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Heuristic Inertia Estimation Technique for Power Networks with High Penetration of RES 高RES渗透电网的启发式惯性估计技术
2020 2nd International Conference on Smart Power & Internet Energy Systems (SPIES) Pub Date : 2020-09-15 DOI: 10.1109/SPIES48661.2020.9242923
Peter Makolo, R. Zamora, T. Lie
{"title":"Heuristic Inertia Estimation Technique for Power Networks with High Penetration of RES","authors":"Peter Makolo, R. Zamora, T. Lie","doi":"10.1109/SPIES48661.2020.9242923","DOIUrl":"https://doi.org/10.1109/SPIES48661.2020.9242923","url":null,"abstract":"The inertia-less renewable energy sources (RESs) are potential to replace conventional synchronous generators with their associated inertias in the power system. The increased penetration of RESs into the grid will, therefore, lead to variability and unpredictability of system inertia due to stochastic nature of RESs. This paper, therefore, presents a heuristic technique to estimate the varying inertia in the power network using normal operating conditions. In this approach, phasor measurement units (PMUs) are used to extract data from the network and hence used to estimate the dynamic model representing the network. The higher order estimated model is then decomposed to lower order model for not only easy analysis and simplified inertia estimation process but also reduced computation burden. Contrasted to other approaches using large disturbance, the suggested technique can estimate inertia constant of the network using normal operating conditions. The technique has been tested using numerical simulations of a modified IEEE 14-bus network modelled in industry accepted DIgSILENT™ PowerFactory® tool.","PeriodicalId":244426,"journal":{"name":"2020 2nd International Conference on Smart Power & Internet Energy Systems (SPIES)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129547552","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: 7
Extended Self-Tuning Filter-Based Synchronization Technique for Unbalanced and Distorted Grid 基于扩展自调谐滤波器的不平衡和畸变网格同步技术
2020 2nd International Conference on Smart Power & Internet Energy Systems (SPIES) Pub Date : 2020-09-15 DOI: 10.1109/SPIES48661.2020.9242953
H. Ahmed, S. Biricik, M. Benbouzid
{"title":"Extended Self-Tuning Filter-Based Synchronization Technique for Unbalanced and Distorted Grid","authors":"H. Ahmed, S. Biricik, M. Benbouzid","doi":"10.1109/SPIES48661.2020.9242953","DOIUrl":"https://doi.org/10.1109/SPIES48661.2020.9242953","url":null,"abstract":"Control of grid-connected converters (GCC) is a challenging task in adverse grid conditions. Due to increasing presence of inverter-interfaced renewable energy sources and nonlinear loads, adverse grid conditions are often can not be avoided. Self-tuning filter (STF) is an widely used technique for the control of GCC in adverse conditions. However, the existing literature only considers balanced grid condition. This paper extends STF for unbalanced grid. Proposed extension is obtained by considering STF in state-space framework together with model of the unbalanced grid. Using open-loop frequency estimation technique, frequency-adaptive STF is proposed that is able to operate in unbalanced and distorted grid. Mathematical analysis are presented to demonstrate the frequency selective property of the extended STF. Comparative numerical simulation results are provided to demonstrate the suitability of the proposed technique.","PeriodicalId":244426,"journal":{"name":"2020 2nd International Conference on Smart Power & Internet Energy Systems (SPIES)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129869595","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: 3
Demand Response in Smart Grid – A Systematic Mapping Study 智能电网的需求响应——系统映射研究
2020 2nd International Conference on Smart Power & Internet Energy Systems (SPIES) Pub Date : 2020-09-15 DOI: 10.1109/SPIES48661.2020.9243107
S. M. Shahnewaz Siddiquee, B. Howard, D. O’Sullivan, K. Bruton
{"title":"Demand Response in Smart Grid – A Systematic Mapping Study","authors":"S. M. Shahnewaz Siddiquee, B. Howard, D. O’Sullivan, K. Bruton","doi":"10.1109/SPIES48661.2020.9243107","DOIUrl":"https://doi.org/10.1109/SPIES48661.2020.9243107","url":null,"abstract":"Growing demand for electricity and the innovations in smart grid technologies is providing new opportunities for intelligent electrical demand loads control in the form of Demand Response (DR). In this paper, we present a comprehensive review of demand response by conducting a systematic mapping of the field to evaluate the current research trends, knowledge gaps, and the scope of future research of DR in the smart grid applications. Bibliometric analysis has been done to map the research themes under the demand response domain by analyzing the co-relationships in the metadata originated from the SCOPUS database. Thorough content analysis has also been performed, and six emerging research themes have been identified along with fundamental research questions commonly addressed to devise future research directions.","PeriodicalId":244426,"journal":{"name":"2020 2nd International Conference on Smart Power & Internet Energy Systems (SPIES)","volume":"95 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128966298","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
A Wide Duty Cycle Magnetic Isolation MOSFET Drive Circuit for Aerospace High-Reliability Power Supply 用于航天高可靠性电源的宽占空比磁隔离MOSFET驱动电路
2020 2nd International Conference on Smart Power & Internet Energy Systems (SPIES) Pub Date : 2020-09-15 DOI: 10.1109/SPIES48661.2020.9243153
Wu Jian-chao, Zhao Wen-jie, Zhang Guo-shuai
{"title":"A Wide Duty Cycle Magnetic Isolation MOSFET Drive Circuit for Aerospace High-Reliability Power Supply","authors":"Wu Jian-chao, Zhao Wen-jie, Zhang Guo-shuai","doi":"10.1109/SPIES48661.2020.9243153","DOIUrl":"https://doi.org/10.1109/SPIES48661.2020.9243153","url":null,"abstract":"A magnetically isolated MOSFET driving circuit based on a driving transformer has been widely used in aerospace secondary power supplies. Based on the analysis of two typical magnetically isolated driving circuits, a new type of driving circuit is proposed. This circuit has the characteristics of zero negative voltage, high reliability, and wide duty cycle operating range. It is very suitable for a new generation of aerospace high-efficiency high-power-density power supply topology, and it has important significance for improving the efficiency of space borne secondary power supplies.","PeriodicalId":244426,"journal":{"name":"2020 2nd International Conference on Smart Power & Internet Energy Systems (SPIES)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121102158","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
A Slip Angle Computation Algorithm for Synchronization and Current Control of a Grid-Connected Doubly-Fed Induction Generator 并网双馈感应发电机同步与电流控制的滑移角计算算法
2020 2nd International Conference on Smart Power & Internet Energy Systems (SPIES) Pub Date : 2020-09-15 DOI: 10.1109/SPIES48661.2020.9243066
Thanapon Wongyai, Y. Kumsuwan
{"title":"A Slip Angle Computation Algorithm for Synchronization and Current Control of a Grid-Connected Doubly-Fed Induction Generator","authors":"Thanapon Wongyai, Y. Kumsuwan","doi":"10.1109/SPIES48661.2020.9243066","DOIUrl":"https://doi.org/10.1109/SPIES48661.2020.9243066","url":null,"abstract":"In this paper, the computation of a slip position is introduced for the grid-flux oriented control of a grid-connected doubly fed induction generator. For the DC excitation process in the rotor-side converter, the stator voltage is built at the stator terminals, which is related to the shaft speed and magnetizing current. Therefore, the corrected rotor electrical and slip angular speeds are received. Again, for the AC excitation process, the condition of the synchronizing is proposed by checking the slip position between estimated and real slip angles. If it is matching at the zero angles, the DC excitation is changed to the AC excitation with the real slip angle; in addition, the induced stator voltage and frequency are completely synchronized with the utility grid. For the grid-connected operation, the dq-axes rotor currents are also proposed to regulate the grid-flux and to control the electromagnetic torque. To assess the performance of the proposed control algorithm, computer modeling is developed, the simulation results are provided.","PeriodicalId":244426,"journal":{"name":"2020 2nd International Conference on Smart Power & Internet Energy Systems (SPIES)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131114705","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
On the Key Factors of Frequency Stability in Future Low-Inertia Power Systems 未来低惯量电力系统频率稳定的关键因素研究
2020 2nd International Conference on Smart Power & Internet Energy Systems (SPIES) Pub Date : 2020-09-15 DOI: 10.1109/SPIES48661.2020.9243024
Shiyong Wu, Peng Yang, Yunfan Zhang, Dongxue Gao, Chenghao Li, Feng Liu
{"title":"On the Key Factors of Frequency Stability in Future Low-Inertia Power Systems","authors":"Shiyong Wu, Peng Yang, Yunfan Zhang, Dongxue Gao, Chenghao Li, Feng Liu","doi":"10.1109/SPIES48661.2020.9243024","DOIUrl":"https://doi.org/10.1109/SPIES48661.2020.9243024","url":null,"abstract":"The integration of high-penetration of renewable generation has caused sustained reduction of system inertia but also create new capability for frequency regulation. The common understanding is the loss of inertia is the main reason why the system frequency stability deteriorates. In this paper, considering swing dynamics with the primary frequency control, we identify the key factors that mostly affect frequency stability through sensitivity analysis on maximum frequency deviation. Surprisingly, we find that the droop coefficient of the primary frequency control has the most significant influence on the frequency response and hence the frequency stability, while the inertia is the least important, which is somewhat opposite to the common sense. Simulations on the simplified Northwest Chinese power system empirically justify our theoretical results well.","PeriodicalId":244426,"journal":{"name":"2020 2nd International Conference on Smart Power & Internet Energy Systems (SPIES)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123688782","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
Utilizing Data Centers for Inertia and Fast Frequency Response Services 利用数据中心进行惯性和快速频率响应服务
2020 2nd International Conference on Smart Power & Internet Energy Systems (SPIES) Pub Date : 2020-09-15 DOI: 10.1109/SPIES48661.2020.9243001
Dlzar Al Kez, A. Foley, P. Brogan, D. Morrow
{"title":"Utilizing Data Centers for Inertia and Fast Frequency Response Services","authors":"Dlzar Al Kez, A. Foley, P. Brogan, D. Morrow","doi":"10.1109/SPIES48661.2020.9243001","DOIUrl":"https://doi.org/10.1109/SPIES48661.2020.9243001","url":null,"abstract":"This research evaluates data centers as an emergency source of virtual inertia and fast frequency response, using PMUs to detect disturbances. The performance of the proposed method is validated using DIgSILENT PowerFactory simulation, calibrated using a real frequency event that occurred in the Irish power system. Wind generation is significant in the Irish system and significantly higher levels are required to reach renewable energy targets. Wind power, like photovoltaics, are mediated by power electronics that do not inherently respond to frequency variation. This research addresses problems with the drop in system inertia and the availability of primary frequency response on systems with high non-synchronous infeed. Demand response has the potential to replace these services. Typically, a large number of domestic, or light industrial, loads are considered for such services, but these present challenges in terms of monitoring and control. This research focuses on the potential of large load data centers that incorporate uninterruptable power supplies as standard, therefore a demand response does not have a direct effect on operation.","PeriodicalId":244426,"journal":{"name":"2020 2nd International Conference on Smart Power & Internet Energy Systems (SPIES)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114075978","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
Current Rating Analysis of a Nine-Switch based Unified Expandable Power Converter Considering Different Configurations 考虑不同配置的九开关统一可扩展电源变换器的额定电流分析
2020 2nd International Conference on Smart Power & Internet Energy Systems (SPIES) Pub Date : 2020-09-15 DOI: 10.1109/SPIES48661.2020.9243049
H. Bizhani, S. Muyeen, Fatemeh R. Tatari, K. Techato, L. Ben‐Brahim, F. Blaabjerg
{"title":"Current Rating Analysis of a Nine-Switch based Unified Expandable Power Converter Considering Different Configurations","authors":"H. Bizhani, S. Muyeen, Fatemeh R. Tatari, K. Techato, L. Ben‐Brahim, F. Blaabjerg","doi":"10.1109/SPIES48661.2020.9243049","DOIUrl":"https://doi.org/10.1109/SPIES48661.2020.9243049","url":null,"abstract":"Using low switch converters due to their cost-effectiveness has been an interesting topic in different applications such as grid integration of distributed generation systems and multi-machine drives. Recently, a nine-switch based unified expandable power converter (UEPC) has been presented for integration of multi permanent magnet synchronous machine (PMSG) based wind energy systems (WESs) in which the number of switches in comparison with the conventional configurations is significantly reduced. Nevertheless, since all switches are shared between all ports and therefore, the currents of different ports pass through all switches, the current rating of the switches might be higher than the conventional structure. In this paper, to minimize the total required current rating of the semiconductor as well as the installation cost of the UEPC, different acceptable configurations considering different port for grid connection are evaluated and the best port for grid connection is proposed. Finally, to verify the analysis results, the simulation of a three-port version of UEPC is carried out using MATLAB/Simulink software. The simulation results also confirm that when the grid is connected to the middle port, the minimum instantaneous currents pass through the switches.","PeriodicalId":244426,"journal":{"name":"2020 2nd International Conference on Smart Power & Internet Energy Systems (SPIES)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114679118","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
Analysis of Fault Characteristics of Hybrid Multiterminal HVDC Transmission System 混合多端子直流输电系统故障特征分析
2020 2nd International Conference on Smart Power & Internet Energy Systems (SPIES) Pub Date : 2020-09-15 DOI: 10.1109/SPIES48661.2020.9243007
M. Li, Keao Chen, Jinghan He, Yiping Luo, Xiaojun Wang, Guomin Luo, Dahai Zhang
{"title":"Analysis of Fault Characteristics of Hybrid Multiterminal HVDC Transmission System","authors":"M. Li, Keao Chen, Jinghan He, Yiping Luo, Xiaojun Wang, Guomin Luo, Dahai Zhang","doi":"10.1109/SPIES48661.2020.9243007","DOIUrl":"https://doi.org/10.1109/SPIES48661.2020.9243007","url":null,"abstract":"Hybrid multi-terminal high-voltage direct current (HVDC) systems have become the most competitive and promising candidate for HVDC system. With the development, a new topology is proposed, whose receiving terminal involves line-commutated converters (LCCs) and modular multi-level converters (MMCs). The analysis of fault characteristics is lacking in this new hybrid multi-terminal HVDC system with complex topology and control strategies. In this paper, a typical topology simulation model of hybrid multi-terminal HVDC transmission system is built in PSCAD/EMTDC. The fault characteristics of hybrid multi-terminal HVDC system are analyzed, which is the basis for the subsequent protection theory research and practical application of engineering.","PeriodicalId":244426,"journal":{"name":"2020 2nd International Conference on Smart Power & Internet Energy Systems (SPIES)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122072737","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: 3
Impact of PV Plant and Load Models on System Strength and Voltage Recovery of Power Systems 光伏电站和负荷模型对电力系统强度和电压恢复的影响
2020 2nd International Conference on Smart Power & Internet Energy Systems (SPIES) Pub Date : 2020-09-15 DOI: 10.1109/SPIES48661.2020.9243000
Abdulrhman Alshareef, R. Shah, N. Mithulananthan
{"title":"Impact of PV Plant and Load Models on System Strength and Voltage Recovery of Power Systems","authors":"Abdulrhman Alshareef, R. Shah, N. Mithulananthan","doi":"10.1109/SPIES48661.2020.9243000","DOIUrl":"https://doi.org/10.1109/SPIES48661.2020.9243000","url":null,"abstract":"In recent years, non-conventional inverter-based sources, namely, wind, PV, and others have emerged as excellent alternatives to the traditional synchronous machine for power generation. It has also been reported that the so-called system strength may be reduced with high penetration of non-conventional generations (NCGs). A number of methods have been used to assess system strength which may not reflect the interdependency or reciprocal influence of various factors affecting it. This paper presents a thorough assessment to quantify the implications of and the interaction of various factors affecting system strength, with the voltage recovery index being used as a quantification tool.","PeriodicalId":244426,"journal":{"name":"2020 2nd International Conference on Smart Power & Internet Energy Systems (SPIES)","volume":"17 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122928602","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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