Pub Date : 2024-07-01DOI: 10.1088/1742-6596/2806/1/012002
Tao Zhang, Shuang Li, Yuhui Fu, Yiming Wu, Liang Wang
With the increasing scale and complexity of power projects, designers face more and more challenges in terms of design quality and efficiency. In order to improve design quality and reduce human-caused errors, utilizing technologies such as big data and strong artificial intelligence, this manuscript proposes a key technology for smart grid based on holographic data. Firstly, the concept and key technologies of holographic intelligent design were proposed. Then, the overall plan of holographic smart grid was constructed, and the implementation methods of the main functions of holographic smart grid were elaborated. Finally, the construction process of the holographic digital twin platform was explored.
{"title":"Research on key technology of smart grid based on holographic data","authors":"Tao Zhang, Shuang Li, Yuhui Fu, Yiming Wu, Liang Wang","doi":"10.1088/1742-6596/2806/1/012002","DOIUrl":"https://doi.org/10.1088/1742-6596/2806/1/012002","url":null,"abstract":"\u0000 With the increasing scale and complexity of power projects, designers face more and more challenges in terms of design quality and efficiency. In order to improve design quality and reduce human-caused errors, utilizing technologies such as big data and strong artificial intelligence, this manuscript proposes a key technology for smart grid based on holographic data. Firstly, the concept and key technologies of holographic intelligent design were proposed. Then, the overall plan of holographic smart grid was constructed, and the implementation methods of the main functions of holographic smart grid were elaborated. Finally, the construction process of the holographic digital twin platform was explored.","PeriodicalId":506941,"journal":{"name":"Journal of Physics: Conference Series","volume":"14 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141848312","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 view of the increasing energy consumption and power demand, the construction of UHV AC is growing rapidly, and the construction of the project is gradually advancing to higher altitudes. It is urgent to conduct research on typical gap discharge in substations at high altitudes. Combined with the engineering requirements, this paper corrects the test data at an altitude of 0 m according to GB/T 24842 standard through altitude correction and combines the discharge voltage requirements of various typical gaps in substations to obtain the minimum air gap distance in UHV substations at an altitude of 5000 m and below. The calculation results of the two altitude correction methods are compared and analyzed, and the applicability of the two methods is analyzed.
鉴于能源消耗和电力需求的不断增长，特高压交流建设发展迅速，工程建设逐步向高海拔地区推进。开展高海拔地区变电站典型间隙放电研究迫在眉睫。结合工程要求，本文根据 GB/T 24842 标准，通过海拔高度修正，对海拔 0 m 的试验数据进行修正，并结合变电站各种典型间隙的放电电压要求，得出海拔 5000 m 及以下特高压变电站的最小空气间隙距离。对比分析了两种海拔修正方法的计算结果，分析了两种方法的适用性。
{"title":"Gap distance of UHV substation in areas with an altitude of 5000 m and below","authors":"Xiuyuan Yao, Yu Su, Songsong Zhou, Yujian Ding, Yifan Lin, Ling Jiang, Shijun Xie","doi":"10.1088/1742-6596/2797/1/012015","DOIUrl":"https://doi.org/10.1088/1742-6596/2797/1/012015","url":null,"abstract":"\u0000 In view of the increasing energy consumption and power demand, the construction of UHV AC is growing rapidly, and the construction of the project is gradually advancing to higher altitudes. It is urgent to conduct research on typical gap discharge in substations at high altitudes. Combined with the engineering requirements, this paper corrects the test data at an altitude of 0 m according to GB/T 24842 standard through altitude correction and combines the discharge voltage requirements of various typical gaps in substations to obtain the minimum air gap distance in UHV substations at an altitude of 5000 m and below. The calculation results of the two altitude correction methods are compared and analyzed, and the applicability of the two methods is analyzed.","PeriodicalId":506941,"journal":{"name":"Journal of Physics: Conference Series","volume":"10 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141848786","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 : 2024-07-01DOI: 10.1088/1742-6596/2793/1/012019
M. E. Abdelraouf, A. Kandil, W. K. Zahra, A. Elsaid
Micro-electromechanical system (MEMS) resonator is decidedly utilized in a diversity of areas, including time referencing, movement sensing, signal filtration, mass detecting, and further numerous applications. The aim of this article is to use the multiple scales approach to derive analytical formulas for MEMS resonator vibration response. The properties of the complicated nonlinear system at various AC and DC voltages are investigated to be extremely well captured by modeling the dynamics of the micro-beam using multiple scales technique. The resulting Jacobian matrix eigenvalues are tested to verify the stability ranges of these solutions; hence, the jump phenomenon that occurs in experimental performance is interpreted. To study the influence of resonator characteristics on the nonlinear dynamical behavior of such a beam, several response plots are presented. Finally, a numerical solution is obtained with the fourth order Rung-Kutta method to verify the studied model’s overall behavior.
{"title":"Investigation of a MEMS resonator model with quintic nonlinearity","authors":"M. E. Abdelraouf, A. Kandil, W. K. Zahra, A. Elsaid","doi":"10.1088/1742-6596/2793/1/012019","DOIUrl":"https://doi.org/10.1088/1742-6596/2793/1/012019","url":null,"abstract":"\u0000 Micro-electromechanical system (MEMS) resonator is decidedly utilized in a diversity of areas, including time referencing, movement sensing, signal filtration, mass detecting, and further numerous applications. The aim of this article is to use the multiple scales approach to derive analytical formulas for MEMS resonator vibration response. The properties of the complicated nonlinear system at various AC and DC voltages are investigated to be extremely well captured by modeling the dynamics of the micro-beam using multiple scales technique. The resulting Jacobian matrix eigenvalues are tested to verify the stability ranges of these solutions; hence, the jump phenomenon that occurs in experimental performance is interpreted. To study the influence of resonator characteristics on the nonlinear dynamical behavior of such a beam, several response plots are presented. Finally, a numerical solution is obtained with the fourth order Rung-Kutta method to verify the studied model’s overall behavior.","PeriodicalId":506941,"journal":{"name":"Journal of Physics: Conference Series","volume":"16 12","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141849056","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 : 2024-07-01DOI: 10.1088/1742-6596/2799/1/012004
M. B. Jensen, P. Balling, S. H. Vindbæk, S. J. Doran, M. L. Jensen, J. Petersen, L. Muren
The dose response of materials used in radiochromic three-dimensional (3D) dosimeters is often characterised via spectrophotometry of small cuvette samples as it is less time-consuming and cheaper. However, spatially-resolved dose measurements for clinical purposes are obtained using 3D optical computed tomography (CT). Hence, the link between the method of characterisation and the method for extracting 3D dose information must be established. The aim of this study was to investigate if spectrophotometry-based dose-response characterisation using cuvette-sized samples is valid for calibration of 3D optical CT readout systems using a silicone-based radiochromic dosimeter. Additionally, the uniformity of 3D optical CT dose-response readout of larger samples was investigated. We found the dose response of cuvette-sized samples read out by spectrophotometry to agree with the averaged dose response across cuvette-sized samples read out by optical CT and with the response near the edges of larger samples scanned using the same apparatus. Thus, cuvette-based dose-response spectrophotometry can be used to calibrate 3D optical CT readout using silicone-based radiochromic dosimeters. However, caution should be taken when considering larger samples as they exhibit a gradual radial increase in dose response from the centre and outwards.
{"title":"On the validity of using spectrophotometry of cuvettes to provide a dose-response calibration for radiochromic optical computed tomography-based three-dimensional dosimetry","authors":"M. B. Jensen, P. Balling, S. H. Vindbæk, S. J. Doran, M. L. Jensen, J. Petersen, L. Muren","doi":"10.1088/1742-6596/2799/1/012004","DOIUrl":"https://doi.org/10.1088/1742-6596/2799/1/012004","url":null,"abstract":"\u0000 The dose response of materials used in radiochromic three-dimensional (3D) dosimeters is often characterised via spectrophotometry of small cuvette samples as it is less time-consuming and cheaper. However, spatially-resolved dose measurements for clinical purposes are obtained using 3D optical computed tomography (CT). Hence, the link between the method of characterisation and the method for extracting 3D dose information must be established. The aim of this study was to investigate if spectrophotometry-based dose-response characterisation using cuvette-sized samples is valid for calibration of 3D optical CT readout systems using a silicone-based radiochromic dosimeter. Additionally, the uniformity of 3D optical CT dose-response readout of larger samples was investigated. We found the dose response of cuvette-sized samples read out by spectrophotometry to agree with the averaged dose response across cuvette-sized samples read out by optical CT and with the response near the edges of larger samples scanned using the same apparatus. Thus, cuvette-based dose-response spectrophotometry can be used to calibrate 3D optical CT readout using silicone-based radiochromic dosimeters. However, caution should be taken when considering larger samples as they exhibit a gradual radial increase in dose response from the centre and outwards.","PeriodicalId":506941,"journal":{"name":"Journal of Physics: Conference Series","volume":"16 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141849064","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 : 2024-07-01DOI: 10.1088/1742-6596/2774/1/012036
Pengpeng Lyu, Q. Bu, Ye Guo, Fei Luo
The energy management issue of a smart grid is the key to the efficient and stable operation of a smart grid. Due to the large number of distributed energy sources connected, the centralized dispatch method is no longer applicable, and the smart grid uses distributed algorithms for dispatch. In this paper, based on modeling and analysis of the smart grid dispatch problem, the distributed dispatch algorithm is designed by combining the consistency theory in multi-intelligent body systems. First, the distributed scheduling algorithm is designed under ideal communication conditions. Then, the correctness of the algorithm is verified in the MATLAB simulation platform under two conditions without considering the generator set output constraint and considering the generator set output constraint. The analysis of the study simulation results shows that the optimal solution of the scheduling problem is obtained when the marginal costs of the generation equipment converge consistently.
{"title":"Distributed Dispatching Optimization based on Consistency Theory for Smart Grid","authors":"Pengpeng Lyu, Q. Bu, Ye Guo, Fei Luo","doi":"10.1088/1742-6596/2774/1/012036","DOIUrl":"https://doi.org/10.1088/1742-6596/2774/1/012036","url":null,"abstract":"\u0000 The energy management issue of a smart grid is the key to the efficient and stable operation of a smart grid. Due to the large number of distributed energy sources connected, the centralized dispatch method is no longer applicable, and the smart grid uses distributed algorithms for dispatch. In this paper, based on modeling and analysis of the smart grid dispatch problem, the distributed dispatch algorithm is designed by combining the consistency theory in multi-intelligent body systems. First, the distributed scheduling algorithm is designed under ideal communication conditions. Then, the correctness of the algorithm is verified in the MATLAB simulation platform under two conditions without considering the generator set output constraint and considering the generator set output constraint. The analysis of the study simulation results shows that the optimal solution of the scheduling problem is obtained when the marginal costs of the generation equipment converge consistently.","PeriodicalId":506941,"journal":{"name":"Journal of Physics: Conference Series","volume":"11 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141848932","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 : 2024-07-01DOI: 10.1088/1742-6596/2795/1/012006
Chiayang Lin, Kejia Sun, Tianrui Zhao, Zhengwen Nie, Yanzheng Zhao
This work introduces a lightweight LIO framework employing incremental voxels for enhanced efficiency. We leverage a sparse voxel data structure, replacing the tree structure in the Point-LIO open-source framework. Through hash table-managed voxel indexes, we achieve rapid K nearest neighbor search within nearly one voxel size with constant complexity query speed. This approach significantly reduces the time cost associated with tree nodes construction, balancing, and iteration compared to the tree-like structures. Experimental results demonstrate that our proposed enhancement achieves an average speed-up of 21.5% compared to Point-LIO in publicly available datasets. Moreover, it reduces drift by an average of approximately 20(m) and ATE by 1.41(m) under sparse point cloud input conditions.
{"title":"Lightweight High-Bandwidth LiDAR-Inertial Odometry Employing Sparse Incremental Hash-Voxels","authors":"Chiayang Lin, Kejia Sun, Tianrui Zhao, Zhengwen Nie, Yanzheng Zhao","doi":"10.1088/1742-6596/2795/1/012006","DOIUrl":"https://doi.org/10.1088/1742-6596/2795/1/012006","url":null,"abstract":"\u0000 This work introduces a lightweight LIO framework employing incremental voxels for enhanced efficiency. We leverage a sparse voxel data structure, replacing the tree structure in the Point-LIO open-source framework. Through hash table-managed voxel indexes, we achieve rapid K nearest neighbor search within nearly one voxel size with constant complexity query speed. This approach significantly reduces the time cost associated with tree nodes construction, balancing, and iteration compared to the tree-like structures. Experimental results demonstrate that our proposed enhancement achieves an average speed-up of 21.5% compared to Point-LIO in publicly available datasets. Moreover, it reduces drift by an average of approximately 20(m) and ATE by 1.41(m) under sparse point cloud input conditions.","PeriodicalId":506941,"journal":{"name":"Journal of Physics: Conference Series","volume":"22 19","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141849160","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 : 2024-07-01DOI: 10.1088/1742-6596/2774/1/012098
Xin Hu, Yifei Wang, Xiaojuan Xi, Yanxun Guo
Electromagnetic interference from transmission lines to adjacent pipelines can adversely affect the safe functioning of these pipelines. In this paper, a simulation model that the transmission line crosses the buried pipeline is established in CDEGS software. The influence of current amplitude, soil resistivity, and cross angle on the electromagnetic interferences are analyzed under different operation conditions of transmission line, including normal operation, short circuit fault and lightning fault. The analysis results are as follows: the soil resistivity has a great influence on the coating withstand voltage under the short circuit fault and lightning fault condition; with the increase of the current amplitude and the cross angle, the coating withstands voltage increases and decreases, respectively. These results indicate that, during construction, it is advisable to avoid parallel layouts of transmission lines and pipelines. Pipelines ought to be built in regions characterized by lower soil resistivity.
{"title":"Influence Of Transmission Lines On Buried Pipelines Under Various Operation Conditions","authors":"Xin Hu, Yifei Wang, Xiaojuan Xi, Yanxun Guo","doi":"10.1088/1742-6596/2774/1/012098","DOIUrl":"https://doi.org/10.1088/1742-6596/2774/1/012098","url":null,"abstract":"\u0000 Electromagnetic interference from transmission lines to adjacent pipelines can adversely affect the safe functioning of these pipelines. In this paper, a simulation model that the transmission line crosses the buried pipeline is established in CDEGS software. The influence of current amplitude, soil resistivity, and cross angle on the electromagnetic interferences are analyzed under different operation conditions of transmission line, including normal operation, short circuit fault and lightning fault. The analysis results are as follows: the soil resistivity has a great influence on the coating withstand voltage under the short circuit fault and lightning fault condition; with the increase of the current amplitude and the cross angle, the coating withstands voltage increases and decreases, respectively. These results indicate that, during construction, it is advisable to avoid parallel layouts of transmission lines and pipelines. Pipelines ought to be built in regions characterized by lower soil resistivity.","PeriodicalId":506941,"journal":{"name":"Journal of Physics: Conference Series","volume":"23 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141849537","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 : 2024-07-01DOI: 10.1088/1742-6596/2797/1/012041
Fengxia Cheng
This paper introduces the composition of complete sets of driving equipment, including driving equipment, anchoring and breaking equipment, transportation equipment, and the control principle of the linkage of driving equipment, anchoring and breaking equipment, and transportation equipment, puts forward the hardware system composition of each sub-equipment, and redundant design has been carried out for communication between devices, with wired as the main and wireless as the auxiliary. The application shows that based on the dual communication network, the collaborative linkage control of the complete set of mining equipment has achieved good results, achieving coordinated control of equipment walking, starting and stopping, and improving the excavation speed of the tunnel. Its successful application has accumulated valuable experience for achieving unmanned control of excavation face equipment.
{"title":"Coordinated control system of driving equipment","authors":"Fengxia Cheng","doi":"10.1088/1742-6596/2797/1/012041","DOIUrl":"https://doi.org/10.1088/1742-6596/2797/1/012041","url":null,"abstract":"\u0000 This paper introduces the composition of complete sets of driving equipment, including driving equipment, anchoring and breaking equipment, transportation equipment, and the control principle of the linkage of driving equipment, anchoring and breaking equipment, and transportation equipment, puts forward the hardware system composition of each sub-equipment, and redundant design has been carried out for communication between devices, with wired as the main and wireless as the auxiliary. The application shows that based on the dual communication network, the collaborative linkage control of the complete set of mining equipment has achieved good results, achieving coordinated control of equipment walking, starting and stopping, and improving the excavation speed of the tunnel. Its successful application has accumulated valuable experience for achieving unmanned control of excavation face equipment.","PeriodicalId":506941,"journal":{"name":"Journal of Physics: Conference Series","volume":"2 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141849601","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 : 2024-07-01DOI: 10.1088/1742-6596/2806/1/012014
Ruan Ming Huang, Hao En Li, Lin Xin Miao, Can Bing Li, Yu Fei Xu, Xiang Deng, Qi Ying Zhang
Since the penetration of wind power rises rapidly, the coupling between wind power and meteorology strengthens the dependence of the new power system on meteorology. The fluctuation of wind power and the ramp events become key challenges that affect the safe and stable operation of the power system. To balance the accuracy and efficiency of wind power ramp event detection, an adaptive sliding time window-based ramp event detection method is proposed, which includes three major steps: dataset preprocessing and compression, wind power ramp trend pattern extraction considering bump event screening, and wind power ramp detection based on adaptive sliding time window. The correlation between the ramp event of wind power and meteorological factors like temperature, wind speed and direction are analyzed, and the feasibility of the proposed method is verified. The results show that wind speed is the decisive meteorological factor influencing ramp events, and wind power is also affected by wind direction. However, the correlation between wind power and temperature is weak, which only works in a few ramp events.
{"title":"Correlation analysis of wind power and meteorology based on the ramp detection method with adaptive sliding window","authors":"Ruan Ming Huang, Hao En Li, Lin Xin Miao, Can Bing Li, Yu Fei Xu, Xiang Deng, Qi Ying Zhang","doi":"10.1088/1742-6596/2806/1/012014","DOIUrl":"https://doi.org/10.1088/1742-6596/2806/1/012014","url":null,"abstract":"\u0000 Since the penetration of wind power rises rapidly, the coupling between wind power and meteorology strengthens the dependence of the new power system on meteorology. The fluctuation of wind power and the ramp events become key challenges that affect the safe and stable operation of the power system. To balance the accuracy and efficiency of wind power ramp event detection, an adaptive sliding time window-based ramp event detection method is proposed, which includes three major steps: dataset preprocessing and compression, wind power ramp trend pattern extraction considering bump event screening, and wind power ramp detection based on adaptive sliding time window. The correlation between the ramp event of wind power and meteorological factors like temperature, wind speed and direction are analyzed, and the feasibility of the proposed method is verified. The results show that wind speed is the decisive meteorological factor influencing ramp events, and wind power is also affected by wind direction. However, the correlation between wind power and temperature is weak, which only works in a few ramp events.","PeriodicalId":506941,"journal":{"name":"Journal of Physics: Conference Series","volume":"31 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141850194","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}
Several resonant overvoltage accidents caused by machine-grid interaction in offshore wind power generation systems have led to significant economic losses over the years. To solve this problem, based on the equivalent distributed parameter circuit model of AC submarine cable delivery system, a method combining impedance simulation-time domain simulation and spectrum analysis is proposed to reveal the mechanism of resonant overvoltage and its influencing factors. First of all, considering the phase locked loop (PLL) model and the cable distribution parameter model, an impedance model of AC submarine cable delivery system for offshore wind power is established, which takes into account the dynamic characteristics of PLL and current loop, and provides a model basis for the theoretical analysis. Then, equations for current and frequency at the point of common coupling (PCC) are derived to analyze the mechanism of resonant overvoltage generation and the influence of submarine cable length and power grid strength on resonance. Finally, PSCAD is used to verify the resonance mechanism of AC submarine cable delivery system and its influencing factors.
{"title":"Analysis of Resonance Mechanism of AC Submarine Cable Delivery System for Offshore Wind Power","authors":"Shuxin Tian, Yu Zhou, Lujie Liu, Yanjiu Zhang, Haoxing Zhao","doi":"10.1088/1742-6596/2774/1/012093","DOIUrl":"https://doi.org/10.1088/1742-6596/2774/1/012093","url":null,"abstract":"\u0000 Several resonant overvoltage accidents caused by machine-grid interaction in offshore wind power generation systems have led to significant economic losses over the years. To solve this problem, based on the equivalent distributed parameter circuit model of AC submarine cable delivery system, a method combining impedance simulation-time domain simulation and spectrum analysis is proposed to reveal the mechanism of resonant overvoltage and its influencing factors. First of all, considering the phase locked loop (PLL) model and the cable distribution parameter model, an impedance model of AC submarine cable delivery system for offshore wind power is established, which takes into account the dynamic characteristics of PLL and current loop, and provides a model basis for the theoretical analysis. Then, equations for current and frequency at the point of common coupling (PCC) are derived to analyze the mechanism of resonant overvoltage generation and the influence of submarine cable length and power grid strength on resonance. Finally, PSCAD is used to verify the resonance mechanism of AC submarine cable delivery system and its influencing factors.","PeriodicalId":506941,"journal":{"name":"Journal of Physics: Conference Series","volume":"37 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141850976","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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