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

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Load Forecasting Method of Integrated Energy System Based on CNN-BiLSTM with Attention Mechanism 基于关注机制的CNN-BiLSTM综合能源系统负荷预测方法
2021 3rd International Conference on Smart Power & Internet Energy Systems (SPIES) Pub Date : 2021-09-25 DOI: 10.1109/SPIES52282.2021.9633974
Yuqiang Wang, Ming Zhong, Junfei Han, Hongbin Hu, Qin Yan
{"title":"Load Forecasting Method of Integrated Energy System Based on CNN-BiLSTM with Attention Mechanism","authors":"Yuqiang Wang, Ming Zhong, Junfei Han, Hongbin Hu, Qin Yan","doi":"10.1109/SPIES52282.2021.9633974","DOIUrl":"https://doi.org/10.1109/SPIES52282.2021.9633974","url":null,"abstract":"Load forecasting of integrated energy system is an important part of economic dispatch and optimal operation of integrated energy system. In order to solve the user level load characteristics of integrated energy system with strong volatility and complex multi energy coupling, a user level load forecasting method of integrated energy system based on CNN-BiLSTM with attention mechanism is proposed in this paper. Firstly, Pearson correlation coefficient is used to analyze the time correlation and multi energy load correlation of user level load. Then, a user level load forecasting method of integrated energy system based on CBLA is proposed. Finally, taking the energy consumption data of the actual integrated energy system as an example, the prediction effect is analyzed. By comparing with other prediction methods, it proves that the proposed method can effectively improve the load forecasting accuracy.","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":"126265586","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: 4
Short-Circuit Strength Analysis of Distribution Transformer with OblongWinding by FEM 椭圆绕组配电变压器短路强度有限元分析
2021 3rd International Conference on Smart Power & Internet Energy Systems (SPIES) Pub Date : 2021-09-25 DOI: 10.1109/SPIES52282.2021.9633941
J. Lv, Geng-shan Li, Chi Zhang, Yan Li
{"title":"Short-Circuit Strength Analysis of Distribution Transformer with OblongWinding by FEM","authors":"J. Lv, Geng-shan Li, Chi Zhang, Yan Li","doi":"10.1109/SPIES52282.2021.9633941","DOIUrl":"https://doi.org/10.1109/SPIES52282.2021.9633941","url":null,"abstract":"Aiming at the problem of insufficient short-circuit strength of distribution transformer with oblong winding, the three-phase symmetrical short circuit simulation of a 630KVA oblong distribution transformer is carried out by using finite element software. The time series calculation of the short circuit impedance of the transformer and the strength check analysis of each part of the oblong winding are carried out. The short circuit force distribution law of the foil winding of the oblong transformer is obtained, which provides a good reference method for the short circuit check of the distribution transformer.","PeriodicalId":411512,"journal":{"name":"2021 3rd International Conference on Smart Power & Internet Energy Systems (SPIES)","volume":"114 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":"126035519","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
An Improved NSGA-II for Coordinated Charging of Community Electric Vehicle Charging Station 一种改进的社区电动汽车充电站协调充电NSGA-II
2021 3rd International Conference on Smart Power & Internet Energy Systems (SPIES) Pub Date : 2021-09-25 DOI: 10.1109/SPIES52282.2021.9633778
Yufei Wang, Lei Han, Chuan Cai
{"title":"An Improved NSGA-II for Coordinated Charging of Community Electric Vehicle Charging Station","authors":"Yufei Wang, Lei Han, Chuan Cai","doi":"10.1109/SPIES52282.2021.9633778","DOIUrl":"https://doi.org/10.1109/SPIES52282.2021.9633778","url":null,"abstract":"The uncontrolled electric vehicles (EVs) charging may pose a threat to the security and stable operation of the power system. In this paper, an improved nondominated sorting genetic algorithm II (NSGA-II) is developed to coordinate the EVs charging in community EV charging station. The coordinated charging scheme minimizes both the charging cost per unit electric energy and the grid load variance associated with the constraints of the EVs charging capacity and the distribution transformer capacity. To overcome the traditional NSGA-II’s deficiency of producing initial population subjected to all constraints with difficulty and uneven distribution of Pareto front, a novel NSGA-II is applied to solve the optimization model based on improved initial population generation method and modified crowded-comparison operator. The optimal compromise scheme is selected from Pareto front using technique for order performance by similarity to ideal solution (TOPSIS). The proposed EVs charging strategy is evaluated in community EV charging station based upon IEEE 33 node system. The simulation results show that the proposed algorithm has greater improvement on grid side load level and charging cost over the traditional NSGA-II and multiple objectives particle swarm optimization (MOPSO) method.","PeriodicalId":411512,"journal":{"name":"2021 3rd International Conference on Smart Power & Internet Energy Systems (SPIES)","volume":"39 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":"125079819","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
Markov Chain-based Algorithms for Building Occupancy Modeling: A Review 基于马尔可夫链的建筑占用建模算法综述
2021 3rd International Conference on Smart Power & Internet Energy Systems (SPIES) Pub Date : 2021-09-25 DOI: 10.1109/SPIES52282.2021.9633933
Chinmayi Kanthila, A. Boodi, K. Beddiar, Y. Amirat, Mohamed Benbouzid
{"title":"Markov Chain-based Algorithms for Building Occupancy Modeling: A Review","authors":"Chinmayi Kanthila, A. Boodi, K. Beddiar, Y. Amirat, Mohamed Benbouzid","doi":"10.1109/SPIES52282.2021.9633933","DOIUrl":"https://doi.org/10.1109/SPIES52282.2021.9633933","url":null,"abstract":"Smart buildings focus on providing optimal comfort for the occupant with reduced energy consumption. Better occupant prediction and behavior analysis can significantly reduce building energy usage. Human being is an important parameter in the building control process and his comfort is paramount. Therefore, occupant modeling is critical in improving building efficiency while maintaining indoor comfort. Although, there are many different algorithms developed for occupancy modeling, Markov chain and its derivative models are extensively used because of their simplicity, flexibility, and prediction efficiency. In this context, this paper proposes a state of the art review focused on Markov chain and its derivative models for occupant modeling.","PeriodicalId":411512,"journal":{"name":"2021 3rd International Conference on Smart Power & Internet Energy Systems (SPIES)","volume":"46 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":"131596381","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
Large Boost Ratio DC-DC Converter with Quasi-Z Source Network and Active Switched Inductor 具有准z源网络和有源开关电感的大升压比DC-DC变换器
2021 3rd International Conference on Smart Power & Internet Energy Systems (SPIES) Pub Date : 2021-09-25 DOI: 10.1109/SPIES52282.2021.9633855
Lumeng Bai, Jiawei Zhao, Daolian Chen
{"title":"Large Boost Ratio DC-DC Converter with Quasi-Z Source Network and Active Switched Inductor","authors":"Lumeng Bai, Jiawei Zhao, Daolian Chen","doi":"10.1109/SPIES52282.2021.9633855","DOIUrl":"https://doi.org/10.1109/SPIES52282.2021.9633855","url":null,"abstract":"The boost capability of the traditional DC-DC boost converter is limited, and the main switch device may bear higher voltage stress or current stress. A non-isolated DCDC step-up converter is proposed to meet the needs of high-gain new energy power generation. The topology combines the traditional active switched inductor with a Quasi-Z source network, which can improve the converter’s voltage gain without the limitation of duty cycle and the influence of switching stress. The steady-state characteristics and working principle are analyzed, and then the power loss is analyzed and compared with other references. The prototype circuit is designed in the power electronics laboratory, and the performance of the converter is verified under the condition of 200W with the input voltage of 20-30v and the output voltage of 200V. The validity and advantages of the theoretical analysis are verified.","PeriodicalId":411512,"journal":{"name":"2021 3rd International Conference on Smart Power & Internet Energy Systems (SPIES)","volume":"35 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":"127678361","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
Seismic Performances and Vulnerability Analysis of a 500kV Loop in DC Field 500kV直流场回路抗震性能及易损性分析
2021 3rd International Conference on Smart Power & Internet Energy Systems (SPIES) Pub Date : 2021-09-25 DOI: 10.1109/SPIES52282.2021.9633840
Yunlong Chen, Xing Chen, Q. Xie
{"title":"Seismic Performances and Vulnerability Analysis of a 500kV Loop in DC Field","authors":"Yunlong Chen, Xing Chen, Q. Xie","doi":"10.1109/SPIES52282.2021.9633840","DOIUrl":"https://doi.org/10.1109/SPIES52282.2021.9633840","url":null,"abstract":"The loop in DC field, an essential part of a converter substation, consists of several post insulators and other pillar-type equipment interconnected by rigid bus and flexible conductor. However, it has been found over the past few decades that the great slenderness of pillar-type equipment renders them extremely susceptible to damage during earthquakes. This paper is aimed to comprehensively analyze seismic performances and vulnerability of the loop in DC field and propose improvement recommendations. A 500kV loop in a DC field of a converter substation is taken as the objective to establish a refined finite element model. To obtain the seismic responses, each equipment item of the loop was excited under 30 groups of three-component earthquake records with different PGAs, as well as the loop. The result of simulating process shows that the dynamic responses are relevant to the installation positions. In general, the stress of equipment installed at the end of the loop tends to be higher than that of a single unit, while the equipment installed at the corner of the loop tends to decrease compared to a single unit. Then seismic vulnerability analysis was conducted using the multiple stripes analysis (MSA) method to get the vulnerability curves of the loop and key equipment. The results of seismic vulnerability analysis can be used to predict the failure probability of this 500kV loop under different intensities of earthquakes, and to rank the seismic risk of equipment. Additionally, the seismic vulnerability of the loop is always higher than the vulnerability of any equipment in it.","PeriodicalId":411512,"journal":{"name":"2021 3rd International Conference on Smart Power & Internet Energy Systems (SPIES)","volume":"56 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":"115176618","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
Isolated Flyback DC-DC Chopper Mode Inverters with Feedforward-Proportional Integral-Repetitive Control 具有前馈-比例积分-重复控制的隔离反激DC-DC斩波型逆变器
2021 3rd International Conference on Smart Power & Internet Energy Systems (SPIES) Pub Date : 2021-09-25 DOI: 10.1109/SPIES52282.2021.9633801
Lujia Liu, Daolian Chen, Jiahui Jiang
{"title":"Isolated Flyback DC-DC Chopper Mode Inverters with Feedforward-Proportional Integral-Repetitive Control","authors":"Lujia Liu, Daolian Chen, Jiahui Jiang","doi":"10.1109/SPIES52282.2021.9633801","DOIUrl":"https://doi.org/10.1109/SPIES52282.2021.9633801","url":null,"abstract":"This paper proposes an isolated flyback DC-DC chopper mode inverter with feedforward-proportional integral-repetitive control. The circuit topology, operating mode, control strategy, system stability, and controller design are fully studied. The proposed inverter is composed of two bi-directional isolated flyback DC-DC choppers with inputs connected in parallel and outputs connected in reverse series. Repetitive control accumulates the output voltage error of the past several output cycles to obtain the control value of the current cycle, so the corrected output voltage is obtained cycle by cycle. The designed and developed 1kW inverter prototype has excellent performances such as single-stage power conversion, high static output precision, fast dynamic responses, high quality of output waveforms, strong loading capacity, high conversion efficiency and high reliability, etc.","PeriodicalId":411512,"journal":{"name":"2021 3rd International Conference on Smart Power & Internet Energy Systems (SPIES)","volume":"51 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":"132789608","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
Sensorless Control of Packed-U-Cells in Distorted Grid 扭曲网格中填充u型单元的无传感器控制
2021 3rd International Conference on Smart Power & Internet Energy Systems (SPIES) Pub Date : 2021-09-25 DOI: 10.1109/SPIES52282.2021.9633861
Ying He, Po Li
{"title":"Sensorless Control of Packed-U-Cells in Distorted Grid","authors":"Ying He, Po Li","doi":"10.1109/SPIES52282.2021.9633861","DOIUrl":"https://doi.org/10.1109/SPIES52282.2021.9633861","url":null,"abstract":"With the trend of distorted changes in the power grid, controlling the converter to achieve high-performance access to the grid under distorted power grids has become a problem worthy of attention. This paper uses Packed-U-Cells as the research topology. In the absence of a grid voltage sensor, the harmonic detection link is used to reconstruct the accurate grid voltage signal, and the FCS MPC method is combined to realize the tracking of the reference grid current. The simulation based on MATLAB/Simulink and the experimental results based on Hardware-In-the-Loop all prove the reliability of the proposed control system.","PeriodicalId":411512,"journal":{"name":"2021 3rd International Conference on Smart Power & Internet Energy Systems (SPIES)","volume":"54 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":"128082053","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
Optimizing the Performance of the Photovoltaic System using the Micro DC-DC Converter 利用微型DC-DC变换器优化光伏系统的性能
2021 3rd International Conference on Smart Power & Internet Energy Systems (SPIES) Pub Date : 2021-09-25 DOI: 10.1109/SPIES52282.2021.9633791
Trinh Trong Chuong, N. D. Minh, B. V. Hiền, Fan Yang, T. V. Anh
{"title":"Optimizing the Performance of the Photovoltaic System using the Micro DC-DC Converter","authors":"Trinh Trong Chuong, N. D. Minh, B. V. Hiền, Fan Yang, T. V. Anh","doi":"10.1109/SPIES52282.2021.9633791","DOIUrl":"https://doi.org/10.1109/SPIES52282.2021.9633791","url":null,"abstract":"The generating capacity of photovoltaic (PV) systems depends on the operating environment and the modular topology. The previous research results showed that; with conventional types of coupling such as series (SC), parallel (PC), or series-parallel (SPC) when operating under uniform conditions, the characteristics curves do not change in shape. But when the working environment is heterogeneous due to partial shading conditions (PSC) the global maximum power point tracking (GMPPT) meet more difficulties due to having multiple extremes and easy to be trapped in local extremes (LMPP). To effectively solve this problem, the optimal algorithms for MPPT have strongly developed in recent years. This article introduces a Micro DC-DC converter incorporating an innovative MPPT solution for PV systems under PSC. The research results in the article have shown that: the proposed solution not only has a simple configuration, compact structure but also has high convergence speed and outstanding performance.","PeriodicalId":411512,"journal":{"name":"2021 3rd International Conference on Smart Power & Internet Energy Systems (SPIES)","volume":"22 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133107264","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
Stability Analysis of Microgrid under Inductive Network Impedance 感应网络阻抗下微电网稳定性分析
2021 3rd International Conference on Smart Power & Internet Energy Systems (SPIES) Pub Date : 2021-09-25 DOI: 10.1109/SPIES52282.2021.9633864
Gao Yu, Fan Xin, Z. Jin, L. Jian
{"title":"Stability Analysis of Microgrid under Inductive Network Impedance","authors":"Gao Yu, Fan Xin, Z. Jin, L. Jian","doi":"10.1109/SPIES52282.2021.9633864","DOIUrl":"https://doi.org/10.1109/SPIES52282.2021.9633864","url":null,"abstract":"Due to a certain degree of inductive impedance the power grid, it can not be regarded as an ideal voltage The impedance will affect the control performance of the inverter, and even lead to the instability of the system, which makes the output current of the inverter can not meet the network access standard. The existence of local load will also affect the analysis of system stability to a certain extent. Therefore, the control model of PV grid connected inverter considering local load and grid impedance is established, including grid impedance and load at common coupling point. The stability margin of the system is described more accurately by impedance analysis method. Based on this model, the tuning of system control parameters under different grid impedances is studied to improve the stability of photovoltaic grid connected control system. The effectiveness of parameter tuning is verified by simulation.","PeriodicalId":411512,"journal":{"name":"2021 3rd International Conference on Smart Power & Internet Energy Systems (SPIES)","volume":"205 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":"133828685","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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