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

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Partial Buck-Boost Resonant Power Converter for Residential PV Applications 住宅光伏应用的部分降压-升压谐振功率变换器
Pub Date : 2022-05-09 DOI: 10.1109/energycon53164.2022.9830394
O. Abdel-Rahim, A. Chub, A. Blinov, D. Vinnikov
This paper suggests the implementation of the partial power converter for PV power processing instead of full power converter for better system efficiency and robustness. Processing a percentage of the total power, instead of processing the full power, improves system efficiency and reduces system cost and size. In this paper, an input parallel output series (PISO) buck-boost partial power converter is presented. The first stage of the system is controlled to ensure that PV panels are operating at the maximum power (MP). And the second resonant stage is controlled to fix the dc-bus voltage. Although the system has five-switches, four of them are operating in zero voltage and current switching, to eliminate switching losses of the system. Converter sharing percentage is adjusted to ensure optimum operation of the complete PV system. System analysis and simulation are demonstrated through the manuscript. Experimental and more comparative analysis will be presented in the final version.
为了提高系统的效率和鲁棒性,建议采用部分功率变换器代替全功率变换器进行光伏发电处理。处理总功率的一部分,而不是处理全部功率,提高了系统效率,降低了系统成本和尺寸。本文提出了一种输入并联输出串联(PISO)降压升压部分功率变换器。控制系统的第一阶段,以确保光伏板在最大功率(MP)下运行。控制第二谐振级固定直流母线电压。虽然系统有5个开关,但其中4个开关工作在零电压和零电流开关,以消除系统的开关损耗。调整转换器共享百分比以确保整个光伏系统的最佳运行。通过论文对系统进行了分析和仿真。实验和更多的比较分析将在最终版本中呈现。
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引用次数: 1
Design of a cost-effective waste to energy system with storage for a typical African animal farm 为一个典型的非洲动物农场设计一个具有成本效益的废物转化为能源的储存系统
Pub Date : 2022-05-09 DOI: 10.1109/energycon53164.2022.9830522
C. Bailey, S. Chowdhury
With increasing electricity tariffs for African farmers, as well as pressure on global energy sectors to end their reliance on coal, a renewable system that has the potential to cut both costs and emissions would be a valuable resource. This paper details a waste-to-energy system intended for African animal farms. A focus on animal farms in Africa is important as many African power supply utilities are unreliable and rural areas are often at a loss for power. Africa, as a largely developing continent, is well suited to lead the way in a novel system of on-farm energy production. This paper shows that a system with 84% biomass and 16% PV supply provides an African farmer with the ability to save more than R6 million over the project’s lifespan of 20 years, while also recycling a waste resource and cutting methane emissions.
随着非洲农民的电费不断上涨,以及全球能源部门面临着结束对煤炭依赖的压力,一个既能降低成本又能减少排放的可再生能源系统将是一种宝贵的资源。这篇论文详细介绍了一个为非洲动物养殖场设计的废物转化能源系统。关注非洲的动物农场很重要,因为非洲许多电力供应设施不可靠,农村地区经常停电。非洲作为一个主要发展中的大陆,非常适合在农场能源生产的新系统中发挥领导作用。本文表明,一个84%生物质和16%光伏供应的系统在项目20年的生命周期内为非洲农民节省了600多万兰特,同时还回收了废物资源并减少了甲烷排放。
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引用次数: 0
Comparison of Different Computational Methods and Formulations for Hydropower Equivalents 水电当量不同计算方法和公式的比较
Pub Date : 2022-05-09 DOI: 10.1109/energycon53164.2022.9830320
Evelin Blom, L. Söder
Simplified models of hydropower systems are necessary for simulation of large power systems, long-term analysis, and future studies. One common simplification has been to aggregate all hydropower within an area based on historical data. Another option is to use mathematical so-caned hydropower Equivalents. Here, hydropower Equivalents represent an optimized model reduction of a more Detailed model depicting the complete hydropower system within a specific area. These Equivalents are computed based on a bilevel optimization problem formulation. In this paper, the impact different Equivalent model constraints have on the performance is analyzed via a novel investigation of new model formulations. Moreover, recent solution methods and a baseline aggregation of the hydropower from statistics are compared and evaluated for the first time. All bilevel Equivalents show a significantly better performance than the baseline aggregation; the accuracy in hourly power generation relative to the Detailed model is almost twice as high for all bilevel Eqmvalents.
水电系统的简化模型对于大型电力系统的仿真、长期分析和未来研究都是必要的。一种常见的简化方法是根据历史数据汇总一个地区内的所有水电。另一种选择是使用数学上的水电当量。在这里,水电当量代表了对特定区域内完整水电系统的更详细模型的优化模型缩减。这些当量是基于双层优化问题公式计算的。本文通过对新模型公式的研究,分析了不同等效模型约束对性能的影响。此外,本文还首次对近年来的求解方法和水电统计的基线汇总进行了比较和评价。所有双级当量显示出明显优于基线聚合的性能;与详细模型相比,每小时发电量的准确性几乎是所有双层等效模型的两倍。
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引用次数: 2
Modelling of Building Sector Impact on Decarbonization of the Baltic Energy System 建筑部门对波罗的海能源系统脱碳影响的建模
Pub Date : 2022-05-09 DOI: 10.1109/energycon53164.2022.9830169
J. Teremranova, D. Zalostiba
In the summer of 2021, the European Commission presented a package of climate legislation (Fit for 55). It adjusts the European Union’s (EU) policies on climate, energy, land use, transport, and taxation to reduce net greenhouse gas emissions by at least 55 % by 2030 compared to 1990 levels. 2030 has become a milestone and an intermediate target for carbon neutrality in 2050. What does this mean for different energy sectors? How will energy stakeholders act to achieve the ambitious goals of climate neutrality in the coming decades? Are the goals set achievable for Latvia and Baltics, and how can building sector energy consumers help with their behavior changing and recent technology introduction? To answer these questions different building stock energy modelling scenarios have been elaborated using the Baltic Backbone model to find the best cost-effective way to meet all requirements and needs. The main results of modelling are presented and analyzed in this paper.
2021年夏天,欧盟委员会提出了一揽子气候立法(适合55年)。它调整了欧盟在气候、能源、土地利用、交通和税收方面的政策,以期到2030年将温室气体净排放量在1990年的水平上至少减少55%。2030年已成为实现2050年碳中和的一个里程碑和中间目标。这对不同的能源部门意味着什么?能源利益相关者将如何采取行动,在未来几十年实现气候中和的宏伟目标?为拉脱维亚和波罗的海国家设定的目标是否可以实现?建筑行业的能源消费者如何帮助他们改变行为和引进最新技术?为了回答这些问题,我们使用波罗的海主干模型详细阐述了不同的建筑存量能源建模方案,以找到满足所有要求和需求的最具成本效益的方法。本文给出了模型的主要结果并进行了分析。
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引用次数: 1
Modelling a Hybrid Renewable Energy System for Recharging Electric Vehicles 电动汽车充电的混合可再生能源系统建模
Pub Date : 2022-05-09 DOI: 10.1109/energycon53164.2022.9830232
Paula Bastida-Molina, I. N. Jiya, Van Khang Huynh
Cold countries with low irradiance values have typically used utility grid to support solar PV systems. However, the extended option is facing new challenges: the electricity tariffs increase and the expected high penetration of EVs, which can increase the pressure on the grid. In this research, a prototype simulation model of a solar PV-batteries-grid HRES to cover recharge of EVs was developed. The system was simulated in MATLAB®, with a control algorithm based on power balance between EVs load demand-solar PV generation, and the state of charge (SOC) of the batteries. The results indicate the suitability of the simulation model. It can select the appropriate support system according to the control algorithm. Moreover, the two scenarios presented for the case study reflect the importance of the initial SOC, since it will directly affect the availability of batteries for covering electricity shortfalls.
辐照度低的寒冷国家通常使用公用电网来支持太阳能光伏系统。然而,延长选项正面临新的挑战:电价上涨和电动汽车的预期高渗透率,这可能会增加电网的压力。在本研究中,建立了覆盖电动汽车充电的太阳能光伏-电池-电网HRES原型仿真模型。在MATLAB®中对系统进行仿真,采用基于电动汽车负载需求-太阳能光伏发电和电池荷电状态(SOC)之间功率平衡的控制算法。结果表明了该仿真模型的适用性。它可以根据控制算法选择合适的支持系统。此外,为案例研究提出的两种情况反映了初始SOC的重要性,因为它将直接影响电池的可用性,以弥补电力短缺。
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引用次数: 0
Online Learning Technologies 在线学习技术
Pub Date : 2022-05-09 DOI: 10.1109/energycon53164.2022.9830387
A. Kintonova, I. Povkhan, A. Sabitov, Aizhan Tokkuliyeva, Natalya Demidchik
The paper describes the technology for creating an online course using the Learme online courses platform, ArticulateStoryline software. Organization of an online course, a brief description of the implementation of an online course based on elearning standards. The article reflects the results of the design and implementation of the online course “Web-programming” based on the e-learning standard.Development of an intelligent training course using data mining algorithms. Intelligent algorithms (data mining algorithms) underlie the development of intelligent technologies in scientific and electronic educational processes.
本文介绍了利用Learme在线课程平台ArticulateStoryline软件创建在线课程的技术。组织在线课程,简要描述基于电子学习标准的在线课程的实施。本文反映了基于e-learning标准的《Web-programming》在线课程设计与实现的结果。利用数据挖掘算法开发智能培训课程。智能算法(数据挖掘算法)是科学和电子教育过程中智能技术发展的基础。
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引用次数: 3
Nigerian Distribution Network Feeder Impact Assessment with Integration of Electric Vehicles 整合电动汽车的尼日利亚配电网馈线影响评估
Pub Date : 2022-05-09 DOI: 10.1109/energycon53164.2022.9830280
Ye-Obong N. Udoakah, H. B. Sonder, L. Cipcigan
Electric Vehicle (EV) charging is classified into two major categories, depending on the type of chargers used. These are referred to as Alternating Current (AC) and Direct Current (DC) chargers. EVs' batteries are charged by an external source of electricity, such as the grid. Achieving the required charging voltage, charging current, and the charging power for the EV batteries requires power electronic interfaced technologies. AC charging requires an AC to DC converter, which is usually performed within the vehicle itself. DC charging, on the other hand, utilises an off-board converter to get DC power. The dynamic behaviour of power systems has changed drastically due to the increased usage of power electronic interfaced technologies. This paper presents different EV integration scenarios into a Nigerian distribution network feeder that serves both residential and commercial customers. The PSCADIEMTDC simulation software is used to investigate the impacts of different charger topologies from a grid perspective. The sizing of an appropriate filter is also proposed to help mitigate harmonic distortion introduced by various battery chargers in the network. The paper results bolster confidence in the ability of EVs and associated charging methods to be incorporated in different nations’ distribution network feeders via appropriate technologies while maintaining grid safety and reliability.
根据所使用的充电器类型,电动汽车(EV)充电分为两大类。它们被称为交流(AC)和直流(DC)充电器。电动汽车的电池由外部电源充电,比如电网。实现电动汽车电池所需的充电电压、充电电流和充电功率需要电力电子接口技术。交流充电需要一个交直流转换器,这通常在车辆内部进行。另一方面,直流充电利用板外转换器获得直流电源。由于电力电子接口技术的使用增加,电力系统的动态行为发生了巨大的变化。本文介绍了不同的电动汽车集成到尼日利亚的配电网络馈线,为住宅和商业客户提供服务。使用PSCADIEMTDC仿真软件从电网角度研究不同充电器拓扑结构的影响。本文还提出了合适滤波器的尺寸,以帮助减轻网络中各种电池充电器带来的谐波失真。本文的研究结果增强了人们对电动汽车和相关充电方法的信心,这些方法可以通过适当的技术纳入不同国家的配电网馈线,同时保持电网的安全性和可靠性。
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引用次数: 0
Controllability of an unmanned aerial vehicle 无人驾驶飞行器的可控性
Pub Date : 2022-05-09 DOI: 10.1109/energycon53164.2022.9830244
A. Mazakova, Sholpan Jomartova, T. Mazakov, Timur Shormanov, B. Amirkhanov
The article deals with the problem of analyzing the controllability of an unmanned aerial vehicle based on interval analysis, computer algebra. On the basis of interval mathematics, a criterion for the controllability of the system under study was obtained. When developing the software, the library of interval mathematics was used. The developed software that implements the introduced interval arithmetic operations can be used in the study of the dynamic properties of automatic control systems, energy, economic and other nonlinear systems.
本文研究了基于区间分析和计算机代数的无人机可控性分析问题。在区间数学的基础上,给出了系统可控性的判据。在软件开发过程中,使用了区间数学库。所开发的软件实现了所介绍的区间算术运算,可用于自动控制系统、能源、经济等非线性系统的动态特性研究。
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引用次数: 1
Three-phase multi-frequency energy transfer system for realizing the energy internet 实现能源互联网的三相多频能量传输系统
Pub Date : 2022-05-09 DOI: 10.1109/energycon53164.2022.9830259
Hamed Athari, D. Raisz
The endeavor to increase the integration of distributed power generation systems (DPGS) into the electric power system brings about new research areas, one of them is the energy internet concept. Similarly to the information internet, the energy internet would transfer packets as the units of energy. To avoid congestions in the packet dispatching process, routers and routing methods have been suggested in literature. Our proposal is to use multiple channels simultaneously. In this paper, the possibility of three-phase multi-frequency energy transfer is investigated. This task is performed by using grid-forming and grid-feeding converters. To have a balanced three-phase multi-frequency power system, the third harmonic component of the fundamental frequency is added to the power system as a zero-sequence signal. The control system consists of two parts. The grid-forming controller is responsible for the voltage and the respective frequency. The grid-feeding controller controls the powers and current of the grid-feeding converter. For doing so, both control systems should be able to decouple the frequencies from each other. As a result, the active and reactive powers can be transferred separately at different frequencies.
将分布式发电系统(DPGS)集成到电力系统的努力带来了新的研究领域,其中之一就是能源互联网概念。与信息互联网类似,能源互联网将以能量为单位传输数据包。为了避免分组调度过程中的拥塞,文献中提出了路由器和路由方法。我们的建议是同时使用多个通道。本文研究了三相多频能量传递的可能性。这项任务是通过使用网格形成和网格馈送转换器来完成的。为了使三相多频电力系统平衡,在电力系统中加入基频的三次谐波分量作为零序信号。控制系统由两部分组成。电网形成控制器负责电压和相应的频率。并网控制器控制并网变流器的功率和电流。为了做到这一点,两个控制系统应该能够相互解耦频率。因此,有功和无功功率可以在不同的频率下分别传输。
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引用次数: 1
The Green Transition of the Energy Industry: How to Define the Role of the Government 能源产业的绿色转型:如何界定政府角色
Pub Date : 2022-05-09 DOI: 10.1109/ENERGYCON53164.2022.9830165
Jianfei Shen, Yang Yang, W. Liu, Yi Shen
Speeding up the construction of ecological civilization and promoting the green transformation is an inevitable trend to form a new industrialization path with Chinese characteristics. This study first defines the boundaries of role of government in the transit to a green transformation of energy industry, and then analyses the mechanism of a series of economic policies formulated by the government on the transformation of enterprises in industrial structure upgrading, human capital appreciation as well as the introduction of foreign capital on the basis of technology upgrading. Finally, considering the regional heterogeneity and different government entities, a coordinated mechanism of law enforcement and supervision is proposed to provide supplements and detailed interpretation to the green transformation policy of the energy industry.
加快生态文明建设,推进绿色转型,是形成中国特色新型工业化道路的必然趋势。本研究首先界定了政府在能源产业向绿色转型过程中的角色边界,然后分析了政府制定的一系列经济政策在产业结构升级、人力资本增值以及技术升级基础上引入外资等方面对企业转型的作用机制。最后,考虑到区域异质性和政府主体的不同,提出了一种执法与监管协调机制,为能源产业绿色转型政策提供补充和详细解释。
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引用次数: 0
期刊
2022 IEEE 7th International Energy Conference (ENERGYCON)
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