Pub Date : 2010-11-18DOI: 10.1109/ISGTEUROPE.2010.5638917
N. C. Woolley, J. Milanović
Unbalance is a damaging and costly phenomenon for both network operators and end users. Network operators are increasingly looking at ways in which they can intelligently monitor their exposure to unbalance and its related problems. This paper presents initial results obtained with a new methodology for estimation of the voltage unbalance factor at any busbar in a distribution network. The proposed methodology utilizes distribution system state estimation to estimate the statistical properties of voltage unbalance factor. Both real and pseudo measurements are used to estimate the voltage unbalance factor and the corresponding error in the estimate. The methodology is validated, at this stage, on a simple generic unevenly loaded power system network using real data from UK distribution networks. It is shown to yield promising results across a series of unbalance simulations.
{"title":"Estimating the voltage unbalance factor using distribution system state estimation","authors":"N. C. Woolley, J. Milanović","doi":"10.1109/ISGTEUROPE.2010.5638917","DOIUrl":"https://doi.org/10.1109/ISGTEUROPE.2010.5638917","url":null,"abstract":"Unbalance is a damaging and costly phenomenon for both network operators and end users. Network operators are increasingly looking at ways in which they can intelligently monitor their exposure to unbalance and its related problems. This paper presents initial results obtained with a new methodology for estimation of the voltage unbalance factor at any busbar in a distribution network. The proposed methodology utilizes distribution system state estimation to estimate the statistical properties of voltage unbalance factor. Both real and pseudo measurements are used to estimate the voltage unbalance factor and the corresponding error in the estimate. The methodology is validated, at this stage, on a simple generic unevenly loaded power system network using real data from UK distribution networks. It is shown to yield promising results across a series of unbalance simulations.","PeriodicalId":267185,"journal":{"name":"2010 IEEE PES Innovative Smart Grid Technologies Conference Europe (ISGT Europe)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124986448","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}
Pub Date : 2010-11-18DOI: 10.1109/ISGTEUROPE.2010.5638904
J. D. Haan, J. Frunt, W. Kling
Future's penetration of more distributed generation will have an effect on the power system's stability and controllability. In general, wind power as a distributed generator does not have inertial response and does not supply control power. A third characteristic of wind power is that it is not conventionally controlled and its main resource is fluctuating. This paper describes a methodology to calculate wind power fluctuations in the frequency domain to compare it with load fluctuations for higher frequency power fluctuations. In relation, the approach of wind power smoothing is mentioned to mitigate the grid impact of power fluctuations. To smooth power, the concept of inertial wind power smoothing is briefly discussed for the low wind speed range of wind turbines, between the cut-in and rated wind speed. A smart grid could be equipped with a control system to control the power output of wind turbines and wind farms to mitigate the grid impact of wind power fluctuations on the frequency stability of a power system.
{"title":"Mitigation of wind power fluctuations in smart grids","authors":"J. D. Haan, J. Frunt, W. Kling","doi":"10.1109/ISGTEUROPE.2010.5638904","DOIUrl":"https://doi.org/10.1109/ISGTEUROPE.2010.5638904","url":null,"abstract":"Future's penetration of more distributed generation will have an effect on the power system's stability and controllability. In general, wind power as a distributed generator does not have inertial response and does not supply control power. A third characteristic of wind power is that it is not conventionally controlled and its main resource is fluctuating. This paper describes a methodology to calculate wind power fluctuations in the frequency domain to compare it with load fluctuations for higher frequency power fluctuations. In relation, the approach of wind power smoothing is mentioned to mitigate the grid impact of power fluctuations. To smooth power, the concept of inertial wind power smoothing is briefly discussed for the low wind speed range of wind turbines, between the cut-in and rated wind speed. A smart grid could be equipped with a control system to control the power output of wind turbines and wind farms to mitigate the grid impact of wind power fluctuations on the frequency stability of a power system.","PeriodicalId":267185,"journal":{"name":"2010 IEEE PES Innovative Smart Grid Technologies Conference Europe (ISGT Europe)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128355717","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}
Pub Date : 2010-11-18DOI: 10.1109/ISGTEUROPE.2010.5638955
M. Zamani, A. Fereidunian, H. Jamalabadi, F. Boroomand, P. Sepehri, H. Lesani, C. Lucas
While the smart grid dream is likely to be revisited, we are witnessing a convergence of Information Technology (IT) with power system engineering. This convergence should be managed tactfully, to obtain a consistent architecture for the smart grid. Due to the complex nature of the both IT and power systems, a higher degree of complexity emerges through the smart grid. Therefore, selection of the right IT infrastructure for the smart grid is a complicated decision making problem. However, many of these decisions are made based on personal expertise, ad hoc methods and heuristic rules. They not only are highly suspected of not being optimal, but also are prone to serious mistakes. This mandates a consistent decision making method for the selection of the IT infrastructure in the smart grid. In this paper, Wymorian Tricotyledon Theory of Systems Design (T3SD) and Fuzzy Data Envelopment Analysis (FDEA), as a variation of Data Envelopment Analysis (DEA) and being capable of handling uncertainty, are employed as a decision supporting tool, to encompass the real world selection and decision issues which is presented as T3SD Fuzzy DEA method.
虽然智能电网的梦想可能会被重新审视，但我们正在见证信息技术(IT)与电力系统工程的融合。必须巧妙地管理这种融合，以获得一致的智能电网体系结构。由于IT系统和电力系统的复杂性，智能电网的复杂性更高。因此，为智能电网选择合适的IT基础设施是一个复杂的决策问题。然而，这些决定中的许多都是基于个人专业知识、特别方法和启发式规则做出的。他们不仅被高度怀疑不是最优的，而且容易犯严重的错误。这要求采用一致的决策制定方法来选择智能电网中的IT基础设施。本文将Wymorian Tricotyledon Theory of Systems Design (T3SD)和模糊数据包络分析(FDEA)作为数据包络分析(DEA)的一种变体，具有处理不确定性的能力，作为一种决策支持工具，将现实世界的选择和决策问题纳入其中，称为T3SD模糊包络分析方法。
{"title":"Smart grid IT infrastructure selection: A T3SD Fuzzy DEA approach","authors":"M. Zamani, A. Fereidunian, H. Jamalabadi, F. Boroomand, P. Sepehri, H. Lesani, C. Lucas","doi":"10.1109/ISGTEUROPE.2010.5638955","DOIUrl":"https://doi.org/10.1109/ISGTEUROPE.2010.5638955","url":null,"abstract":"While the smart grid dream is likely to be revisited, we are witnessing a convergence of Information Technology (IT) with power system engineering. This convergence should be managed tactfully, to obtain a consistent architecture for the smart grid. Due to the complex nature of the both IT and power systems, a higher degree of complexity emerges through the smart grid. Therefore, selection of the right IT infrastructure for the smart grid is a complicated decision making problem. However, many of these decisions are made based on personal expertise, ad hoc methods and heuristic rules. They not only are highly suspected of not being optimal, but also are prone to serious mistakes. This mandates a consistent decision making method for the selection of the IT infrastructure in the smart grid. In this paper, Wymorian Tricotyledon Theory of Systems Design (T3SD) and Fuzzy Data Envelopment Analysis (FDEA), as a variation of Data Envelopment Analysis (DEA) and being capable of handling uncertainty, are employed as a decision supporting tool, to encompass the real world selection and decision issues which is presented as T3SD Fuzzy DEA method.","PeriodicalId":267185,"journal":{"name":"2010 IEEE PES Innovative Smart Grid Technologies Conference Europe (ISGT Europe)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127687669","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}
Pub Date : 2010-11-18DOI: 10.1109/ISGTEUROPE.2010.5638880
Rajesh Gupta, G. Gupta, Dharmendra Kastwar, A. Hussain, Hars Ranjan
This paper presents a modeling of photovoltaic (PV) module in PSCAD/EMTDC and design of maximum power point tracking (MPPT) using boost converter. The model can be used for simulation studies of grid interface applications using voltage source converter in the PSCAD. The validity of the PV model developed has been verified using the set of data collected experimentally. In order to extract maximum power from the PV module the boost converter can be controlled through the Hill Top algorithm. All the simulation study has been done in the PSCAD/EMTDC simulation software.
{"title":"Modeling and design of MPPT controller for a PV module using PSCAD/EMTDC","authors":"Rajesh Gupta, G. Gupta, Dharmendra Kastwar, A. Hussain, Hars Ranjan","doi":"10.1109/ISGTEUROPE.2010.5638880","DOIUrl":"https://doi.org/10.1109/ISGTEUROPE.2010.5638880","url":null,"abstract":"This paper presents a modeling of photovoltaic (PV) module in PSCAD/EMTDC and design of maximum power point tracking (MPPT) using boost converter. The model can be used for simulation studies of grid interface applications using voltage source converter in the PSCAD. The validity of the PV model developed has been verified using the set of data collected experimentally. In order to extract maximum power from the PV module the boost converter can be controlled through the Hill Top algorithm. All the simulation study has been done in the PSCAD/EMTDC simulation software.","PeriodicalId":267185,"journal":{"name":"2010 IEEE PES Innovative Smart Grid Technologies Conference Europe (ISGT Europe)","volume":" 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132041532","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}
Pub Date : 2010-11-18DOI: 10.1109/ISGTEUROPE.2010.5638944
K. Yunus, Gustavo Pinares, L. Tuan, L. B. Tjernberg
A typical power system voltage collapse scenarios is often ended with the undesirable operation of the Zone-3 distance relay of the transmission lines. This paper presents a protection scheme to avoid power system voltage collapse using a combined method of distance relay's Zone-3 blocking scheme and a sensitivity-based load shedding selection. The Zone-3 distance relay blocking is based on the proper differentiation between transmission line overloading and line faulted conditions, using a fast estimation of power flow based on Line Outage Distribution Factor (LODF) and Generation Shift Factor (GSF). The Zone-3 distance relay of the transmission line would be blocked if the power flow change over the line is determined to be due to an overload so that more time would be available for the system to take necessary control actions. One of the important control actions is the emergency load shedding. A method based on the calculated sensitivities GSF to identify the most effective load shedding positions and amounts is proposed. The proposed method has been implemented in the Advanced Real-Time Interactive Simulator for Training and Operation (ARISTO) software with the Nordic 32-bus test system. ARISTO offers the possibility to test the proposed scheme since it can be seen as the virtual power system with all live information. The analyses of power system voltage collapse scenarios with and without the proposed scheme implemented have shown the effectiveness of the scheme to prevent the voltage collapses.
{"title":"A combined zone-3 relay blocking and sensitivity-based load shedding for voltage collapse prevention","authors":"K. Yunus, Gustavo Pinares, L. Tuan, L. B. Tjernberg","doi":"10.1109/ISGTEUROPE.2010.5638944","DOIUrl":"https://doi.org/10.1109/ISGTEUROPE.2010.5638944","url":null,"abstract":"A typical power system voltage collapse scenarios is often ended with the undesirable operation of the Zone-3 distance relay of the transmission lines. This paper presents a protection scheme to avoid power system voltage collapse using a combined method of distance relay's Zone-3 blocking scheme and a sensitivity-based load shedding selection. The Zone-3 distance relay blocking is based on the proper differentiation between transmission line overloading and line faulted conditions, using a fast estimation of power flow based on Line Outage Distribution Factor (LODF) and Generation Shift Factor (GSF). The Zone-3 distance relay of the transmission line would be blocked if the power flow change over the line is determined to be due to an overload so that more time would be available for the system to take necessary control actions. One of the important control actions is the emergency load shedding. A method based on the calculated sensitivities GSF to identify the most effective load shedding positions and amounts is proposed. The proposed method has been implemented in the Advanced Real-Time Interactive Simulator for Training and Operation (ARISTO) software with the Nordic 32-bus test system. ARISTO offers the possibility to test the proposed scheme since it can be seen as the virtual power system with all live information. The analyses of power system voltage collapse scenarios with and without the proposed scheme implemented have shown the effectiveness of the scheme to prevent the voltage collapses.","PeriodicalId":267185,"journal":{"name":"2010 IEEE PES Innovative Smart Grid Technologies Conference Europe (ISGT Europe)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129449148","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}
Pub Date : 2010-11-18DOI: 10.1109/ISGTEUROPE.2010.5638922
C. Baone, C. DeMarco
Higher percentages of wind generation are anticipated to reduce effective inertia on the electric power grid, presenting challenges to electromechanical stability. Two technologies will help mitigate these stability problems: (i) advanced control systems on wind turbines, exploiting Phasor Measurement Units (PMUs), and (ii) deployment of controllable energy storage. This paper extends state feedback-based, centrally-coordinated control design for energy storage and wind generation to consider distributed, observer-based implementations. Establishing that a local bus PMU measurement at each controller is inappropriate, we demonstrate the feasibility of limiting each local controller to a very small set of remote PMU measurements. An approach is developed that characterizes the practical degree of observability achieved on a subspace of lightly damped electromechanical modes of interest. In a representative power system model, the measurement selection methodology and local observer design is shown to yield control performance very closely approximating that obtained in the centralized, full state feedback case.
{"title":"Observer-based distributed control design to coordinate wind generation and energy storage","authors":"C. Baone, C. DeMarco","doi":"10.1109/ISGTEUROPE.2010.5638922","DOIUrl":"https://doi.org/10.1109/ISGTEUROPE.2010.5638922","url":null,"abstract":"Higher percentages of wind generation are anticipated to reduce effective inertia on the electric power grid, presenting challenges to electromechanical stability. Two technologies will help mitigate these stability problems: (i) advanced control systems on wind turbines, exploiting Phasor Measurement Units (PMUs), and (ii) deployment of controllable energy storage. This paper extends state feedback-based, centrally-coordinated control design for energy storage and wind generation to consider distributed, observer-based implementations. Establishing that a local bus PMU measurement at each controller is inappropriate, we demonstrate the feasibility of limiting each local controller to a very small set of remote PMU measurements. An approach is developed that characterizes the practical degree of observability achieved on a subspace of lightly damped electromechanical modes of interest. In a representative power system model, the measurement selection methodology and local observer design is shown to yield control performance very closely approximating that obtained in the centralized, full state feedback case.","PeriodicalId":267185,"journal":{"name":"2010 IEEE PES Innovative Smart Grid Technologies Conference Europe (ISGT Europe)","volume":"128 8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131392251","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}
Pub Date : 2010-11-18DOI: 10.1109/ISGTEUROPE.2010.5638886
M. Uslar, S. Rohjans, R. Bleiker, José González, Michael Specht, Thomas Suding, Tobias Weidelt
Several standardization efforts for Smart Grids in US and Europe are currently gaining momentum. Even if there are different focuses in US and Europe on what is known as the smart grid, all agree on the fact, that standardization is a key issue for a proper technical interoperability [4]. Hence, a lot of studies and roadmaps pick standardization in the context of smart grids out as a central theme. The various approaches are concentrating on different core areas, depending on the circumstances in which they were elaborated. However, no overview aligning these approaches exists. This contribution takes up on a previous paper [35] where relevant approaches were described. In the meantime, new approaches from different countries and initiatives have come up which are shortly described in this addendum to part1.
{"title":"Survey of Smart Grid standardization studies and recommendations — Part 2","authors":"M. Uslar, S. Rohjans, R. Bleiker, José González, Michael Specht, Thomas Suding, Tobias Weidelt","doi":"10.1109/ISGTEUROPE.2010.5638886","DOIUrl":"https://doi.org/10.1109/ISGTEUROPE.2010.5638886","url":null,"abstract":"Several standardization efforts for Smart Grids in US and Europe are currently gaining momentum. Even if there are different focuses in US and Europe on what is known as the smart grid, all agree on the fact, that standardization is a key issue for a proper technical interoperability [4]. Hence, a lot of studies and roadmaps pick standardization in the context of smart grids out as a central theme. The various approaches are concentrating on different core areas, depending on the circumstances in which they were elaborated. However, no overview aligning these approaches exists. This contribution takes up on a previous paper [35] where relevant approaches were described. In the meantime, new approaches from different countries and initiatives have come up which are shortly described in this addendum to part1.","PeriodicalId":267185,"journal":{"name":"2010 IEEE PES Innovative Smart Grid Technologies Conference Europe (ISGT Europe)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128988737","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}
Pub Date : 2010-11-18DOI: 10.1109/ISGTEUROPE.2010.5638921
Bjoern Gwisdorf, S. Stepanescu, C. Rehtanz
This paper presents the effects of Demand Side Management (DSM) on the planning and operation of distribution grids. For this purpose the impact of DSM on the simultaneity function (also known as coincidence function) of electrical loads is taken into consideration. If there is a high DSM participation a distinct increase of the simultaneity factor can occur temporarily. The effects of an increased simultaneity factor on the loading of equipments and local voltage is analyzed taking a typical distribution grid configuration into account. The requirements of network reinforcement measures are presented and quantified with reference to DSM saturation.
{"title":"Effects of Demand Side Management on the planning and operation of distribution grids","authors":"Bjoern Gwisdorf, S. Stepanescu, C. Rehtanz","doi":"10.1109/ISGTEUROPE.2010.5638921","DOIUrl":"https://doi.org/10.1109/ISGTEUROPE.2010.5638921","url":null,"abstract":"This paper presents the effects of Demand Side Management (DSM) on the planning and operation of distribution grids. For this purpose the impact of DSM on the simultaneity function (also known as coincidence function) of electrical loads is taken into consideration. If there is a high DSM participation a distinct increase of the simultaneity factor can occur temporarily. The effects of an increased simultaneity factor on the loading of equipments and local voltage is analyzed taking a typical distribution grid configuration into account. The requirements of network reinforcement measures are presented and quantified with reference to DSM saturation.","PeriodicalId":267185,"journal":{"name":"2010 IEEE PES Innovative Smart Grid Technologies Conference Europe (ISGT Europe)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124296710","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}
Pub Date : 2010-11-18DOI: 10.1109/ISGTEUROPE.2010.5638898
R. Zolfaghari, Y. Shrivastava, V. Agelidis, G. M. Chu
This paper presents the theory, design and implementation of two real time virtual instruments to measure the power quality indices such as current harmonic distortion, voltage harmonic distortion and power factor as given by the IEEE standard. Different windowing techniques are explored in the estimation of the spectra. Cross spectral analysis is used for the measurement of phase angles in voltage and current signal. The virtual instrument integrates digital signal processing (DSP) methods such as windowing techniques and Cross-spectral density estimation with Welch spectral estimation to calculate voltage and current phasors. Moreover a tunable Kalman filter with a forgetting factor is applied to further enhance the results due to noise in the measurement. Simulations followed by a real time experiment using a rectified AC waveform applied across an RL circuit is followed to support the theoretical claims and further to show the robustness of the virtual instruments. Finally the two instruments are compared with each other in terms of performance and speed.
{"title":"Spectral analysis techniques with Kalman filtering for estimating power quality indices","authors":"R. Zolfaghari, Y. Shrivastava, V. Agelidis, G. M. Chu","doi":"10.1109/ISGTEUROPE.2010.5638898","DOIUrl":"https://doi.org/10.1109/ISGTEUROPE.2010.5638898","url":null,"abstract":"This paper presents the theory, design and implementation of two real time virtual instruments to measure the power quality indices such as current harmonic distortion, voltage harmonic distortion and power factor as given by the IEEE standard. Different windowing techniques are explored in the estimation of the spectra. Cross spectral analysis is used for the measurement of phase angles in voltage and current signal. The virtual instrument integrates digital signal processing (DSP) methods such as windowing techniques and Cross-spectral density estimation with Welch spectral estimation to calculate voltage and current phasors. Moreover a tunable Kalman filter with a forgetting factor is applied to further enhance the results due to noise in the measurement. Simulations followed by a real time experiment using a rectified AC waveform applied across an RL circuit is followed to support the theoretical claims and further to show the robustness of the virtual instruments. Finally the two instruments are compared with each other in terms of performance and speed.","PeriodicalId":267185,"journal":{"name":"2010 IEEE PES Innovative Smart Grid Technologies Conference Europe (ISGT Europe)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123758138","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}
Pub Date : 2010-11-18DOI: 10.1109/ISGTEUROPE.2010.5638941
R. Abe, H. Taoka, David McQuilkin
To support a high penetration of intermittent solar and wind power generation, many regions are planning to add new high capacity transmission lines. These additional transmission lines strengthen grid synchronization, but will also increase the grid's short circuit capacity, and furthermore will be very costly. With a highly interconnected grid and variable renewable generation, a small grid failure can easily start cascading outages, resulting in large scale blackout. We introduce the “Digital Grid”, where large synchronous grids are divided into smaller segmented grids which are connected asynchronously, via multi-leg IP addressed ACs/DC/ACs converters called Digital Grid Routers. These routers communicate with each other and send power among the segmented grids through existing transmission lines, which have been re-purposed as digital grid transmission lines. The Digital Grid can accept high penetrations of renewable power, prevent cascading outages, accommodate identifiable tagged electricity flows, record those transactions and trade electricity as a commodity.
{"title":"Digital Grid: Communicative electrical grids of the future","authors":"R. Abe, H. Taoka, David McQuilkin","doi":"10.1109/ISGTEUROPE.2010.5638941","DOIUrl":"https://doi.org/10.1109/ISGTEUROPE.2010.5638941","url":null,"abstract":"To support a high penetration of intermittent solar and wind power generation, many regions are planning to add new high capacity transmission lines. These additional transmission lines strengthen grid synchronization, but will also increase the grid's short circuit capacity, and furthermore will be very costly. With a highly interconnected grid and variable renewable generation, a small grid failure can easily start cascading outages, resulting in large scale blackout. We introduce the “Digital Grid”, where large synchronous grids are divided into smaller segmented grids which are connected asynchronously, via multi-leg IP addressed ACs/DC/ACs converters called Digital Grid Routers. These routers communicate with each other and send power among the segmented grids through existing transmission lines, which have been re-purposed as digital grid transmission lines. The Digital Grid can accept high penetrations of renewable power, prevent cascading outages, accommodate identifiable tagged electricity flows, record those transactions and trade electricity as a commodity.","PeriodicalId":267185,"journal":{"name":"2010 IEEE PES Innovative Smart Grid Technologies Conference Europe (ISGT Europe)","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121668800","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}
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