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2018 IEEE PES Transmission & Distribution Conference and Exhibition - Latin America (T&D-LA)最新文献

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Battery Energy Storage for Frequency Support in the BCS Electric Power System BCS电力系统中频率支持的电池储能
M. Ramirez, R. Castellanos, J. Calderón, O. Malik
A study on the application of a Battery Energy Storage System (BESS) for frequency support in the isolated power system of Baja California Sur (BCS) in Mexico is presented in this paper. For this purpose, user defined models of inertial and primary frequency control (IPFC) functions are incorporated into the converter active power control loop of BESS model. Time domain simulations for a set of test cases are carried out to evaluate the effectiveness of the BESS based IPFC for system frequency support in under-frequency and overfrequency conditions. Simulation results show that BESS equipped with IPFC can effectively improve the point at which frequency is arrested for the operating scenarios considered in the BCS electrical network.
本文研究了电池储能系统(BESS)在墨西哥下加利福尼亚南部(BCS)隔离电力系统中的频率支持应用。为此,将惯性和一次频率控制(IPFC)功能的用户自定义模型纳入BESS模型的变换器有功功率控制回路。对一组测试用例进行了时域仿真,以评估基于BESS的IPFC在低频和高频条件下对系统频率支持的有效性。仿真结果表明,对于BCS电网中考虑的运行场景,配备IPFC的BESS可以有效地改善频率截止点。
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引用次数: 5
Network reconfiguration in distribution systems to reduce harmonic distortion using Particle Swarm Optimization 基于粒子群算法的配电系统谐波重构
Laerty J. S. Damião, W. Zvietcovich, Francisco Baracho
A novel application of the meta-heuristic “Particle Swarm Optimization” is implemented in this work to solve the problem of reconfiguration of power distribution systems in the presence of non-linear loads with the objective of minimizing the total harmonic distortion. The proposed methodology is based on the behavior of a flock of birds when flying in search of food. In order to guarantee the convergence when the distribution power network is radial and large, a heuristic rule is deployed to improve the methodology efficiency. The developed algorithm was applied to the IEEE 33-bus radial system. The results demonstrate the efficiency of the proposed method to find the optimal topology of the distribution system to reduce harmonic distortion.
本文提出了一种新的启发式“粒子群优化”方法,用于解决存在非线性负荷的配电系统重构问题,其目标是使总谐波失真最小。所提出的方法是基于一群鸟在飞行中寻找食物时的行为。为了保证配电网径向大时的收敛性,采用了启发式规则,提高了算法的效率。该算法已应用于IEEE 33总线径向系统。结果表明,该方法能够有效地找到配电系统的最优拓扑结构,从而降低谐波失真。
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引用次数: 2
A New Algorithm for Implementing Automation Process Based on Self Healing Technique 一种基于自修复技术实现自动化过程的新算法
Jonatha Revoredo L. da Fonseca, Arrhenius Vinícius da Costa Oliveira, Marcos Antônio Dias de Almeida, José Luiz da Silva Jùnior, M. F. M. Júnior
This paper presents the application of Self Healing feature in automatic reconfiguration process of a power system inserted in a real industrial plant. Supporting the automation process, a new optimization algorithm, Power Summation Reconfiguration Algorithm (PSRA), is proposed whose objective function is minimizing the amount of switching during automatic reconfiguration process. Results obtained by using optimization algorithm developed in this paper were compared to ones from Chu-Beasley Modified Genetic Algorithm (CBMGA). The comparison was made between PSRA and CBMGA using Scilab simulation environment. The algorithm developed in this paper, PSRA, requires a simpler heuristic for implementation compared to CBMGA, besides presenting the same efficiency level. Then the electrical network was modeled in the Real Time Digital Simulator (RTDS) using the PSRA to implement the Self Healing technique. Intelligent Electronic Devices (IEDs) were used to protect and control the system. Two different network communications were used between RTDS and IEDs, one with digital signal and another with GOOSE messages based on the IEC 61850 standard. The time data obtained by the two network communication are compared to show the effectiveness of the PSRA.
本文介绍了自愈特性在实际工业装置电力系统自动重构过程中的应用。为了支持自动化过程,提出了一种新的优化算法——功率求和重构算法(PSRA),其目标函数是自动重构过程中的切换量最小化。将本文提出的优化算法与Chu-Beasley改进遗传算法(CBMGA)的结果进行了比较。利用Scilab仿真环境对PSRA和CBMGA进行了比较。与CBMGA相比,本文开发的算法PSRA在提供相同的效率水平的同时,需要更简单的启发式实现。然后在实时数字模拟器(RTDS)中使用PSRA对电网络进行建模,实现自愈技术。智能电子设备(ied)用于保护和控制系统。在RTDS和ied之间使用两种不同的网络通信,一种使用数字信号,另一种使用基于IEC 61850标准的GOOSE消息。通过对两种网络通信的时间数据进行比较,验证了该方法的有效性。
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引用次数: 2
Supervision, monitoring and control of home appliances through power line communication 通过电力线通信对家用电器进行监督、监控和控制
A. Vega, F. Santamaria, E. Rivas
This paper shows the design and development of a module named: Supervision and Control of Charge “SCC“, which conforms a home energy management system prototype. This module has internal aspects such as the physical structure of the device, which has to do with monitoring, supervising and controlling loads. Likewise, the software of the proposal is shown, it is related to the capture of energy measurement basic parameters. It involves information and communication technologies in order to take energy measures in the appliances, with the objective of transmitting information to a central system through power line communication so it can be processed in three different ways: manual, semiautomatic and automatic, which work with decision algorithms. After developing operation tests, the average response time was 1s in manual mode and 2s in automatic and semiautomatic mode. Besides, with the semiautomatic mode operation during early morning hours, savings of approximately 240,12 kWh/year are achieved per user. The prototype was designed taking into account the use of standard communication protocols in the context of Internet of things.
本文介绍了一个符合家庭能源管理系统原型的充电监控模块的设计与开发。该模块有内部方面,如设备的物理结构,它涉及到监测,监督和控制负载。同时给出了该方案的软件设计,涉及到能量测量基本参数的捕获。它涉及信息和通信技术,以便在电器中采取能源措施,其目的是通过电力线通信将信息传输到中央系统,以便以三种不同的方式进行处理:手动,半自动和自动,这些方式与决策算法一起工作。经过开发运行测试,手动模式下的平均响应时间为15秒,自动和半自动模式下的平均响应时间为15秒。此外,在清晨的半自动模式下,每个用户每年可节省约240,12千瓦时。原型的设计考虑到了物联网背景下标准通信协议的使用。
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引用次数: 1
Simulation Study of a GPC Controller for a Hydroelectric Plant during Electric Faults 水电站电气故障时GPC控制器的仿真研究
Marcos Sacasqui, J. Luyo
This paper presents the simulation study where the classic speed controller of a hydraulic power unit has been replaced with an unrestricted generalized predictive controller. The model of the power plant includes an excitation system, subsystem (speed controller, servo motor and turbine), load 1, load 2, Three-phase Transformer, External Grid and Fault. The electric three-phase fault has 0.1 seconds of duration. The results are compared with the responses of a conventional proportional integrative and derivative controller. The library of simulation developed by MathWorks “Power-Turbine”(Simulink) and for Matlab is used, also this research includes the steps for modify the library and so adapt it for our purposes.
本文提出了用不受限制的广义预测控制器取代液压动力单元经典速度控制器的仿真研究。电厂的模型包括励磁系统、子系统(速度控制器、伺服电机和汽轮机)、负载1、负载2、三相变压器、外部电网和故障。电三相故障持续时间为0.1秒。结果与传统的比例积分微分控制器的响应进行了比较。使用了由MathWorks“Power-Turbine”(Simulink)和Matlab开发的仿真库,本研究还包括修改库的步骤,以便使其适应我们的目的。
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引用次数: 1
Establishment of the single price of natural gas for thermoelectric power plant, its influence on the marginal cost and in the electricity tariff 火电厂天然气单一价格的建立及其对边际成本和电价的影响
R. Lopez
In Peru, users of the electric service bear the burden of free declaration of natural gas price in thermoelectric generation. We will see the impact that real costs will have, making the free electric market unreal with distorted competitiveness. Situation that influences electricity rates and the incentive to promote competitiveness in the electricity sector. We will analyze the cases of the Panamericana and Rubí Photovoltaic Solar Power Plants, installed in Peru, in the Moqbegua region. We can see the impact on the Premium granted to these renewable energy plants that allowed their investment through the RER Subsidy (PRIMA). Data are adopted for the 2015–2016 tariff year in their respective bus bars.
在秘鲁,电力服务用户在热电发电中承担免费申报天然气价格的负担。我们将看到实际成本将产生的影响,使自由电力市场不真实,扭曲竞争。影响电费的情况和促进电力部门竞争力的激励措施。我们将分析在秘鲁Moqbegua地区安装的Panamericana和Rubí光伏太阳能发电厂的案例。我们可以看到,通过RER补贴(PRIMA),这些可再生能源工厂获得的溢价受到了影响。数据采用2015-2016年各自母线的关税年度数据。
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引用次数: 0
Harmonic Analysis of the Thyristor Regulator Output Voltage 晶闸管稳压器输出电压的谐波分析
E. Sosnina, A. Kralin, R. Bedretdinov, E. Kryukov
The problem of improving the quality of electricity in medium voltage (MV) distribution electric networks (DEN) can be solved with the help of intelligent semiconductor booster devices. A variant of such a device is the thyristor regulator of booster voltage (TRBV), developed by the NNSTU. The operation of semiconductor devices causes a non-sinusoidal voltage of the network. The article is devoted to the investigation of the TRBV output voltage harmonic composition. The developed Simulinkmodel of a MV DEN segment with TRBV allows conducting the research. The modes of the longitudinal, transverse and longitudinal-transverse voltage regulation are considered. The output voltage of the TRBV meets the requirements of the regulatory standards.
智能半导体升压装置可以解决提高中压配电网电能质量的问题。这种装置的一个变体是由NNSTU开发的晶闸管升压调节器(TRBV)。半导体器件的工作使网络产生非正弦电压。本文对TRBV输出电压的谐波组成进行了研究。开发的带有TRBV的中压DEN段的simulink模型允许进行研究。考虑了纵向电压调节、横向电压调节和纵向-横向电压调节的模式。TRBV的输出电压符合法规标准的要求。
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引用次数: 1
Effects of Arc Extinction Time Reduction during Three-Phase Reclosing 缩短三相重合闸灭弧时间的影响
P. Mestas, M. Tavares
Most of transmission line faults are line to ground and most of them are transitory in nature. In this sense, high speed auto reclosing improves the system stability, but there must be certainty that the arc has been extinguished. For shunt compensated transmission lines, frequently, an additional singlephase reactor is connected between neutral and ground. This reactor contributes to coupling reduction and is important to reduce secondary arc current amplitude, which in turn will decrease the secondary arc extinction time during single pole reclosing This paper examines different aspects related to the neutral reactor optimization and its effects for arc extinction time reduction during three-phase reclosing. Additionally, the result of applying a switching method to reduce overvoltages during three-phase reclosing is presented.
输电线路故障多为线路接地故障,且多为暂时性故障。从这个意义上说,高速自动重合闸提高了系统的稳定性,但必须确定电弧已经熄灭。对于并联补偿输电线路,通常在中性点和地之间附加一个单相电抗器。该电抗器有助于减少耦合,对降低二次弧电流幅值至关重要,从而减少单极重合闸时的二次弧消弧时间。本文研究了中性电抗器优化的不同方面及其对三相重合闸时减少电弧消弧时间的影响。此外,还介绍了采用开关方法降低三相重合闸过电压的结果。
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引用次数: 2
Model Predictive Controller Applied to Optimize Energy and Water Resources in Strawberry Crops 模型预测控制器在草莓作物能源和水资源优化中的应用
Christian Vega Caicedo, John Barco Jiménez
This paper presents an automated irrigation system for strawberry crops, which the main goal is to keep soil moisture in a suitable range by making efficient use of energy and water resources. A Constrained Matricial Predictive Controller- CMPC was used because it allows projecting the behavior of moisture through a prediction horizon, estimating the perturbations and responding appropriately to them. To feed the model, evapotranspiration data from the climatological station of RAMPA research group were systematized for three years. The solution was evaluated on four scenarios with different evapotranspiration curves. The key advantage of the proposed controller is the possibility to get the minimum amount of energy and water resources necessary to achieve the control objective using an optimization scheme. The results show that the proposed controller obtains a better performance with respect to reference PID controller, widely used in this kind of applications.
本文介绍了一种草莓作物自动化灌溉系统,其主要目的是通过有效利用能源和水资源,使土壤水分保持在适当的范围内。使用约束材料预测控制器- CMPC,因为它允许通过预测范围来预测湿度的行为,估计扰动并对它们做出适当的响应。为了给模型提供数据,对RAMPA研究组3年的气候站蒸散发数据进行了系统整理。在不同蒸散曲线的4种情景下对该方案进行了评价。所提出的控制器的主要优点是可以使用优化方案获得实现控制目标所需的最小能量和水资源。结果表明,所提出的控制器比参考PID控制器具有更好的性能,在此类应用中得到了广泛的应用。
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引用次数: 0
Regulatory analysis and economic challenges to enable new energy storage systems in power systems 监管分析和经济挑战,使新的能源存储系统在电力系统
E. Daza, M. Sperandio
This paper presents a methodology for analyzing the feasibility of the insertion of energy storage systems in electric distribution networks due to different regulatory policies. Various topologies are used as input data, and as output, we have the maximum possible cost that the energy storage system may have to be considered viable by the potential investor. With the input data is possible any combination of these 8 regulatory policies, generating 255 scenarios for evaluation. For each scenario, the possible revenue was estimated, with each one scenario generating 441 sub-scenarios resulting from the test of several levels of WACC and taxes. Thus, in all, there are 112,455 possible regulatory configurations for evaluation. Based on the calculation of cash flow in each sub-scenario, the work determined the maximum possible cost in each of these. The proposed method allows the validation of which energy storage technologies are feasible or not, and which technological development they need to achieve considering the regulatory framework in which they are inserted. Through simulations with standard distribution networks using worldwide economical reference values, it is possible to determine which changes regulatory agents must make to enable the rise of storage systems in power distribution networks.
本文提出了一种方法来分析由于不同的监管政策,储能系统在配电网中插入的可行性。各种拓扑被用作输入数据,作为输出,我们有最大可能的成本,储能系统可能必须被潜在投资者认为是可行的。有了输入数据,这8个监管策略的任何组合都是可能的,从而生成255个场景用于评估。对于每个情景,估计了可能的收入,每个情景产生441个子情景,这些子情景是通过测试几个级别的WACC和税收产生的。因此,总共有112,455种可能的监管配置用于评估。在计算每个子场景的现金流量的基础上,该工作确定了每个子场景的最大可能成本。所提出的方法允许验证哪些储能技术可行或不可行,以及考虑到它们所处的监管框架,它们需要实现哪些技术发展。通过使用全球经济参考值的标准配电网的模拟,可以确定监管机构必须做出哪些改变,以使配电网中的存储系统得以兴起。
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引用次数: 0
期刊
2018 IEEE PES Transmission & Distribution Conference and Exhibition - Latin America (T&D-LA)
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