical analysis.
多模块串并联(MMSP)电源系统具有易于扩展和高可靠性的优点,是大功率转换的理想选择。在本文中,MMSP配置在无线电力传输(WPT)应用中实现。然而,现有的研究并没有对电压和电流的共享问题进行精确的分析。为了获得MMSP WPT系统固有的电压和电流共享原理,以四种配置的双模串并联WPT系统为例进行了研究。通过基频分析,得到了WPT模块的特性,揭示了四种参数失配情况下电压和电流的不平衡机理。电路仿真结果验证了理论分析的正确性。
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引用次数: 1
A Genetic Algorithm based Scheduling Method for Automotive Ethernet 基于遗传算法的汽车以太网调度方法
Pub Date : 2021-10-13 DOI: 10.1109/IECON48115.2021.9589998
Hyeong-Jun Kim, Kyoung-Chang Lee, Suk Lee
Time-sensitive networking (TSN), which is well known as one of deterministic Ethernet, can ensure a real-time property of time-critical traffic by providing various standards. In particular, IEEE 802.1Qbv, which is one of the standards about TSN, can minimize a problem that occurred due to delay by ensuring the real-time transmission of a message that has high priority through scheduling. However, because scheduling messages in TSN is an NP-hard problem as same as the job schedule in a manufacturing process, an optimal schedule is needed to solve the problem. This study proposed a method to optimize a time-critical traffic schedule in TSN using a genetic algorithm. A chromosome in the genetic algorithm consists of messages to be scheduled, and schedules are created by the order of messages arranged in a chromosome. The performance of the chromosome is evaluated through the fitness function, which uses three performance indicators (end-to-end delay, jitter, and bandwidth utilization for guard band) as parameters. Finally, the proposed schedule optimization algorithm was performed over a simulation environment that simulated a real autonomous driving vehicle network to verify the applicability.
时间敏感网络(TSN)被称为确定性以太网的一种,它通过提供各种标准来保证时间关键型流量的实时性。特别是关于TSN的标准之一IEEE 802.1Qbv,可以通过调度保证高优先级消息的实时传输,从而最大限度地减少由于延迟而产生的问题。然而,由于TSN中的消息调度与制造过程中的作业调度一样是np困难问题,因此需要一个最优调度来解决该问题。提出了一种基于遗传算法的TSN时间关键型交通调度优化方法。遗传算法中的染色体由待调度的消息组成,而调度是由染色体中排列的消息的顺序来创建的。通过适应度函数评估染色体的性能,适应度函数使用三个性能指标(端到端延迟、抖动和保护带带宽利用率)作为参数。最后,在模拟真实自动驾驶车辆网络的仿真环境中,验证了所提调度优化算法的适用性。
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引用次数: 4
A decoupled Nearest Level Control for a Modular Multilevel Cascade Converter based on Triple Star Bridge Cells (MMCC-TSBC) 基于三星桥单元(MMCC-TSBC)的模块化多电平串级变换器解耦最近电平控制
Pub Date : 2021-10-13 DOI: 10.1109/IECON48115.2021.9589178
Mohammed Azharuddin Shamshuddin, David Arancibia, F. Rojas, J. Pereda, R. Kennel
The Modular Multilevel Matrix Converter (M3C), also known as Triple Star Bridge Cells (TSBC) converter from the family of Modular Multilevel Cascade Converter (MMCC) has attracted attention in medium/high voltage, high power applications. Recent research has identified its potential for various direct high power AC/AC conversion applications due to its modularity, redundancy and high power quality. However, it suffers from cross-coupling while utilising low/fundamental frequency switching techniques such as Nearest Level Control (NLC) along with the double αβo transformation. This article proposes a decoupling approach to eliminate the coupling effect and low frequency oscillation at the output port for implementation of NLC in an MMCC-TSBC converter.
模块化多电平矩阵变换器(M3C),也称为三星桥单元(TSBC)变换器,是模块化多电平级联变换器(MMCC)家族中的一种,在中高压、高功率应用中引起了人们的关注。最近的研究表明,由于其模块化、冗余和高功率质量,它具有各种直接大功率AC/AC转换应用的潜力。然而,在利用低/基频开关技术(如最近电平控制(NLC)和双αβo变换)时,它会受到交叉耦合的影响。为实现MMCC-TSBC变换器的NLC,本文提出了一种消除输出端耦合效应和低频振荡的解耦方法。
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引用次数: 0
Design and Analysis of a Double Coaxial Magnetic Coupling to Improve Torque Density 提高转矩密度的双同轴磁力联轴器设计与分析
Pub Date : 2021-10-13 DOI: 10.1109/IECON48115.2021.9589169
Y. Akcay, O. Tweedy, P. Giangrande, M. Galea
Coaxial magnetic couplings are an attractive alternative to traditional mechanical machine couplings which bring several desirable advantages but are limited by their relatively low torque density and torque to mass ratio. The optimum magnetic design of a coaxial magnetic coupling possesses a significant volume of inactive material due to the radius of the permanent magnet arrays. In this paper, the torque density of a coaxial magnetic coupling is increased by up to 82% by utilizing a second set of permanent magnet rings to form a double coaxial magnetic coupling. The proposed design enhancement achieves the aim of reducing the total volume of the coupling, whilst maintaining the same mass and peak torque transmission capacity.
同轴磁力联轴器是传统机械联轴器的一种有吸引力的替代品,它具有许多理想的优点,但受其相对较低的转矩密度和转矩质量比的限制。由于永磁体阵列的半径,同轴磁联轴器的最佳磁设计具有显著的非活性材料体积。本文利用第二组永磁环组成双同轴磁力联轴器,使同轴磁力联轴器的转矩密度提高了82%。提出的设计改进实现了减少联轴器总体体积的目标,同时保持相同的质量和峰值扭矩传输能力。
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引用次数: 1
期刊
IECON 2021 – 47th Annual Conference of the IEEE Industrial Electronics Society
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