Pub Date : 2022-12-23DOI: 10.1109/ICPES56491.2022.10073112
Zhukui Tan, Bin Liu, Junwei Zhang, Yong Zhu, Zhaoting Ren
An essential part of lithium-ion battery management is the assessment of state of health (SOH), which is the key to accurate estimation of the state of charge and the remaining useful life. The majority of recent studies on SOH evaluation make use of the whole charging or discharging curves, first mining the variables with a strong correlation to SOH, and then building the projection to SOH using data-driven methods. However, this kind of method is difficult to achieve rapid assessment of SOH and the generalization of the mined features is poor. Therefore, we propose a rapid SOH assessment method based on the segment of charge/discharge voltage curve by using the powerful feature extraction ability of 1D-CNN. The results on the Oxford and NASA datasets demonstrate that the proposed method has a small prediction error and better generalization performance. In particular, the absolute error in SOH assessment for the Oxford dataset is below 5% with only 10s of voltage data.
{"title":"Rapid Assessment of Lithium-ion Batteries' SOH Based on the Segment of Charge/Discharge Voltage Curve Using Convolutional Neural Networks","authors":"Zhukui Tan, Bin Liu, Junwei Zhang, Yong Zhu, Zhaoting Ren","doi":"10.1109/ICPES56491.2022.10073112","DOIUrl":"https://doi.org/10.1109/ICPES56491.2022.10073112","url":null,"abstract":"An essential part of lithium-ion battery management is the assessment of state of health (SOH), which is the key to accurate estimation of the state of charge and the remaining useful life. The majority of recent studies on SOH evaluation make use of the whole charging or discharging curves, first mining the variables with a strong correlation to SOH, and then building the projection to SOH using data-driven methods. However, this kind of method is difficult to achieve rapid assessment of SOH and the generalization of the mined features is poor. Therefore, we propose a rapid SOH assessment method based on the segment of charge/discharge voltage curve by using the powerful feature extraction ability of 1D-CNN. The results on the Oxford and NASA datasets demonstrate that the proposed method has a small prediction error and better generalization performance. In particular, the absolute error in SOH assessment for the Oxford dataset is below 5% with only 10s of voltage data.","PeriodicalId":425438,"journal":{"name":"2022 12th International Conference on Power and Energy Systems (ICPES)","volume":"55 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116571082","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 : 2022-12-23DOI: 10.1109/ICPES56491.2022.10072598
Chunxiao Liu, Quan Yuan, Wei Wang, Yinsheng Su, Xiangyang Su, Ziqiang Wang
With the continuous development of the power system, the multi regional resource optimization resource allocation in large scale and large regions has considerable prospects. In this paper, a framework of regional optimal dispatching model is proposed. Based on the uncertainty of new energy, a two-stage robust optimization model is proposed. The dual theory and column and constraint generation algorithm are used to solve the two-stage robust optimization model. A multi region decomposition and coordination mechanism based on alternating direction method of multipliers (ADMM) framework is proposed, and an engineering ADMM algorithm framework is given. The simulation analysis proves the feasibility of the proposed model.
{"title":"Multi-region Decomposition-Coordination Robust Optimization Model Considering New Energy Uncertainty","authors":"Chunxiao Liu, Quan Yuan, Wei Wang, Yinsheng Su, Xiangyang Su, Ziqiang Wang","doi":"10.1109/ICPES56491.2022.10072598","DOIUrl":"https://doi.org/10.1109/ICPES56491.2022.10072598","url":null,"abstract":"With the continuous development of the power system, the multi regional resource optimization resource allocation in large scale and large regions has considerable prospects. In this paper, a framework of regional optimal dispatching model is proposed. Based on the uncertainty of new energy, a two-stage robust optimization model is proposed. The dual theory and column and constraint generation algorithm are used to solve the two-stage robust optimization model. A multi region decomposition and coordination mechanism based on alternating direction method of multipliers (ADMM) framework is proposed, and an engineering ADMM algorithm framework is given. The simulation analysis proves the feasibility of the proposed model.","PeriodicalId":425438,"journal":{"name":"2022 12th International Conference on Power and Energy Systems (ICPES)","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121913033","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 : 2022-12-23DOI: 10.1109/ICPES56491.2022.10073299
Yi-wei Feng, W. Jia
Stealth attacks and parameter uncertainties are becoming a compelling issue on load frequency control (LFC), directly affecting the resilience of the isolated microgrid. Due to the randomness of renewable power generation and the vulnerability increased by the stealth attack on the system, a resilient $H_{infty}$ LFC method is presented to endure and quickly recovery system stability during disturbances. Based on the LFC model, a fake data injection (FDI) attack model is considered in the problem formulation to make the system robust against external attacks. To protect against the parameter uncertainties and FDI attack in the isolated microgrid, with the help of the least square rational function approximation method and the Gerschgorin circle theorem, $H_{infty}$ controller is employed, the stability of the controller is proved by LMI inequality, and the existence condition of the system stability is also given. And their robustness characteristics are compared through various performance indices. The proposed control schemes are validated through a real-time software synchronisation environment.
{"title":"Resilient $H_{infty}$ Load Frequency Control for Uncertain Isolated Microgrid under Stealth Attack","authors":"Yi-wei Feng, W. Jia","doi":"10.1109/ICPES56491.2022.10073299","DOIUrl":"https://doi.org/10.1109/ICPES56491.2022.10073299","url":null,"abstract":"Stealth attacks and parameter uncertainties are becoming a compelling issue on load frequency control (LFC), directly affecting the resilience of the isolated microgrid. Due to the randomness of renewable power generation and the vulnerability increased by the stealth attack on the system, a resilient $H_{infty}$ LFC method is presented to endure and quickly recovery system stability during disturbances. Based on the LFC model, a fake data injection (FDI) attack model is considered in the problem formulation to make the system robust against external attacks. To protect against the parameter uncertainties and FDI attack in the isolated microgrid, with the help of the least square rational function approximation method and the Gerschgorin circle theorem, $H_{infty}$ controller is employed, the stability of the controller is proved by LMI inequality, and the existence condition of the system stability is also given. And their robustness characteristics are compared through various performance indices. The proposed control schemes are validated through a real-time software synchronisation environment.","PeriodicalId":425438,"journal":{"name":"2022 12th International Conference on Power and Energy Systems (ICPES)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125952356","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 : 2022-12-23DOI: 10.1109/ICPES56491.2022.10072969
Z. Gang, H. Sen, Wei Peicai, Ding Weifeng, Huang Jinling, Hou Jun, He Ningan
In order to improve the safety of the tension replacement of the corroded overhead ground wire in the spanning gear, avoid the failure of the sealing wire rope and make the spanning facility damaged after the broken wire of the corroded overhead ground wire. A crossover protection device is designed by analyzing the reasons for the failure of the sealing rope in this paper. Before the tension replacement, install multiple protective devices while arranging the sealing rope above the facility to be crossed. The sliding system designed by the protective device does not affect the traction and sliding during the replacement of the corroded overhead ground wire, and can break the corroded overhead ground wire. Afterwards, it carries its breaking impact load, and transmits it through the sliding system, so as to prevent the sealing rope from being directly rubbed and cut and broken and fail, and ensure the safety of the facilities being crossed. The protective device has been verified by the actual engineering on site and can meet the needs of on-site use. The design of the protection device provides a feasible solution for the tension replacement of the corroded overhead ground wire for the broken wire protection, and has important reference significance for the future similar operations.
{"title":"A Design of Crossover Protection Device for Corroded Overhead Ground Wire Tension Replacement","authors":"Z. Gang, H. Sen, Wei Peicai, Ding Weifeng, Huang Jinling, Hou Jun, He Ningan","doi":"10.1109/ICPES56491.2022.10072969","DOIUrl":"https://doi.org/10.1109/ICPES56491.2022.10072969","url":null,"abstract":"In order to improve the safety of the tension replacement of the corroded overhead ground wire in the spanning gear, avoid the failure of the sealing wire rope and make the spanning facility damaged after the broken wire of the corroded overhead ground wire. A crossover protection device is designed by analyzing the reasons for the failure of the sealing rope in this paper. Before the tension replacement, install multiple protective devices while arranging the sealing rope above the facility to be crossed. The sliding system designed by the protective device does not affect the traction and sliding during the replacement of the corroded overhead ground wire, and can break the corroded overhead ground wire. Afterwards, it carries its breaking impact load, and transmits it through the sliding system, so as to prevent the sealing rope from being directly rubbed and cut and broken and fail, and ensure the safety of the facilities being crossed. The protective device has been verified by the actual engineering on site and can meet the needs of on-site use. The design of the protection device provides a feasible solution for the tension replacement of the corroded overhead ground wire for the broken wire protection, and has important reference significance for the future similar operations.","PeriodicalId":425438,"journal":{"name":"2022 12th International Conference on Power and Energy Systems (ICPES)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124893095","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}
UHVDC has developed rapidly in recent years, due to its large transmission power, large disturbances such as blocking and commutation failure will have a huge impact on the reactive power balance of the sending power grid, resulting in large-scale new energy off-grid. This paper establishes an improved BP neural network model based on an adaptive genetic algorithm for transient overvoltage evaluation, and takes a UHVDC sending power grid in northern China as an example to explore the nonlinear relationship between transient overvoltage and system operation state and verify the effectiveness of the method.
{"title":"Transient Voltage Stability Assessment Method for the UHVDC Power Grid with High Proportion of New Energy Based on Artificial Intelligence","authors":"Wei Hu, Rongfu Sun, Yun-tao Sun, Ran Ding, Yiming Yao, Kexi Qian","doi":"10.1109/ICPES56491.2022.10073267","DOIUrl":"https://doi.org/10.1109/ICPES56491.2022.10073267","url":null,"abstract":"UHVDC has developed rapidly in recent years, due to its large transmission power, large disturbances such as blocking and commutation failure will have a huge impact on the reactive power balance of the sending power grid, resulting in large-scale new energy off-grid. This paper establishes an improved BP neural network model based on an adaptive genetic algorithm for transient overvoltage evaluation, and takes a UHVDC sending power grid in northern China as an example to explore the nonlinear relationship between transient overvoltage and system operation state and verify the effectiveness of the method.","PeriodicalId":425438,"journal":{"name":"2022 12th International Conference on Power and Energy Systems (ICPES)","volume":"214 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129281933","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 : 2022-12-23DOI: 10.1109/ICPES56491.2022.10072970
Yifan Sun, Lin Wang, Yao Jiang, Ziyun Xu, Wenbin Xu
In order to reduce the risks of high investment cost, centralized operation and opacity of centralized investment energy storage equipment, this paper proposes a peer-to-peer control and trade method which can realize decentralized peer-to-peer sharing for distributed energy storage equipment based on the blockchain technology. Then, the optimal optimization method of shared energy storage users considering demand response is proposed. Finally, this method is applied to the typical daily load in different seasons and solved by CPLEX. The results show that the optimal optimization method can help users smooth load curve by considering demand response.
{"title":"Optimization Configuration of Shared Energy Storage Users Considering Demand Response Based on Blockchain","authors":"Yifan Sun, Lin Wang, Yao Jiang, Ziyun Xu, Wenbin Xu","doi":"10.1109/ICPES56491.2022.10072970","DOIUrl":"https://doi.org/10.1109/ICPES56491.2022.10072970","url":null,"abstract":"In order to reduce the risks of high investment cost, centralized operation and opacity of centralized investment energy storage equipment, this paper proposes a peer-to-peer control and trade method which can realize decentralized peer-to-peer sharing for distributed energy storage equipment based on the blockchain technology. Then, the optimal optimization method of shared energy storage users considering demand response is proposed. Finally, this method is applied to the typical daily load in different seasons and solved by CPLEX. The results show that the optimal optimization method can help users smooth load curve by considering demand response.","PeriodicalId":425438,"journal":{"name":"2022 12th International Conference on Power and Energy Systems (ICPES)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121298883","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 : 2022-12-23DOI: 10.1109/ICPES56491.2022.10073311
Shaofeng Cui, Lin Mou, W. Li, Junjiao Wang, Gang Li, Yuzhen Li, Xiaojun Yan, Chengguang Liu
Large scale distributed photovoltaic(DPV) integration will bring new challenges to dispatching due to its uncertainty, and further increase the regulating capacity requirement of power system. As a result, a robust evaluating approach of DPV hosting capacity in uncertain environment is proposed. Based on the relationship between DPV hosting capacity and its conditional value at risk(CVaR), a robust optimization model is constructed, which considering the probability distribution characteristics of DPV. The base point and regulating capacity of automatic generation control(AGC) units are coordinated optimized to accurately evaluate the DPV hosting capacity The original model is transformed into a deterministic linear programming problem using piecewise linear approximation and uncertain variables eliminating. The effectiveness of the proposed approach is verified through a 6-bus system.
{"title":"Robust Evaluating Approach of Distributed Photovoltaic Hosting Capacity in Uncertain Environment","authors":"Shaofeng Cui, Lin Mou, W. Li, Junjiao Wang, Gang Li, Yuzhen Li, Xiaojun Yan, Chengguang Liu","doi":"10.1109/ICPES56491.2022.10073311","DOIUrl":"https://doi.org/10.1109/ICPES56491.2022.10073311","url":null,"abstract":"Large scale distributed photovoltaic(DPV) integration will bring new challenges to dispatching due to its uncertainty, and further increase the regulating capacity requirement of power system. As a result, a robust evaluating approach of DPV hosting capacity in uncertain environment is proposed. Based on the relationship between DPV hosting capacity and its conditional value at risk(CVaR), a robust optimization model is constructed, which considering the probability distribution characteristics of DPV. The base point and regulating capacity of automatic generation control(AGC) units are coordinated optimized to accurately evaluate the DPV hosting capacity The original model is transformed into a deterministic linear programming problem using piecewise linear approximation and uncertain variables eliminating. The effectiveness of the proposed approach is verified through a 6-bus system.","PeriodicalId":425438,"journal":{"name":"2022 12th International Conference on Power and Energy Systems (ICPES)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122496465","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 : 2022-12-23DOI: 10.1109/ICPES56491.2022.10072799
Baoju Li, Xiaobiao Fu, Yao Wang, Guanqun Zhuang, L. Guo
How to cluster generators efficiently and reasonably is the prime issue for dynamic equivalent modeling of wind and photovoltaic (PV) power plants. In this paper, based on the transient active power response characteristics, a generic dynamic clustering method for wind farms and photovoltaic power plants was proposed. Firstly, the transient response characteristics of these generators working on various operating points were simulated under three-phase short circuit faults at the point of connection and thus the initial clustering factors were derived. Secondly, the complementary aggregated indexes were obtained and analyzed through the typical distributions of operating cases. Finally, various case studies have been conducted to verify the proposed method and the simulation results have shown that the proposed method has good adaptability to different operating points and fault locations.
{"title":"Clustering and Equivalent Method for Renewable Power Plants Based on Dynamic Active Power Response Characteristics","authors":"Baoju Li, Xiaobiao Fu, Yao Wang, Guanqun Zhuang, L. Guo","doi":"10.1109/ICPES56491.2022.10072799","DOIUrl":"https://doi.org/10.1109/ICPES56491.2022.10072799","url":null,"abstract":"How to cluster generators efficiently and reasonably is the prime issue for dynamic equivalent modeling of wind and photovoltaic (PV) power plants. In this paper, based on the transient active power response characteristics, a generic dynamic clustering method for wind farms and photovoltaic power plants was proposed. Firstly, the transient response characteristics of these generators working on various operating points were simulated under three-phase short circuit faults at the point of connection and thus the initial clustering factors were derived. Secondly, the complementary aggregated indexes were obtained and analyzed through the typical distributions of operating cases. Finally, various case studies have been conducted to verify the proposed method and the simulation results have shown that the proposed method has good adaptability to different operating points and fault locations.","PeriodicalId":425438,"journal":{"name":"2022 12th International Conference on Power and Energy Systems (ICPES)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123976972","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 increasing number of wind turbines in the power grid, the problem of frequency stability has been widely concerned. It has become a consensus in the renewable energy industry that wind turbines should have frequency regulation capability. The frequency regulation process of wind power calls active power, and the change of active power may affect the load of wind turbine. Furthermore, it will harm the reliability of wind turbines and the safety of renewable energy power systems. In this paper, a wind turbine model was built through MATLAB-Bladed co-simulation, and the influence of frequency regulation process of wind turbine on mechanical load was studied. The results showed that the effect on load of hub Mx of wind turbine by frequency regulation control is severe and should be paid more attention to.
{"title":"Study on the Influence of Frequency Regulation Control on Load of Wind Turbine","authors":"Kai Liang, Yangfan Zhang, Yao-Qiang Wang, Linlin Wu, Weixin Yang, Yu Wang, Yu-lin Ma, Xianmiao Huang","doi":"10.1109/ICPES56491.2022.10072837","DOIUrl":"https://doi.org/10.1109/ICPES56491.2022.10072837","url":null,"abstract":"With the increasing number of wind turbines in the power grid, the problem of frequency stability has been widely concerned. It has become a consensus in the renewable energy industry that wind turbines should have frequency regulation capability. The frequency regulation process of wind power calls active power, and the change of active power may affect the load of wind turbine. Furthermore, it will harm the reliability of wind turbines and the safety of renewable energy power systems. In this paper, a wind turbine model was built through MATLAB-Bladed co-simulation, and the influence of frequency regulation process of wind turbine on mechanical load was studied. The results showed that the effect on load of hub Mx of wind turbine by frequency regulation control is severe and should be paid more attention to.","PeriodicalId":425438,"journal":{"name":"2022 12th International Conference on Power and Energy Systems (ICPES)","volume":"173 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117350986","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 : 2022-12-23DOI: 10.1109/ICPES56491.2022.10073158
F. Kong, Jie Li, Mengjun Liao, Shuyong Li, Xuehua Lin, Xiaobing Ding
Voltage Source Converter based High Voltage Direct Current technology has the ability of power supplying for passive loads in black start mode. The transformer at VSC-HVDC black start side will bear the voltage boosting process at the converter valve side during the black start process. If the saturation characteristic of transformer and the control function for black start is inadaptive, the transformer will be deeply saturated during the black start process, which will threaten the safety of transformer equipment and even cause HVDC tripping. In order to identify the major factor impacting the transformer saturation during black start process, this paper analyzes the saturation mechanism of the transformer at the black start side in view of a practical VSC- HVDC tripping event. Meanwhile, the saturation phenomenon consistent with the project is simulated based on the RTDS simulation platform. Then the research on the suppression measure of increasing the rated voltage climbing time from 0.2s to 60s and changing the tap changer position into the specified position for black start process, is carried out and proposed. Finally, the method proposed in this paper is verified by simulation and applied in practical projects, which proves the effectiveness of the method proposed in this paper and provides an effective solution to the transformer saturation problem during VSC-HVDC black start process.
{"title":"Research on Transformer Saturation Mechanism and Restraining Measures in VSC-HVDC Black Start Process","authors":"F. Kong, Jie Li, Mengjun Liao, Shuyong Li, Xuehua Lin, Xiaobing Ding","doi":"10.1109/ICPES56491.2022.10073158","DOIUrl":"https://doi.org/10.1109/ICPES56491.2022.10073158","url":null,"abstract":"Voltage Source Converter based High Voltage Direct Current technology has the ability of power supplying for passive loads in black start mode. The transformer at VSC-HVDC black start side will bear the voltage boosting process at the converter valve side during the black start process. If the saturation characteristic of transformer and the control function for black start is inadaptive, the transformer will be deeply saturated during the black start process, which will threaten the safety of transformer equipment and even cause HVDC tripping. In order to identify the major factor impacting the transformer saturation during black start process, this paper analyzes the saturation mechanism of the transformer at the black start side in view of a practical VSC- HVDC tripping event. Meanwhile, the saturation phenomenon consistent with the project is simulated based on the RTDS simulation platform. Then the research on the suppression measure of increasing the rated voltage climbing time from 0.2s to 60s and changing the tap changer position into the specified position for black start process, is carried out and proposed. Finally, the method proposed in this paper is verified by simulation and applied in practical projects, which proves the effectiveness of the method proposed in this paper and provides an effective solution to the transformer saturation problem during VSC-HVDC black start process.","PeriodicalId":425438,"journal":{"name":"2022 12th International Conference on Power and Energy Systems (ICPES)","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122125603","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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