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2014 IEEE International Energy Conference (ENERGYCON)最新文献

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A single phase seven-level grid-connected inverter based on three reference SPWM strategy 基于三参考SPWM策略的单相七电平并网逆变器
Pub Date : 2014-05-13 DOI: 10.1109/ENERGYCON.2014.6850432
Bo Sun, Fengjiang Wu, T. Dragičević, J. Guerrero, J. Vasquez
This paper introduce a seven level grid connected system based on the TRSPWM strategy and a Quasi PR current controller has a good output performance with a fast response and compensation for the low order harmonics in grid. With the multilevel output voltage and a high tracking current strategy with a low-order harmonic compensator, the grid connected system could operate properly in a polluted grid with low order harmonic. The simulation based on MATLAB verify the proposed the accuracy and feasibility of the proposed scheme.
本文介绍了一种基于TRSPWM策略和准PR电流控制器的七电平并网系统,该系统具有快速响应和补偿电网低次谐波的良好输出性能。采用多电平输出电压和低次谐波补偿器的高跟踪电流策略,使并网系统能够在低次谐波污染的电网中正常运行。基于MATLAB的仿真验证了所提方案的准确性和可行性。
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引用次数: 4
Electric vehicle number assessment for year 2020 in Croatia 克罗地亚2020年电动汽车数量评估
Pub Date : 2014-05-13 DOI: 10.1109/ENERGYCON.2014.6850626
M. Vrazic, D. Vuljaj, Arsen Pavasović, H. Paukovic
For the purpose of researching charging station distribution for electric vehicles it was necessary to estimate the number of electric vehicles, especially cars in Croatia until the year 2020. Electric vehicles are definitely the future of transportation. First these will be cars since they are the most common means of transport. But besides the vehicles, attention should be paid to the best possible preparation in the field of infrastructure. It means that charging stations as well as a different system in vehicles should be standardized. Finally, all that should be built. Of course, different systems and components will be developed at the same time, so it is very hard to predict the future right now. All the above-mentioned greatly depends on the number of electric vehicles predicted for the next 10 years. Of course, the number of electric vehicles that will be sold does not depend only on the offer on the market but also on buyers' purchasing power. Due to everything mentioned so far, it is very hard to predict the number of vehicles sold in the future. On the other hand, such estimations are necessary and they represent the basis for further development of several systems especially infrastructure that needs most time and money for development. This paper will present an estimation of electric vehicle sale in Croatia as well as all the conditions and assumptions used for that estimation.
为了研究电动汽车充电站的分布,有必要估计到2020年克罗地亚的电动汽车,特别是汽车的数量。电动汽车绝对是未来的交通工具。首先是汽车,因为它们是最常见的交通工具。但除了车辆之外,还应注意在基础设施领域尽可能做好准备。这意味着充电站以及车内不同的系统应该标准化。最后,所有这些都应该建成。当然,不同的系统和组件将同时开发,所以现在很难预测未来。所有这些都很大程度上取决于对未来10年电动汽车数量的预测。当然,电动汽车的销售数量不仅取决于市场上的报价,还取决于买家的购买力。由于以上所述,很难预测未来的汽车销量。另一方面,这样的评估是必要的,它们代表了几个系统的进一步开发的基础,特别是需要大部分时间和金钱进行开发的基础设施。本文将提出一个估计的电动汽车销售在克罗地亚以及所有的条件和假设用于估计。
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引用次数: 1
Statistical analysis of particles of conductor clashing 导体碰撞粒子的统计分析
Pub Date : 2014-05-13 DOI: 10.1109/ENERGYCON.2014.6850494
I. Ramljak, M. Majstrović, E. Sutlovic
Fire ignition as a consequence of conductor clashing has happened in many countries all over the world. These fires can cause severe environmental (forest fires) and financial damage, and even be potential life-threatening. The goal of the article is to describe the processes which occur when two live conductor clash together. The most dangerous product of conductor clashing are particles (sparks), which fall to the ground, while being hot enough to potentially start a fire. Primary, by defining of those sparks we can do the first step which would lead to the answer: “Is conductor clashing the cause of fires?” Conductor clashing was simulated in two environmental conditions. The first one was in a live low voltage electricity distribution network as line-to-line short circuit and the second one was in laboratory conditions. Al/Fe conductors of the same characteristics were used in both simulations. Simulations were recorded with high speed camera. Statistical analysis of particles and their probability density function (PDF) are presented in this paper. PDF calculation may be a part of additional criteria on power system protection adjustment.
由于导体碰撞引起的火灾在世界上许多国家都有发生。这些火灾会造成严重的环境(森林火灾)和经济损失,甚至可能危及生命。本文的目的是描述当两个带电导体碰撞在一起时发生的过程。导体碰撞的最危险的产物是粒子(火花),它们落在地上,同时足够热,有可能引起火灾。首先,通过定义这些火花,我们可以迈出第一步,从而得出答案:“导体碰撞是火灾的原因吗?”模拟了两种环境条件下的导体碰撞。第一个是在低压配电网络中作为线路对线路短路,第二个是在实验室条件下。两种模拟均采用相同特性的Al/Fe导体。模拟用高速摄像机记录。本文给出了粒子的统计分析及其概率密度函数(PDF)。PDF计算可以作为电力系统保护调整附加标准的一部分。
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引用次数: 19
Planning an itinerary for an electric vehicle 规划电动汽车的行程
Pub Date : 2014-05-13 DOI: 10.1109/ENERGYCON.2014.6850603
H. Chale-Gongora, Olivier de Weck, Abdelkrim Doufene, T. Ishimatsu, D. Krob
The steady increase in oil prices and awareness regarding environmental risks due to carbon dioxide emissions are promoting the current interest in electric vehicles. However, the current relatively low driving range (autonomy) of these vehicles, especially compared with the autonomy of existing internal combustion vehicles, remains an obstacle to their development. In order to reassure a driver of an electric vehicle and allow him to reach his destinations beyond the battery capacity, we describe a system which generates an energy plan for the driver. We present in this paper the electric vehicle ecosystem and we focus on the contribution of using the generalized multi-commodity network flow (GMCNF) model as a vehicle routing model that considers energy consumption and charging time in order to ensure the usage of an electric vehicle beyond its embedded autonomy by selecting the best routes to reach the destination with minimal time and/or cost. We also present some perspectives related to the utilization of autonomous electric vehicles and wireless charging systems. We conclude with some open research questions.
油价的持续上涨和对二氧化碳排放带来的环境风险的认识正在推动人们对电动汽车的兴趣。然而,目前这些汽车的行驶里程(自主性)相对较低,特别是与现有内燃机汽车的自主性相比,仍然是阻碍其发展的障碍。为了让电动汽车的司机放心,并允许他在超出电池容量的情况下到达目的地,我们描述了一个为司机生成能量计划的系统。我们在本文中介绍了电动汽车生态系统,并将重点放在使用广义多商品网络流(GMCNF)模型作为车辆路由模型的贡献上,该模型考虑了能源消耗和充电时间,以便通过选择以最小时间和/或成本到达目的地的最佳路线来确保电动汽车的使用超出其嵌入式自主性。我们还提出了一些与自动驾驶电动汽车和无线充电系统的应用相关的观点。最后,我们提出一些开放性的研究问题。
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引用次数: 16
Hybrid forecasting model of power demand based on three-stage synthesis and stochastically self-adapting mechanism 基于三阶段综合和随机自适应机制的电力需求混合预测模型
Pub Date : 2014-05-13 DOI: 10.1109/ENERGYCON.2014.6850468
Shuping Dang, Jiahong Ju, L. Baker, A. Gholamzadeh, Yizhi Li
The power demand over the electrical power system and smart grid is a random function in the time domain which is affected by a larger number of stochastic factors, for example weather, date and economy as well as a series of unpredictable human factors. Therefore, the most convenient and efficient methodology to forecast the power demand is a stochastic model based on statistics and fuzzy mathematics, because it can merge all complex factors which are difficult or even impossible to be modelled mathematically into an appropriate correction variable. In this paper, we will introduce a hybrid forecasting model of power demand which separates the forecasting process into three stages, i.e. long-term, middle-term and short-term analysis. Most of the long-term factors will be combined in a comprehensive correction factor for the middle-term stage. In the middle-term stage the forecasting mechanism integrates several different forecasting principles and methods to produce a combined forecasting result and dynamically adjusts its forecasting scheme by different weights for different forecasting methods by measuring and comparing the forecasting result and its corresponding practical measurement. By this self-adapting algorithm, the forecasting model is able to forecast the next 24-hour power demand via using the historical data obtained in its database. In the short-term stage, a fine adjustment mechanism will be involved to enhance the reliability and robustness of the holistic forecasting mechanism.
电力系统和智能电网的电力需求是时域上的随机函数,受天气、日期、经济等大量随机因素以及一系列不可预测的人为因素的影响。因此,基于统计和模糊数学的随机模型是最方便、最有效的电力需求预测方法,因为它可以将所有难以甚至无法数学建模的复杂因素合并到一个合适的修正变量中。本文将引入一种电力需求混合预测模型,该模型将电力需求预测过程分为长期、中期和短期三个阶段。大多数长期因素将结合在一个中期阶段的综合修正因素中。在中期阶段,预测机制将几种不同的预测原理和方法整合在一起,形成组合预测结果,并通过对预测结果和相应的实际测量进行测量和比较,根据不同预测方法的不同权重动态调整其预测方案。通过这种自适应算法,该预测模型能够利用其数据库中获得的历史数据预测未来24小时的电力需求。在短期阶段,将引入精细调整机制,提高整体预测机制的可靠性和稳健性。
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引用次数: 12
Estimation of advanced DC/DC Luo-converters based on Energy factor and sub-sequential parameters 基于能量因子和子序列参数的新型DC/DC变换器估计
Pub Date : 2014-05-13 DOI: 10.1109/ENERGYCON.2014.6850430
A. Hammoda, Mohammed Buamud, M. Nasr, M. Tamasas
The aim of this paper is to estimate and evaluate the dc/dc converters based on Energy factor and sub-sequential parameters to obtain mathematical model of power DC/DC converters (second order transfer function for any number of capacitors and inductors). The Elementary of positive output voltage-lift DC/DC Luo-converter and two stages positive output cascade boost converter super-lift DC/DC Luo-converter are chosen as the main focus case study of this paper. A computer simulation using NI SIMULINK results have been presented to verify the presented theoretical analysis.
本文的目的是基于能量因子和子序列参数对dc/dc变换器进行估计和评价,得到功率dc/dc变换器的数学模型(任意数目的电容器和电感的二阶传递函数)。本文选取正输出升压型DC/DC变换器的基本原理和两级正输出级联升压变换器的超升压型DC/DC变换器作为主要的重点案例研究。利用NI SIMULINK进行了计算机仿真,验证了理论分析的正确性。
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引用次数: 4
Small-signal stability monitoring using PMU 采用PMU进行小信号稳定性监测
Pub Date : 2014-05-13 DOI: 10.1109/ENERGYCON.2014.6850439
P. Chusovitin, A. Pazderin
The paper presents results of the research devoted to PMU-based power system small-signal stability monitoring. Proposed method allows tracking in-phase groups of generators and critical generators in the groups by analyzing low-frequency oscillations. Further developed, method is able to identify proximity to power system stability boundary. The technique developed is based on power system equivalent model identification. Identification procedure exploits PMU data. In the paper, applicability of the technique is demonstrated using 9-node power system model.
本文介绍了基于单片机的电力系统小信号稳定监测的研究成果。该方法通过分析低频振荡,实现对同相发电机组和关键发电机组的跟踪。进一步发展,该方法能够识别接近电力系统稳定边界。该技术是基于电力系统等效模型辨识的。识别程序利用PMU数据。本文以9节点电力系统模型为例,验证了该技术的适用性。
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引用次数: 3
Autonomous Demand-Side Management system based on Monte Carlo Tree Search 基于蒙特卡罗树搜索的自主需求侧管理系统
Pub Date : 2014-05-13 DOI: 10.1109/ENERGYCON.2014.6850585
Edgar Galván-López, C. Harris, L. Trujillo, K. Rodríguez-Vázquez, S. Clarke, V. Cahill
Smart Grid (SG) technologies are becoming increasingly dynamic, motivating the use of computational intelligence to support the SG by predicting and intelligently responding to certain requests (e.g, reducing electricity costs given fluctuating prices). The presented work intends to do precisely this, to make intelligent decisions to switch on electric devices at times when the electricity price (prices that change over time) is the lowest while at the same time attempting to balance energy usage by avoiding turning on multiple devices at the same time, whenever possible. To this end, we use Monte Carlo Tree Search (MCTS), a real-time decision algorithm. MCTS takes into consideration what might happen in the future by approximating what other entities/agents (electric devices) might do via Monte Carlo simulations. We propose two variants of this method: (a) maxn MCTS approach where the competition for resources (e.g, lowest electricity price) happens in one single decision tree and where all the devices are considered, and (b) two-agent MCTS approach, where the competition for resources is distributed among various decision trees. To validate our results, we used two scenarios, a rather simple one where there are no constraints associated to the problem, and another more complex, and realistic scenario with equality and inequality constraints associated to the problem. The results achieved by this real-time decision tree algorithm are very promising, specially those achieved by the maxn MCTS approach.
智能电网(SG)技术正变得越来越动态,通过预测和智能响应某些请求(例如,在价格波动的情况下降低电力成本),促使使用计算智能来支持智能电网。所提出的工作正是要做到这一点,在电价(随时间变化的价格)最低的时候做出明智的决定,打开电子设备,同时尽可能避免同时打开多个设备,以平衡能源使用。为此,我们使用蒙特卡罗树搜索(MCTS),一种实时决策算法。MCTS通过蒙特卡罗模拟来近似其他实体/代理(电子设备)可能做的事情,从而考虑到未来可能发生的事情。我们提出了该方法的两种变体:(a) maxn MCTS方法,其中资源竞争(例如,最低电价)发生在单个决策树中,并且考虑了所有设备;(b)双智能体MCTS方法,其中资源竞争分布在各个决策树中。为了验证我们的结果,我们使用了两个场景,一个非常简单,没有与问题相关的约束,另一个更复杂,更现实的场景,具有与问题相关的相等和不等式约束。这种实时决策树算法取得了很好的结果,特别是maxn MCTS方法取得的结果。
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引用次数: 20
Congestion-induced wind curtailment mitigation using energy storage 利用储能缓解拥堵引起的弃风
Pub Date : 2014-05-13 DOI: 10.1109/ENERGYCON.2014.6850483
M. Moradzadeh, B. Zwaenepoel, J. Van de Vyver, L. Vandevelde
Allowing the connection of additional renewable energy sources (RES) in areas with limited transmission capacity is becoming of a serious concern. Building new transmission lines only provides a long-term solution to cope with this issue due to the fact that it takes much longer time (up to 5-10 years) compared to time needed to build new wind farms (about 1 year). Storage is proven to be an effective solution to make maximal use of existing grid infrastructures in the short-term. This paper proposes a cost-benefit optimization formulation for optimally sizing the storage in a wind-storage system which is connected to an external spot market via limited transmission lines. A small test system is studied in order to find the optimal size of storage to avoid congestion by allowing revenue to be generated only via reducing the congestion-induced wind curtailment. Additional revenue streams can be also included to maximize the monetary value of the wind-storage system.
允许在输电能力有限的地区连接额外的可再生能源(RES)正成为一个严重的问题。建设新的输电线路只能提供应对这一问题的长期解决方案,因为与建设新的风电场所需的时间(大约1年)相比,它需要更长的时间(长达5-10年)。存储被证明是在短期内最大限度地利用现有电网基础设施的有效解决方案。针对通过有限输电线路与外部现货市场相连接的风力发电系统,提出了一种成本效益优化公式。研究了一个小型测试系统,以便通过减少由拥塞引起的弃风来产生收益,从而找到存储的最佳大小,以避免拥塞。还可以包括额外的收入流,以最大限度地提高风力储存系统的货币价值。
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引用次数: 10
A centralised DC power supply solution for LED lighting networks 用于LED照明网络的集中式直流电源解决方案
Pub Date : 2014-05-13 DOI: 10.1109/ENERGYCON.2014.6850566
M. Celidonio, E. Fionda, L. Pulcini, E. Sergio, D. Di Zenobio
In the context of the FP7 CIP-ICT Programme, the EDISON project1 has the ambitious goal to introduce a new way of thinking lighting networks in buildings, for both retrofitting actions and new constructions. It proposes an innovative ICT-based solution for lighting infrastructure that aims to improve power efficiency, reduce CO2 emissions and encourage the use of small-scale renewable energy sources in public and private buildings. In particular, this paper focuses on a relevant aspect of the EDISON solution: the centralization of DC power supply in a LED lighting infrastructure. To this aim, a short analysis has been carried out in order to give evidence of the benefits arising from the application of this approach. Finally, preliminary results achieved in targeted Pilot actions, implemented in different European countries, have been reported.
在FP7 CIP-ICT计划的背景下,EDISON项目1有一个雄心勃勃的目标,即为改造行动和新建筑引入一种新的思考建筑照明网络的方式。它提出了一种基于信息通信技术的照明基础设施创新解决方案,旨在提高电力效率,减少二氧化碳排放,并鼓励在公共和私人建筑中使用小规模可再生能源。本文特别关注爱迪生解决方案的一个相关方面:在LED照明基础设施中集中直流电源。为此目的,进行了一项简短的分析,以证明采用这种方法所产生的好处。最后,报告了在不同欧洲国家实施的有针对性的试点行动取得的初步结果。
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引用次数: 11
期刊
2014 IEEE International Energy Conference (ENERGYCON)
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