International Journal of Electrical Energy最新文献_第7页

The Application of Hardware in the Loop for Single Phase Converters Based on DSP Controller at Solar Energy Systems 基于DSP控制器的单相变换器硬件在环在太阳能系统中的应用

International Journal of Electrical Energy Pub Date : 2016-01-01 DOI: 10.18178/IJOEE.4.2.127-132

A. Karaarslan

{"title":"The Application of Hardware in the Loop for Single Phase Converters Based on DSP Controller at Solar Energy Systems","authors":"A. Karaarslan","doi":"10.18178/IJOEE.4.2.127-132","DOIUrl":"https://doi.org/10.18178/IJOEE.4.2.127-132","url":null,"abstract":"The purpose of this paper is to build an effective Hardware-in-the-Loop (HIL) simulation platform for developing and testing DSP-controlled power converters. The HIL is a form of real-time simulation and differs from conventional simulations. The real-time requirements for such simulations depend on the time-scale of the process and the simulated components involved. A high-performance real-time simulation environment is necessary to obtain high precision results when time steps are too small. In this study, the detailed implementation of a very-low-cost real-time HIL simulation using open-source operating system and a relatively advanced hardware platform using averaged switch approach for the embedded controllers is presented. The proposed system consists of PC-based open-source Real Time Operation System (RTOS) and DSP. The sample rate of this system is reduced to 15 μs range based on RTOS. As an example, the HIL testing approach is applied for the controller design of AC-DC Power Factor Correction (PFC) converter. The consistency of the experimental results with the theoretical results proves the applicability of the proposed testing approach. This approach will be useful for power electronics application of solar systems. ","PeriodicalId":13951,"journal":{"name":"International Journal of Electrical Energy","volume":"1 1","pages":"127-132"},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82874010","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

Prediction of Hourly Generated Electric Power Using Artificial Neural Network for Combined Cycle Power Plant 联合循环电厂小时发电量的人工神经网络预测

International Journal of Electrical Energy Pub Date : 2016-01-01 DOI: 10.18178/IJOEE.4.2.91-95

B. Akdemir

{"title":"Prediction of Hourly Generated Electric Power Using Artificial Neural Network for Combined Cycle Power Plant","authors":"B. Akdemir","doi":"10.18178/IJOEE.4.2.91-95","DOIUrl":"https://doi.org/10.18178/IJOEE.4.2.91-95","url":null,"abstract":"Energy is one the important subjects in the world because of its cost and achievable. In order to reduce energy costs, some kinds of plants may have founded and are managed related to demands and environmental conditions. Artificial neural network is one of the famous artificial intelligent in literature to solve nonlinear problems from medical to constructions. Artificial neural network uses nodes to weights to achieve the output. In this study, obtainable power per hour from combined gas and steam turbine power plant tries to be predicted. Data include 9685 features and 4 variables. Artificial neural network results have been evaluated with mean square error and two fold cross validation. Mean square error and two-fold cross validation are statistical evaluation methods to evaluate the results. Dataset divided 2 sections to test and train. Two datasets are trained and tested using two fold cross validation and generated R value to evaluate the fitting performance. R is famous comparing method to figure out the fitting ability. The obtained mean square error after two fold cross validation and R value are 3.176 and 0.96675, respectively. ","PeriodicalId":13951,"journal":{"name":"International Journal of Electrical Energy","volume":"86 1","pages":"91-95"},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82406349","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: 11

An Analytical Approach to Find Optimal Location and Sizing of DGs for Power Loss Reduction and Voltage Stability Improvement 降低电压损耗和提高电压稳定性的DGs最佳位置和尺寸的分析方法

International Journal of Electrical Energy Pub Date : 2016-01-01 DOI: 10.18178/IJOEE.4.4.189-193

Jyotsna Singh, Saurabh Ratra, Rajive Tiwari, K. R. Niazi

引用次数: 0

Research on Aeolian Vibration of a Conductor Based on Finite Particle Method 基于有限粒子法的导体风成振动研究

International Journal of Electrical Energy Pub Date : 2016-01-01 DOI: 10.18178/IJOEE.4.3.143-151

Wenping Xie, Zuyan Zhang, N. Xu, Li Li, Z. Wang, Xiaoyu Luo

{"title":"Research on Aeolian Vibration of a Conductor Based on Finite Particle Method","authors":"Wenping Xie, Zuyan Zhang, N. Xu, Li Li, Z. Wang, Xiaoyu Luo","doi":"10.18178/IJOEE.4.3.143-151","DOIUrl":"https://doi.org/10.18178/IJOEE.4.3.143-151","url":null,"abstract":"Destruction of transmission lines due to Aeolian vibration is more and more serious recently with wide applications of the Ultra High Voltage Technology, so it is necessary to study the response of Aeolian vibration of conductor. This paper uses the finite particle method which is different from the energy balance method to research the transmission line’s response under Aeolian vibration. Base on vector mechanics of structures, the finite particle method divides a structure into particles which are linked by elements. The movement of the particles is followed by the Newton’s second law. By establishing the relationship between the Stockbridge-type damper’s force and particle’s displacement, the responses of Aeolian vibrations of conductors with different type dampers and that with different locations of dampers are calculated. Because the finite particle method can consider the damper’s dynamic characteristics, the mass and geometric nonlinearity of a conductor, this method can produce a more accurate analysis result than the energy balance method. At last, the three-dimensional response of Aeolian vibration of conductor is calculated which shows the damping will weaken the lateral movement of a conductor. ","PeriodicalId":13951,"journal":{"name":"International Journal of Electrical Energy","volume":"11 11 1","pages":"143-151"},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78803319","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

Stochastic Volt/Var Planning and Operation for Microgrids with Renewables 可再生能源微电网的随机伏安规划与运行

International Journal of Electrical Energy Pub Date : 2016-01-01 DOI: 10.18178/IJOEE.4.3.159-164

N. K. Meena, A. Swarnkar, N. Gupta, K. R. Niazi

引用次数: 15

Research on Smart Grid Users’ Power Consumption Behavior Classification Based on Improved k-Means Algorithm 基于改进k-Means算法的智能电网用户用电行为分类研究

International Journal of Electrical Energy Pub Date : 2016-01-01 DOI: 10.18178/IJOEE.4.1.6-10

Yi Sun, Mengyang Jia, Jun Lu, Baogang Zhang, Wan-qing Yang

引用次数: 0

Feasibility Analysis of 100kW Grid Connected PV System: A Case Study at Karachi 100kW并网光伏系统可行性分析——以卡拉奇为例

International Journal of Electrical Energy Pub Date : 2016-01-01 DOI: 10.18178/IJOEE.4.3.165-173

U. Zahid, M. Haq, Sidra Zahid, Abdullah Khan, Muhammad Mansoor, Ahmed Khan

{"title":"Feasibility Analysis of 100kW Grid Connected PV System: A Case Study at Karachi","authors":"U. Zahid, M. Haq, Sidra Zahid, Abdullah Khan, Muhammad Mansoor, Ahmed Khan","doi":"10.18178/IJOEE.4.3.165-173","DOIUrl":"https://doi.org/10.18178/IJOEE.4.3.165-173","url":null,"abstract":"The city of Karachi, with its ever growing population and an immense solar potential through rooftop solar photovoltaic (PV) system in urban areas is proving to provide a propitious investment opportunity for both domestic and industrial sectors. This is leading towards trends of moderate to small scale electricity production through solar power in many areas of city, with applications ranging from industrial processes to meeting the typical household electrical requirements. In conformance with this shifting tendency for attaining sustainable power generation, this paper aims to present the theoretical and practical aspects behind the working of a 100 kW roof-mounted PV system at Sindh Industrial Trading Estate (SITE) Area, Karachi. The analysis follows a systematic procedure, highlighting the key aspects of the working components and overall system design. It also includes the detailed study of output production and its comparative analysis with the local solar potential which was obtained through PVsyst software. Lastly, system contribution towards Greenhouse Gas (GHG) reduction is also discussed. ","PeriodicalId":13951,"journal":{"name":"International Journal of Electrical Energy","volume":"61 1","pages":"165-173"},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90719246","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

Improving Flexible Feed-in Tariff Modeling for Renewable Energy Pricing 改进可再生能源灵活上网电价模型

International Journal of Electrical Energy Pub Date : 2016-01-01 DOI: 10.18178/IJOEE.4.2.122-126

N. Çetinkaya

引用次数: 0

A Reliable Strategy in Order to Islanding Detection Based on Combined Active and Passive Techniques 一种基于主被动结合技术的可靠孤岛探测策略

International Journal of Electrical Energy Pub Date : 2016-01-01 DOI: 10.18178/IJOEE.4.2.84-90

M. Ebtehaj, B. Sobhani, Behnam Sobhani

{"title":"A Reliable Strategy in Order to Islanding Detection Based on Combined Active and Passive Techniques","authors":"M. Ebtehaj, B. Sobhani, Behnam Sobhani","doi":"10.18178/IJOEE.4.2.84-90","DOIUrl":"https://doi.org/10.18178/IJOEE.4.2.84-90","url":null,"abstract":"Abstract—One of the serious concern of grid connected distributed resources is islanding problem. This condition should be prevented due to several reasons concerning such as personnel and equipment safety. This paper investigated a mixed passive and active islanding detection method using energy of rate of change of active power (EROCOAP) and disturbance applying through q-axis of dq-current controller. Reduction of Non detection Zone to as close as possible and keeping the output power quality unchanged in normal condition are main emphasis of the proposed scheme. In addition, this technique can also overcome the problem of setting the detection thresholds inherent in the existing techniques. In this study, we propose to use a hybrid active and passive method for islanding detection. At first, the energy of ROCOAP is calculated for settling time of case study system. If this value becomes higher than threshold value, disturbance is applied to q-axis of current controller. By frequency measurement islanding condition is detected. The simulations results, carried out by MATLAB/Simulink, shows that the proposed method has a small non detection zone. Also, this method is capable of detecting islanding accurately within the minimum standard time.","PeriodicalId":13951,"journal":{"name":"International Journal of Electrical Energy","volume":"33 1","pages":"84-90"},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72675850","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

Fault Location in Self-Healing Distribution Networks 自愈配电网络故障定位

International Journal of Electrical Energy Pub Date : 2016-01-01 DOI: 10.18178/IJOEE.4.4.217-220

Q. Yin, Sichuan China State Grid Deyang Power Supply Co. Ltd., Rui Ding

引用次数: 0