2015 50th International Universities Power Engineering Conference (UPEC)最新文献

Voltage control for unbalanced low voltage grids using a decoupled-phase on-load tap-changer transformer and photovoltaic inverters 采用相分离有载分接变压器和光伏逆变器的不平衡低压电网电压控制

2015 50th International Universities Power Engineering Conference (UPEC) Pub Date : 2015-12-03 DOI: 10.1109/UPEC.2015.7339880

Antonio Zecchino, M. Marinelli, Junjie Hu, M. Coppo, R. Turri

引用次数: 14

Multifractal detrended cross-correlation analysis of Indian Electricity market 印度电力市场的多重分形去趋势互相关分析

2015 50th International Universities Power Engineering Conference (UPEC) Pub Date : 2015-12-03 DOI: 10.1109/UPEC.2015.7339850

M. Pal, P. Madhusudana Rao, P. Manimaran

{"title":"Multifractal detrended cross-correlation analysis of Indian Electricity market","authors":"M. Pal, P. Madhusudana Rao, P. Manimaran","doi":"10.1109/UPEC.2015.7339850","DOIUrl":"https://doi.org/10.1109/UPEC.2015.7339850","url":null,"abstract":"In this paper, we investigate the cross-correlation behavior and multifractal characteristics of Indian electricity energy exchange rate time series of two extreme season's i.e. summer and winter through the recently developed multifractal detrended cross-correlation analysis method. For this purpose, we have collected the time series over 15 min time interval of the electricity market clearing volume and price before transmission congestion during peak summer i.e. month of May and peak winter i.e. month of December for the years 2012, 2013 and 2014. The cross-correlation analysis was carried out between volume and price of summer and winter data. From our analysis, we observe a cross over in time scale s* of the fluctuation function and the scaling exponents were calculated for long term (>s*) and short term (<; s*). For long term, cross-correlation behavior between price and volume show strong anti persistent behavior for both for summer and winter whereas in short-term, cross-correlation show persistent behavior for both summer and winter except summer in the year 2012. The multifractal nature is present in all the bivariate time series in all the years.","PeriodicalId":446482,"journal":{"name":"2015 50th International Universities Power Engineering Conference (UPEC)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117184987","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: 2

Model predictive control scheme for investigating demand side flexibility in Singapore 研究新加坡需求侧灵活性的模型预测控制方案

2015 50th International Universities Power Engineering Conference (UPEC) Pub Date : 2015-12-03 DOI: 10.1109/UPEC.2015.7339769

Sarmad Hanif, Dante F. Recalde Melo, Mehdi Maasoumy, Tobias Massier, T. Hamacher, T. Reindl

{"title":"Model predictive control scheme for investigating demand side flexibility in Singapore","authors":"Sarmad Hanif, Dante F. Recalde Melo, Mehdi Maasoumy, Tobias Massier, T. Hamacher, T. Reindl","doi":"10.1109/UPEC.2015.7339769","DOIUrl":"https://doi.org/10.1109/UPEC.2015.7339769","url":null,"abstract":"Recently, power systems have experienced various changes, the most important one being the increase in the share of highly variable renewable energy supply (RES). To counteract the variability of RES, provision of flexibility from the demand side seems to be a viable option. In this paper, the heating, ventilation and air conditioning (HVAC) system, mostly installed in medium to large sized office buildings, is selected to provide demand side flexibility. A model predictive control (MPC) scheme in a receding horizon environment is deployed to provide an economic operation of the building, while respecting comfort constraints of dwellers. Furthermore, robustness is introduced in the MPC scheme to participate in both the energy and reserve market. Simulations are performed to demonstrate the performance of the developed controller under various price signals. In doing so, the controller is also evaluated with respect to its sensitivity towards economical and technical constraints. The National Electricity Market of Singapore (NEMS) is used as a case study and the most important parameters governing the challenges for integrating demand side flexibility in the grid are pointed out.","PeriodicalId":446482,"journal":{"name":"2015 50th International Universities Power Engineering Conference (UPEC)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117348045","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: 12

Application of M-MACBETH for defining an efficient operating regime of distributed generation sources connected to distribution network M-MACBETH在确定接入配电网的分布式发电源的有效运行状态中的应用

2015 50th International Universities Power Engineering Conference (UPEC) Pub Date : 2015-12-03 DOI: 10.1109/UPEC.2015.7339801

L. Canha, A. Barin, W. Brignol, D. Carli

引用次数: 0

Assessment of genetic algorithm selection, crossover and mutation techniques in power loss optimization for a hydrocarbon facility 油气设施电力损耗优化中的遗传算法选择、交叉和突变技术评价

2015 50th International Universities Power Engineering Conference (UPEC) Pub Date : 2015-12-03 DOI: 10.1109/UPEC.2015.7339894

M. T. Al-Hajri, M. A. Abido, M. Darwish

引用次数: 5

Optimal allocation of energy storage in a future congolese power system 未来刚果电力系统中储能的优化配置

2015 50th International Universities Power Engineering Conference (UPEC) Pub Date : 2015-12-03 DOI: 10.1109/UPEC.2015.7339933

A. Akele-sita, S. Chowdhury

{"title":"Optimal allocation of energy storage in a future congolese power system","authors":"A. Akele-sita, S. Chowdhury","doi":"10.1109/UPEC.2015.7339933","DOIUrl":"https://doi.org/10.1109/UPEC.2015.7339933","url":null,"abstract":"The Democratic Republic of Congo is facing a dramatic electricity crisis. For the population, the access to electricity is 1% in rural areas, 30% for cities and 9% nationally. Energy supply based on renewable energy source is one of the promising solutions for now or in the future to deal with the limited fossil fuel resources as well as the emission of harmful waste. Out of various renewable resources the sun, wind and biomass associated with energy storage are considered to hold one of the most promising alternative to the electricity crisis in Democratic Republic of Congo (DRC). A large central power plant associated with many smaller power sources closer to customers can provide power to all provinces, cities, municipalities and villages of the DRC holding down the price. Using renewable energy generators at the location of high harvest potential, appropriate rating and location of storage and transmission system between different regions, a cost efficient system can be achieved. This study facilitates the best storage system associated with the integration of renewable energy technology into the multiple DRC power plant systems. The benefits of such systems will include high reliability, lower cost, and fewer blackouts. This research intends to present the solution that will produce electricity from renewable energies (Sun, Wind and Biomass) into the main grid at lower cost when using a suitable energy storage system.","PeriodicalId":446482,"journal":{"name":"2015 50th International Universities Power Engineering Conference (UPEC)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125114922","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

Determination of minimum air clearances for a 420kV novel unibody composite cross-arm 420kV新型单体复合横臂最小空气间隙的测定

2015 50th International Universities Power Engineering Conference (UPEC) Pub Date : 2015-12-03 DOI: 10.1109/UPEC.2015.7339949

T. Jahangiri, C. Bak, F. D. da Silva, Brian Endahl

{"title":"Determination of minimum air clearances for a 420kV novel unibody composite cross-arm","authors":"T. Jahangiri, C. Bak, F. D. da Silva, Brian Endahl","doi":"10.1109/UPEC.2015.7339949","DOIUrl":"https://doi.org/10.1109/UPEC.2015.7339949","url":null,"abstract":"One of the most important requirements of any overhead line tower is determining the air clearances between live parts and earthed parts such as phase conductor and tower structure. In contrast to traditional steel lattice towers, the recently introduced fully composite pylon is completely made of non-conductive materials and the air clearances along the unibody cross-arm of the pylon depend on corresponding insulation lengths. The first step in electrical design of fully composite pylon is dimensioning the air clearances which, are required to specify the mechanical and material designs. This paper presents the insulation coordination studies to determine minimum required air clearances on the unibody cross-arm. The procedure and relevant equations to calculate minimum air clearances to avoid flashover between phases' conductors as well as top phase conductor and shield wire are based on the theoretical formulae reported in EN 50341-1. Considering differences in gap types, the calculated values of air clearances are compared with the recommended values by CIGRÉ TB 72, EN 50341-1 and IEC 60071-1, 2 and as a result one empirical value and one calculated value are determined as phase-to-earth and phase-to-phase air clearances, respectively. Subsequently, internal clearances at the tower and within the span are specified according to the three load cases (maximum conductor temperature, wind and ice) given in EN 50341-3, NNAs - DK.","PeriodicalId":446482,"journal":{"name":"2015 50th International Universities Power Engineering Conference (UPEC)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123687572","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: 10

Demand Side Management of public clean water supply 需求方管理公共清洁食水供应

2015 50th International Universities Power Engineering Conference (UPEC) Pub Date : 2015-12-03 DOI: 10.1109/UPEC.2015.7339923

R. Kernan, X. Liu, S. McLoone, B. Fox

引用次数: 2

Transformer tap-changer algorithm for meshed power networks 网状电网变压器分接开关算法

2015 50th International Universities Power Engineering Conference (UPEC) Pub Date : 2015-12-03 DOI: 10.1109/UPEC.2015.7339914

Franz M. Hanser, M. Mueller

引用次数: 0

Investigation of short-circuit fault effects on non-oriented steel at different range of magnetisations 不同磁化强度下无取向钢短路故障效应的研究

2015 50th International Universities Power Engineering Conference (UPEC) Pub Date : 2015-12-03 DOI: 10.1109/UPEC.2015.7339881

Asheraf Eldieb, F. Anayi, A. Fahmy

引用次数: 0