As an underground space resource with great development prospects, mine is an important way to realize the large-scale development of compressed air energy storage. To promote the mine application in the field of compressed air energy storage, the mine compressed air energy storage system based on stepped gas compression is put forward. On this basis, the model of mine compressed air energy storage system based on stepped gas compression is established. The influences of throttle pressure and permeability coefficient of the seal layer on the power generation efficiency and energy storage density of the system are analyzed. The research results show that compared with the conventional compressed air energy storage system, the mine compressed air energy storage system based on stepped gas compression can increase the power generation efficiency by 3%-9% and the energy storage density by 27.5%~409.5%. To reduce the permeability loss of the air in the mine, the minimum permeability coefficient of the sealing layer should not be greater than 1e-18.
{"title":"Thermal and Electric Characteristics of Mine Compressed Air Energy Storage System Based on Stepped Gas Compression","authors":"Jiangfeng Zhu, Chunhui Wei, Yue Zhang, Dadong Hu, Tianwen Zheng, Linsen Shan","doi":"10.1109/AEEES56888.2023.10114342","DOIUrl":"https://doi.org/10.1109/AEEES56888.2023.10114342","url":null,"abstract":"As an underground space resource with great development prospects, mine is an important way to realize the large-scale development of compressed air energy storage. To promote the mine application in the field of compressed air energy storage, the mine compressed air energy storage system based on stepped gas compression is put forward. On this basis, the model of mine compressed air energy storage system based on stepped gas compression is established. The influences of throttle pressure and permeability coefficient of the seal layer on the power generation efficiency and energy storage density of the system are analyzed. The research results show that compared with the conventional compressed air energy storage system, the mine compressed air energy storage system based on stepped gas compression can increase the power generation efficiency by 3%-9% and the energy storage density by 27.5%~409.5%. To reduce the permeability loss of the air in the mine, the minimum permeability coefficient of the sealing layer should not be greater than 1e-18.","PeriodicalId":272114,"journal":{"name":"2023 5th Asia Energy and Electrical Engineering Symposium (AEEES)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130691107","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 : 2023-03-23DOI: 10.1109/AEEES56888.2023.10114135
Zhen-Ying Wang, Yu Huang, Taike Wang
In order to establish connections between emergency state classification and operating procedures in nuclear power plants, the important information indicating and reflecting safety of plant in operating procedures and beneficial to emergency state classification, such as degradation of state functions in state oriented emergency operating procedures, are screened out from different kind of operating procedures, then, based on these information, initial conditions of each identification category of emergency action levels are discussed and interfaces are set in operating procedures accordingly. Thanks to the established substantial connections between emergency state classification and operating procedures, emergency state classification is expected to be extensively integrated into computerized operating procedures, automatic determination of emergency action levels is prospective, which will relieve the burden of operators and emergency team under accident conditions.
{"title":"Interfaces between Emergency State Classification and Operating Procedures in Nuclear Power Plants","authors":"Zhen-Ying Wang, Yu Huang, Taike Wang","doi":"10.1109/AEEES56888.2023.10114135","DOIUrl":"https://doi.org/10.1109/AEEES56888.2023.10114135","url":null,"abstract":"In order to establish connections between emergency state classification and operating procedures in nuclear power plants, the important information indicating and reflecting safety of plant in operating procedures and beneficial to emergency state classification, such as degradation of state functions in state oriented emergency operating procedures, are screened out from different kind of operating procedures, then, based on these information, initial conditions of each identification category of emergency action levels are discussed and interfaces are set in operating procedures accordingly. Thanks to the established substantial connections between emergency state classification and operating procedures, emergency state classification is expected to be extensively integrated into computerized operating procedures, automatic determination of emergency action levels is prospective, which will relieve the burden of operators and emergency team under accident conditions.","PeriodicalId":272114,"journal":{"name":"2023 5th Asia Energy and Electrical Engineering Symposium (AEEES)","volume":"86 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132422256","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 : 2023-03-23DOI: 10.1109/AEEES56888.2023.10114331
Wang Xiangyan, Zhou Qiang, Chen Ning, Zhao Dawei, Peng Peipei
Concentrated solar power technology is a renewable energy power generation technology that can achieve friendly grid connection and effective peak shaving at the same time. Based on the characteristics of the synchronous generator of the concentrated solar power unit, this paper first studies the reactive voltage control mode of the concentrated solar power plant, proposes the control technology of the generator terminal voltage and the high-voltage side bus voltage of the concentrated solar power plant, and analyzes the transient response characteristics of the generator terminal voltage of the concentrated solar power unit and its support capacity for the grid voltage under fault conditions. Through the excitation control system of synchronous generator, the generator terminal voltage of the power station can be controlled, and the bus voltage at the high voltage side of the power station can also be controlled, realizing the reactive voltage support for the power grid. On this basis, a power system example of wind power-photovoltaic-solar thermal combined power generation sent to the load center is designed to study the transient reactive power and voltage support capacity of solar thermal power stations. The research shows that the generator terminal voltage changes after the disturbance, but it can quickly adjust to the reference value under the condition of small disturbances such as voltage and load; Under the large disturbance of short circuit fault, the generator terminal voltage changes sharply, but it can finally stabilize and adjust to the reference value under the control of excitation system.
{"title":"Research on Supporting Capacity of Concentrated Solar Power Plant Based on Reactive Power and Voltage Control","authors":"Wang Xiangyan, Zhou Qiang, Chen Ning, Zhao Dawei, Peng Peipei","doi":"10.1109/AEEES56888.2023.10114331","DOIUrl":"https://doi.org/10.1109/AEEES56888.2023.10114331","url":null,"abstract":"Concentrated solar power technology is a renewable energy power generation technology that can achieve friendly grid connection and effective peak shaving at the same time. Based on the characteristics of the synchronous generator of the concentrated solar power unit, this paper first studies the reactive voltage control mode of the concentrated solar power plant, proposes the control technology of the generator terminal voltage and the high-voltage side bus voltage of the concentrated solar power plant, and analyzes the transient response characteristics of the generator terminal voltage of the concentrated solar power unit and its support capacity for the grid voltage under fault conditions. Through the excitation control system of synchronous generator, the generator terminal voltage of the power station can be controlled, and the bus voltage at the high voltage side of the power station can also be controlled, realizing the reactive voltage support for the power grid. On this basis, a power system example of wind power-photovoltaic-solar thermal combined power generation sent to the load center is designed to study the transient reactive power and voltage support capacity of solar thermal power stations. The research shows that the generator terminal voltage changes after the disturbance, but it can quickly adjust to the reference value under the condition of small disturbances such as voltage and load; Under the large disturbance of short circuit fault, the generator terminal voltage changes sharply, but it can finally stabilize and adjust to the reference value under the control of excitation system.","PeriodicalId":272114,"journal":{"name":"2023 5th Asia Energy and Electrical Engineering Symposium (AEEES)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131884949","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 : 2023-03-23DOI: 10.1109/AEEES56888.2023.10114252
G. Wang, Haifeng Fan, Mingde Bi, Cheng Huang, Yihui Fan, Chuang Liu
In response to the low-carbon strategic goals, the proportion of intermittent renewable energy resources in the power system has been increasing in recent years, which has significantly increased the load uncertainty of the power system. In order to solve the negative impact of the instability of new energy generation on the power grid, a low-carbon economic dispatching method of the power system with the participation of large-scale energy storage and multiple types of regulating resources is proposed. Firstly, a neural network algorithm is used to simulate and predict the new energy output, and an economic dispatching architecture is constructed with the participation of large-scale energy storage and multiple types of regulating resources; secondly, a stepped carbon trading mechanism is considered, and a mathematical model of the power system with large-scale energy storage and multiple types of regulating resources such as scenery and fire is established with the operation and maintenance cost, carbon emission cost, and operation penalty cost of renewable energy output as the objective function. At the same time, the average change rate index of scenery power output is used to evaluate the power fluctuation leveling ability of the energy storage system, so as to obtain the system operation scheme with the optimal comprehensive fluctuation leveling ability, economy and low carbon. Finally, the optimization model is solved by using the CPLEX solver under different operation scenarios and the feasibility of the proposed scheme is verified.
{"title":"Considering Low-Carbon Economic Dispatch of Power Systems with the Participation of Large-Scale Energy Storage and Multiple Types of Regulation Resources","authors":"G. Wang, Haifeng Fan, Mingde Bi, Cheng Huang, Yihui Fan, Chuang Liu","doi":"10.1109/AEEES56888.2023.10114252","DOIUrl":"https://doi.org/10.1109/AEEES56888.2023.10114252","url":null,"abstract":"In response to the low-carbon strategic goals, the proportion of intermittent renewable energy resources in the power system has been increasing in recent years, which has significantly increased the load uncertainty of the power system. In order to solve the negative impact of the instability of new energy generation on the power grid, a low-carbon economic dispatching method of the power system with the participation of large-scale energy storage and multiple types of regulating resources is proposed. Firstly, a neural network algorithm is used to simulate and predict the new energy output, and an economic dispatching architecture is constructed with the participation of large-scale energy storage and multiple types of regulating resources; secondly, a stepped carbon trading mechanism is considered, and a mathematical model of the power system with large-scale energy storage and multiple types of regulating resources such as scenery and fire is established with the operation and maintenance cost, carbon emission cost, and operation penalty cost of renewable energy output as the objective function. At the same time, the average change rate index of scenery power output is used to evaluate the power fluctuation leveling ability of the energy storage system, so as to obtain the system operation scheme with the optimal comprehensive fluctuation leveling ability, economy and low carbon. Finally, the optimization model is solved by using the CPLEX solver under different operation scenarios and the feasibility of the proposed scheme is verified.","PeriodicalId":272114,"journal":{"name":"2023 5th Asia Energy and Electrical Engineering Symposium (AEEES)","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131948425","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 : 2023-03-23DOI: 10.1109/AEEES56888.2023.10114130
Yao Qu, Mingming Shi, Shiyu Sun, Bin Li, Juntao Fei, Xiong Yang
Aiming at the problem of three-phase voltage unbalance caused by the probabilistic output of single-phase distributed photovoltaic (DPV) in distribution network, the method of coordinated operation of DPV reactive power regulation and capacitor bank to control three-phase voltage unbalance is studied. The relationship between the reactive power of single-phase DPV output and the three-phase unbalance degree of the grid-connected common connection point is analyzed. The influence of the reactive power of the capacitor bank on the three-phase unbalance degree of each node is deduced. The output value of DPV is calculated based on the prediction results of solar irradiance. Aiming at the three-phase unbalance of the common connection point not exceeding 2%, the reactive power regulation is given according to the derivation relationship between the reactive power of each equipment and the three-phase unbalance, so as to ensure that the three-phase unbalance in the station area is limited within the required range. Finally, the correctness and effectiveness of the method are verified by the data calculation of a station in Jiangsu Province.
{"title":"Three Phase Unbalance Control Method Based on Coordinated Control of Adjustable Resources in Distribution Network","authors":"Yao Qu, Mingming Shi, Shiyu Sun, Bin Li, Juntao Fei, Xiong Yang","doi":"10.1109/AEEES56888.2023.10114130","DOIUrl":"https://doi.org/10.1109/AEEES56888.2023.10114130","url":null,"abstract":"Aiming at the problem of three-phase voltage unbalance caused by the probabilistic output of single-phase distributed photovoltaic (DPV) in distribution network, the method of coordinated operation of DPV reactive power regulation and capacitor bank to control three-phase voltage unbalance is studied. The relationship between the reactive power of single-phase DPV output and the three-phase unbalance degree of the grid-connected common connection point is analyzed. The influence of the reactive power of the capacitor bank on the three-phase unbalance degree of each node is deduced. The output value of DPV is calculated based on the prediction results of solar irradiance. Aiming at the three-phase unbalance of the common connection point not exceeding 2%, the reactive power regulation is given according to the derivation relationship between the reactive power of each equipment and the three-phase unbalance, so as to ensure that the three-phase unbalance in the station area is limited within the required range. Finally, the correctness and effectiveness of the method are verified by the data calculation of a station in Jiangsu Province.","PeriodicalId":272114,"journal":{"name":"2023 5th Asia Energy and Electrical Engineering Symposium (AEEES)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130246436","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 : 2023-03-23DOI: 10.1109/AEEES56888.2023.10114132
Jirui Zhou, Chuan He
Typhoon is an extreme weather condition that can be devastating to power grids, and its enormous destructive effect often leads to line breakdowns and failures. It is important to study the probability of grid system failure in extreme weather to effectively prevent typhoon-induced line failures. In order to describe the relationship between typhoons and transmission network resilience, the classical Rankine model is used to describe typhoon wind speeds, taking into account the impact of different wind speeds in different zones along the typhoon path. An exponential function type of line fault rate model based on typhoon wind speed is proposed. In this paper, the non-sequential Monte Carlo simulation method and the Latin hypercube sampling method are used to simulate and calculate the load shedding of the system as a risk assessment index. The calculations are carried out using Matlab and Matpower for the IEEE24-bus power system in three cases at different wind speeds. The results show that the amount of load shedding of is directly related to typhoon wind speed. Through simulation, the vulnerable lines and buses can be found and be reinforced precisely, therefore reduce the load loss caused by extreme typhoon weather. In this paper, a typhoon wind speed model based on rankie model and a calculation method for transmission line fault rate to simulate the effects of extreme weather using non-Monte Carlo sequences are proposed. The correctness of the algorithm is verified by IEEE-24 bus system.
{"title":"Risk Assessment of Power System under Extreme Typhoon Events","authors":"Jirui Zhou, Chuan He","doi":"10.1109/AEEES56888.2023.10114132","DOIUrl":"https://doi.org/10.1109/AEEES56888.2023.10114132","url":null,"abstract":"Typhoon is an extreme weather condition that can be devastating to power grids, and its enormous destructive effect often leads to line breakdowns and failures. It is important to study the probability of grid system failure in extreme weather to effectively prevent typhoon-induced line failures. In order to describe the relationship between typhoons and transmission network resilience, the classical Rankine model is used to describe typhoon wind speeds, taking into account the impact of different wind speeds in different zones along the typhoon path. An exponential function type of line fault rate model based on typhoon wind speed is proposed. In this paper, the non-sequential Monte Carlo simulation method and the Latin hypercube sampling method are used to simulate and calculate the load shedding of the system as a risk assessment index. The calculations are carried out using Matlab and Matpower for the IEEE24-bus power system in three cases at different wind speeds. The results show that the amount of load shedding of is directly related to typhoon wind speed. Through simulation, the vulnerable lines and buses can be found and be reinforced precisely, therefore reduce the load loss caused by extreme typhoon weather. In this paper, a typhoon wind speed model based on rankie model and a calculation method for transmission line fault rate to simulate the effects of extreme weather using non-Monte Carlo sequences are proposed. The correctness of the algorithm is verified by IEEE-24 bus system.","PeriodicalId":272114,"journal":{"name":"2023 5th Asia Energy and Electrical Engineering Symposium (AEEES)","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130493142","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 : 2023-03-23DOI: 10.1109/AEEES56888.2023.10114275
Yuqiao Jia, Zheng Li, Wenbo Li, Xinyao Zhu, Z. Cui
With the increasing penetration of distributed generation and flexible load in the distribution network, power generation and consumption plans made by different stakeholders may lead to uneven distribution of power flow in space and overload of some lines. For the increasingly large data centers in the flexible load, this paper proposes a day-ahead optimal operation strategy of distribution network based on its energy consumption characteristics and guidance price mechanism. First of all, combined with the CPU dynamic frequency modulation technology, the energy consumption characteristics of the data center and the best working mode of the internal server are analyzed. On this basis, the principle of equal consumption micro-increase rate is promoted from the perspective of economy, and the guidance price is formulated according to the profit seeking behavior of the data center operators. Guide the data load and the data center energy consumption, and realize the optimal operation of the distribution network in the day-ahead through the information interaction between the grid company and the data center operators. Finally, the IEEE-33 bus distribution network system embedded with the data centers is used for simulation and analysis. The results eliminate part of the lines overload caused by the original data load plan, and verify the effectiveness of the proposed strategy.
{"title":"Day-Ahead Optimal Operation Strategy of Distribution Network Based on Energy Consumption Characteristics of Data Centers and Guidance Price Mechanism","authors":"Yuqiao Jia, Zheng Li, Wenbo Li, Xinyao Zhu, Z. Cui","doi":"10.1109/AEEES56888.2023.10114275","DOIUrl":"https://doi.org/10.1109/AEEES56888.2023.10114275","url":null,"abstract":"With the increasing penetration of distributed generation and flexible load in the distribution network, power generation and consumption plans made by different stakeholders may lead to uneven distribution of power flow in space and overload of some lines. For the increasingly large data centers in the flexible load, this paper proposes a day-ahead optimal operation strategy of distribution network based on its energy consumption characteristics and guidance price mechanism. First of all, combined with the CPU dynamic frequency modulation technology, the energy consumption characteristics of the data center and the best working mode of the internal server are analyzed. On this basis, the principle of equal consumption micro-increase rate is promoted from the perspective of economy, and the guidance price is formulated according to the profit seeking behavior of the data center operators. Guide the data load and the data center energy consumption, and realize the optimal operation of the distribution network in the day-ahead through the information interaction between the grid company and the data center operators. Finally, the IEEE-33 bus distribution network system embedded with the data centers is used for simulation and analysis. The results eliminate part of the lines overload caused by the original data load plan, and verify the effectiveness of the proposed strategy.","PeriodicalId":272114,"journal":{"name":"2023 5th Asia Energy and Electrical Engineering Symposium (AEEES)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125490001","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 : 2023-03-23DOI: 10.1109/AEEES56888.2023.10114100
Zhiyong Duan, Jing Wang, Anzhe Yi, Yan-hu Chen
Due to its strong fault resistance and greater system stability, the constant current (CC) observation network has gradually superseded the constant voltage (CV) observation network in engineering practice. Among the core functions of the seafloor observation network is the node power conversion technology. While this technology has notable advantages, it also faces several problems that constrain its practical applications, such as a complex control strategy and low efficiency of power balancer in the existing module stacking scheme. To overcome these problems, this paper proposes a load-sensing power conversion technology scheme, which uses a digital control strategy to dynamically adjust the power of the power balancer. By adopting the strategy of power equalization and unified control for each module in the system, it can control multiple modules like a single module, thus providing a solution for high-power observation network nodes.
{"title":"A Load Sensitive Method for Constant Current Seafloor Observatory Based on Multi-module-stack CC/CV Converter","authors":"Zhiyong Duan, Jing Wang, Anzhe Yi, Yan-hu Chen","doi":"10.1109/AEEES56888.2023.10114100","DOIUrl":"https://doi.org/10.1109/AEEES56888.2023.10114100","url":null,"abstract":"Due to its strong fault resistance and greater system stability, the constant current (CC) observation network has gradually superseded the constant voltage (CV) observation network in engineering practice. Among the core functions of the seafloor observation network is the node power conversion technology. While this technology has notable advantages, it also faces several problems that constrain its practical applications, such as a complex control strategy and low efficiency of power balancer in the existing module stacking scheme. To overcome these problems, this paper proposes a load-sensing power conversion technology scheme, which uses a digital control strategy to dynamically adjust the power of the power balancer. By adopting the strategy of power equalization and unified control for each module in the system, it can control multiple modules like a single module, thus providing a solution for high-power observation network nodes.","PeriodicalId":272114,"journal":{"name":"2023 5th Asia Energy and Electrical Engineering Symposium (AEEES)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126816183","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 : 2023-03-23DOI: 10.1109/AEEES56888.2023.10114310
Ting Xie, Wenxun Zhang
The high voltage zone of electric power is a typical high-risk work area. It is harm to the safety of operators and maintainers especially in the case of leakage and arcing. It is especially important for the electrical power safety to track the worker’s inspection, monitor the operation behavior and follow the current position. The complicated environment limited the application of monitoring instruments. This paper proposes an operator positioning method in high voltage zone based on the CNN method. Firstly, a homography transformation algorithm is used to transfer the 2D and 3D scenes to enhance detection accuracy. Secondly, a graph sequence detecting method based on YOLO is used on the purpose of fast detection. Finally, a trajectory prediction and tracking method is proposed for the early warning. The onsite testing results show the precision and speed of proposed method compared with existing method.
{"title":"Fast Intrusion Detection in High Voltage Zone of Electric Power Operations Based on YOLO and Homography Transformation Algorithm","authors":"Ting Xie, Wenxun Zhang","doi":"10.1109/AEEES56888.2023.10114310","DOIUrl":"https://doi.org/10.1109/AEEES56888.2023.10114310","url":null,"abstract":"The high voltage zone of electric power is a typical high-risk work area. It is harm to the safety of operators and maintainers especially in the case of leakage and arcing. It is especially important for the electrical power safety to track the worker’s inspection, monitor the operation behavior and follow the current position. The complicated environment limited the application of monitoring instruments. This paper proposes an operator positioning method in high voltage zone based on the CNN method. Firstly, a homography transformation algorithm is used to transfer the 2D and 3D scenes to enhance detection accuracy. Secondly, a graph sequence detecting method based on YOLO is used on the purpose of fast detection. Finally, a trajectory prediction and tracking method is proposed for the early warning. The onsite testing results show the precision and speed of proposed method compared with existing method.","PeriodicalId":272114,"journal":{"name":"2023 5th Asia Energy and Electrical Engineering Symposium (AEEES)","volume":"112 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114063847","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 Wind-Thermal-Combined (WTC) system is an effective measure to promote the utilization of wind power. However, the low voltage ride through (LVRT) control of wind farms (WFs) leads to complex dynamics, so as to affect the power angle stability of the WTC system. In this paper, a transient analytical model is first constructed. Then, the impact of WF’s LVRT control on the transient stability of the system is analyzed based on the equal-area criterion at the aspects of the active and reactive power characteristics. Finally, the conclusions are verified through simulation. Results show that the high-level low voltage ride-through (LVRT) control strategy of wind farms can improve the transient stability of the WTC system.
{"title":"Transient Stability Analysis of Wind-Thermal-Combined Systems Considering Wind Farm Dynamics","authors":"Jing Luo, Bingfang Li, Songhao Yang, Haitang Bu, Lihu Jia, Lie Hao","doi":"10.1109/AEEES56888.2023.10114078","DOIUrl":"https://doi.org/10.1109/AEEES56888.2023.10114078","url":null,"abstract":"The Wind-Thermal-Combined (WTC) system is an effective measure to promote the utilization of wind power. However, the low voltage ride through (LVRT) control of wind farms (WFs) leads to complex dynamics, so as to affect the power angle stability of the WTC system. In this paper, a transient analytical model is first constructed. Then, the impact of WF’s LVRT control on the transient stability of the system is analyzed based on the equal-area criterion at the aspects of the active and reactive power characteristics. Finally, the conclusions are verified through simulation. Results show that the high-level low voltage ride-through (LVRT) control strategy of wind farms can improve the transient stability of the WTC system.","PeriodicalId":272114,"journal":{"name":"2023 5th Asia Energy and Electrical Engineering Symposium (AEEES)","volume":"19 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120909354","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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