2016 IEEE PES PowerAfrica最新文献_第3页

Minimum emission dispatch in an integrated thermal and wind energy conservation system using self-adaptive differential evolution 基于自适应差分进化的热风集成节能系统最小排放调度

2016 IEEE PES PowerAfrica Pub Date : 2016-06-01 DOI: 10.1109/POWERAFRICA.2016.7556615

S. S. Reddy, J. Momoh

引用次数: 4

Design and energy yield analysis of a hybrid renewable power system 混合可再生能源发电系统的设计与发电量分析

2016 IEEE PES PowerAfrica Pub Date : 2016-06-01 DOI: 10.1109/POWERAFRICA.2016.7556609

D. Mulongoti, M. Hakakole, A. Mulembo, K. Banda

{"title":"Design and energy yield analysis of a hybrid renewable power system","authors":"D. Mulongoti, M. Hakakole, A. Mulembo, K. Banda","doi":"10.1109/POWERAFRICA.2016.7556609","DOIUrl":"https://doi.org/10.1109/POWERAFRICA.2016.7556609","url":null,"abstract":"The population of Zambia has rapidly grown in the past 56 years and so has the demand for electric power. Limited generation capacity and increased load shedding of hydroelectric power has influenced the shifting of attention to renewable energy sources. The Copperbelt province in Zambia is an important case study in the context of renewable energy because it possesses relatively high profusion of solar radiation, abundant bio-energy resources and moderate wind speeds. This paper discusses the design of an efficient system of sustainable renewable energy for domestic use and the estimated energy output from the ten districts in the province. The method of this study was collection of basic data for solar radiation, biomass (brewery waste, pigs, goats and cow manure) and wind speeds, followed by hybrid optimization simulation model using the software HOMER. The study is targeted at domestic and micro industrial applications. However, feeding power from these sources into the main grid can be considered as an option. The simulation model has been used to find out the most cost effective, renewable based energy system. It also presents results in an efficient and economical way for different numbers of households.","PeriodicalId":177444,"journal":{"name":"2016 IEEE PES PowerAfrica","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115457370","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Investigation of an optimized energy resource allocation algorithm for a community based virtual power plant 基于社区的虚拟电厂优化能源分配算法研究

2016 IEEE PES PowerAfrica Pub Date : 2016-06-01 DOI: 10.1109/POWERAFRICA.2016.7556590

O. Okpako, H. Rajamani, P. Pillai, Ugonna Anuebunwa, K. Swarup

{"title":"Investigation of an optimized energy resource allocation algorithm for a community based virtual power plant","authors":"O. Okpako, H. Rajamani, P. Pillai, Ugonna Anuebunwa, K. Swarup","doi":"10.1109/POWERAFRICA.2016.7556590","DOIUrl":"https://doi.org/10.1109/POWERAFRICA.2016.7556590","url":null,"abstract":"Recently, significant advances in renewable energy generation have made it possible to consider consumers as prosumers. However, with increase in embedded generation, storage of electrical energy in batteries, flywheels and supercapacitors has become important so as to better utilize the existing grid by helping smooth the peaks and troughs of renewable electricity generation, and also of demand. This has led to the possibility of controlling the times when stored energy from these storage units is fed back to the grid. In this paper we look at how energy resource sharing is achieved if these storage units are part of a virtual power plant. In a virtual power plant, these storage units become energy resources that need to be optimally scheduled over time so as to benefit both prosumer and the grid supplier. In this paper, a smart energy resources allocation algorithm is presented for a virtual power plants using genetic algorithms. It is also proposed that the cause of battery depreciation be accounted for in the allocation of discharge rates. The algorithm was tested under various pricing scenarios, depreciation cost, as well as constraint. The results are presented and discussed. Conclusions were drawn, and suggestion for further work was made.","PeriodicalId":177444,"journal":{"name":"2016 IEEE PES PowerAfrica","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132617942","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7

Role of grid integration of distributed generation in power quality enhancement: A review 分布式发电并网在提高电能质量中的作用综述

2016 IEEE PES PowerAfrica Pub Date : 2016-06-01 DOI: 10.1109/POWERAFRICA.2016.7556593

T. Matlokotsi, S. Chowdhury

引用次数: 4

Optimal tuning of governors on synchronous generators in a multi-area power system with a large photovoltaic plant 大型光伏电站多区域电力系统同步发电机调速器的优化调谐

2016 IEEE PES PowerAfrica Pub Date : 2016-06-01 DOI: 10.1109/POWERAFRICA.2016.7556610

S. Rosen, Paranietharan Arunagirinathan, Iroshani Jayawardene, G. Venayagamoorthy

{"title":"Optimal tuning of governors on synchronous generators in a multi-area power system with a large photovoltaic plant","authors":"S. Rosen, Paranietharan Arunagirinathan, Iroshani Jayawardene, G. Venayagamoorthy","doi":"10.1109/POWERAFRICA.2016.7556610","DOIUrl":"https://doi.org/10.1109/POWERAFRICA.2016.7556610","url":null,"abstract":"The integration of renewables, such as solar and wind power, introduces new challenges for existing multi-area power system operations. These variable generation sources are transforming the grid into a more dynamic system which significantly affects real-time operation. With dynamic generation, supply and demand will deviate frequently over time causing severe frequency fluctuations. The generators on the grid must respond rapidly to these fluctuations in order to stabilize the system and ultimately return to nominal frequency. In this paper, a 210 MW photovoltaic (PV) plant is integrated into a two-area four-machine power system. Due to the output variations of the PV plant, especially during cloudy conditions, the system frequency will significantly fluctuate. The objective of this paper is the optimal tuning of governors on synchronous generators in order to damp and mitigate frequency deviations as fast as possible. The governor parameters are tuned using a heuristic optimization method to provide the least number of frequency events and minimum frequency deviation with varying penetration levels of PV power. With optimally tuned governor parameters, a multi-area power system can operate reliably while maximizing the utilization of clean power generation sources.","PeriodicalId":177444,"journal":{"name":"2016 IEEE PES PowerAfrica","volume":"127 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124310829","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Modeling the condition of lithium ion batteries using the extreme learning machine 利用极限学习机对锂离子电池的状态进行建模

2016 IEEE PES PowerAfrica Pub Date : 2016-06-01 DOI: 10.1109/POWERAFRICA.2016.7556597

A. Densmore, M. Hanif

引用次数: 10

Factors and options for improved frequency regulation: Case study of utility scale solar in Nigeria 改善频率调节的因素和选择:尼日利亚公用事业规模太阳能案例研究

2016 IEEE PES PowerAfrica Pub Date : 2016-06-01 DOI: 10.1109/POWERAFRICA.2016.7556604

B. Rawn, T. Nwachukwu, E. Cebeci

引用次数: 0

On the transmission power transformers in Nigeria: Lagos sub region as case study 尼日利亚输电变压器:以拉各斯地区为例

2016 IEEE PES PowerAfrica Pub Date : 2016-06-01 DOI: 10.1109/POWERAFRICA.2016.7556594

T. Ayodele, A. Ogunjuyigbe, O. Ojo

引用次数: 1

Implementation of smart interface subsystems for enhanced control and communication in smartgrids 智能电网中用于增强控制和通信的智能接口子系统的实现

2016 IEEE PES PowerAfrica Pub Date : 2016-06-01 DOI: 10.1109/POWERAFRICA.2016.7556561

Amini Ntakirutimana, T. Ustun

引用次数: 0

Application of best first search algorithm to demand control 最佳优先搜索算法在需求控制中的应用

2016 IEEE PES PowerAfrica Pub Date : 2016-06-01 DOI: 10.1109/POWERAFRICA.2016.7556568

Kashale Chimanga, J. Kalezhi, P. Mumba

引用次数: 9