Siying Zhao, Xueying Yu, Jinfeng Ding, Bo Hu, Changzheng Shao, K. Xie
{"title":"A Reliability Model of Floating Offshore Wind Turbines Considering Structure Reliability and Output Characteristics under Environmental Conditions","authors":"Siying Zhao, Xueying Yu, Jinfeng Ding, Bo Hu, Changzheng Shao, K. Xie","doi":"10.1109/ICPST56889.2023.10164863","DOIUrl":"https://doi.org/10.1109/ICPST56889.2023.10164863","url":null,"abstract":"The floating offshore wind turbine (FOWT) is the most important generation source of deep-sea wind power. With the increasing integration of wind generation into the grid, the reliability model of the FOWT is increasingly valued. The objective of this paper is to propose a reliability model of FOWT considering the effect of environmental conditions on structure reliability and output characteristics which are the most important impact factors for the reliability of the FOWT. Case studies use the OC4-DeepCwind semisubmersible wind turbine to verify the effectiveness of the proposed model at two different sites.","PeriodicalId":231392,"journal":{"name":"2023 IEEE International Conference on Power Science and Technology (ICPST)","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134131856","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}
{"title":"Bi-level Programming of Siting and Sizing for Shared Electric Bike Based on Niche Particle Swarm Algorithm","authors":"Yuhan Yin, Fei Mei, Junzhe Huang, Zhiming Feng, Ze Ouyang, Yazhao Yin, Jianyong Zheng","doi":"10.1109/ICPST56889.2023.10165593","DOIUrl":"https://doi.org/10.1109/ICPST56889.2023.10165593","url":null,"abstract":"Aiming at the siting and sizing problem of shared electric bikes, based on the principle of energy saving and emission reduction, several typical scenes are set up to simulate the circulation process of shared electric bikes in the region. Then a bi-level programming model of single-objective siting at the upper level and multi-objective sizing at the lower level is established. Further, KKT(Karush-Kuhn-Tucker) condition is used to transform the original bi-level programming model into single-layer MPEC model. In order to optimize the effectiveness and efficiency of the solution, the niche particle swarm algorithm is applied. Finally, taking Changzhou new Campus Of Hohai University as an example, the simulation result shows that the proposed method can be used to obtain a reasonable and effective plan for the siting and sizing of shared electric bikes.","PeriodicalId":231392,"journal":{"name":"2023 IEEE International Conference on Power Science and Technology (ICPST)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114054782","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}
Lei Pan, Tiejun Ma, Tianwen Zheng, Zhen Xu, Shanghui Wang
{"title":"Delayed Closing Suppression Strategy of the Transformer Inrush Current Based on the Offset Principle Between Remanence and Magnetic Bias","authors":"Lei Pan, Tiejun Ma, Tianwen Zheng, Zhen Xu, Shanghui Wang","doi":"10.1109/ICPST56889.2023.10165535","DOIUrl":"https://doi.org/10.1109/ICPST56889.2023.10165535","url":null,"abstract":"Traditional inrush current suppression strategy delayed closing strategy, due to the measurement error of remanence will cause the problem of poor suppression effect. Therefore, this paper proposes a delayed closing strategy that does not require the measurement of remanence and is based on the offset principle between remanence and magnetic bias. Firstly, this paper analyzed the transient processes in the transformer core after the breaker has been closed. And studied the offset principle between remanence and magnetic bias. Secondly, the limitation of the traditional delayed closing strategy is analyzed. A delayed closing inrush current suppression strategy based on the offset principle between remanence and magnetic bias is proposed, and its closing steps are studied. Finally, taking the auxiliary transformer of a nuclear power plant as the prototype, a simulation platform is constructed to simulate, and the delayed closing inrush current suppression strategy based on the offset principle between remanence and magnetic bias is simulated and analyzed. The results show that, under ideal conditions, the proposed delayed closing strategy based on the offset principle between remanence and magnetic bias, the inrush current suppression effect reaches 85% and above, almost completely suppressing the excitation inrush current.","PeriodicalId":231392,"journal":{"name":"2023 IEEE International Conference on Power Science and Technology (ICPST)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117265064","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}
{"title":"Suppression for Transient Voltage in Renewable Micro-grid by Power-Synchronous-Reactive-Compensation","authors":"Chenyu Zhang, Yubo Yuan, Jianyu Yu","doi":"10.1109/ICPST56889.2023.10165047","DOIUrl":"https://doi.org/10.1109/ICPST56889.2023.10165047","url":null,"abstract":"This proposed a transient voltage suppression method for renewable micro-grid based on power-synchronous-reactive-compensation (PS-RC). Firstly, the main circuit and control system of PS-RC is introduced. Then, with the case study presented in this paper, the function of PS-RC in suppression of transient voltage with a time-domain simulation is validated, which is analyzed from the perspective of voltage stiffness. Moreover, the disturbance in micro-grid is divided into grid-connection and off-grid.","PeriodicalId":231392,"journal":{"name":"2023 IEEE International Conference on Power Science and Technology (ICPST)","volume":"86 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116233996","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}
{"title":"Small Signal Stability Analysis of MMC-HVDC Grid-connected System and Optimization Control of Zero-sequence Circulating Current Controller","authors":"Yinmiao Luo, Jun Yao, Sen Huang, Kai Liu","doi":"10.1109/ICPST56889.2023.10164975","DOIUrl":"https://doi.org/10.1109/ICPST56889.2023.10164975","url":null,"abstract":"The high voltage direct current (HVDC) transmission technology based on modular multilevel converter (MMC) is widely used in the offshore grid-connected wind power generation projects, and the small signal stability problems of the grid-connected system have been attracted great attention. This paper focused on the influence of the zero-sequence circulating current (ZSCC) controller on the stability of the offshore wind power generation MMC-HVDC grid-connected system. The closed-loop frequency domain model was derived by means of complex vectors and harmonic state space firstly. Then the paper developed the single-input-single-output (SISO) impedance model of MMC which considering the ZSCC controller. In addition, the impedance model of the offshore wind farm and the distribution network were established. Based on the impedance model, the influence law and mechanism of the ZSCC controller on the stability of the offshore wind power generation MMC-HVDC grid-connected system were explored. The analysis results show that when the output power of wind is too large, the system is prone to oscillation. The application of the ZSCC controller equivalently increases the bridge arm resistance and enhancing the system damping, which effectively suppressing the resonant peaks of MMC impedance in island control mode. Finally, from the point of view of enhancing the damping of the system, the parameter optimization scheme for ZSCC controller was designed, and the correctness of the theory and the feasibility of the scheme were verified by simulations.","PeriodicalId":231392,"journal":{"name":"2023 IEEE International Conference on Power Science and Technology (ICPST)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115135120","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}
Weixiang Huang, Xiuqing Lin, Shaonan Chen, Xiaofei Xia, Bo Feng, Qianyi Chen, Shan Li
{"title":"Lightning Discharge Test of 10kV Distribution Network Insulation Cross Arm and Comprehensive Evaluation of Lightning Protection Effect","authors":"Weixiang Huang, Xiuqing Lin, Shaonan Chen, Xiaofei Xia, Bo Feng, Qianyi Chen, Shan Li","doi":"10.1109/ICPST56889.2023.10164847","DOIUrl":"https://doi.org/10.1109/ICPST56889.2023.10164847","url":null,"abstract":"10kV distribution lines have low lightning withstand level and are easily affected by direct lightning or induced lightning, leading to insulator flashover or even tripping. In order to study the influence of insulated cross arm on the lightning withstand level of 10kV overhead distribution line combined with the actual situation, this paper first built a 10kV distribution line model, carried out lightning impact comparison test of insulated cross arm and iron cross arm, and obtained the lightning impact insulation strength of tower U50% under different cross arm types. Then, the numerical calculation method of lightning induced overvoltage of 10 kV overhead lines is proposed, and the self-defined lightning induced overvoltage calculation model is established by using MODELS language. Combined with the actual situation of 10kV power supply line of an oil transmission station in southern mountainous area, a co-simulation model of direct lightning strike and induced lightning overvoltage of 10kV distribution line was established by using ATP-EMTP, and the improvement effect of insulation cross arm on lightning resistance level was quantitatively analyzed. Finally, the effect of the device to improve the level of mine resistance is verified by the actual operation. The results show that replacing the iron cross arm of the cement tower with the composite insulating cross arm can significantly improve the lightning impulse insulation strength of the tower by U50%, which has the most significant effect on improving the lightning withstand level of the induced lightning of the line, followed by the lightning withstand level of the top of the lightning rod tower, and the lightning withstand level of the lightning stroke line has little improvement. The research results can provide reference for lightning protection design and transformation of distribution lines.","PeriodicalId":231392,"journal":{"name":"2023 IEEE International Conference on Power Science and Technology (ICPST)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125028836","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}
{"title":"Analysis of Electricity Market Deregulation Effect on Chinese Economic Development Towards Carbon Neutrality: A Socioeconomic Perspective","authors":"Yajuan Cao, Fang Wang, Tao Chen","doi":"10.1109/ICPST56889.2023.10165564","DOIUrl":"https://doi.org/10.1109/ICPST56889.2023.10165564","url":null,"abstract":"In this paper, we study the electricity price, as the most important production factor, for its external effort on societal economic development with qualitative analysis of its role in the expansion and re-allocation of overall social welfare. By analysis of the agency mode in the electricity retail market and its associated policy evolution, especially under the Chinese developmental goal of carbon neutrality, it is concluded that the mature electricity market development plays a significant role in helping shaping various societal sectors in Chinese economic ecosystem, including residential consumption, transportation, commercial shopping and many others from a socioeconomic perspective. Additionally, in the achieving process of carbon peaking and carbon neutrality by year 2030 and year 2060, the re-allocation of accumulated social welfare collected from renewable energy industry and carbon emission reduction to ordinary people should be emphasized through the carefully designed mechanism, such as generalised system of preferences (GSP) dedicated to public carbon footprint and energy consumption.","PeriodicalId":231392,"journal":{"name":"2023 IEEE International Conference on Power Science and Technology (ICPST)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122906361","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}
{"title":"Analysis of Leakage Current in SiC Power MOSFET Static Avalanche Breakdown based on Temperature-Dependent Simulation","authors":"Junhong Feng, Xinhong Cheng, Li Zheng, Yuehui Yu, Feiqing Huang, Wenyu Lu, Yuhua Quan, Xu Zhou","doi":"10.1109/ICPST56889.2023.10165470","DOIUrl":"https://doi.org/10.1109/ICPST56889.2023.10165470","url":null,"abstract":"The physical mechanism of the off-state avalanche breakdown process of SiC MOSFET which is composed of the active region and the termination region is analyzed by Sentaurus simulation and verified with TLP measurement data. At different stages of off-state, the current components of the active region and the termination region of SiC MOSFET are different, and a detailed explanation is given. The leakage current is generated by the presence of high impact ionization coefficients in the PN Junction of the transition region before the occurrence of the snapback. When the snapback occurs, electrons accumulate in the n-drift/n-substrate, while the previously generated large number of holes lowers the potential barrier of the n+-source/p-body to 0.13eV to form punch through current. The parasitic NPN bipolar transistor is not considered to be triggered for no continuous hole current injects into p-body. The termination region structure determined the avalanche breakdown voltage, and the active region decides the snapback current. TLP avalanche breakdown measurement indicates that the fabricated SiC MOSFETs with the same structure parameter as that utilized in the simulation shows the snapback phenomena, which verified the validity of the physical mechanism analysis of the off-state avalanche breakdown process.","PeriodicalId":231392,"journal":{"name":"2023 IEEE International Conference on Power Science and Technology (ICPST)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125233916","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}
{"title":"Fixed Cost Allocation of Distribution Network based on Risk induced by New Energy Access","authors":"Wenjuan Niu, Guiyuan Xue, Chen Chen, Xiaojun Zhu, Zheng Xu, Jian Tan, Hao Ming","doi":"10.1109/ICPST56889.2023.10165464","DOIUrl":"https://doi.org/10.1109/ICPST56889.2023.10165464","url":null,"abstract":"The installed capacity of wind power station and photovoltaic power station increases rapidly worldwide, which not only alleviates the energy crisis but also brings great challenges to the distribution network. This paper proposes a fixed cost allocation method for distribution network considering new energy access risk. Firstly, the state model and output probability model of each component of distribution network are established. Based on the non-sequential Monte Carlo simulation method, the probabilistic power flow calculation is carried out, and the node voltage-limited risk and active power-limited risk are obtained as the risk indexes of distribution network. The entropy weight method is used to calculate the weight of each risk index, and the comprehensive risk evaluation index is obtained. Finally, a model of equitable distribution of fixed cost among all responsible parties is established. Taking IEEE 14-bus system as an example, the risks and costs caused by different subjects of new energy are analyzed, so as to realize effective risk measurement and fair cost distribution to a greater extent.","PeriodicalId":231392,"journal":{"name":"2023 IEEE International Conference on Power Science and Technology (ICPST)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125278967","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}
{"title":"Incorporating Vehicle-to-grid Technology in Charging Station Planning in Coupled Power-Transportation Networks","authors":"Xun Li, Jing Ge, Peng Huang, Qianyu Dong, Guanyu Zhou","doi":"10.1109/ICPST56889.2023.10165144","DOIUrl":"https://doi.org/10.1109/ICPST56889.2023.10165144","url":null,"abstract":"Facilitating the flexible and economic operation of power distribution networks, vehicle-to-grid (V2G) technology is deemed a promising key of supporting the large-scale electric vehicles (EVs) diffusion. However, the benefits of V2G are curtailed under an inadequate electric vehicle charging station planning strategy. To tackle this issue, we propose charging station siting and sizing problem in aware of the V2G behavior, in which the service competence of the power-transportation network is jointly optimized. A preliminary case is used to verify the effectiveness of the proposed charging station planning method. The results show that the proposed method is efficient in reducing operation costs in the context of different requirements of power-transportation networks.","PeriodicalId":231392,"journal":{"name":"2023 IEEE International Conference on Power Science and Technology (ICPST)","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126271842","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}