2021 3rd International Conference on Smart Power & Internet Energy Systems (SPIES)最新文献

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Voltage Support Capacity During Grid Disturbances Based on Flexible Excitation System with ESS 基于ESS柔性励磁系统的电网扰动电压支撑能力研究
2021 3rd International Conference on Smart Power & Internet Energy Systems (SPIES) Pub Date : 2021-09-25 DOI: 10.1109/SPIES52282.2021.9633851
Liping Cheng, Jiancheng Zhang, Hongtao Xiong, Tiantian Zhang, Yuwei Peng, C. Mao
{"title":"Voltage Support Capacity During Grid Disturbances Based on Flexible Excitation System with ESS","authors":"Liping Cheng, Jiancheng Zhang, Hongtao Xiong, Tiantian Zhang, Yuwei Peng, C. Mao","doi":"10.1109/SPIES52282.2021.9633851","DOIUrl":"https://doi.org/10.1109/SPIES52282.2021.9633851","url":null,"abstract":"Flexible excitation system is a new type of excitation system. When it is combined with an energy storage system (ESS), it can control the exchange of active and reactive power between the AC side and the grid. This paper analyzes the qualitative and quantitative analysis of the flexible excitation system’s ability to support the grid voltage under large disturbances by simplifying the model and simulating. The results show that the flexible excitation system with ESS can provide effective voltage support under various faults. It is a prospective substitute to the conventional excitation system in the future large power grid.","PeriodicalId":411512,"journal":{"name":"2021 3rd International Conference on Smart Power & Internet Energy Systems (SPIES)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125011487","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
Wind-Solar-Load Power Scenario Reduction Based on Residual Multi-Channel Convolutional Auto-Encoders 基于残差多通道卷积自编码器的风能-太阳能负荷场景缩减
2021 3rd International Conference on Smart Power & Internet Energy Systems (SPIES) Pub Date : 2021-09-25 DOI: 10.1109/SPIES52282.2021.9633868
Yang Cao, Haifeng Huang, Hong Zhang, Xiaolu Li, Yuzheng Peng, Xinran Li
{"title":"Wind-Solar-Load Power Scenario Reduction Based on Residual Multi-Channel Convolutional Auto-Encoders","authors":"Yang Cao, Haifeng Huang, Hong Zhang, Xiaolu Li, Yuzheng Peng, Xinran Li","doi":"10.1109/SPIES52282.2021.9633868","DOIUrl":"https://doi.org/10.1109/SPIES52282.2021.9633868","url":null,"abstract":"The traditional methods of generating typical scenarios are prone to information loss and feature extraction inaccuracy. Considering the characteristics of wind-solar-load data with physical individual independence, complex complementary coupling, and the quality of data dimensionality reduction, a method of generating typical wind-solar-load scenarios based on the residual multi-channel convolutional auto-encoder (RESMCAE) is proposed. With respect to data dimensionality reduction, each independent feature extraction encoder is improved by the residual module to solve the problem of gradient disappearance, reduce information loss and ensure the information integrity. The performance of the network is enhanced through integrating multi-resolution features by the decoder of multi-layer fusion structure. The KL divergence is used for optimizing the network structure, and the Adam algorithm for parameter tuning. The proposed method is verified by comparing with traditional clustering methods on Davies-Bouldin Index (DBI) and Calinski-Harabasz Index (CHI) scores. The results show that the RESMCAE is feasible.","PeriodicalId":411512,"journal":{"name":"2021 3rd International Conference on Smart Power & Internet Energy Systems (SPIES)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125500182","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
Novel High Voltage Gain DC-DC Converter with Low Voltage Stress for Renewable Energy Systems 用于可再生能源系统的新型低电压应力高增益DC-DC变换器
2021 3rd International Conference on Smart Power & Internet Energy Systems (SPIES) Pub Date : 2021-09-25 DOI: 10.1109/SPIES52282.2021.9633876
X. Yue, Jiawei Zhao, Daolian Chen
{"title":"Novel High Voltage Gain DC-DC Converter with Low Voltage Stress for Renewable Energy Systems","authors":"X. Yue, Jiawei Zhao, Daolian Chen","doi":"10.1109/SPIES52282.2021.9633876","DOIUrl":"https://doi.org/10.1109/SPIES52282.2021.9633876","url":null,"abstract":"A novel high gain hybrid Z-source dc-dc converter with low voltage stress is proposed in this paper. With two quasi-Z source structures, the proposed topology can obtain high step-up voltage conversation at the appreciate duty ratio. Besides, compared with the convectional boost converter, the voltage stresses of power element and diode can be reduced. Moreover, there is no limit to the duty ratio. Furthermore, the operating principles, steady-state characteristics analysis and a comparison are analyzed. The performances of the proposed converter are compared with other high-step-up converters behaviors. Finally, the experiment results of the proposed converter are validated at the boost capacity.","PeriodicalId":411512,"journal":{"name":"2021 3rd International Conference on Smart Power & Internet Energy Systems (SPIES)","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116461680","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
Research on Source-load Coordinated Dispatch Based on Multi-scenario Wind Power Consumption 基于多场景风电消纳的源荷协调调度研究
2021 3rd International Conference on Smart Power & Internet Energy Systems (SPIES) Pub Date : 2021-09-25 DOI: 10.1109/SPIES52282.2021.9633930
Liangguo Qian, Shunfu Lin, W. Wang, Duc-Cuong Quach
{"title":"Research on Source-load Coordinated Dispatch Based on Multi-scenario Wind Power Consumption","authors":"Liangguo Qian, Shunfu Lin, W. Wang, Duc-Cuong Quach","doi":"10.1109/SPIES52282.2021.9633930","DOIUrl":"https://doi.org/10.1109/SPIES52282.2021.9633930","url":null,"abstract":"With the rapid development of new energy in China, the installed capacity of wind power has ranked first in the world. The randomness of wind power output increases the regulation pressure of conventional power supply, and the problem of wind power consumption is becoming more serious. This paper proposes a source-load coordinated optimal scheduling method considering the uncertainty of wind power. High energy load with adjustable characteristics and conventional power supply are used to participate in the optimal dispatch of power grid. Based on nonparametric kernel density estimation, a wind power output model is constructed, and a large number of simulation scenarios generated by sampling are clustered to generate typical scenarios. The maximum wind power consumption based on scenario analysis is constructed as the goal, and the source-load coordination optimization model is established. The simulation results show that the proposed method can effectively improve the wind power consumption level.","PeriodicalId":411512,"journal":{"name":"2021 3rd International Conference on Smart Power & Internet Energy Systems (SPIES)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114277672","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
Study on Impact Characteristics of 35kV Tower with Conductive Concrete Based on EMTP 基于EMTP的35kV导电混凝土塔冲击特性研究
2021 3rd International Conference on Smart Power & Internet Energy Systems (SPIES) Pub Date : 2021-09-25 DOI: 10.1109/SPIES52282.2021.9633966
Ren Hongtao
{"title":"Study on Impact Characteristics of 35kV Tower with Conductive Concrete Based on EMTP","authors":"Ren Hongtao","doi":"10.1109/SPIES52282.2021.9633966","DOIUrl":"https://doi.org/10.1109/SPIES52282.2021.9633966","url":null,"abstract":"At present, conductive concrete is used as the natural grounding type of transmission line tower foundation, which has been applied in many domestic projects. The theoretical calculation and effect of resistance reduction have been verified in projects. However, the operation unit is concerned about the impact of lightning impulse current on the foundation of conductive concrete tower. At present, there is a lack of systematic theoretical calculation and simulation. Therefore, ATP-EMTP is used to calculate the thermal stability of tower foundation with conductive concrete under the action of lightning impulse current in dry and humid environment.","PeriodicalId":411512,"journal":{"name":"2021 3rd International Conference on Smart Power & Internet Energy Systems (SPIES)","volume":"92 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124621165","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
The Interaction Mechanism and Parameters Optimization of Multiple DC Filters for Second-order Harmonics in DC Microgrids 直流微电网二阶谐波多重直流滤波器的相互作用机理及参数优化
2021 3rd International Conference on Smart Power & Internet Energy Systems (SPIES) Pub Date : 2021-09-25 DOI: 10.1109/SPIES52282.2021.9633909
Hao Wang, Wentao Huang, M. Yu, N. Tai, Z. Lin
{"title":"The Interaction Mechanism and Parameters Optimization of Multiple DC Filters for Second-order Harmonics in DC Microgrids","authors":"Hao Wang, Wentao Huang, M. Yu, N. Tai, Z. Lin","doi":"10.1109/SPIES52282.2021.9633909","DOIUrl":"https://doi.org/10.1109/SPIES52282.2021.9633909","url":null,"abstract":"DC microgrid is one of the development direction of power distribution system. Affected by factors such as non-linear equipment and unbalanced load, the system is prone to second harmonic generation, which seriously threatens the stability of system operation and the safety of electrical equipment. The coordination of multiple active filters has become one of the methods for controlling second harmonics in DC microgrids. However, due to the coupling interference between the filters, the filtering performance and effect are quite different. This paper establishes the Norton equivalent grid-connected model of multiple filters. Based on the relative gain matrix theory, an analysis method of the interaction mechanism of multiple filters is proposed. The matrix relationship between the change of the filter output current and the change of the harmonic source current is constructed and the influence of DC microgrids line parameters and filter control parameters on the filtering effect is analyzed. An optimization model based on the influence factors of coupling interference is established, and NSGA-II is used to optimize the configuration of electrical and control parameters. Finally, a DC microgrid model with multiple DC filters is established in PSCAD/EMTDC to verify the rationality of the parameter analysis that affects the filtering effect in the scenario of multiple harmonic sources. The results show that the interaction between filters can be effectively suppressed and the effect of multi-filter cooperative filtering can be improved by optimizing the electrical distance and the parameters of filter controllers.","PeriodicalId":411512,"journal":{"name":"2021 3rd International Conference on Smart Power & Internet Energy Systems (SPIES)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132536709","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
Game optimization of Environmental Friendly New Offshore Wind Farm Power Collection System 新型环保型海上风电场集电系统的博弈优化
2021 3rd International Conference on Smart Power & Internet Energy Systems (SPIES) Pub Date : 2021-09-25 DOI: 10.1109/SPIES52282.2021.9633777
Ren Zixu, Song Shan, Yan Mengfei, Wu Qian, Wang Yang, Wei Shurong
{"title":"Game optimization of Environmental Friendly New Offshore Wind Farm Power Collection System","authors":"Ren Zixu, Song Shan, Yan Mengfei, Wu Qian, Wang Yang, Wei Shurong","doi":"10.1109/SPIES52282.2021.9633777","DOIUrl":"https://doi.org/10.1109/SPIES52282.2021.9633777","url":null,"abstract":"The electrical system of offshore wind farm is the key to deliver power to the onshore power grid. With the expansion of the scale of offshore wind farm, the traditional centralized offshore substation is facing the problems of large installation capacity and difficult construction. Therefore, a new technology-lightweight offshore substation, is introduced, and an improved k-medoids clustering method is proposed to establish the life cycle cost model of the new offshore wind farm collection system. In addition, considering the environmental impact, the collection system is optimized for different voltage levels, The Nash equilibrium theory of multiparty game evaluation is used to evaluate each scheme. Taking an offshore wind farm in a certain sea area as an example, the final results show that the integrated performance of the offshore wind farm collection system can be effectively improved by introducing the light substation and optimizing the voltage level.","PeriodicalId":411512,"journal":{"name":"2021 3rd International Conference on Smart Power & Internet Energy Systems (SPIES)","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131565979","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
Challenges in Power System Strength Assessment with Inverter-Based Resources 基于逆变器资源的电力系统强度评估的挑战
2021 3rd International Conference on Smart Power & Internet Energy Systems (SPIES) Pub Date : 2021-09-25 DOI: 10.1109/SPIES52282.2021.9633775
Lakna Liyanarachchi, N. Hosseinzadeh, Apel Mahmud, A. Gargoom
{"title":"Challenges in Power System Strength Assessment with Inverter-Based Resources","authors":"Lakna Liyanarachchi, N. Hosseinzadeh, Apel Mahmud, A. Gargoom","doi":"10.1109/SPIES52282.2021.9633775","DOIUrl":"https://doi.org/10.1109/SPIES52282.2021.9633775","url":null,"abstract":"Power system strength assessment in Inverter-Based Resource (IBR) dominated power systems has recently gained close attention. The development of fast power system strength assessment methodologies is vital in power system planning and operation with IBRs. Connecting IBRs to grids is a challenge as the characteristics of IBRs are different to that of synchronous generators. To assess power system strength, various system dependent metrics have been defined in the literature. This paper presents challenges in power system strength assessment with IBRs along with case studies in the literature. In the global power industry, there is a requirement for developing a new power system strength assessment framework. Since the research on this area is growing rapidly, it is expected that many advancements will be available in near future.","PeriodicalId":411512,"journal":{"name":"2021 3rd International Conference on Smart Power & Internet Energy Systems (SPIES)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129382555","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
Design and Implementation of Digital Sampling for Stability Control Device 稳定控制装置数字采样的设计与实现
2021 3rd International Conference on Smart Power & Internet Energy Systems (SPIES) Pub Date : 2021-09-25 DOI: 10.1109/SPIES52282.2021.9633931
Jilin Wang, Yimin Liu, G. Xu, Yunsong Yan, Xijian Dong, Zhukun Li
{"title":"Design and Implementation of Digital Sampling for Stability Control Device","authors":"Jilin Wang, Yimin Liu, G. Xu, Yunsong Yan, Xijian Dong, Zhukun Li","doi":"10.1109/SPIES52282.2021.9633931","DOIUrl":"https://doi.org/10.1109/SPIES52282.2021.9633931","url":null,"abstract":"The power grid security and stability control device, as cross-bay equipment, receives and processes the sampling quantity of multiple intervals at the same time in Smart Substation. In order to solve the problem of crossinterval sampling synchronization in the “Direct Sampling” mode of stability control device, a method of combining synchronization and resampling interpolation based on local time stamp based is proposed. The sampling data based on the local time stamp which supported by system auxiliary clock, resampled synchronously and linearly interpolated at resampling interval, and analyzed the linear interpolation error. Finally, Implement the digital sampling of the stability control device based on FPGA and DSP hardware platform. In order to verify the time effectiveness and feasibility of the synchronous resampling interpolation algorithm based on local time stamp proposed in this paper from the aspects of sampling accuracy and synchronization effectiveness, an experimental system is built. The results of experiment prove that the synchronous linear resampling method based on local time stamp meets the real-time and precision requirements of the stability control device in practical engineering.","PeriodicalId":411512,"journal":{"name":"2021 3rd International Conference on Smart Power & Internet Energy Systems (SPIES)","volume":"29 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133389988","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 Greedy Layer-Wise Learning Algorithm for Open-Circuit Fault Diagnosis of Grid-Connected Inverters 并网逆变器开路故障诊断的贪婪分层学习算法
2021 3rd International Conference on Smart Power & Internet Energy Systems (SPIES) Pub Date : 2021-09-25 DOI: 10.1109/SPIES52282.2021.9633925
E. Bhuiyan, S. Muyeen, S. Fahim, S. Sarker, Sajal Kumar Das
{"title":"A Greedy Layer-Wise Learning Algorithm for Open-Circuit Fault Diagnosis of Grid-Connected Inverters","authors":"E. Bhuiyan, S. Muyeen, S. Fahim, S. Sarker, Sajal Kumar Das","doi":"10.1109/SPIES52282.2021.9633925","DOIUrl":"https://doi.org/10.1109/SPIES52282.2021.9633925","url":null,"abstract":"This paper introduces a greedy layer-wise learning algorithm to diagnose open-circuit faults of grid-connected inverters. Inverters play important roles in energy conversion, especially when converting direct current to alternating current. The accurate functioning of inverters is essential for successful energy conversion. The diagnosis of inverter faults is the primary requirement to guarantee the reliability of the entire energy conversion operation. In this work, a multilayer learning algorithm based on a restricted Boltzmann machine (RBM) is presented for fault diagnosis of an inverter topology. It uses both supervised and unsupervised layer-wise learning and hierarchically extracts the features from a given data. A three-phase two-level grid-connected PV inverter test model has been operated for twenty-two conditions to assess the effectiveness of the proposed algorithm. The investigation results in diagnostic accuracy of 99.786% for twenty-two operating conditions of the inverter.","PeriodicalId":411512,"journal":{"name":"2021 3rd International Conference on Smart Power & Internet Energy Systems (SPIES)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131416486","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
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