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An Investigation of the Impact of D-FACTS Devices Implementations on the Mho Distance Elements D-FACTS器件实现对Mho距离元素影响的研究
2019 North American Power Symposium (NAPS) Pub Date : 2019-10-01 DOI: 10.1109/NAPS46351.2019.9000249
Hussain Beleed, B. Johnson, H. Hess
{"title":"An Investigation of the Impact of D-FACTS Devices Implementations on the Mho Distance Elements","authors":"Hussain Beleed, B. Johnson, H. Hess","doi":"10.1109/NAPS46351.2019.9000249","DOIUrl":"https://doi.org/10.1109/NAPS46351.2019.9000249","url":null,"abstract":"This paper reports on an investigation of the impact of inductive Distributed Flexible AC Transmission System (D-FACTS) devices implementations on the mho distance elements. D-FACTS can be used as a distributed solution for relieving congestion in transmission lines, but their operation may lead to unpredictable changes in the transmission line impedance and possible limitation of fault current. The presence of these devices may cause failure to trip, unwanted trip, or misleading fault location information. Different types of D-FACTS implementations, such as either compressed or dispersed implementation are examined to show their influence on the protection system performance of the transmission lines by using relay software model and commercial relays. The main objective of this paper is to provide a good understanding of the D-FACTS effect on the protection elements and then to come up with recommendations for D-FACTS implementation and protective relay settings.","PeriodicalId":175719,"journal":{"name":"2019 North American Power Symposium (NAPS)","volume":"221 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124390087","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
Robust Nonlinear Optimal Control for Voltage-Frequency and Active-Reactive Power Regulation in Microgrids 微电网电压频率和有功无功调节的鲁棒非线性最优控制
2019 North American Power Symposium (NAPS) Pub Date : 2019-10-01 DOI: 10.1109/NAPS46351.2019.9000228
Serafin Ramos-Paz, F. Ornelas‐Tellez, J. Rico-Melgoza
{"title":"Robust Nonlinear Optimal Control for Voltage-Frequency and Active-Reactive Power Regulation in Microgrids","authors":"Serafin Ramos-Paz, F. Ornelas‐Tellez, J. Rico-Melgoza","doi":"10.1109/NAPS46351.2019.9000228","DOIUrl":"https://doi.org/10.1109/NAPS46351.2019.9000228","url":null,"abstract":"This paper presents a novel nonlinear optimal and robust control strategy, for the dual operation mode for a microgrid. During the grid-connected operation mode, it uses PQ control mode, in order to inject or absorb active or reactive power to the microgrid AC common bus, while on the other hand after an isolation event, the microgrid uses the VF control mode in order to ensure the voltage and frequency regulation to the local load. The main contribution of this paper is to present an alternative control scheme, instead of the classical control methods based on nested linear controllers, with dedicated control loops for the current and voltage regulation. The advantages of the proposed control strategy are that the control algorithm is able to achieve the control objectives and at the same minimizes a given performance index, expressed in terms of the control expenditure and the tracking reference error. It is worth mentioning that the microgrid under study is modeled using the dq-frame and therefore output power of the system becomes a nonlinear function of the state, therefore it is necessary to apply nonlinear optimal and robust controllers in order to reject the parametric uncertainties of the system and deal with the microgrld nonlinear behavior.","PeriodicalId":175719,"journal":{"name":"2019 North American Power Symposium (NAPS)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122186377","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
Network Reduction in Transient Stability Models using Partial Response Matching 基于部分响应匹配的暂态稳定模型网络约简
2019 North American Power Symposium (NAPS) Pub Date : 2019-10-01 DOI: 10.1109/NAPS46351.2019.9000378
Benjamin L. Francis, Jacob R. Nuttall, M. Transtrum, A. Sarić, A. Stanković
{"title":"Network Reduction in Transient Stability Models using Partial Response Matching","authors":"Benjamin L. Francis, Jacob R. Nuttall, M. Transtrum, A. Sarić, A. Stanković","doi":"10.1109/NAPS46351.2019.9000378","DOIUrl":"https://doi.org/10.1109/NAPS46351.2019.9000378","url":null,"abstract":"We describe a method for simultaneously identifying and reducing dynamic power systems models in the form of differential-algebraic equations. Often, these models are large and complex, containing more parameters than can be identified from the available system measurements. We demonstrate our method on transient stability models, using the IEEE 14-bus test system. Our approach uses techniques of information geometry to remove unidentifiable parameters from the model. We examine the case of a networked system with 58 parameters using full observations throughout the network. We show that greater reduction can be achieved when only partial observations are available, Including reduction of the network itself.","PeriodicalId":175719,"journal":{"name":"2019 North American Power Symposium (NAPS)","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123813900","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
Real-time Congestion Prevention in Modern Distribution Power Systems via Demand Response of Smart Homes 基于智能家居需求响应的现代配电系统实时拥塞预防
2019 North American Power Symposium (NAPS) Pub Date : 2019-10-01 DOI: 10.1109/NAPS46351.2019.9000380
A. Asrari, M. Ansari, K. C. Bibek
{"title":"Real-time Congestion Prevention in Modern Distribution Power Systems via Demand Response of Smart Homes","authors":"A. Asrari, M. Ansari, K. C. Bibek","doi":"10.1109/NAPS46351.2019.9000380","DOIUrl":"https://doi.org/10.1109/NAPS46351.2019.9000380","url":null,"abstract":"Modernization of distribution power systems is accompanied with 1) higher integration of wind turbine distributed generation (WTDG) and photovoltaic DG (PVDG) units as rooftop DGs or small power plants operated by private owners in de-regulated markets, 2) massive utilization of electric vehicles (EVs) in smart cities, and 3) extensive demand response (DR) services offered by smart homes. This paper proposes a systematic framework for modern distribution networks operation where DG aggregators (DGAGs), EV aggregators (EVAGs), and demand response aggregators (DRAGs) are motivated to contribute to real-time congestion prevention via greater local generation, flexible platform for charging schedule, and non-firm load curtailment, respectively. Moreover, a realistic mechanism is developed for microgrid operators (MGOs) to 1) relieve the system operator (SO) from the pressure of centralized congestion management and 2) optimally utilize the assets of each microgrid to prevent congestions in a decentralized manner. The performance of the proposed scheme is validated on an unbalanced distribution system containing 4 microgrids, 250 EVs, 31 WTDGs, 54 PVDGs, and 140 smart homes with DR contract.","PeriodicalId":175719,"journal":{"name":"2019 North American Power Symposium (NAPS)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129587917","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
Impact of Seasonal Net load Variation on Load Shedding Ratio in Islanded Microgrid Operation 孤岛微网运行季节净负荷变化对减载率的影响
2019 North American Power Symposium (NAPS) Pub Date : 2019-10-01 DOI: 10.1109/NAPS46351.2019.9000194
T. Masaud
{"title":"Impact of Seasonal Net load Variation on Load Shedding Ratio in Islanded Microgrid Operation","authors":"T. Masaud","doi":"10.1109/NAPS46351.2019.9000194","DOIUrl":"https://doi.org/10.1109/NAPS46351.2019.9000194","url":null,"abstract":"Due to the absence of grid-tie and limited generation, Islanded microgrids (MGs) may experience a large frequency and voltage deviation which can lead to system collapse. Thus, load shedding is a commonly used technique to achieve a stable operation in remote islanded MGs. Optimal scheduling and effective coordination between local resources are essential to minimize load shedding and achieve a reliable operation. This paper presents an optimization model for optimal scheduling of islanded microgrid local resources to assure supply-demand balance and minimize the load-shedding amount as well as determining the optimal amount of load to be shed. The proposed model is a centralized scheduling model that performs a centralized operation and control. A Mixed Integer Linear Programming (MILP) is used to formulate the proposed optimization model and solved using CPLEX tool. The influence of the seasonal net load variability on the model performance has been considered in this study. Numerical results demonstrated the effectiveness of the proposed operation model.","PeriodicalId":175719,"journal":{"name":"2019 North American Power Symposium (NAPS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131143860","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
Wide-Area Electric Grid Visualization Using Pseudo-Geographic Mosaic Displays 使用伪地理马赛克显示的广域电网可视化
2019 North American Power Symposium (NAPS) Pub Date : 2019-10-01 DOI: 10.1109/NAPS46351.2019.8999970
T. Overbye, Jessica L. Wert, A. Birchfield, J. Weber
{"title":"Wide-Area Electric Grid Visualization Using Pseudo-Geographic Mosaic Displays","authors":"T. Overbye, Jessica L. Wert, A. Birchfield, J. Weber","doi":"10.1109/NAPS46351.2019.8999970","DOIUrl":"https://doi.org/10.1109/NAPS46351.2019.8999970","url":null,"abstract":"This paper introduces a new technique for wide-area visualization of information about electric power grids known as a pseudo-geographic mosaic displays (PGMDs). The PGMD approach uses dynamically created geographic data view (GDV) objects to show information about the attributes of different electric grid objects, and then arranges them on the screen to maximize the used display space. The paper presents the PGMD algorithm and then discusses design approaches to maximize their usability. Results are presented for several large-scale electric grids.","PeriodicalId":175719,"journal":{"name":"2019 North American Power Symposium (NAPS)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129431370","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
Improving Performance of Multi-Area State Estimation Using Spectral Clustering 利用谱聚类提高多区域状态估计性能
2019 North American Power Symposium (NAPS) Pub Date : 2019-10-01 DOI: 10.1109/NAPS46351.2019.8999981
D. W. Kelle, A. Abur
{"title":"Improving Performance of Multi-Area State Estimation Using Spectral Clustering","authors":"D. W. Kelle, A. Abur","doi":"10.1109/NAPS46351.2019.8999981","DOIUrl":"https://doi.org/10.1109/NAPS46351.2019.8999981","url":null,"abstract":"This paper investigates the problem of dividing a large power system into several areas to be solved by a state estimator which coordinates locally obtained decentralized estimates. By applying automatic partitioning to the utility system, the performance of the distributed state estimator can be improved as compared to the pre-defined utility control areas. The presented approach utilizes the spectral properties of the un-directed graph formed by assigning a vertex to every bus and an edge to every pair of buses connected by a line. The graph Laplacian matrix and associated eigenvectors and eigenvalues are used to cluster the graph vertices in such a way that each area has a large number of internal connections, but a small number of external connections. This approach is demonstrated using the IEEE 118 bus system.","PeriodicalId":175719,"journal":{"name":"2019 North American Power Symposium (NAPS)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133745472","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
Optimal Adaptive Coordinated Cyber-Attacks on Power Grids using ∊-Greedy Method 基于<s:1>贪心法的电网最优自适应协调网络攻击
2019 North American Power Symposium (NAPS) Pub Date : 2019-10-01 DOI: 10.1109/NAPS46351.2019.9000385
Peimeng Guan, Jiankang Wang
{"title":"Optimal Adaptive Coordinated Cyber-Attacks on Power Grids using ∊-Greedy Method","authors":"Peimeng Guan, Jiankang Wang","doi":"10.1109/NAPS46351.2019.9000385","DOIUrl":"https://doi.org/10.1109/NAPS46351.2019.9000385","url":null,"abstract":"The future power grid is supported by Information and Communication Technology, which also exposes it to cyber-attacks. In particular, Coordinated Cyber-Attacks (CCAs) are highly threatening and difficult to defend against. In this paper, we propose a stochastic game model to capture the interaction between attackers and the grid operator. In particular, we consider the most vicious CCAs, which intend to cause cascading power blackouts, through a non-cooperative zero-sum game. The CCA attack vector is derived with the Multi-Armed Bandit E-Greedy method. Distinct from few existing studies on CCAs, the attack model is more realistic in twofold: (i) it does not assume attackers with prior knowledge of the power grid, and (ii) attackers could adapt their strategies in response to defense actions. The result of this paper provides important implications in defense resource allocation and cybersecurity infrastructure reinforcement in the power grid. The proposed model and the attack vector is validated using the New England 39 bus power system model.","PeriodicalId":175719,"journal":{"name":"2019 North American Power Symposium (NAPS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130262098","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
A Non-Exhaustive Search Algorithm to Identify Distribution Grid Operational Topology 配电网运行拓扑识别的非穷举搜索算法
2019 North American Power Symposium (NAPS) Pub Date : 2019-10-01 DOI: 10.1109/NAPS46351.2019.9000369
Anandini Gandluru, Shiva Poudel, A. Dubey
{"title":"A Non-Exhaustive Search Algorithm to Identify Distribution Grid Operational Topology","authors":"Anandini Gandluru, Shiva Poudel, A. Dubey","doi":"10.1109/NAPS46351.2019.9000369","DOIUrl":"https://doi.org/10.1109/NAPS46351.2019.9000369","url":null,"abstract":"Distribution grid, in general, is constructionally loopy but a radially operated network. Opening and closing of suitable tie-switches allow transition from one topology to another. Identifying the operational topology of a distribution system is essential for accurate control actions. This paper proposes a non-exhaustive search approach to detect the operational topology of the distribution feeder by estimating the switch statuses. In this work, a mixed-integer linear programming approach is proposed that finds the correct operational topology by identifying the system load demand and power flow variables that are closest to the corresponding measured values. The problem is constrained by distribution power flow and radial structure of the feeder. This formulation allows the inclusion of errors in power/line flow measurements making it more suitable for a practical distribution system. The proposed approach finds the correct operational topology without exhaustively searching for all possible topologies. We thoroughly validate the accuracy and effectiveness of the proposed approach in identifying correct operational topology using IEEE 123-node feeder with the help of numerous simulations studies. It is observed that the approach performs well even at very high percentages of load and flow measurement errors.","PeriodicalId":175719,"journal":{"name":"2019 North American Power Symposium (NAPS)","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114491366","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
Visibility of WECC Wide Area System Tests Measured from the Consumer Level 从消费者层面衡量的WECC广域系统测试的可见性
2019 North American Power Symposium (NAPS) Pub Date : 2019-10-01 DOI: 10.1109/NAPS46351.2019.9000205
Sean McColley, J. Pierre, V. Bershinsky, Thomas VanHoudt
{"title":"Visibility of WECC Wide Area System Tests Measured from the Consumer Level","authors":"Sean McColley, J. Pierre, V. Bershinsky, Thomas VanHoudt","doi":"10.1109/NAPS46351.2019.9000205","DOIUrl":"https://doi.org/10.1109/NAPS46351.2019.9000205","url":null,"abstract":"For over a decade, the BPA and WECC have been routinely performing system wide tests. These tests involve injecting known probing signals at the PDCI or applying the Chief Joseph Brake. Most of the literature analyzing the tests have been carried out with data gathered from transmission level voltages. This paper takes a low voltage perspective and analyzes the power signal from a consumer viewpoint using PMU measurements. The objective is to see which of these tests are visible at the consumer level and, if detectable, the size of the disturbance. There are some probing signals that will not be detected as consumer voltages are noisy compared to their transmission counterparts and the signal is attenuated. This paper focuses on signals that can be detected.","PeriodicalId":175719,"journal":{"name":"2019 North American Power Symposium (NAPS)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114667501","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
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