KEPCO Journal on electric power and energy最新文献_第5页

Experimental Study for Gate Trap and Generation Current using DCIV Method DCIV法栅极陷阱及产生电流的实验研究

KEPCO Journal on electric power and energy Pub Date : 2016-06-30 DOI: 10.18770/KEPCO.2016.02.02.223

Young Kwon Kim, D. B. Lee, Won Hyeok Choi, Taesik Park, Myoung Jin Lee

引用次数: 0

Study on Emerging Technologies in Electric Power Industry 电力工业新兴技术研究

KEPCO Journal on electric power and energy Pub Date : 2016-06-30 DOI: 10.18770/KEPCO.2016.02.02.317

Sooman Park

{"title":"Study on Emerging Technologies in Electric Power Industry","authors":"Sooman Park","doi":"10.18770/KEPCO.2016.02.02.317","DOIUrl":"https://doi.org/10.18770/KEPCO.2016.02.02.317","url":null,"abstract":"In recent years, the U.S, Japan, Europe and other developed countries are strategically developing technologies in order to prepare for paradigm shift affecting the electric power industry in a preemptive way. In particular, a chance for new business models and innovation in the electric power industry would rapidly increase with convergence of various technologies including Information and communication technologies. This study gathered up the theories and methodologies, and sorted out emerging technologies for the electric power industry with those theories. In order to find the emerging technologies, first, we identified the possible key issues of the electric power industry in the future using four mining techniques such as STEEP. Second, we drew agenda related with each key issue. Third, we organized candidates of the emerging technologies for solving the agenda and set the priority after evaluating the possibility of technical innovation and business. Finally, we selected the top fourteen of emerging technologies and assessed their feasibility. This study has a methodological significance because the emerging technologies were developed with a market-oriented approach rather than technical-push one that has been primarily used in another studies. The results of this study are able to be used in establishment of technology policy and R&D planning in the electric power industry.","PeriodicalId":445819,"journal":{"name":"KEPCO Journal on electric power and energy","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121466731","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: 0

Laminar Burning Velocities of Atmospheric Coal Air Mixtures 大气煤-空气混合物的层流燃烧速度

KEPCO Journal on electric power and energy Pub Date : 2016-03-30 DOI: 10.18770/KEPCO.2016.02.01.089

H. Park, Y. Park

{"title":"Laminar Burning Velocities of Atmospheric Coal Air Mixtures","authors":"H. Park, Y. Park","doi":"10.18770/KEPCO.2016.02.01.089","DOIUrl":"https://doi.org/10.18770/KEPCO.2016.02.01.089","url":null,"abstract":"Abstract The mechanism for laminar dust flame propagation can only be elucidated from a comprehensive mathematical model which incorporates conduction and radiation, as well as the chemical kinetics of particle devolatilization and gas phase and char rea ction. The mathematical model for a flat, laminar, premixed coal-air flame is applied to the atmospheric coal-air mixtures studied by Smoot and co-workers, and comparisons are made with their measurements and predictions. Here the principal parameter for comparison is the laminar burning velocity. The studies of Smoot and co-workers are first reviewed and compared with those predicted by the present model. The effects of inlet temperature and devolatilization rate constants on the burning velocities are studied with the present model, and compared with their measurements and predictions. Their m easured burning velocities are approximately predicted with the pr esent model at relatively high coal concentrations, with a somewhat increased inlet temperature. From the comparisons, their model might over-estimate particle temperature and rates of devolatilization. This would enable coal-air mixtures to be burned without any form of preheat and would tend to increase their computed values of burning velocity.","PeriodicalId":445819,"journal":{"name":"KEPCO Journal on electric power and energy","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126529363","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

Study on Market Prospects, Financing Challenges and Alternative Solutions in New Nuclear Power Projects 新核电项目的市场前景、融资挑战及替代方案研究

KEPCO Journal on electric power and energy Pub Date : 2016-03-30 DOI: 10.18770/KEPCO.2016.02.01.133

Janghun Lee

引用次数: 0

A Study on Optimal Configuration Method of Hybrid ESS using Lead-acid and Lithium-ion Batteries for Supply of Variation Loads 多变负荷下铅酸锂电池混合ESS优化配置方法研究

KEPCO Journal on electric power and energy Pub Date : 2016-03-30 DOI: 10.18770/KEPCO.2016.02.01.049

Dea-seok Rho, Seong-sik Choi, Hu-Dong Lee, B. Chang, Su-yeol Kim

{"title":"A Study on Optimal Configuration Method of Hybrid ESS using Lead-acid and Lithium-ion Batteries for Supply of Variation Loads","authors":"Dea-seok Rho, Seong-sik Choi, Hu-Dong Lee, B. Chang, Su-yeol Kim","doi":"10.18770/KEPCO.2016.02.01.049","DOIUrl":"https://doi.org/10.18770/KEPCO.2016.02.01.049","url":null,"abstract":"The large scaled lead-acid battery is widely used for efficient operation of the photovoltaic system in many islands. However, lithium-ion battery is now being introduced to mitigate the fluctuation of wind power and to replace lead-acid battery. Therefore, hybrid ESS (Energy Storage system) that combines lithium-ion battery with lead-acid battery is being required because lithium-ion battery is costly in present stage. Under this circumstance, this paper presents the optimal algorithm to create composition rate of hybrid ESS by considering fixed and variable costs in order to maximize advantage of each battery. With minimization of total cost including fixed and variable costs, the optimal composition rate can be calculated based on the various scenarios such as load variation, life cycle and cost trend. From simulation results, it is confirmed that the proposed algorithms are an effective tool to produce a optimal composition rate. 현재 대부분의 도서지역에서는 태양광발전을 효율적으로 운용하기 위하여 대용량 연축전지가 많이 사용되고 있 지만, 풍력발전의 도입, 축전지 교체로 인하여 리튬이온전지의 도입이 증가하고 있다. 따라서 본 논문에서는 기존에 많이 보급되어 사용되고 있는 연축전지와 리튬이온전지의 장점을 최대한 활용하기 위하여, 연축전지와 리튬이온전지 용 하이브리드 ESS의 최적 운용평가를 할 수 있는 알고리즘을 제시하였다. 상기의 알고리즘을 이용하여 시뮬레이션 을 수행한 결과, 각 전지의 도입비용과 운용비용이 최소화 되는 운용조건에서 최적구성비를 산출하였다. 이에 따라 본 논문에서 제안한 하이브리드 ESS의 최적구성 알고리즘에 대한 유용성을 확인하였다.","PeriodicalId":445819,"journal":{"name":"KEPCO Journal on electric power and energy","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115788494","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: 0

Development Status of MV Cable with Eco-friendly and High Heat Resistance 环保型高耐热中压电缆的发展现状

KEPCO Journal on electric power and energy Pub Date : 2016-03-30 DOI: 10.18770/KEPCO.2016.02.01.055

Yeon-ha Jung, Byung-sung Lee, I. Seo, J. Kwon, K. Sohn, Hyung-jun Kim

引用次数: 2

Study on Application of Reinforcement Device to Provide Greater Dynamic Stability for Power Transmission Towers and its Effect 提高输电塔动力稳定性的加固装置应用及效果研究

KEPCO Journal on electric power and energy Pub Date : 2016-03-30 DOI: 10.18770/KEPCO.2016.02.01.033

Kyeong-hyeon Yang, Choon-hee Bae, Nam-geun Jeong, Doo-young Kim, Sungmin Kim, Y. Jang

引用次数: 0

A Study for the Message Exchange of the EVSE Communication Controller using XML Schema Transformation 基于XML模式转换的EVSE通信控制器消息交换研究

KEPCO Journal on electric power and energy Pub Date : 2016-03-30 DOI: 10.18770/KEPCO.2016.02.01.071

Koaunghi Un, Hyuk-Soo Jang, Myongsoo Kim, Hwimin Kim

引用次数: 0

A Study on Partial Discharge Diagnostic System for Power Cable using RLCR 基于RLCR的电力电缆局部放电诊断系统研究

KEPCO Journal on electric power and energy Pub Date : 2016-03-30 DOI: 10.18770/KEPCO.2016.02.01.043

Kee-Young Park, Hyung-kee Choi, Chul-Hee Lee, Soo-mi Hong

引用次数: 1

Techno-Economic Study on Non-Capture CO 2 Utilization Technology 非捕集型co2利用技术的技术经济研究

KEPCO Journal on electric power and energy Pub Date : 2016-03-30 DOI: 10.18770/KEPCO.2016.02.01.109

J. H. Lee, Dong Woog Lee, No-Sang Kwak, Jung-Hyun Lee, J. Shim

{"title":"Techno-Economic Study on Non-Capture CO 2 Utilization Technology","authors":"J. H. Lee, Dong Woog Lee, No-Sang Kwak, Jung-Hyun Lee, J. Shim","doi":"10.18770/KEPCO.2016.02.01.109","DOIUrl":"https://doi.org/10.18770/KEPCO.2016.02.01.109","url":null,"abstract":"Techno-economic evaluation of Non-Capture CO2 Utilization (NCCU) technology for the production of high-value-added products using greenhouse gas (CO2) was performed. The general scheme of NCCU process is composed of CO2 carbonation and brine electrolysis process. Through a carbonation reaction with sodium hydroxide that is generated from brine electrolysis and CO2 of the flue gas, it is possible to get high-value-added products such as sodium bicarbonate, sodium hydroxide, hydrogen & chloride and also to reduce the CO2 emission simultaneously. For the techno-economic study on NCCU technology, continuous operation of bench-scale facility which could treat 2 kgCO2/day was performed. and based on the key performance data evaluated, the economic evaluation analysis targeted on the commercial chemical plant, which could treat 6 tons CO2 per day, was performed using the net present value (NPV) metrics. The results showed that the net profit obtained during the whole plant operation was about 7,890 mKRW (million Korean Won) on NPV metrics and annual CO2 reduction was estimated as about 2,000 tCO2. Also it was found that the energy consumption of brine electrolysis is one of the key factors which affect the plant operation cost (ex. electricity consumption) and the net profit of the plant. Based on these results, it could be deduced that NCCU technology of this study could be one of the cost-effective CO2 utilization technology options.","PeriodicalId":445819,"journal":{"name":"KEPCO Journal on electric power and energy","volume":"96 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122190230","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