Pub Date : 2021-05-28DOI: 10.1109/CIEEC50170.2021.9510517
Ruyue Ma, Yubin Wang, Fan Wang, Shenhong Wang
In order to solve the system instability issue caused by a large number of constant power loads in DC microgrid, two compensation methods, active damping compensation and virtual negative inductor compensation, are introduced to improve the stability of DC microgrid in this paper. The small-signal mathematical model of the DC microgrid can be established by designing the Boost converter with voltage and current double closed-loop and the DC-DC converter, which can be regarded as a constant power load. Based on the principle of system dominant pole distribution, the Lyapunov eigenvalue method is used to estimate the power boundary of the DC microgrid. To improve the system stability, active damping compensation method is adopted directly in the control loop of source, and in contrast, a virtual negative inductor method is adopted on the source converter by droop control method, the principle and realization of two compensation methods are right after studied in detail. The power boundary values obtained before and after different compensation methods are compared. Finally, the effectiveness of the active damping compensation and virtual negative inductor compensation methods to improve the stability of DC microgrid is verified by Matlab/Simulink simulation.
{"title":"Stability Analysis and Compensation Methods to Improve Stability for DC Microgrid with Constant Power Loads","authors":"Ruyue Ma, Yubin Wang, Fan Wang, Shenhong Wang","doi":"10.1109/CIEEC50170.2021.9510517","DOIUrl":"https://doi.org/10.1109/CIEEC50170.2021.9510517","url":null,"abstract":"In order to solve the system instability issue caused by a large number of constant power loads in DC microgrid, two compensation methods, active damping compensation and virtual negative inductor compensation, are introduced to improve the stability of DC microgrid in this paper. The small-signal mathematical model of the DC microgrid can be established by designing the Boost converter with voltage and current double closed-loop and the DC-DC converter, which can be regarded as a constant power load. Based on the principle of system dominant pole distribution, the Lyapunov eigenvalue method is used to estimate the power boundary of the DC microgrid. To improve the system stability, active damping compensation method is adopted directly in the control loop of source, and in contrast, a virtual negative inductor method is adopted on the source converter by droop control method, the principle and realization of two compensation methods are right after studied in detail. The power boundary values obtained before and after different compensation methods are compared. Finally, the effectiveness of the active damping compensation and virtual negative inductor compensation methods to improve the stability of DC microgrid is verified by Matlab/Simulink simulation.","PeriodicalId":110429,"journal":{"name":"2021 IEEE 4th International Electrical and Energy Conference (CIEEC)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134018541","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 : 2021-05-28DOI: 10.1109/CIEEC50170.2021.9510969
Yifan Wang, Jinlong Gong, J. Ye, Xun Zhou, Liang Zhu, Tao Ma
With the advantages of high sensitivity and non-intrusiveness, HFCT PD detection systems are implemented in order to monitor incipient faults of power cables. This paper introduces a laboratory calibration method for HFCT PD detection systems based on a Gauss pulse signal. In order to modify practical PD signal at 1MHz~30MHz frequency band, equivalent Gauss pulse signal with certain rise time is applied. The method overcomes the drawback of sensitivity verification method recommended by IEC 62478 in traceability. All the standard equipment applied is frequently-used device in electrical laboratory. Parameters of the calibration work include frequency band, amplitude linearity, transfer impedance and detection sensitivity. By analyzing the data of four systems, the calibration provides reasonable criteria in quality verification of HFCT PD detection systems.
{"title":"Laboratory Calibration of HFCT Partial Discharge Detection Systems","authors":"Yifan Wang, Jinlong Gong, J. Ye, Xun Zhou, Liang Zhu, Tao Ma","doi":"10.1109/CIEEC50170.2021.9510969","DOIUrl":"https://doi.org/10.1109/CIEEC50170.2021.9510969","url":null,"abstract":"With the advantages of high sensitivity and non-intrusiveness, HFCT PD detection systems are implemented in order to monitor incipient faults of power cables. This paper introduces a laboratory calibration method for HFCT PD detection systems based on a Gauss pulse signal. In order to modify practical PD signal at 1MHz~30MHz frequency band, equivalent Gauss pulse signal with certain rise time is applied. The method overcomes the drawback of sensitivity verification method recommended by IEC 62478 in traceability. All the standard equipment applied is frequently-used device in electrical laboratory. Parameters of the calibration work include frequency band, amplitude linearity, transfer impedance and detection sensitivity. By analyzing the data of four systems, the calibration provides reasonable criteria in quality verification of HFCT PD detection systems.","PeriodicalId":110429,"journal":{"name":"2021 IEEE 4th International Electrical and Energy Conference (CIEEC)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134269824","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}
Liquid hydrogen provides a prospective solution for the on-board hydrogen storage and supply system of heavy-duty fuel cell vehicles to carry more hydrogen in a smaller volume. The research group develops 32-ton and 49-ton heavy-duty vehicles equipped with fuel cell systems, batteries, liquid hydrogen storage and supply systems, and independent-drive electric wheels. In this study, the two heavy-duty vehicles’ powertrain dynamic model based on experimental data is established. The maximum cruising ranges of two vehicles under constant-speed conditions and China-worldwide transient vehicle cycles (C-WTVCs) are then analyzed, respectively. The dynamic programming algorithm is adopted to find the optimal power distribution between the fuel cell system and the battery. Simulation results show that the 40-km/h cruising range of the 32-ton and 49-ton vehicles can be up to 1283 km and 1717 km with 62.0 kg and 112.2 kg hydrogen depleted completely and battery state of charge sustained. Dynamic programming results show that two vehicles’ cruising range can be 615.3 km and 768.7 km under consecutive C-WTVCs.
{"title":"The Cruising Range Analysis of Heavy-duty Fuel Cell Vehicles with Liquid Hydrogen Storage and Supply Systems Based on Dynamic Programming","authors":"Jiayi Hu, Jianqiu Li, Zunyan Hu, Liangfei Xu, M. Ouyang, Zhidong Qin","doi":"10.1109/CIEEC50170.2021.9510507","DOIUrl":"https://doi.org/10.1109/CIEEC50170.2021.9510507","url":null,"abstract":"Liquid hydrogen provides a prospective solution for the on-board hydrogen storage and supply system of heavy-duty fuel cell vehicles to carry more hydrogen in a smaller volume. The research group develops 32-ton and 49-ton heavy-duty vehicles equipped with fuel cell systems, batteries, liquid hydrogen storage and supply systems, and independent-drive electric wheels. In this study, the two heavy-duty vehicles’ powertrain dynamic model based on experimental data is established. The maximum cruising ranges of two vehicles under constant-speed conditions and China-worldwide transient vehicle cycles (C-WTVCs) are then analyzed, respectively. The dynamic programming algorithm is adopted to find the optimal power distribution between the fuel cell system and the battery. Simulation results show that the 40-km/h cruising range of the 32-ton and 49-ton vehicles can be up to 1283 km and 1717 km with 62.0 kg and 112.2 kg hydrogen depleted completely and battery state of charge sustained. Dynamic programming results show that two vehicles’ cruising range can be 615.3 km and 768.7 km under consecutive C-WTVCs.","PeriodicalId":110429,"journal":{"name":"2021 IEEE 4th International Electrical and Energy Conference (CIEEC)","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134337856","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}
The distribution network serves as the last link directly connected to users. The power quality directly affects the user's power experience. Therefore, it is particularly necessary to keep the distribution network safe. This paper mainly studies in the case of a disconnection fault, when the reactive power optimization cannot make the voltage meet the requirements, based on the reactive power compensation, with the minimum deviation of the monitored central node voltage as the goal, a network reconstruction method is proposed. The distribution network is reconstructed, and the actual topology of a certain area is taken as an example to verify the effectiveness of the proposed method.
{"title":"A method of power distribution network fault voltage restoration based on grid reconfiguration","authors":"Hui Xia, Peng Li, Jianchun Wei, Yihang Gao, Jiahao Wang, Jianyi Li","doi":"10.1109/CIEEC50170.2021.9510790","DOIUrl":"https://doi.org/10.1109/CIEEC50170.2021.9510790","url":null,"abstract":"The distribution network serves as the last link directly connected to users. The power quality directly affects the user's power experience. Therefore, it is particularly necessary to keep the distribution network safe. This paper mainly studies in the case of a disconnection fault, when the reactive power optimization cannot make the voltage meet the requirements, based on the reactive power compensation, with the minimum deviation of the monitored central node voltage as the goal, a network reconstruction method is proposed. The distribution network is reconstructed, and the actual topology of a certain area is taken as an example to verify the effectiveness of the proposed method.","PeriodicalId":110429,"journal":{"name":"2021 IEEE 4th International Electrical and Energy Conference (CIEEC)","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131478106","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}
The 30 kVA/50 kV power frequency discharge system was used to trigger the trips (flashover processes) of Aluminum Conductor Steel Reinforced (ACSR) powerline segments (LGJ-400/35) in a 10.0 cm air gap under a wood crib fire (comprehensive fire source), and the characteristics and mechanisms of such line-line air gap (conductor gap) were discussed. The results show that under the wood crib fire, the breakdown voltage of conductor gap is obviously lower than that under pure air. Under the same fire source power, the breakdown voltages of different flame zones are ordered as: pure air (70.0 kV) > intermittent flame zone (top, 32.0 kV-52.4 kV) > continuous flame zone 2 (upper, 21.0 kV-28.0 kV) > continuous flame zone 1 (bottom, 14.4 kV-24.4 kV). In the same flame zone, the breakdown voltage decreases from 52.4 kV to 14.4 kV (25.1 %-79.4% reductions to those in pure air) with the increase of fire source powers (1-3 wood cribs, 121.87 kW-323.66 kW). For the single wood crib fire source, the maximum leakage currents (within the period before the conductor gap breakdown) in the flame intermittent zone, the flame continuous zones 1 and 2 are less than 1.00 mA and 2.54 mA, respectively. Many soot particles and ashes will be generated when wood crib and other ground surface vegetation fire sources burn. They will fill the gaps between power lines and be polarized by the in-service line inducing electric field. Then distorted electric field will be formed between the two polarization ends and the lines. The opposite movements and interactive convections of a large number of electrons, ions and smoke particles in fire plumes are driven to form a discharge streamer channel and cause line-line gap breakdown at proper moments.
{"title":"Characteristics and Mechanism of Line-Line Gap Breakdowns Induced by Wood Crib Fires","authors":"Yaopeng Zhao, Fei You, Jixiang Xu, Zonglin Fu, Kai Shui, Siyi Chen","doi":"10.1109/cieec50170.2021.9510211","DOIUrl":"https://doi.org/10.1109/cieec50170.2021.9510211","url":null,"abstract":"The 30 kVA/50 kV power frequency discharge system was used to trigger the trips (flashover processes) of Aluminum Conductor Steel Reinforced (ACSR) powerline segments (LGJ-400/35) in a 10.0 cm air gap under a wood crib fire (comprehensive fire source), and the characteristics and mechanisms of such line-line air gap (conductor gap) were discussed. The results show that under the wood crib fire, the breakdown voltage of conductor gap is obviously lower than that under pure air. Under the same fire source power, the breakdown voltages of different flame zones are ordered as: pure air (70.0 kV) > intermittent flame zone (top, 32.0 kV-52.4 kV) > continuous flame zone 2 (upper, 21.0 kV-28.0 kV) > continuous flame zone 1 (bottom, 14.4 kV-24.4 kV). In the same flame zone, the breakdown voltage decreases from 52.4 kV to 14.4 kV (25.1 %-79.4% reductions to those in pure air) with the increase of fire source powers (1-3 wood cribs, 121.87 kW-323.66 kW). For the single wood crib fire source, the maximum leakage currents (within the period before the conductor gap breakdown) in the flame intermittent zone, the flame continuous zones 1 and 2 are less than 1.00 mA and 2.54 mA, respectively. Many soot particles and ashes will be generated when wood crib and other ground surface vegetation fire sources burn. They will fill the gaps between power lines and be polarized by the in-service line inducing electric field. Then distorted electric field will be formed between the two polarization ends and the lines. The opposite movements and interactive convections of a large number of electrons, ions and smoke particles in fire plumes are driven to form a discharge streamer channel and cause line-line gap breakdown at proper moments.","PeriodicalId":110429,"journal":{"name":"2021 IEEE 4th International Electrical and Energy Conference (CIEEC)","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131562025","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}
With the quick development of smart cities, data mining, feature extraction, identification and classification of different energy user groups are widely used to adjust the construction of distribution networks and power supply service strategies. This paper studies the principles and steps of the spectral clustering algorithm, considering the similarity measurement of load based on the load numerical characteristics, load curves volatility and trend characteristics. Then, the spectral clustering based on the proposed similarity measurement is performed on the substation-level power load data, and some typical load curves are categorized and analyzed. The results show that the composition of typical load curves of different substations can describe the composition of energy users in each substation. Besides, the spectral clustering method shows better performance in calculation speed, effectiveness and stability compared with k-means clustering,
{"title":"Modeling and Analysis for Power Substation Load Data based on Spectral Clustering","authors":"Minlei Huang, Xueling Zheng, Zhige Liao, Xiaoying Huang","doi":"10.1109/CIEEC50170.2021.9510616","DOIUrl":"https://doi.org/10.1109/CIEEC50170.2021.9510616","url":null,"abstract":"With the quick development of smart cities, data mining, feature extraction, identification and classification of different energy user groups are widely used to adjust the construction of distribution networks and power supply service strategies. This paper studies the principles and steps of the spectral clustering algorithm, considering the similarity measurement of load based on the load numerical characteristics, load curves volatility and trend characteristics. Then, the spectral clustering based on the proposed similarity measurement is performed on the substation-level power load data, and some typical load curves are categorized and analyzed. The results show that the composition of typical load curves of different substations can describe the composition of energy users in each substation. Besides, the spectral clustering method shows better performance in calculation speed, effectiveness and stability compared with k-means clustering,","PeriodicalId":110429,"journal":{"name":"2021 IEEE 4th International Electrical and Energy Conference (CIEEC)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131624830","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 : 2021-05-28DOI: 10.1109/CIEEC50170.2021.9510781
Qian Yuan, R. Han, Ruilin Cui, Wanying Zhu, Yueqing Wang, Bingyan Yang, J. Ouyang
Argon helicon plasma is typically associated with a blue core, namely a radially localized central area of strong ion light emission. An experimental study was carried out to study the morphology and radiation characteristics of blue core in argon helicon plasma discharge. Experiments were carried out with two technics including Local Optical Emission Spectroscopy (LOES) and time-integrated images with digital camera. In particular, the helicon mode, characterized by the intense blue core plasma, can be achieved by adjusting the input parameters such as RF power, magnetic field, and operating pressure. Analysis of a prominent characteristic line (ArII 481.0 nm) of blue core indicates that the intensity of ion line increases linearly with the RF power, magnetic field, or operating pressure in certain intervals (when 1000 W< P< 2000 W or 250 Gauss < B0 < 500 Gauss or 0.1 Pa< p< 1.0 Pa). Apart from this, blue core width increases with the power while decreases with an increase in magnetic field or operating pressure. In order to further understand the formation of the blue core, parameter regarding electron temperature is adopted to reveal that the increase of the intensity of ion line depends strongly on the increase of electron temperature.
{"title":"Morphology and Radiation Characteristics of Blue Core in Argon Helicon Plasma Discharge","authors":"Qian Yuan, R. Han, Ruilin Cui, Wanying Zhu, Yueqing Wang, Bingyan Yang, J. Ouyang","doi":"10.1109/CIEEC50170.2021.9510781","DOIUrl":"https://doi.org/10.1109/CIEEC50170.2021.9510781","url":null,"abstract":"Argon helicon plasma is typically associated with a blue core, namely a radially localized central area of strong ion light emission. An experimental study was carried out to study the morphology and radiation characteristics of blue core in argon helicon plasma discharge. Experiments were carried out with two technics including Local Optical Emission Spectroscopy (LOES) and time-integrated images with digital camera. In particular, the helicon mode, characterized by the intense blue core plasma, can be achieved by adjusting the input parameters such as RF power, magnetic field, and operating pressure. Analysis of a prominent characteristic line (ArII 481.0 nm) of blue core indicates that the intensity of ion line increases linearly with the RF power, magnetic field, or operating pressure in certain intervals (when 1000 W< P< 2000 W or 250 Gauss < B0 < 500 Gauss or 0.1 Pa< p< 1.0 Pa). Apart from this, blue core width increases with the power while decreases with an increase in magnetic field or operating pressure. In order to further understand the formation of the blue core, parameter regarding electron temperature is adopted to reveal that the increase of the intensity of ion line depends strongly on the increase of electron temperature.","PeriodicalId":110429,"journal":{"name":"2021 IEEE 4th International Electrical and Energy Conference (CIEEC)","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131742285","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 : 2021-05-28DOI: 10.1109/CIEEC50170.2021.9510783
Jinhao Wang, Yuan Ren, Chaoying Yang, Xiao Chang, Shengwen Li
As the types of energy are getting more plentiful and the scale of energy is increasing, the distributed energy access and consumption method represented by micro-grid is increasingly growing in voltage level. This article presents an idea of a multi-port energy router based on cascade framework in order to decrease the extra equipment input and redundancy brought by the voltage raising of micro-grid. The router is composed of multiple cascaded DC/DC transformers; it has one input port and numbers of output ports. The input end is facing to micro-grid system with high voltage level, the output end is facing to multiple load demands, and it will provide flexible power output in accordance with power demand of load sides. In addition, in order to realize the coordination control of different output ends, this article puts forward the method of distributed power control. This method could realize independent power control of each port, and receive coordination orders from dispatch center; Which could greatly increase the controllability of micro-grid. In the end, a three-port cascaded energy router that is built based on SIMULINK proves the feasibility of scenario presented in this article and the effectiveness of distributed control.
{"title":"The Research of Multi-port Energy Router Based on Cascade Architecture","authors":"Jinhao Wang, Yuan Ren, Chaoying Yang, Xiao Chang, Shengwen Li","doi":"10.1109/CIEEC50170.2021.9510783","DOIUrl":"https://doi.org/10.1109/CIEEC50170.2021.9510783","url":null,"abstract":"As the types of energy are getting more plentiful and the scale of energy is increasing, the distributed energy access and consumption method represented by micro-grid is increasingly growing in voltage level. This article presents an idea of a multi-port energy router based on cascade framework in order to decrease the extra equipment input and redundancy brought by the voltage raising of micro-grid. The router is composed of multiple cascaded DC/DC transformers; it has one input port and numbers of output ports. The input end is facing to micro-grid system with high voltage level, the output end is facing to multiple load demands, and it will provide flexible power output in accordance with power demand of load sides. In addition, in order to realize the coordination control of different output ends, this article puts forward the method of distributed power control. This method could realize independent power control of each port, and receive coordination orders from dispatch center; Which could greatly increase the controllability of micro-grid. In the end, a three-port cascaded energy router that is built based on SIMULINK proves the feasibility of scenario presented in this article and the effectiveness of distributed control.","PeriodicalId":110429,"journal":{"name":"2021 IEEE 4th International Electrical and Energy Conference (CIEEC)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131833640","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 : 2021-05-28DOI: 10.1109/CIEEC50170.2021.9510988
Nan Xiong, Pengyu Yang, Haiqing Li, Qinghai Wang
In the integrated energy system (IES), distributed energy, flexible load and electric vehicle are widely involved in the energy production, consumption and other aspects of the power system, which makes it an important issue to optimize the deployment of energy management application. Therefore, this paper proposes cost-based application placement method using computing resource containers based on Docker technology, which can effectively reduce the deployment cost of application placement in IES. We first characterize the task components and their connections in energy management application. According to the architecture of physical machine using Docker, we construct the operation model including computation model and communication model Besides, to evaluate the application placement schemes, we propose a cost-based evaluation metrics considering the cost caused by task execution and data transmission. Simulation verifies the rationality and effectiveness of our proposed method.
{"title":"Cost-Based Application Placement Optimization for Integrated Energy System using Docker","authors":"Nan Xiong, Pengyu Yang, Haiqing Li, Qinghai Wang","doi":"10.1109/CIEEC50170.2021.9510988","DOIUrl":"https://doi.org/10.1109/CIEEC50170.2021.9510988","url":null,"abstract":"In the integrated energy system (IES), distributed energy, flexible load and electric vehicle are widely involved in the energy production, consumption and other aspects of the power system, which makes it an important issue to optimize the deployment of energy management application. Therefore, this paper proposes cost-based application placement method using computing resource containers based on Docker technology, which can effectively reduce the deployment cost of application placement in IES. We first characterize the task components and their connections in energy management application. According to the architecture of physical machine using Docker, we construct the operation model including computation model and communication model Besides, to evaluate the application placement schemes, we propose a cost-based evaluation metrics considering the cost caused by task execution and data transmission. Simulation verifies the rationality and effectiveness of our proposed method.","PeriodicalId":110429,"journal":{"name":"2021 IEEE 4th International Electrical and Energy Conference (CIEEC)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127564768","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}
In the environment of the deregulated electricity retail market, credit management issues for electricity retail companies have become increasingly prominent. Based on the actual situation of electricity market transactions, this paper introduces a credit evaluation system composed of internal and external evaluation indicators and realizes the application of the evaluation system. This paper provides a reference for constructing a credit evaluation system for electricity market entities.
{"title":"Research on Credit Evaluation System of Electricity Retail Companies","authors":"Zhiwei Ying, Tao Yu, Yupeng Huang, Hanfu Wang, Dunnan Liu, Heping Jia","doi":"10.1109/CIEEC50170.2021.9510861","DOIUrl":"https://doi.org/10.1109/CIEEC50170.2021.9510861","url":null,"abstract":"In the environment of the deregulated electricity retail market, credit management issues for electricity retail companies have become increasingly prominent. Based on the actual situation of electricity market transactions, this paper introduces a credit evaluation system composed of internal and external evaluation indicators and realizes the application of the evaluation system. This paper provides a reference for constructing a credit evaluation system for electricity market entities.","PeriodicalId":110429,"journal":{"name":"2021 IEEE 4th International Electrical and Energy Conference (CIEEC)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125198874","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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