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2023 IEEE Conference on Power Electronics and Renewable Energy (CPERE)最新文献

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CPERE 2023 Cover Page CPERE 2023封面页
Pub Date : 2023-02-19 DOI: 10.1109/cpere56564.2023.10119644
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引用次数: 0
Performance Investigation of Switched Reluctance Motor Drive System Under Firing Angles Variation 发射角变化下开关磁阻电机驱动系统性能研究
Pub Date : 2023-02-19 DOI: 10.1109/CPERE56564.2023.10119624
Arwa Abdelmaksoud, M. Gaafar, M. Orabi, Hao Chen, M. Dardeer
In average torque control system of switched reluctance motor (SRM), the phase currents are shaped to meet specific speed and torque. This should be realized at high efficiency and with low torque ripple over a wide range of operating conditions. In this context, the firing angles, turn-on ($theta_{on}$), turn-off ($theta_{off)}$, and accordingly dwell ($theta_{dwe}$n) angles, should be selected to maximize the performance of the motor at various operating conditions. Practically, optimization is used to determine the firing angles that are suitable for each operating point on the torque speed map. In this regard, many conflicting objectives should be considered when choosing the optimal conduction angles. Among these objectives, reducing the torque ripple and maximizing the torque per ampere are the most important. In this work, the effects of turn-on and turn-off angles on these objectives will be investigated. For this purpose, simulation two SRM converters are considered.
在开关磁阻电机的平均转矩控制系统中,相电流的形成是为了满足特定的转速和转矩。这应该在高效率和低扭矩脉动下实现在广泛的操作条件下。在这种情况下,应选择点火角,导通角($theta_{on}$),关断角($theta_{off)}$,以及相应的驻留角($theta_{dwe}$n),以最大限度地提高电机在各种工作条件下的性能。实际上,优化用于确定适合扭矩速度图上每个工作点的发射角。因此,在选择最佳传导角时,需要考虑许多相互冲突的目标。在这些目标中,减小转矩脉动和最大化每安培转矩是最重要的。在这项工作中,将研究打开和关闭角度对这些目标的影响。为此,模拟了两个SRM变换器。
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引用次数: 1
Proposal of Compact Active and Reactive Power Processing Circuit for RI-WPT Receivers RI-WPT接收机的紧凑型有功与无功处理电路的设计
Pub Date : 2023-02-19 DOI: 10.1109/CPERE56564.2023.10119609
Hoda Yassin, M. M. Samy, A. Shawky, M. Saad, M. Orabi, E. Alarcon
Wireless Power Transfer (WPT) concept has been realized through many technological methods to feed power in a cordless way in many applications. Among these various methods, Resonant Inductive Wireless Power Transfer RI-WPT has been extensively used to charge the batteries for consumer electronics such as smartwatches, mobile phones, and laptops. However, at high resonant frequency, this technology is vulnerable to the frequency variation in transmitter and receiver circuits, which results from components tolerance and other related factors. Frequency mismatch severely drops the conversion power efficiency and deteriorates the effectiveness of RI-WPT. To solve this issue, this paper proposes and verifies a novel active and reactive power control circuit at the receiver side of a wireless power transfer system. A 10W 127.7 kHz RIWPT receiver system is designed and verified against variations in compensation network elements, where 1. 3W is recovered after frequency re-tuning thanks to the proposed circuit.
无线电力传输(WPT)的概念已经通过多种技术手段实现,在许多应用中以无线方式供电。在这些方法中,共振感应无线电力传输RI-WPT已广泛用于智能手表,手机和笔记本电脑等消费电子产品的电池充电。然而,在高谐振频率下,该技术容易受到发射和接收电路中频率变化的影响,这是由于元件公差等相关因素造成的。频率失配严重降低了转换功率效率,降低了RI-WPT的有效性。为了解决这一问题,本文提出并验证了一种新型的无线电力传输系统接收端有功无功控制电路。设计了一种10W 127.7 kHz RIWPT接收机系统,并针对补偿网元的变化进行了验证。由于所提出的电路,频率重新调谐后恢复了3W。
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引用次数: 0
A Fit Model for Maximum Power Point Estimation in Dual-Input Phase-Shifted LLC Converter 双输入相移LLC变换器最大功率点估计的拟合模型
Pub Date : 2023-02-19 DOI: 10.1109/CPERE56564.2023.10119569
A. Hussein, Abdullah Alhatlani, Sumana Ghosh, I. Batarseh
This paper proposes a fit model for the output power as a function of switching frequency of a dual-input phaseshifted LLC converter. The proposed model can be used to allow fast and efficient maximum power point tracking (MPPT) of the converter. Derivation of the model followed by verification are presented.
本文提出了双输入移相LLC变换器输出功率随开关频率变化的拟合模型。该模型可实现快速高效的变换器最大功率点跟踪(MPPT)。给出了模型的推导和验证。
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引用次数: 0
DC/AC Conversion Topologies for Photovoltaic Applications 光伏应用的直流/交流转换拓扑
Pub Date : 2023-02-19 DOI: 10.1109/CPERE56564.2023.10119645
A. A. Ismail, Amgad El-Deib
The evolution of DC/AC conversion configurations for Photovoltaic (PV) applications started from the central inverter, string inverter, DC optimizer with central inverter to the microinverter. The evaluation of each configuration efficiency is a main concern due to the rising dependence on PV power plants. Besides, the fact that uneven solar irradiance levels and modules mismatch play an important role in defining the system efficiency. This paper compared the efficiency of the DC/AC conversion configurations: the string inverter, the DC optimizer and the microinverter. The efficiency was estimated based on the maximum power point tracking efficiency, power electronics stage efficiency and cable losses, where all of them were combined to estimate the configuration efficiency. SIMULINK was used to model each configuration and estimate the efficiency. The model main input was the solar irradiance of different shading patterns. The results showed that the microinverter has the highest efficiency at all shading patterns. However, at some patterns of irradiance levels, it competed with the DC optimizer configuration where they have close efficiencies. The string inverter results showed it significantly depends on the irradiance pattern where its efficiency can vary between 15%-95%.
光伏应用的直流/交流转换配置从中心逆变器、串逆变器、带中心逆变器的直流优化器到微型逆变器开始演变。由于对光伏电站的依赖日益增加,对每种配置效率的评估是一个主要问题。此外,太阳辐照度的不均匀和组件的不匹配对系统效率起着重要的作用。本文比较了直流/交流转换配置:串型逆变器、直流优化器和微型逆变器的效率。效率是根据最大功率点跟踪效率、电力电子阶段效率和电缆损耗来估计的,并将所有这些综合起来估计配置效率。利用SIMULINK对各配置进行建模,并对效率进行估算。模型的主要输入是不同遮阳模式下的太阳辐照度。结果表明,微逆变器在所有遮光模式下都具有最高的效率。然而,在某些模式的辐照水平,它与直流优化器配置竞争,他们有接近的效率。串逆变器的结果表明,它显著依赖于辐照模式,其效率可以在15%-95%之间变化。
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引用次数: 0
A Neural Network Model for Maximum Power Estimation in Dual-Input Phase-Shifted LLC Converter 双输入相移LLC变换器最大功率估计的神经网络模型
Pub Date : 2023-02-19 DOI: 10.1109/CPERE56564.2023.10119625
A. Hussein, Sumana Ghosh, Abdullah Alhatlani, I. Batarseh
This paper proposes a neural network model for the output power as a function of switching frequency of a dual-input phase-shifted LLC converter. The proposed model can be used to allow fast and efficient maximum power point tracking of the converter. Derivation of the model followed by verification are presented.
本文提出了双输入相移LLC变换器输出功率随开关频率变化的神经网络模型。该模型可用于快速有效地跟踪变换器的最大功率点。给出了模型的推导和验证。
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引用次数: 0
Power System Stability Enhancement Based Optimized PID controller using Archimedes optimization algorithm 基于阿基米德优化算法的电力系统稳定性增强优化PID控制器
Pub Date : 2023-02-19 DOI: 10.1109/CPERE56564.2023.10119588
D. Osheba, Mahmoud G. Hemeida, T. Senjyu, M. Hussein
power system always suffering from sudden changes which affect power system stability. In this study, a single machine infinite bus (SMIB) power system based nonlinear model has been studied with and without optimized power system stabilized (PSS). A new metaheuristic algorithm inspired from physics lows named Archimedes optimization algorithm (AOA) has been used to tune parameters of PSS based proportional integral derivative (PSS-PID) controller. Two types of disturbances have been simulated to measure the efficiency of the proposed techniques, electrical three phase short circuit fault at generator terminals and a mechanical disturbance on the rotor shaft. The SMIB based optimized PSSPID provides a stable system with lower oscillation and fast response. AOA greatly improve the characteristics of the system under study compared to manually tune optimized PSS-PID controller.
电力系统经常发生突变,影响系统的稳定性。本文研究了基于单机无限母线(SMIB)电力系统的非线性模型,并对有无优化电力系统稳定(PSS)进行了研究。提出了一种受物理学启发的元启发式算法——阿基米德优化算法(Archimedes optimization algorithm, AOA),用于基于比例积分微分(PSS- pid)控制器的参数整定。模拟了两种类型的干扰,即发电机终端的电气三相短路故障和转子轴上的机械干扰,以测量所提出技术的效率。基于SMIB优化的PSSPID系统具有稳定、振荡小、响应快的特点。与人工调优的PSS-PID控制器相比,AOA大大改善了被研究系统的特性。
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引用次数: 0
Photovoltaic Thermal (PVT) System Performance Analysis in Dhaka, Bangladesh for Different Flow Regimes Using Kerosene Oil-Based CNT Nanofluid 基于煤油的碳纳米管纳米流体在孟加拉国达卡不同流动状态下的光伏热(PVT)系统性能分析
Pub Date : 2023-02-19 DOI: 10.1109/CPERE56564.2023.10119533
S. Parvin, A. Azad
Recent price hikes for energy sources such as oil, gas, and electricity in Bangladesh will aggravate the country’s poverty and hunger. As a result, experts suggested reducing electricity production’s reliance on fossil fuels and promoting renewable and clean energy sources. As oil-based nanofluid makes nanofluid more stable and improves its thermophysical properties at higher temperature and pressure, in this study, kerosene oilbased CNT nanofluid is used as a coolant to compare the effects of different flow regimes (creeping flow, laminar flow, and transitional flow) on the performance of a flat plate PV/T collector in Dhaka, Bangladesh. Finite element-based software COMSOL Multiphysics of version 5.4 is used for varying solar irradiation $(200mathrm{W}/mathrm{m}^{2}leq mathrm{G}leq 1000mathrm{W}/mathrm{m}^{2})$. The wind velocity and ambient temperature are fixed at 2. $45mathrm{m}/mathrm{s}$ and $29^{0}mathrm{C}$ respectively, considering the Bangladeshi condition. Empirical outputs are collected from postprocessing and presented in 3D surface plot, table, and line diagram using Microsoft excel. The results suggested that transitional flow is the most efficient, followed by laminar flow. However, compared to creeping flow, the difference between laminar and transitional flow is less significant. This project will improve the performance of PVTs in Dhaka, Bangladesh, by discovering the most effective alternate electrical and thermal energy sources.
最近孟加拉国石油、天然气和电力等能源价格的上涨将加剧该国的贫困和饥饿。因此,专家建议减少电力生产对化石燃料的依赖,推广可再生能源和清洁能源。由于油基纳米流体使纳米流体在更高的温度和压力下更加稳定并改善其热物理性能,在本研究中,煤油基碳纳米管纳米流体被用作冷却剂,以比较不同流动方式(爬行流、层流和过渡流)对平板PV/T集热器性能的影响。基于有限元的软件COMSOL Multiphysics版本5.4用于变化太阳辐照$(200mathrm{W}/mathrm{m}^{2}leq mathrm{G}leq 1000mathrm{W}/mathrm{m}^{2})$。风速和环境温度固定为2。分别是$45mathrm{m}/mathrm{s}$和$29^{0}mathrm{C}$,考虑到孟加拉国的情况。从后处理中收集经验输出,并使用Microsoft excel以三维曲面图、表格和折线图的形式呈现。结果表明,过渡流效率最高,层流次之。但与爬行流相比,层流和过渡流之间的差异不太显著。该项目将通过发现最有效的替代电力和热能来源,提高孟加拉国达卡pvt的性能。
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引用次数: 0
Performance Comparison of Six-Phase PM Machine with Several Winding Layouts for EV Applications 电动汽车中几种绕组布局的六相永磁电机性能比较
Pub Date : 2023-02-19 DOI: 10.1109/CPERE56564.2023.10119595
Ahmed T. Abdel-Wahed, Mohamed Y. Metwly, A. Hemeida, A. Abdel-Khalik, M. Hamad, Shehab Ahmed
This paper presents integrated on-board battery charging of electric vehicles (EVs) utilizing a six-phase drivetrain; namely, a six-phase permanent magnet (PM) machine equipped with fractional slot concentrated winding (FSCW) and a six-phase inverter. Integrated chargers outperform conventional on-board battery chargers (OBCs) since they exploit the propulsion elements in the charging process, which yields a reduction in the cost and weight of the EVs. Various FSCW slot/pole combinations have shown promise in EV applications, such as 12-slot/l0-pole and 18-slot/l6-pole. However, six-phase windings, i.e., dual threephase (D3P), symmetrical six-phase (S6P), and asymmetrical sixphase (A6P), are not viable for all slot/pole combinations. For example, the six-phase 18-slot/l6-pole machine can only be configured with a D3P winding configuration. Moreover, it is proven in the literature that the A6P is better than the D3P under the EV charging process from the radial forces’ perspective. Thus, this paper presents a comprehensive comparison of two six-phase integrated battery chargers using surface-mount permanent magnet (SPM) machines with D3P and pseudo six-phase (P6P) winding arrangements. The machine is first designed based on the magnetic equivalent circuit (MEC) model and optimized based on multi-objective genetic algorithm (MOGA). Finally, finite element (FE) simulations have been carried out to assess the two winding layouts under both operational modes. The P6P winding layout outperforms the D3P in the propulsion mode, offering a6% torque density enhancement, and in the charging mode, offering a much lower radial force.
本文介绍了一种采用六相传动系统的电动汽车车载集成充电系统。即配备分数槽集中绕组(FSCW)的六相永磁(PM)电机和六相逆变器。集成充电器优于传统的车载电池充电器(OBCs),因为它们在充电过程中利用了推进元件,从而降低了电动汽车的成本和重量。各种FSCW槽/极组合在电动汽车应用中显示出前景,例如12槽/ 10极和18槽/ 16极。然而,六相绕组,即双三相(D3P),对称六相(S6P)和不对称六相(A6P),并不适用于所有槽/极组合。例如,六相18槽/ 16极机只能配置D3P绕组配置。此外,从径向力的角度来看,有文献证明在电动汽车充电过程中,A6P优于D3P。因此,本文全面比较了两种采用表面贴装永磁(SPM)电机的六相集成电池充电器,分别采用D3P和伪六相(P6P)绕组布置。首先基于磁等效电路(MEC)模型设计机床,并基于多目标遗传算法(MOGA)进行优化。最后,对两种工作模式下的两种绕组布局进行了有限元仿真。P6P绕组布局在推进模式下优于D3P,可提供6%的扭矩密度增强;在充电模式下,可提供更低的径向力。
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引用次数: 0
Compensated Sequential Model Predictive Control for Permanent Magnet Synchronous Machine 永磁同步电机补偿序贯模型预测控制
Pub Date : 2023-02-19 DOI: 10.1109/CPERE56564.2023.10119539
Guillermo Huerta, Margarita Norambuena, José Raúl Rodríguez Rodríguez
This paper proposes a new method for controlling permanent magnet synchronous machines with and without field weakening. It is proposed to use the Sequential Model Predictive Control technique with high-frequency injection and reference generation from the analytical solution of the Maximum Torque Per Ampere (MTPA) curve. The results show a better torque ripple and current total harmonic distortion concerning the Field Oriented Control technique in nominal conditions.
本文提出了一种新的永磁同步电机磁场弱化控制方法。提出了基于高频注入的序列模型预测控制技术,并根据最大转矩每安培(MTPA)曲线的解析解生成参考值。结果表明,在额定条件下,磁场定向控制技术具有较好的转矩脉动和电流总谐波畸变。
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引用次数: 0
期刊
2023 IEEE Conference on Power Electronics and Renewable Energy (CPERE)
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