{"title":"Control of bi-directional DC-DC converter using batteries for wind power generation","authors":"E. Abdelkarim, A. A. Ibrahim","doi":"10.1109/ICSGCE.2015.7454273","DOIUrl":"https://doi.org/10.1109/ICSGCE.2015.7454273","url":null,"abstract":"The wind turbines and storage batteries are considered one of the main components of distribution systems. The paper describes in details the design and control of one of the bi-directional DC-DC converter topologies. It is bi-directional Dual Active Bridge. A control strategy, using PI controllers, for the storage batteries is developed based on constant wind turbine speed. With normal wind power generation, the batteries are set in a charging mode. When wind power generation fluctuates due to large wind speed variation, the developed control strategy allows batteries to mitigate these power fluctuations and avoids severe voltage transients on congested power systems. An actual wind speed data are used to simulate the impact of wind penetration during a 24-hour period. The simulations are carried out for wind without and with power fluctuation.","PeriodicalId":134414,"journal":{"name":"2015 International Conference on Smart Grid and Clean Energy Technologies (ICSGCE)","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129755807","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}
K. Konara, M. Kolhe, W. G. C. A. Sankalpa, A. R. Wimucthi, D. D. M. Ranasinghe
{"title":"Integration of DC power source in micro-grid using VSI with PLL technique","authors":"K. Konara, M. Kolhe, W. G. C. A. Sankalpa, A. R. Wimucthi, D. D. M. Ranasinghe","doi":"10.1109/ICSGCE.2015.7454268","DOIUrl":"https://doi.org/10.1109/ICSGCE.2015.7454268","url":null,"abstract":"The looming energy crisis is becoming the greatest challenge to the world today. As a consequence of this there is an increasing attention for alternative renewable energy resources. In future, renewable energy sources will be integrated with energy storage and it will require a proper converter for integrating with the grid. In order to achieve this, various power electronics topologies have to be incorporated between the grid and the renewable source(s). This paper presents the simulation and experimental implementation of DC power source integration in micro-grid using single phase `Voltage Source Inverter' (VSI) with `Phase Locked Loop' (PLL) topology. Firstly the appropriateness of the PLL technique for the micro-grid synchronization is analyzed under the normal condition, harmonic condition and the non-harmonic (e.g. impulse) condition of a power system using Matlab Simulink®. Then the design and experimental implementation steps of the grid-tied VSI are discussed in details. In this work, a VSI with PLL technique is presented with simulation and experimental results for integrating with 230V/50Hz low voltage grid.","PeriodicalId":134414,"journal":{"name":"2015 International Conference on Smart Grid and Clean Energy Technologies (ICSGCE)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121672146","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}
Mahmoud Saleh, Ammar Althaibani, Yusef Esa, Yassine Mhandi, A. Mohamed
{"title":"Impact of clustering microgrids on their stability and resilience during blackouts","authors":"Mahmoud Saleh, Ammar Althaibani, Yusef Esa, Yassine Mhandi, A. Mohamed","doi":"10.1109/ICSGCE.2015.7454295","DOIUrl":"https://doi.org/10.1109/ICSGCE.2015.7454295","url":null,"abstract":"In this paper, the impact of clustering multiple microgrids during blackouts, on their stability and supply availability, will be investigated. Microgrids have the capability of satisfying their emergency loads during blackouts. However, distributed energy resources (DERs)-dominated microgrids are affected by the uncertainty of their input energy supply, e.g. impact of solar irradiance on photovoltaic (PV) output. Moreover, an individual islanded microgrid is prone to instability issues due to large sudden load/generation changes. In order to increase the supply security, and enhance system stability, we propose to use the existing distribution grid infrastructure, if applicable, during blackouts to form microgrid clusters. The paper discusses the required control hierarchy required to manage the microgrid clusters, and communicate with the Distribution Network Operator (DNO). A case study based on the 13-bus standard distribution feeder, and two microgrid models, is presented. Results show that microgrids clustering helps improve their performance and that the microgrid generator inertia has a direct impact on the stability of the microgrid cluster.","PeriodicalId":134414,"journal":{"name":"2015 International Conference on Smart Grid and Clean Energy Technologies (ICSGCE)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126400589","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}
{"title":"Real-time anomaly-based distributed intrusion detection systems for advanced Metering Infrastructure utilizing stream data mining","authors":"Fadwa Abdul Aziz Alseiari, Z. Aung","doi":"10.1109/ICSGCE.2015.7454287","DOIUrl":"https://doi.org/10.1109/ICSGCE.2015.7454287","url":null,"abstract":"The advanced Metering Infrastructure (AMI) is one of the core components of smart grids' architecture. As AMI components are connected through mesh networks in a distributed mechanism, new vulnerabilities will be exploited by grid's attackers who intentionally interfere with network's communication system and steal customer data. As a result, identifying distributed security solutions to maintain the confidentiality, integrity, and availability of AMI devices' traffic is an essential requirement that needs to be taken into account. This paper proposes a real-time distributed intrusion detection system (DIDS) for the AMI infrastructure that utilizes stream data mining techniques and a multi-layer implementation approach. Using unsupervised online clustering techniques, the anomaly-based DIDS monitors the data flow in the AMI and distinguish if there are anomalous traffics. By comparing between online and offline clustering techniques, the experimental results showed that online clustering “Mini-Batch K-means” were successfully able to suit the architecture requirements by giving high detection rate and low false positive rates.","PeriodicalId":134414,"journal":{"name":"2015 International Conference on Smart Grid and Clean Energy Technologies (ICSGCE)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128079661","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}
{"title":"Research on storage system capacity of distributed wind power based on prediction error compensation","authors":"Wenliang Yin, Min Zhao, Chao Wang, Luan Chen","doi":"10.1109/ICSGCE.2015.7454272","DOIUrl":"https://doi.org/10.1109/ICSGCE.2015.7454272","url":null,"abstract":"According to the theory that wind power prediction error approximatively follows a normal probability distribution, this article introduces a concept of error tolerance rate of wind power prediction, and comes to the relationship between the capacity of energy storage system (ESS) and error tolerance rate. Furtherly, the relationship between the size of the storage capacity and the economic costs, as well as the relationship between the size of storage system capacity and some other factors that may affect the security and stability of grid, are explored. The results can guide to configure an appropriate capacity of the energy storage system under a reasonable error tolerance rate, so to ensure the safety and stability of grid and the economy can be simultaneously optimized to some extent.","PeriodicalId":134414,"journal":{"name":"2015 International Conference on Smart Grid and Clean Energy Technologies (ICSGCE)","volume":"86 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127655762","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}
F. M. Schaf, C. Franchi, H. Pinheiro, A. J. Ramos, Juliano Grigulo
{"title":"Small wind turbine communication system implementation","authors":"F. M. Schaf, C. Franchi, H. Pinheiro, A. J. Ramos, Juliano Grigulo","doi":"10.1109/ICSGCE.2015.7454289","DOIUrl":"https://doi.org/10.1109/ICSGCE.2015.7454289","url":null,"abstract":"This paper presents the research and development of a communication system that allows the information exchange between the nacelle and the tower base reducing cabling costs and complexity. The proposed infrastructure allows data acquisition and system supervision of distinct wind turbines/generators and its electrical conversion systems according to the IEC 61400-25 standard. The system implementation uses an Ethernet network allowing Digital Signal Controllers and an Embedded PC to share information via a TCP/IP based protocol. The Embedded PC also serves as outstation to supply process data to a WPP Supervisory and Data Acquisition/Energy Management System (SCADA/EMS). The whole implementation was tested in a small wind turbine prototype. Results associated with this prototype are described. The prototype will be used as basis to disseminate standardized technology to local manufacturers.","PeriodicalId":134414,"journal":{"name":"2015 International Conference on Smart Grid and Clean Energy Technologies (ICSGCE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131412223","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}
Carsten Wolff, Jörn Strumberg, Mathias Knirr, Christian Fortenbacher, W. Schier, Jens Tekampe, Immanuel Forst, C. Hensen
{"title":"Online measurement in biogas fermenters for automated digestion control","authors":"Carsten Wolff, Jörn Strumberg, Mathias Knirr, Christian Fortenbacher, W. Schier, Jens Tekampe, Immanuel Forst, C. Hensen","doi":"10.1109/ICSGCE.2015.7454269","DOIUrl":"https://doi.org/10.1109/ICSGCE.2015.7454269","url":null,"abstract":"Electricity production from biogas power plants is an important part of a renewable energy system. The main advantage compared to other renewable energy sources is capability to provide base load to the electricity grid. This is possible since biogas production is quite predictable and can be influenced to some degree by feeding the biogas fermenters accordingly. Nevertheless, there are still some open issues for biogas usage. The fermentation process and hence the gas production is difficult to control since the lack of understanding of the fermentation process and the missing measurement equipment make it impossible to set up a closed control loop. Apart from that, biogas is used in block heat and power plants. This is only efficient if the heat is used, meaning there are different demand profiles for heat and electricity. The goal of the ongoing research is to make the biogas power plant and hence the fermentation process controllable with a fast reaction to changes and high flexibility on the input and the output side. This would lead to a smart biogas power plant with the capability to provide peak load to the grid. Furthermore, the smart biogas power plant allows optimization and efficiency gains. One core issue for this goal is the provision of online measurement tools directly in the fermenter (in situ or in process). We present recent research on the selection of measurement parameters, the usage of digestion process models in controller design and the development of online measurement equipment for biogas fermenters.","PeriodicalId":134414,"journal":{"name":"2015 International Conference on Smart Grid and Clean Energy Technologies (ICSGCE)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115414339","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}
{"title":"Reviewing the load shift potential of thermally Activated Building Systems applying Model Predictive Control","authors":"J. Hoell, E. Bollin","doi":"10.1109/ICSGCE.2015.7454262","DOIUrl":"https://doi.org/10.1109/ICSGCE.2015.7454262","url":null,"abstract":"The uncertain and time-variant nature of renewable energy results in the need to deal with peaks in the production of energy. One approach is to achieve a load shift and thereby help balancing the grid by using thermally Activated Building Systems (TABS). Control systems currently in place do not exploit the full potential of TABS. This paper reviews how Model Predictive Control can possibly reduce the fluctuations of the demand and supply of (renewable) energy as it enables the TABS to react to the dynamics of weather and its impact on the grid at any time.","PeriodicalId":134414,"journal":{"name":"2015 International Conference on Smart Grid and Clean Energy Technologies (ICSGCE)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123181694","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}
{"title":"A novel method of detecting insulation faults in power transformer","authors":"Chunyang Zhu, Hongjie Li, Yan Liu","doi":"10.1109/ICSGCE.2015.7454280","DOIUrl":"https://doi.org/10.1109/ICSGCE.2015.7454280","url":null,"abstract":"This paper proposes a novel method of detecting insulation faults in power transformer based on damped oscillating voltage waves (DOVW). With reference to IEC60270, the insulation faults of a single-phase transformer are identified by the partial discharge (PD) signals. In this research, the PD signals were attained under two energizing methods individually. A comparison of PD behavior corresponding to the conventional AC 50 Hz energizing method and DOVW energizing method has been presented. Based on laboratory tests, detecting PD in power transformer by the DOVW is judged to be effective. This research enabled us to identify and prevent power transformer insulation damage in time.","PeriodicalId":134414,"journal":{"name":"2015 International Conference on Smart Grid and Clean Energy Technologies (ICSGCE)","volume":"146 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116447860","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}
{"title":"Investigation of on load tap changer control in smart distribution network","authors":"K. N. Bangash, M. Farrag, A. Osman","doi":"10.1109/ICSGCE.2015.7454299","DOIUrl":"https://doi.org/10.1109/ICSGCE.2015.7454299","url":null,"abstract":"Penetration level, location and intermittent behaviour of the Distributed Generations (DGs) integrated with the distribution system will have great impacts on the system performance and stability. One of the subjects is high voltage rise at tail end of radial feeder. Electric utilities use On Load Tap Changer (OLTC) attached to Medium Voltage (MV) transformer to regulate voltage levels. Traditionally, in passive network tap changers receive control signals from single bus and change the tap positions to maintain voltages at pre-defined reference voltage. In the active smart distribution network, and with the advantages of smart meters, OLTC can pick up control signals from different voltage buses and change the tap positions of the transformers accordingly. In this research, typical UK Low Voltage (LV) network with DGs is modeled on Matlab/Simulink and OLTC is installed at both MV and LV transformers (T/F). Logical controller is designed to select the most appropriate control signals from the system buses to optimize the operation of both MV and LV transformer collaboratively. Recommendation of integrating Energy Storage Systems at distribution network is discussed in this research in order to level up the load profile and stabilize the system voltages.","PeriodicalId":134414,"journal":{"name":"2015 International Conference on Smart Grid and Clean Energy Technologies (ICSGCE)","volume":"76 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124413610","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}