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2020 International Conference on Power, Energy and Innovations (ICPEI)最新文献

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Enhance Power Loss in Distribution System Synergy Photovoltaic Power Plant 提高配电系统的功率损耗协同光伏电站
Pub Date : 2020-10-14 DOI: 10.1109/ICPEI49860.2020.9431557
Papon Ngamprasert, P. Wannakarn, N. Rugthaicharoencheep
This paper presents an enhance power loss in distribution system synergy photovoltaic power plant. The enhance power loss is a factor in the efficiency of the power distribution system. Under technical constraints such as power flow and power loss. Modeling solution that uses the radius 33 bus. Distribution system with distributed generators (DG). It is therefore proposed in this paper to solve a solar power plant into the power distribution system problem based on a power loss synergy power flow algorithm. The results show that solar power plant can be enhance power loss on distribution system.
本文提出了一种提高配电系统中功率损耗的协同光伏电站。功率损耗的增加是影响配电系统效率的一个重要因素。在诸如功率流和功率损耗等技术限制下。使用半径33总线的建模解决方案。分布式发电机(DG)配电系统。因此,本文提出了一种基于功率损耗协同潮流算法来解决太阳能发电厂进入配电系统的问题。结果表明,太阳能电站可以提高配电系统的功率损耗。
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引用次数: 2
Voltage Stability Improvement Using Voltage Stability Index Optimization 利用电压稳定指标优化提高电压稳定性
Pub Date : 2020-10-14 DOI: 10.1109/ICPEI49860.2020.9431536
Sirote Khunkitti, S. Premrudeepreechacharn
Voltage stability improvement using line voltage stability index based on optimal power flow (OPF) in power systems is presented in this work. Line voltage stability index (LVSI) traditionally adopted to identify the most critical line in the system where its value is in the range of 0 (no load) and 1 (voltage collapse) has been applied as part of the constraints to prevent the system from the voltage collapse. LVSI has also been adopted as the objective function to enhance system stability. The OPF problems have been solved by using salp swarm optimization (SSO). The voltage stability improvement has been investigated in the IEEE 30-bus system. Two conditions consisting of stressed load condition where the load demand is raised and line outage contingency condition where the most critical line is considered for outage have been considered to evaluate the performance of the voltage stability improvement. The simulation results of considering LVSI as part of the constraints and objective function are compared with the base case where fuel cost is the objective function. The results express that the system stability can be significantly improved.
本文提出了基于最优潮流(OPF)的线路电压稳定指标提高电力系统电压稳定性的方法。线路电压稳定指数(LVSI)传统上用于识别系统中最关键的线路,其值在0(空载)和1(电压崩溃)范围内,作为防止系统电压崩溃的约束的一部分。还采用LVSI作为目标函数来增强系统的稳定性。利用salp群优化(SSO)方法解决了OPF问题。研究了IEEE 30总线系统中电压稳定性的提高。考虑了负荷需求提高的应力负荷条件和考虑最关键线路停电的线路停电应急条件两种情况,对电压稳定改善的效果进行了评价。将LVSI作为约束条件和目标函数的一部分的仿真结果与以燃料成本为目标函数的基本情况进行了比较。结果表明,该方法能显著提高系统的稳定性。
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引用次数: 4
Tie-Line Constrained Multi-Area Generation Scheduling Using Mixed Integer Programming Part I: Problem Formulation 基于混合整数规划的结合线约束多区域发电调度。第一部分:问题的表述
Pub Date : 2020-10-14 DOI: 10.1109/ICPEI49860.2020.9431395
N. Petcharaks, P. Nantiwattana, K. Chayakulkheeree, S. Nirukkanaporn
The objective of this research work is to search for an appropriate generation schedule satisfying system constraints and unit operation constraints with effective spinning reserve. The work was presented in two papers, which are part I and part II. This part I paper deploys the problem formulation of generation scheduling with virtual load constraints to ensure that spinning reserve could be used effectively without line congestion problem by expecting higher load demand in next few minutes. The part II paper is the simulation result and discussion of the proposed method. In the proposed method, the hybrid mixed integer programming process includes mixed-integer linear programming and quadratic programming (MILP-QP) is used to find the feasible solutions with total cost minimization while satisfying all important constraints. MILP is used to find generation schedule whereas QP is used to perform economic dispatch.
本文的研究目标是寻找一种既满足系统约束又满足机组运行约束且具有有效自旋储备的发电计划。这项工作在两篇论文中提出,这是第一部分和第二部分。本文第一部分提出了带虚拟负荷约束的发电调度问题公式,通过预期未来几分钟的高负荷需求,确保旋转备用能有效利用,不出现线路拥塞问题。第二部分是本文提出的方法的仿真结果和讨论。在该方法中,混合整数规划过程包括混合整数线性规划和二次规划(MILP-QP),用于在满足所有重要约束的情况下寻找总成本最小的可行解。MILP用于寻找发电计划,QP用于执行经济调度。
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引用次数: 0
Implementation of ZVDS Class-DE Bridge Rectifier with Series-Parallel Matching Network for High-Step Up ZVS Push-Pull Resonant Converter 大功率ZVS推挽式谐振变换器中ZVDS de类桥式整流器串并联匹配网络的实现
Pub Date : 2020-10-14 DOI: 10.1109/ICPEI49860.2020.9431440
C. Ekkaravarodome, K. Higuchi, K. Jirasereeamornkul
This paper presents an implementation of a zero-voltage and zero-derivative-switching (ZVDS) Class-DE bridge rectifier with an LCC series-parallel matching network to improve an output voltage regulation from light load to heavy load of a high-step up zero-voltage switching (ZVS) push-pull resonant converter. The LCC series-parallel matching network is placed between the secondary side of the transformer and the ZVDS Class-DE bridge rectifier. The secondary leakage inductance and the junction capacitance of the rectifier diodes can be used as part of the resonant inductor and the resonant capacitor, respectively. Additionally, the proposed push-pull resonant converter has a soft-switching characteristic that reduces switching losses and switching noise. A prototype for a 200 W front-end DC/DC converter for distributed power generation based on 24 VDC battery as an energy storage and 400 VDC output voltage has been developed and tested to evaluate the performance of the proposed approach.
本文提出了一种采用LCC串并联匹配网络的零电压零导数开关(ZVDS) de类桥式整流器,以改善高阶零电压开关(ZVS)推挽谐振变换器从轻负载到重负载的输出电压调节。LCC串并联匹配网络置于变压器二次侧与ZVDS de类桥式整流器之间。整流二极管的二次漏电感和结电容可分别作为谐振电感和谐振电容的一部分。此外,所提出的推挽谐振变换器具有软开关特性,降低了开关损耗和开关噪声。基于24 VDC电池储能和400 VDC输出电压的分布式发电200 W前端DC/DC变换器的原型已经开发和测试,以评估所提出的方法的性能。
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引用次数: 1
Control Algorithm of Hybrid Source for Photovoltaic and supercapacitor Power Plant 光伏与超级电容电站混合电源控制算法
Pub Date : 2020-10-14 DOI: 10.1109/ICPEI49860.2020.9431523
S. Sikkabut, B. Yodwong, Amorn Bunseng, Kanokwan Ruangsiri
This paper proposes a control algorithm for photovoltaic hybrid power system with a supercapacitor storage device and an energy management of AC distributed system supplied by a hybrid source that uses supercapacitor (SC) as secondary source, in association with a photovoltaic (PV) as the main source. In this power plant, the PV (1.5 kW) is used as the main source to supply power to the load and charge the SC, and the SC (41 F, 192 V) functions as an secondary power source to regulate the AC output voltage and control system performance when electrical loads demand high energy in a short time. The experimental results presented that the control algorithm of the hybrid power system can work efficiently.
提出了一种具有超级电容存储装置的光伏混合电源系统的控制算法,以及一种以超级电容为副源、光伏为主源的混合电源供电交流分布式系统的能量管理方法。本电站以1.5 kW的光伏为主电源,对负载进行供电,并对SC进行充电;当负荷在短时间内对能量要求较高时,SC (41 F, 192 V)作为辅助电源,调节交流输出电压,控制系统性能。实验结果表明,该混合动力系统的控制算法能够有效地工作。
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引用次数: 1
Analysis and Design of Wireless Charging Lane for Light Rail Transit 轻轨交通无线充电车道的分析与设计
Pub Date : 2020-10-14 DOI: 10.1109/ICPEI49860.2020.9431497
Watcharet Kongwarakom, T. Ratniyomchai, T. Kulworawanichpong
This paper presents an analysis and design of wireless charging lane system (WCLS) for light rail transit (LRT) by design model of WCLS with up to 9 models and analysis the power transfer while LRT passing the wireless charging lane. The dynamic of the vehicle movement in terms of the vehicle speed profile during running on the WCLS and the capacity of the WCLS in each section are taken into account to alignment the design of the WCLS to find out the best configuration of those 9 models. The service line of the LRT Korat Green Line is therefore an alternative that to analysis. However, the 9 models of WCLS has same distance in total and same speed profile throughout the moving on wireless charging lane.
采用多达9个型号的无线充电车道设计模型,对轻轨交通无线充电车道系统进行了分析与设计,并对轻轨交通通过无线充电车道时的功率传输进行了分析。考虑了车辆在WCLS上运行时的速度曲线和WCLS在各路段的承载能力,对WCLS的设计进行了调整,找出了这9种车型的最佳配置。因此,轻轨Korat绿线的服务线是一个可供分析的替代方案。然而,9款WCLS在无线充电车道上行驶的总距离和速度曲线相同。
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引用次数: 1
A Study and Planning of Electrical Energy Conservation in the Building: A Case Study of Rajasudasambhava 60 Building 建筑节能研究与规划——以Rajasudasambhava 60大厦为例
Pub Date : 2020-10-14 DOI: 10.1109/ICPEI49860.2020.9431417
Krishda Srichanpiyom, V. Siriariyaporn
The Energy Conservation Promotion Act 1992 and Energy Conservation Promotion Act 2007 (Version 2) promote the country to produce and use energies effectively and economically. In addition, they encourage people to make use of more alternative energies. In section 7, it is mentioned that energy conservation in factories can be done in one of the following ways: (5) improving electricity usage by correcting power factor, reducing peak electricity demand of the system, using electrical equipment which is suitable for the load, (6) the use of high-efficiency machinery or equipment including the operational system which controls them, the use of materials which help to conserve energies. In accordance with the Energy Conservation Promotion Act 1992 manual (amended in 2007), a building needs to be constructed with the standards, criteria and methods prescribed in the Ministerial Regulations. In Rajasudasambhava 60 Building, the sizes of each classroom and office are different, therefore the control system of electricity usage in each room is different, the number of lamps in each room is different, and the electrical energy which is consumed by the lamps in each room is different. In the present, energy conservation technology is diverse and it is easy to choose the right technology and electrical equipment which match the needs of consumers. Moreover, the use of electricity in the system becomes less and more economical. The researchers have created this project to study efficiency in each room. From the study, it is found that the electricity usage of the building is increasing every year. In 2019, the electricity usage increases from the year 2018 by 10.09% and the electricity usage in 2018 increases from 2017 by 1.49%. The difference of percentage of each year is quite obvious. Before the project had been undergone, most of the lamps are on the surface because the ceiling of the building has no cover, showing the pipes and conduits for the sake of maintenance. The lamps have the reflector which is made of shiny aluminium. Most of the lamp covers are acrylic and the power is 14 watts and 28 watts. The ballast is a low-loss type. The power consumption is 6 watts. Each lamp is turned on 301 days per year and 6 hours per day, approximately from 9.00-16.00 hrs. The average illumination is 1260 lux. The calculated illumination power is 59.6 watts per square meter in average. The process of this project is as followed: 1) using Dialux program to simulate the lighting system of 10 rooms. 2) experimenting by reducing energy consumption by two methods which are using natural light and changing electric lamps. The result is, when using natural light, the use of electricity is reduced by 11.74% and when changing electric lamps, the reduction is 39.12%. In conclusion, the lighting requirement of the building should be 1) to use more natural light. 2) when the lamp is damaged, the light bulb which is brighter than the original lamp should be replaced, so that we
1992年《节能促进法》和2007年《节能促进法》(第二版)促进国家有效和经济地生产和使用能源。此外,他们鼓励人们使用更多的替代能源。在第7节中,提到工厂的节能可以通过以下方式之一来完成:(5)通过校正功率因数来改善用电量,减少系统的峰值电力需求,使用适合负载的电气设备,(6)使用高效率的机械或设备,包括控制它们的操作系统,使用有助于节约能源的材料。根据1992年《节能促进法》手册(2007年修订),建筑需要按照部级条例规定的标准、标准和方法建造。在Rajasudasambhava 60 Building中,每个教室和办公室的大小不同,因此每个房间的用电量控制系统不同,每个房间的灯具数量不同,每个房间的灯具消耗的电能也不同。目前,节能技术是多种多样的,很容易选择合适的技术和电气设备,以满足消费者的需求。此外,电力在系统中的使用变得越来越少,越来越经济。研究人员创建了这个项目来研究每个房间的效率。从研究中发现,这座建筑物的用电量每年都在增加。2019年用电量比2018年增长10.09%,2018年用电量比2017年增长1.49%。每年的百分比差异相当明显。在项目进行之前,由于建筑物的天花板没有盖子,大部分灯具都在表面,为了维护,可以看到管道和导管。这些灯的反射器是由闪亮的铝制成的。大多数灯罩是亚克力,功率是14瓦和28瓦。镇流器是低损耗型的。功耗为6瓦。每盏灯每年打开301天,每天打开6小时,大约从9点到16点。平均照度为1260勒克斯。计算得出的照度功率平均为59.6瓦/平方米。本项目流程如下:1)使用Dialux程序模拟10个房间的照明系统。2)通过使用自然光和更换电灯两种方法进行减少能源消耗的试验。结果是,使用自然光时,电的使用量减少11.74%,更换电灯时,减少39.12%。综上所述,建筑的采光要求应该是1)使用更多的自然光。2)当灯损坏时,应该更换比原灯更亮的灯泡,这样我们可以选择打开某一盏灯,而不必一次打开所有的灯。3)安装一个显示灯位置的图表,方便选择开/关灯。
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引用次数: 0
Modeling and Analysis of Fuel Cell Systems for Stationary Applications 固定式燃料电池系统的建模与分析
Pub Date : 2020-10-14 DOI: 10.1109/ICPEI49860.2020.9431570
Boribun Banyat
This paper proposes the analysis and modeling of the fuel cell (FC) systems for stationary applications. The simulation of PEMFC and SOFC has been modeled and coding in the GNU Octave environments. The steady-state and dynamical operation of PEMFC and SOFC technologies has been analyzed and compared their main characteristics, such as the air response, hydrogen flow rate, and pressure regulation.
本文对固定式燃料电池(FC)系统进行了分析和建模。在GNU Octave环境中对PEMFC和SOFC的仿真进行了建模和编码。分析和比较了PEMFC和SOFC技术的稳态和动态运行特性,如空气响应、氢气流量和压力调节。
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引用次数: 1
Home Energy Management System Based on The Photovoltaic – Battery Hybrid Power System 基于光伏-电池混合动力系统的家庭能源管理系统
Pub Date : 2020-10-14 DOI: 10.1109/ICPEI49860.2020.9431560
Nonthanan Phonphan, P. Khamphakdi
This paper introduces optimal energy management for a grid-connected photovoltaic - battery hybrid power system. Management of power flow is necessary to minimize electricity cost which subject to power balance, solar output, and battery capacity. The conditions of simulation model testing depend on the load profiles in each day and the energy unit rate with time of use rate (TOU) pricing. The simulation study cases consist of seven cases. The results show that the system with the PSO technique and the FLC application can reduce the energy cost in significantly. In addition, the simulation accomplished to verify the system usefulness to enhance home energy management system by reducing the peak demand.
介绍了光伏-电池并网混合电力系统的最优能量管理问题。为了最大限度地降低受电力平衡、太阳能输出和电池容量影响的电力成本,有必要对电力流进行管理。模拟模型试验的条件取决于每天的负荷分布和单位电价与分时电价(TOU)定价。仿真研究案例由7个案例组成。结果表明,采用PSO技术和FLC技术的系统可以显著降低系统的能耗。此外,通过仿真验证了该系统对降低高峰需求,增强家庭能源管理系统的实用性。
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引用次数: 3
Optimal Distribution Network Reconfiguration Implemented with Tie Line and Capacitor Using Improved Particle Swarm Optimization 利用改进粒子群算法实现带连接线和电容的配电网优化重构
Pub Date : 2020-10-14 DOI: 10.1109/ICPEI49860.2020.9431479
Chatuphat Karaaom, P. Jirapong, P. Thararak
Regarding the increase in electrical power demands, distributed generations (DGs) from renewable energy resources are becoming essential for electrical generation systems. However, there are no specific requirements for DGs allocation in a distribution network. The improper installation of the DGs can cause crucial issues to electric utilities and customers, such as the increase in energy losses and the improper voltage drop in the networks. In this paper, the optimal distribution network reconfiguration implemented with a tie line and a capacitor is proposed to enhance system efficiency and mitigate the impacts of the improper DGs installation. The optimal allocation of the tie line and the capacitor is determined using an improved particle swarm optimization (I-PSO) technique to minimize the energy losses and improve the voltage profile. The proposed network reconfiguration approach is implemented into a practical distribution network with a high installed capacity of the biomass DG unit from Kamphaeng Phet province, Thailand. The simulation test results show that the proposed approach can significantly reduce not only the energy losses but also the voltage drop in the network.
随着电力需求的增加,可再生能源的分布式发电(dg)在发电系统中变得越来越重要。配电网对dg的分配没有具体的要求。dg安装不当会给电力公司和用户造成重大问题,如电能损耗增加、电网电压下降不当等。为了提高系统效率,减轻配电系统安装不当所带来的影响,本文提出了配电网优化配置的方法,即在配电网中加入一条联络线和一个电容器。采用改进的粒子群优化(I-PSO)技术确定了联络线和电容器的最佳配置,以最大限度地减少能量损失并改善电压分布。提出的网络重构方法被实施到一个实际的配电网络中,该网络具有来自泰国坎彭彭省的高装机容量的生物质DG单元。仿真测试结果表明,该方法不仅能显著降低电网的能量损失,而且能显著降低电网的电压降。
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引用次数: 0
期刊
2020 International Conference on Power, Energy and Innovations (ICPEI)
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