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2017 IEEE Workshop on Power Electronics and Power Quality Applications (PEPQA)最新文献

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Optimization of two operation strategies for batteries in the low voltage grid 低压电网中蓄电池两种运行策略的优化
Pub Date : 2017-05-01 DOI: 10.1109/PEPQA.2017.7981673
Arturo José Montealegre Pallares, A. Pavas
Due to the high amount of installed solar power systems in Germany, the low-voltage distribution grids reach their maximum capacities in periods of high solar radiation. In order to ensure a proper integration of solar power systems into the grid, grid reinforcement is a common method to increase the transmission capacity. As an alternative to this costly solution, local battery storage systems can be used to store the surplus generation and limit the feed-in power of the solar power systems into the grid. In paper “Operational Strategies for Battery Storage Systems in Low-voltage Distribution Grids to Limit the Feed-in Power of Roof-mounted Solar Power Systems” are proposed two different operational strategies for battery storage systems, the first strategy or Feed-in chopping and the second strategy or Feed-in damping. After publishing this work, is the implementation of the strategies necessary and perform one operational comparison of the strategies, this our work, first, the optimization of the strategies in order to use the maximum battery capacity and consequentially reduce the feed-in power to the low-voltage grid and second, the implementation of this optimized strategies into the laboratory and determine which of the two operational strategies is the best and in which cases is recommendable the utilization of the first or second strategy.
由于德国安装了大量的太阳能发电系统,低压配电网在太阳辐射高的时期达到最大容量。为了确保太阳能发电系统合理并网,电网加固是增加输电容量的常用方法。作为这种昂贵的解决方案的替代方案,本地电池存储系统可以用来存储多余的发电,并限制太阳能发电系统进入电网的馈电。本文在“限制屋顶太阳能发电系统馈电功率的低压配电网电池储能系统运行策略”的基础上,提出了两种不同的电池储能系统运行策略,即第一种策略或馈电切断策略和第二种策略或馈电阻尼策略。本工作发表后,是实施策略所必需的,并对策略进行了一次运行比较,本工作首先对策略进行了优化,以便最大限度地利用电池容量,从而减少对低压电网的馈电功率;在实验室中实施这种优化策略,并确定两种操作策略中哪一种是最好的,在哪些情况下推荐使用第一种或第二种策略。
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引用次数: 0
Waveform characteristics assessment by the operation of protective devices 保护装置操作的波形特性评估
Pub Date : 2017-05-01 DOI: 10.1109/PEPQA.2017.7981651
S. Arias-Guzman, A. Ustariz-Farfán, E. Cano-Plata
Power system protection coordination plays the main role in the continuity of service in electrical systems. Incorrect settings may allow that repetitive failures occur before triggering an interruption. Consequently, it is necessary to identify the devices that clear a fault to assess its operation. The identification process can be achieved by a signature that each device induces in the voltage and current waveforms. As a proposal, this article presents a new method in the analysis of the transients related to the operation of the protections in the distribution systems for identification of protective devices. This method has the ability to detect transient changes and characterize the quality disturbances of three-phase systems.
电力系统保护协调对电力系统的服务连续性起着重要的作用。不正确的设置可能导致在触发中断之前出现重复故障。因此,有必要识别清除故障的设备,以评估故障的运行情况。识别过程可以通过每个器件在电压和电流波形中诱导的信号来实现。作为建议,本文提出了一种新的分析配电系统中与保护动作有关的暂态的方法,用于保护装置的识别。该方法具有检测瞬态变化和表征三相系统质量扰动的能力。
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引用次数: 3
Function test by HIL for DC-DC converters type: Buck, boost and buck-boost 用HIL测试DC-DC变换器的功能:降压、升压和降压-升压
Pub Date : 2017-05-01 DOI: 10.1109/PEPQA.2017.7981647
G. Ramos, Miguel E. Hernandez, Manuel D. Trujillo
The main aim of this document is to verify the operation of the closed loop control for power converters through by HIL technical whose topologies are the buck, boost, and the buck-boost. This includes different signals properties, for example, input to the switching device (PWM), the response voltage and the current of the inductor. To develop objectives as mentioned, three main stages are raised: Design, simulation and MatLab-Simulink simulation RT-LAB (Software associate OPAL-RT). In the design stage, can include the selection of power converter about topology and the characteristics of closed loop control are obtained, it includes transfer functions (continuous and discontinuous conduction mode) and the controller used properties. On the other hand, this manuscript presents the advantages of real-time simulations are illustrated by three case studies of different converters. At the end, this manuscript shows that the models of converters are proposed in the methodology section is consistent with the values in terms of current and voltage is concerned. It also shows the ease and saving costs by not using the risk of a physical system simulation.
本文的主要目的是验证通过HIL技术实现的电源变换器闭环控制的操作,其拓扑结构为降压、升压和降压-升压。这包括不同的信号属性,例如,输入到开关设备(PWM),响应电压和电感的电流。为了实现上述目标,提出了三个主要阶段:设计,仿真和MatLab-Simulink仿真RT-LAB(软件关联OPAL-RT)。在设计阶段,可以包括对电源变换器的拓扑结构的选择和闭环控制的特性的获得,它包括传递函数(连续和不连续传导模式)和控制器所使用的特性。另一方面,本文通过三个不同变换器的实例分析说明了实时仿真的优点。最后,本文表明,在方法部分中提出的变换器模型与电流和电压有关的数值是一致的。它还显示了不使用物理系统模拟的风险所带来的便利性和节省的成本。
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引用次数: 1
Li-Ion battery management system based in fuzzy logic for improving electric vehicle autonomy 基于模糊逻辑的电动汽车锂离子电池管理系统
Pub Date : 2017-05-01 DOI: 10.1109/PEPQA.2017.7981677
D. A. Martínez, J. Poveda, D. Montenegro
This work presents the development of a Battery Management System (BMS) focused on lithium batteries for Electric Vehicles (EV). This BMS was developed using fuzzy logic to model the methodologies for improving the autonomy and performance of the EV. For modeling the EV, the powertrain and driving cycles were used, thus reproducing the normal operation conditions for a real EV. With this model, to evaluate the Battery State Of Charge (SOC) against the time under different conditions was possible, revealing the adequate strategy for improving its performance. Then, this strategy was implemented using fuzzy logic within the proposed BMS focused in the energy autonomy optimization and the energy performance. This BMS was applied to the EV model and the results reveal that there is a significant improvement of the SOC behavior under normal driving cycles. The BMS was implemented using NI LabVIEW® and the EV model and analysis was performed using DSSim-PC.
本文介绍了一个针对电动汽车锂电池的电池管理系统(BMS)的开发。该BMS采用模糊逻辑对改进电动汽车自主性和性能的方法进行建模。对电动汽车进行建模时,采用了动力总成和行驶工况,再现了真实电动汽车的正常工况。利用该模型,可以对不同条件下的电池荷电状态(SOC)随时间的变化进行评估,从而揭示出改善其性能的适当策略。然后,利用模糊逻辑在所提出的BMS中实现该策略,重点关注能源自治优化和能源绩效。将该BMS应用于电动汽车模型,结果表明,在正常驾驶循环下,SOC性能有显著改善。使用NI LabVIEW®实现BMS,使用DSSim-PC进行EV模型和分析。
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引用次数: 19
Shunt active power filter application to reduce the harmonics of current with photovoltaic generation grid-tied 并联有源电力滤波器的应用可降低光伏发电并网电流的谐波
Pub Date : 2017-05-01 DOI: 10.1109/PEPQA.2017.7981692
J. C. Colque, N. M. Hernández, A. S. Filho, J. Azcue
The shunt active power filter is studied when a photovoltaic generation system is connected to the common coupling point at the same time as a load (linear or nonlinear), because nowadays the use of nonlinear loads is increasing in the industry, commerce, and domestic appliances. This leads to increased the Total Harmonic Distortion in the electrical grid. The modeling of the photovoltaic system is developed, the controller for the APF is designed using instantaneous power theory. In all cases the effect of shunt APF is analyzed. The simulations were performed using the Matlab/Simulink. In the first and second case the THD does not vary much because they are linear loads, in the third case the THD of the current decreases from 117,12% to 18, 94% and in the fourth case the load causes the THD to rise to 420, 51 % and the action of the APF causes it to decrease to 33, 39 %.
由于目前工业、商业和家用电器中非线性负载的使用越来越多,因此研究了当光伏发电系统与线性或非线性负载同时连接到公共耦合点时的并联有源电力滤波器。这导致电网总谐波失真增大。建立了光伏系统的模型,利用瞬时功率理论设计了有源滤波器的控制器。在所有情况下,分析了并联有源滤波器的影响。采用Matlab/Simulink进行仿真。在第一种和第二种情况下,THD变化不大,因为它们是线性负载,在第三种情况下,电流的THD从117.12%下降到18.94%,在第四种情况下,负载使THD上升到420.51%,APF的作用使其下降到33.39%。
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引用次数: 2
Design and implementation of proportional-resonant controller for 3-phase current source inverter in Dspace DS1104 DS1104中三相电流源逆变器比例谐振控制器的设计与实现
Pub Date : 2017-05-01 DOI: 10.1109/PEPQA.2017.7981663
R. E. Alzate, J. Posada
In this paper is presented the design of PR controller for 3-phase current source inverter. The converter is implemented with IGBT transistors and is modelled as a CSI (Current Source Inverter). Current control loops based on resonant techniques and instantaneous power p-q theory are used to control the DC/AC converter. This control strategy achieves active and reactive power generation in a three-phase system. During the development of the present work a PEBB (Power Electronic Building Block) is built. The control strategy is implemented in a Dspace DS1104.
本文介绍了三相电流源逆变器的PR控制器设计。该变换器由IGBT晶体管实现,并被建模为CSI(电流源逆变器)。采用基于谐振技术和瞬时功率p-q理论的电流控制环来控制直流/交流变换器。该控制策略实现了三相系统的有功和无功发电。在本工作的开发过程中,建立了一个电力电子模块(PEBB)。该控制策略在Dspace DS1104中实现。
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引用次数: 5
OpenDSS and OpenDSS-PM open source libraries for NI LabVIEW OpenDSS和OpenDSS- pm的NI LabVIEW开源库
Pub Date : 2017-05-01 DOI: 10.1109/PEPQA.2017.7981639
D. Montenegro, R. Dugan
The EPRI Open Source Distribution System Simulator, OpenDSS, has been widely used to perform planning studies and research, particularly in the area of Distributed Energy Resources (DER). After being released in 2008 as open source software it has become widely used around the world. One of the features that makes OpenDSS popular is that the package offers interfaces for co-simulation. Initially, the program was released with a COM interface and, recently, the “Direct DLL” interface has been released so that users can access the program features on platforms incompatible with COM. With these interfaces, users can integrate their customized models into OpenDSS, control the simulation and to integrate OpenDSS into their own software. OpenDSS has continued to evolve and now offers a version to perform parallel computing in modern multi-core computers. This version is called OpenDSS-PM (Parallel Machine) and is available to the public as well. To keep expanding the integration capabilities of OpenDSS, this paper presents the graphical OpenDSS and OpenDSS-PM libraries for NI LabVIEW. These libraries are open source and can be installed in LabVIEW online using the VI package Manager.
EPRI的开源配电系统模拟器,OpenDSS,已经被广泛用于执行规划研究,特别是在分布式能源(DER)领域。在2008年作为开源软件发布之后,它在世界范围内得到了广泛的应用。使OpenDSS流行的特性之一是该包提供了用于联合仿真的接口。最初,该程序使用COM接口发布,最近发布了“直接DLL”接口,以便用户可以在与COM不兼容的平台上访问程序功能。通过这些接口,用户可以将自己定制的模型集成到OpenDSS中,控制仿真,并将OpenDSS集成到自己的软件中。OpenDSS不断发展,现在提供了一个在现代多核计算机中执行并行计算的版本。这个版本被称为OpenDSS-PM(并行机),也对公众开放。为了不断扩展OpenDSS的集成能力,本文提出了NI LabVIEW的图形化OpenDSS和OpenDSS- pm库。这些库都是开源的,可以使用VI包管理器在线安装在LabVIEW中。
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引用次数: 7
Implicit PV cell parameters estimation used in approximated closed-form model for inverter power control 隐式光伏电池参数估计用于逆变器功率控制的近似封闭模型
Pub Date : 2017-05-01 DOI: 10.1109/PEPQA.2017.7981666
J. Aller, J. Viola, F. Quizhpi, J. Restrepo, A. Ginart, Andres Salazar
This paper evaluates the use of a Photo Voltaic (PV) parameter estimation method based on implicit optimization algorithms and its use in power controller strategies by explicit model representation obtained with First and Second Order Approximation Models (FOAM, SOAM). An explicit function linking voltage, current and power of PV) cells is presented using the parameters obtained during the implicit estimation. The proposed method gives direct analytical solutions, resulting from a truncated Taylor series for the single diode PV-model. The analytical equations are easier to put into practical use and give solutions with an equivalent precision similar to the numerical method (Newton-Raphson Method) for the PV's cell voltage produced under particular conditions of temperature and solar radiance. The main benefit of this set of equations, useful also for optimal voltage estimation, is that offer an accurate and simple determination of the voltage profile using the manufacturer's data-sheet and PV plant's location for an specific design. The verification of the proposed method uses information from the manufacturer's datasheets of 12 different PV cells. The comparison of the results, for the analytical expressions versus the Newton-Raphson solution, validates the proposed method.
本文评估了基于隐式优化算法的光伏(PV)参数估计方法的使用,以及通过一阶和二阶近似模型(FOAM, SOAM)获得的显式模型表示来评估其在功率控制器策略中的使用。利用隐式估计过程中得到的参数,建立了连接光伏电池电压、电流和功率的显式函数。该方法给出了单二极管pv模型的截断泰勒级数的直接解析解。对于特定温度和太阳辐照度条件下的光伏电池电压,解析方程易于实际应用,求解精度与数值方法(牛顿-拉夫森法)相当。这组方程的主要好处是,它可以根据制造商的数据表和光伏电站的具体设计位置,准确而简单地确定电压分布图,也可用于最佳电压估计。所提出的方法的验证使用来自12种不同PV电池的制造商数据表的信息。将解析表达式与Newton-Raphson解的结果进行比较,验证了所提出的方法。
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引用次数: 4
Co-simulation strategy of PV hosting capacity applying a stochastic analysis 基于随机分析的光伏主机容量联合仿真策略
Pub Date : 2017-05-01 DOI: 10.1109/PEPQA.2017.7981659
Yessica Africano, David F. Celeita, G. Ramos
The aim of this study is to present the implementation of a co-simulation methodology to define the hosting capacity when integrating (photovoltaic panels) PVs into a distribution system. The paper introduces the benefits to using DSSim-PC and Matlab as powerful tools when having certain variables such as forecasting estimation, load profiles and impact of distributed generation. Then, a methodology validation is done with IEEE test feeders systems to understand how the algorithm works and assess the perform of distribution systems with PVs. The results show the feasibility of the proposed methodology to seize reach into larger systems. Voltage profile is one of the most important variables, and that is why analyzing systems based on this indicator could lead to an optimal integration of PVs in existing grids.
本研究的目的是提出一种联合模拟方法的实施,以定义将光伏板集成到配电系统中时的承载能力。本文介绍了DSSim-PC和Matlab作为强大的工具在具有预测估计、负荷概况和分布式发电影响等变量时的优势。然后,使用IEEE测试馈线系统进行方法验证,以了解算法如何工作并评估带有pv的配电系统的性能。结果表明,所提出的方法在更大的系统中是可行的。电压分布是最重要的变量之一,这就是为什么基于该指标分析系统可以导致现有电网中pv的最佳集成。
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引用次数: 5
A modular power electronics/control systems laboratory as educational tool for electrical engineering courses 作为电气工程课程教学工具的模块化电力电子/控制系统实验室
Pub Date : 2017-05-01 DOI: 10.1109/PEPQA.2017.7981684
J. Solano, Diego A. Jimenez, H. Díaz, J. Pérez, Alexander Sepulveda, Maria A. Mantilla
This paper introduces a programmable modular laboratory for undergraduate courses on power electronics and control engineering systems. The proposed system helps the students to get an integral vision about control of power electronics devices. The hardware and software are presented and then a case of study, the implementation of a fuzzy logic based voltage controller of a DC/DC converter, is introduced and results are commented. The prototype was conceived as a modular design. The proposed system is also able to contribute to practical activities related to feedback control and power electronics, and, it allows a better understanding of power converters operation.
本文介绍了电力电子与控制工程系统本科课程的可编程模块化实验室。该系统有助于学生对电力电子器件的控制有一个整体的认识。介绍了系统的硬件和软件设计,并介绍了基于模糊逻辑的DC/DC变换器电压控制器的实现实例,并对结果进行了评价。原型被设想为模块化设计。所提出的系统还能够为与反馈控制和电力电子相关的实际活动做出贡献,并且,它可以更好地理解电源转换器的操作。
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引用次数: 1
期刊
2017 IEEE Workshop on Power Electronics and Power Quality Applications (PEPQA)
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