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2022 IEEE 7th International Energy Conference (ENERGYCON)最新文献

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Determining optimisation Framework for Local Energy Communities 确定地方能源社区的优化框架
Pub Date : 2022-05-09 DOI: 10.1109/energycon53164.2022.9830444
I. Drovtar, T. Korõtko, A. Mutule, E. Kairisa, A. Rosin
Local energy communities (LEC) are cooperatives required to meet the ambitious targets of the European Green Deal. LECs are suitable to mitigate the challenges that increased integration of distributed generation puts on the grid and generation asset owners. The authors provide input to the general optimisation framework to develop LEC mathematical optimisation models to efficiently solve the multilateral economic dispatch decision on the low voltage distribution network. The input is beforehand validated with optimisation software to provide a priority list of which of the optimisation targets impact the performance of LEC most.
地方能源社区(LEC)是实现《欧洲绿色协议》雄心勃勃的目标所必需的合作社。LECs适合缓解分布式发电日益一体化给电网和发电资产所有者带来的挑战。在通用优化框架的基础上,建立了LEC数学优化模型,有效地解决了低压配电网多边经济调度决策问题。输入预先用优化软件进行验证,以提供哪个优化目标对LEC的性能影响最大的优先级列表。
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引用次数: 3
The impact of variable wind and demand levels on the flexible operation of interconnectors in Great Britain 多变的风力和需求水平对英国互联连接器灵活运行的影响
Pub Date : 2022-05-09 DOI: 10.1109/energycon53164.2022.9830472
Qingwen Pang, Antonio De Paola, G. Strbac, V. Trovato
This paper analyses the potential benefits for flexible operation of interconnectors in cross-border power systems. The underlying modelling approach enables the simultaneous cross-border exchange of power and inertia-dependent frequency response services through the interconnector. Two main operational paradigms are adopted. The first considers the interconnectors as centrally-operated assets; the latter envisages them as profit-seeking private entities. Furthermore, the proposed work adopts a sampling-based method to assess the impact of wind and demand variability on the short-term operation of the interconnectors, evaluating the sensitivities of relevant operational and economical metrics with respect to wind availability and demand levels. A comprehensive set of case studies is developed considering the Great Britain (GB)-France interconnected systems. The studies show significant value for interconnectors under a wide range of system conditions.
本文分析了跨界电力系统中互联器灵活运行的潜在效益。潜在的建模方法能够通过互连器同时跨境交换功率和惯性相关的频率响应服务。采用了两种主要的操作范式。第一种方法将互连器视为集中操作的资产;后者将它们设想为追求利润的私人实体。此外,建议的工作采用基于抽样的方法来评估风和需求变化对互联网络短期运行的影响,评估有关风可用性和需求水平的相关运营和经济指标的敏感性。考虑到英国(GB)-法国互联系统,开发了一套全面的案例研究。这些研究对广泛的系统条件下的互连器具有重要的价值。
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引用次数: 0
DC Nano grid Control in the Residential Energy Router with the Presence of Constant Power Loads 恒定负荷下住宅能源路由器直流纳米电网控制
Pub Date : 2022-05-09 DOI: 10.1109/energycon53164.2022.9830523
Mahdieh Najafzadeh, D. Vinnikov, O. Husev, I. Roasto
Increasing penetration of DC-based electronics loads has highlighted the idea of DC -grid which is more efficient. Furthermore, DC -grid provides the distributed generators utilization that mostly is DC -based. As a result, in this study, we propose the combination of DC nano grid to the traditional AC-nano grid to the distribution system of a house using a power-electronics-interface called an energy router. However, interactions of multiple DC - DC and AC - DC converters in the nano grid make challenges in the stability of the system and control of it. Constant power loads are one of the main challenges since they are highly nonlinear and they behave as negative resistor from the feeder-side point of view. Consequently, we propose a nonlinear control technique to control the DC nano grid with the presence of constant power load in a residential application.
基于直流的电子负载的日益普及凸显了直流电网更高效的理念。此外,直流电网还提供了以直流为基础的分布式发电机的利用。因此,在本研究中,我们建议将直流纳米电网与传统的交流纳米电网结合起来,并使用一种称为能量路由器的电力电子接口用于家庭配电系统。然而,纳米电网中多个DC - DC和AC - DC变换器的相互作用给系统的稳定性和控制带来了挑战。恒功率负载是主要的挑战之一,因为它们是高度非线性的,从馈线侧的角度来看,它们表现为负电阻。因此,我们提出了一种非线性控制技术来控制住宅应用中恒定功率负载下的直流纳米电网。
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引用次数: 0
Features of converting a car with an internal combustion engine into an electric car 将内燃机汽车改装成电动汽车的特点
Pub Date : 2022-05-09 DOI: 10.1109/energycon53164.2022.9830183
A. Patlins, A. Hnatov, S. Arhun, H. Hnatova, O. Saraiev
Conversion of traditional cars with internal combustion engines into electric vehicles (EV) is quite relevant for companies that deliver or transport mail, small-sized and lightweight cargo, food delivery from restaurants, for courier services, etc. EVs have significant advantages, namely, they do not require frequent maintenance, are much more reliable than traditional cars with internal combustion engines, more economical and environmentally friendly. Therefore, studies were carried out on the rationality of converting a car from an internal combustion engine to an EV with the calculation of the payback period of the converted car. Considered the main components of the EV configuration. The calculation of the power of the electric motor for the selected electric vehicle has been carried out. The calculation of the economic indicators of the conversion of the ZAZ Lanos-pickup car into EV has been carried out. The calculation results show that in the 3rd year of operation of the converted vehicle, a payback of the costs incurred will be obtained. The graphical dependence of the traction motor power on the EV speed is built. Calculations are carried out and the dependence of the traction motor power on the road slope when the EV is moving at a certain speed is built. Re-equipment of cars with internal combustion engines into EVs is expedient and cost-effective to implement for companies engaged in a variety of services for the delivery of goods within the city. But here one should take into account the fact that charging infrastructure should be developed within the city or night charging should be provided at the parking place.
将传统的内燃机汽车转换为电动汽车(EV)对于递送或运输邮件、小型和轻型货物、从餐馆送餐、快递服务等公司来说非常重要。电动汽车有显著的优点,即不需要经常维护,比传统的内燃机汽车可靠得多,更经济、更环保。因此,对汽车由内燃机转换为电动汽车的合理性进行了研究,并计算了转换汽车的投资回收期。考虑EV配置的主要组件。对所选电动汽车的电机功率进行了计算。对ZAZ lanos -皮卡轿车转换为电动汽车的经济指标进行了计算。计算结果表明,在改造后的车辆运行第3年,将获得成本的回报。建立了牵引电机功率与电动汽车转速的图形关系。通过计算,建立了电动汽车以一定速度行驶时,牵引电机功率与路面坡度的依赖关系。对于从事各种城市货物运输服务的公司来说,将内燃机汽车改装成电动汽车是一种方便且具有成本效益的做法。但是,这里应该考虑到充电基础设施应该在城市内发展,或者应该在停车场提供夜间充电。
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引用次数: 0
Towards to sustainability of education: the mutual cooperation with partners in Smart city project 迈向教育的可持续性:在智慧城市项目中与合作伙伴的相互合作
Pub Date : 2022-05-09 DOI: 10.1109/energycon53164.2022.9830212
M. Mitova, P. Tomov, N. Kunicina, A. Patlins, M. Mansurova, Oyun-Erdene Namsrai
The article presents the European evaluation within the scope of the project SMARTCITY:Innovative Approach Towards a Master Program on Smart Cities Technologies. The evaluation covers assessment of teachers from PC universities (SSTU, NSTU, NUM, MUST.KAZNU, ENU), who have been selected to participate in the project-related mobilities to increase knowledge in the field of SCT. In the project is planned developing of 18 teaching materials published with e-ISBN by PC teachers involved in the project.The article also covers quality assessment of teaching materials developed within the project by PC universities and assessment of students’ knowledge which is done at the beginning of their training in the EU Universities and during the Master theses defense.
本文介绍了欧洲在“智慧城市:迈向智慧城市技术硕士课程的创新方法”项目范围内的评估。本次评估涵盖了PC大学(SSTU, NSTU, NUM, MUST)的教师评估。KAZNU, ENU),他们被选中参加与项目相关的流动,以增加在SCT领域的知识。在这个项目中,计划由参与项目的PC教师开发18种以电子书号出版的教材。文章还涵盖了PC大学在项目中开发的教材的质量评估,以及在欧盟大学培训开始和硕士论文答辩期间对学生知识的评估。
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引用次数: 0
Proposition of a Portfolio optimization System to Manage a Commercial Virtual Power Plant in the Brazilian Free Energy Market 巴西自由能源市场中管理商业虚拟电厂的投资组合优化系统的提出
Pub Date : 2022-05-09 DOI: 10.1109/energycon53164.2022.9830431
C. Santos, Isla Almeida Oliveira, Pâmela Rugoni Belin, M. A. Ludwig, J. R. H. Rodrigues, M. A. I. Martins
In face of the possibility of freely trading energy in the Brazilian market, a model is proposed to define an optimal contracting strategy for a Commercial Virtual Power Planet (CVPP) for years ahead. The idea behind the CVPP is to aggregate loads in order to obtain contractual benefits, acquiring long-term contracts at lowest prices and taking advantage of the complementary nature of the load profiles when settling the differences between consumption and contracts. The model, called Portfolio optimization System (POS) – in Portuguese, “Sistema de Otimização de Portfólio” (SOP) –, is based on Mixed-integer Linear Programming (MILP) and aims to maximize profit, considering a certain level of risk, represented by the Conditional Value-at-Risk (CVaR). In this paper the motivation behind the model and its potential market value as a tool for portfolio management, especially for energy retailers, are presented. With the Brazilian Energy Market business rules defined, a case study is proposed in order to compare optimized long-term contracting and short-term contracting without any optimization. The profit resulting from the use of the tool is valued at 31% in this case study.
面对巴西市场能源自由交易的可能性,提出了一个模型来定义未来几年商业虚拟电力星球(CVPP)的最优承包策略。CVPP背后的理念是将负荷聚集在一起,以获得合同利益,以最低价格获得长期合同,并在解决消费和合同之间的差异时利用负荷概况的互补性。该模型被称为投资组合优化系统(POS),葡萄牙语为“Sistema de otimiza ode Portfólio”(SOP),基于混合整数线性规划(MILP),考虑到一定程度的风险,以条件风险价值(CVaR)为代表,旨在实现利润最大化。本文介绍了该模型背后的动机及其作为投资组合管理工具的潜在市场价值,特别是对能源零售商。定义了巴西能源市场的业务规则后,提出了一个案例研究,以比较优化的长期合同和没有任何优化的短期合同。在本案例研究中,使用该工具产生的利润价值为31%。
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引用次数: 1
Issues Of Developing Measures To Analyze Storage Medium For Educational Achievements Of Students 制定学生学业成绩存储介质分析措施的问题
Pub Date : 2022-05-09 DOI: 10.1109/energycon53164.2022.9830269
Vladimir Yavorskiy, D. Kaibassova, Yelena Klyuyeva
The article presents the results of a research on improving systems of storage and analysis of student educational achievements at the university. The educational achievements are the results of work of students on disciplines within the syllabus framework. When designing the storage for these educational achievements, it is proposed to build an ontology of the subject area, the main classes and slots are highlighted. To analyze student works, it is proposed to use document clustering methods that allow identifying groups of semantically similar documents among the specified fixed set of documents automatically. The article describes the used metrics of spatial similarity.
本文介绍了一项改进高校学生学业成绩存储与分析系统的研究成果。教育成果是学生在教学大纲框架内对学科进行学习的成果。在设计教育成果存储时,提出建立学科领域本体,突出主要类和槽。为了分析学生作品,建议使用文档聚类方法,该方法允许在指定的固定文档集中自动识别语义相似的文档组。本文描述了常用的空间相似性度量。
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引用次数: 0
Hybrid energy storage lifetime-oriented control strategy in islanded microgrids: A real time simulation case study 孤岛微电网混合储能寿命控制策略:实时仿真案例研究
Pub Date : 2022-05-09 DOI: 10.1109/energycon53164.2022.9830437
Tobias Häring, Luca Link, A. Rosin, H. Biechl
To reduce greenhouse gas emissions, volatile energy production from renewable sources is highly encouraged by international agreements. This leads to balancing challenges of demand and supply which can be addressed with smart grids or even smart city concepts. Demand side management control strategies for flexibility harvesting often include energy storage systems, like flywheel- (FESS) and battery (BESS) storages. To investigate different control strategies for a hybrid energy storage system with a flywheel and battery storage in an islanded microgrid, an existing flywheel is modernized with state-of-the-art components to support real time power hardware in the loop simulations. Testing a load levelling control strategy with this test bench showed that the cyclic lifetime of the battery storage system could be increased with peak shaving due to a reduced amount of charging and discharging operations. An excessive energy buffering control method could increase the islanded operation time by using nearly 10% of the otherwise lost energy. However, these results with the testbench showed limited use for research with the current setup due to low capacity and high self-discharge rate of the existing FESS. But due to the MATLAB-based programming interface, it is perfectly suitable as an educational setup for the demonstration of possible implementations of the European Green Deal.
为了减少温室气体排放,国际协议大力鼓励利用可再生能源生产不稳定的能源。这导致平衡需求和供应的挑战,这可以通过智能电网甚至智能城市概念来解决。灵活收集的需求侧管理控制策略通常包括能源存储系统,如飞轮(FESS)和电池(BESS)存储。为了研究孤岛微电网中具有飞轮和电池储能的混合储能系统的不同控制策略,对现有飞轮进行了现代化改造,配备了最先进的组件,以支持实时电源硬件在环仿真。利用该试验台对负载均衡控制策略进行了测试,结果表明,由于充放电操作的减少,电池储能系统的调峰可以增加循环寿命。过度能量缓冲控制方法可以利用近10%的能量损失来增加孤岛运行时间。然而,由于现有FESS的低容量和高自放电率,试验台的这些结果表明,目前的设置对研究的使用有限。但是由于基于matlab的编程接口,它非常适合作为示范欧洲绿色协议可能实施的教育设置。
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引用次数: 2
Coordination of Load Tap Changer and Distributed Energy Resources to Improve Long-term Voltage Stability 负载分接开关与分布式能源的协调以提高长期电压稳定性
Pub Date : 2022-05-09 DOI: 10.1109/energycon53164.2022.9830224
Minh-Quan Tran, T. Tran, P. Nguyen, L. Tuan
Along With the increased installation of the distributed energy resources (DER) in distribution system, long-term voltage stability at the transmission level can be improved if proper coordination is developed between DERs and the existing grid controllers, e.g., load tap changer (LTC). This paper analyzes the problem of long-term voltage instability and presenting possible countermeasures. The study summarizes essential aspects for modelling, including LTC, DERs, and especially voltage dependent load. A coordination between DERs and LTC is proposed to allocate better power supply, especially at the coupling points between transmission and distribution networks, i.e. primary substation. A case study is performed using a modified CIGRE medium-voltage benchmark network. The simulation results have shown that the coordination has substantially improved the long-term voltage stability in the way of using the reactive power support from DERs and increasing the LTC position instated of decreasing as the traditional method.
随着分布式能源(DER)在配电系统中的安装量的增加,如果分布式能源与现有电网控制器(如负荷分接开关(LTC))之间进行适当的协调,可以提高输电级电压的长期稳定性。本文分析了电压长期不稳定的问题,并提出了可能的对策。该研究总结了建模的基本方面,包括LTC, DERs,特别是电压相关负载。为了更好地分配电力供应,本文提出了分布式配电系统(DERs)和LTC之间的协调,特别是在输配电网络之间的耦合点,即主变电站。使用改进的CIGRE中压基准网络进行了案例研究。仿真结果表明,利用DERs的无功支持,提高LTC位置,而不是像传统方法那样降低LTC位置,大大提高了电压的长期稳定性。
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引用次数: 1
State-of-the-art Activity Recognition and Prediction Techniques Applicable to the Home Energy Management System 适用于家庭能源管理系统的最先进的活动识别和预测技术
Pub Date : 2022-05-09 DOI: 10.1109/energycon53164.2022.9830154
Hossein Nourollahi Hokmabad, J. Belikov, Oleksander Husev, D. Vinnikov
Owing to the tendency to convert ordinary homes to smart ones, there are novel opportunities for home energy management systems to exploit the binary and analog sensors collected information to enhance their performance. Having accurate forecasting about the behavior of house inhabitants, and their preferences could help the system be more efficient and reliable. In this paper, some state-of-the-art activity recognition and prediction techniques are reviewed and we introduce a conceptual platform for interactive collaboration between smart homes and energy management systems.
由于将普通家庭转换为智能家庭的趋势,家庭能源管理系统有新的机会利用二进制和模拟传感器收集的信息来提高其性能。准确预测房屋居民的行为和偏好,有助于提高系统的效率和可靠性。在本文中,我们回顾了一些最先进的活动识别和预测技术,并介绍了智能家居和能源管理系统之间交互协作的概念平台。
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引用次数: 0
期刊
2022 IEEE 7th International Energy Conference (ENERGYCON)
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