Non fault lightning strike is an important reason for the inconsistent action of double sets of protection for 500kV and above lines. The protection identifies the waveform of non fault lightning strike as the fault in the area. The differential protection of partial line protection acts, and the line is cut off to cause short-time power loss of the line, which affects the protection reliability and power supply reliability. In this paper, the influence of non fault lightning strike on relay protection equipment is analyzed and studied. Combined with the actual lightning strike fault, the small step simulation system of RTDS platform is used to standardize the lightning current modeling, and the line transmission model is established according to the tower parameters and equipment parameters of the actual line. Inject lightning wave into the line to study the propagation of lightning wave on the line. The lightning wave appears multiple catadioptric reflections between the two stations. By simulating the sampling frequency of the protection device, the sampling simulation waveform of the protection is obtained, which is compared with the actual lightning waveform. By changing the position of the injected lightning wave, the law and waveform characteristics are analyzed, and the amplitude and pulse width are summarized. In this paper, an improved method for lightning protection of protection device is proposed, and the ability of lightning protection against maloperation is enhanced by adding voltage criterion, raising protection threshold or extending protection setting value, or adding waveform identification criterion. Through the test of the protection prototype, the improved method is tested and evaluated.
{"title":"Research on Analysis and Application of Lightning Current Model in Power System and Protection Improvement method","authors":"Shaoming Zheng, Rui Chen, Yimin Liu, Siqi Zhang, Dan Liu, Tianxiao Huang","doi":"10.1109/ACFPE56003.2022.9952279","DOIUrl":"https://doi.org/10.1109/ACFPE56003.2022.9952279","url":null,"abstract":"Non fault lightning strike is an important reason for the inconsistent action of double sets of protection for 500kV and above lines. The protection identifies the waveform of non fault lightning strike as the fault in the area. The differential protection of partial line protection acts, and the line is cut off to cause short-time power loss of the line, which affects the protection reliability and power supply reliability. In this paper, the influence of non fault lightning strike on relay protection equipment is analyzed and studied. Combined with the actual lightning strike fault, the small step simulation system of RTDS platform is used to standardize the lightning current modeling, and the line transmission model is established according to the tower parameters and equipment parameters of the actual line. Inject lightning wave into the line to study the propagation of lightning wave on the line. The lightning wave appears multiple catadioptric reflections between the two stations. By simulating the sampling frequency of the protection device, the sampling simulation waveform of the protection is obtained, which is compared with the actual lightning waveform. By changing the position of the injected lightning wave, the law and waveform characteristics are analyzed, and the amplitude and pulse width are summarized. In this paper, an improved method for lightning protection of protection device is proposed, and the ability of lightning protection against maloperation is enhanced by adding voltage criterion, raising protection threshold or extending protection setting value, or adding waveform identification criterion. Through the test of the protection prototype, the improved method is tested and evaluated.","PeriodicalId":198086,"journal":{"name":"2022 Asian Conference on Frontiers of Power and Energy (ACFPE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128723735","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 : 2022-10-01DOI: 10.1109/ACFPE56003.2022.9952239
Shuqing Tan, Yinru Bai, Xuping Wang, Pan Liu
With the development of aerospace, electric propulsion ships, and new energy vehicles which have extremely demanding requirements for safety and reliability, the requirements for the safety and reliability of their internal drive motors are becoming higher and higher. The motor is required to operate fault-tolerant and maintain the original output capacity in the event of sudden operation faults, and stator winding inter-turn short-circuit fault (ITSCF) is a frequent fault. An automatic fault-tolerant permanent magnet synchronous motor (PMSM) for ITSCF is proposed to solve the problem of motor torque decline and three-phase current imbalance when ITSCF occurs. Aiming at this special motor, an inter-turn short circuit current detection method is proposed. This paper introduces a special structure of this motor. The short circuit current and number of turns are obtained by adding additional coils and analyzing the leakage magnetic circuit of the motor. Then the finite element model is established by ANSYS, and the short circuit situation with different turns is simulated to verify the correctness of the experiment.
{"title":"The detection method of inter-turn short-circuit current of in-phase coil compensation axial permanent magnet synchronous fault-tolerant motor","authors":"Shuqing Tan, Yinru Bai, Xuping Wang, Pan Liu","doi":"10.1109/ACFPE56003.2022.9952239","DOIUrl":"https://doi.org/10.1109/ACFPE56003.2022.9952239","url":null,"abstract":"With the development of aerospace, electric propulsion ships, and new energy vehicles which have extremely demanding requirements for safety and reliability, the requirements for the safety and reliability of their internal drive motors are becoming higher and higher. The motor is required to operate fault-tolerant and maintain the original output capacity in the event of sudden operation faults, and stator winding inter-turn short-circuit fault (ITSCF) is a frequent fault. An automatic fault-tolerant permanent magnet synchronous motor (PMSM) for ITSCF is proposed to solve the problem of motor torque decline and three-phase current imbalance when ITSCF occurs. Aiming at this special motor, an inter-turn short circuit current detection method is proposed. This paper introduces a special structure of this motor. The short circuit current and number of turns are obtained by adding additional coils and analyzing the leakage magnetic circuit of the motor. Then the finite element model is established by ANSYS, and the short circuit situation with different turns is simulated to verify the correctness of the experiment.","PeriodicalId":198086,"journal":{"name":"2022 Asian Conference on Frontiers of Power and Energy (ACFPE)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127092645","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 : 2022-10-01DOI: 10.1109/ACFPE56003.2022.9952212
Xuekai Hu, Qian Zhang, Lei Wang, Qi Zhang, Shaobo Yang, Zhu-liang Wang
Recently, distributed photovoltaic has exploded in growth, the different power supply characteristics and the formation of multi-terminal power supply network have had a great impact on the original distribution network protection. So the distance protection of collecting line with distributed photovoltaic is studied. Firstly, we analyze whether the faulty phase can be reliably identified from the phase selection component. And then it studies the adaptability of the impedance component according to three-phase short circuit, two-phase short circuit and ground fault. Finally, the simulation verification is performed based on RTDS. The simulation results show that the positive and negative sequence equivalent impedances of the distributed photovoltaic side are no longer equal, which results in the failure of the commonly used phase current difference mutation in phase selection. And when various types of faults occur in the collecting line, a large negative reactance will appear in the measurement impedance of the distributed photovoltaic side, causing the impedance component to refuse to operate.
{"title":"Study on the Influence of Distributed Photovoltaic on Distance Protection of Collecting Line","authors":"Xuekai Hu, Qian Zhang, Lei Wang, Qi Zhang, Shaobo Yang, Zhu-liang Wang","doi":"10.1109/ACFPE56003.2022.9952212","DOIUrl":"https://doi.org/10.1109/ACFPE56003.2022.9952212","url":null,"abstract":"Recently, distributed photovoltaic has exploded in growth, the different power supply characteristics and the formation of multi-terminal power supply network have had a great impact on the original distribution network protection. So the distance protection of collecting line with distributed photovoltaic is studied. Firstly, we analyze whether the faulty phase can be reliably identified from the phase selection component. And then it studies the adaptability of the impedance component according to three-phase short circuit, two-phase short circuit and ground fault. Finally, the simulation verification is performed based on RTDS. The simulation results show that the positive and negative sequence equivalent impedances of the distributed photovoltaic side are no longer equal, which results in the failure of the commonly used phase current difference mutation in phase selection. And when various types of faults occur in the collecting line, a large negative reactance will appear in the measurement impedance of the distributed photovoltaic side, causing the impedance component to refuse to operate.","PeriodicalId":198086,"journal":{"name":"2022 Asian Conference on Frontiers of Power and Energy (ACFPE)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126533755","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 : 2022-10-01DOI: 10.1109/ACFPE56003.2022.9952260
Yunyang Xu, Kangkang Wang, Wei Wei, Xi Wang, Junyong Liu, Kangwen Li
A machine learning-assisted optimization method is proposed in this paper to coordinate the preventive generation rescheduling and the corrective generatioload shedding for power system transient stability enhancement. The coordinated control problem is firstly formulated as an extended security constrained optimal power flow (SCOPF) model that includes the corrective generationload shedding as controlling measures. Considering that the conventional methods are computationally intensive due to the repeated time-domain simulation (TDS)-based transient stability assessment (TSA), the neural process (NP) is proposed to develop the machine learning-based predictor for fast and simulation-free TSA. With the neural process-based predictor to be the surrogate model for fast TSA, the surrogate-assisted evolution programming approach is proposed for online coordinated preventive and corrective control against power system transient instability. The effectiveness of the proposed machine learning-assisted optimization method is demonstrated by the case study on the IEEE 39-bus system and numerical results show that the proposed method can generate the effective coordinated control actions for transient instability mitigation.
{"title":"Coordinated Preventive-Corrective Control for Power System Transient Stability Enhancement Based on Machine Learning-assisted Optimization","authors":"Yunyang Xu, Kangkang Wang, Wei Wei, Xi Wang, Junyong Liu, Kangwen Li","doi":"10.1109/ACFPE56003.2022.9952260","DOIUrl":"https://doi.org/10.1109/ACFPE56003.2022.9952260","url":null,"abstract":"A machine learning-assisted optimization method is proposed in this paper to coordinate the preventive generation rescheduling and the corrective generatioload shedding for power system transient stability enhancement. The coordinated control problem is firstly formulated as an extended security constrained optimal power flow (SCOPF) model that includes the corrective generationload shedding as controlling measures. Considering that the conventional methods are computationally intensive due to the repeated time-domain simulation (TDS)-based transient stability assessment (TSA), the neural process (NP) is proposed to develop the machine learning-based predictor for fast and simulation-free TSA. With the neural process-based predictor to be the surrogate model for fast TSA, the surrogate-assisted evolution programming approach is proposed for online coordinated preventive and corrective control against power system transient instability. The effectiveness of the proposed machine learning-assisted optimization method is demonstrated by the case study on the IEEE 39-bus system and numerical results show that the proposed method can generate the effective coordinated control actions for transient instability mitigation.","PeriodicalId":198086,"journal":{"name":"2022 Asian Conference on Frontiers of Power and Energy (ACFPE)","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125744409","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 : 2022-10-01DOI: 10.1109/ACFPE56003.2022.9952275
Bingxin Wu, Feiyan Qin
Lithium-ion batteries have received widespread use by electric vehicles because of their high energy density, and so forth. Accurate estimation of state of charge (SOC) is very important for the high efficiency use and lifetime prolong of batteries. In this work, a strong tracking unscented Kalman filter method using multiple sub-optimal fading factors (MSTUKF) is employed to estimate lithium ion battery SOC. This method introduces multiple sub-optimal fading factors to traditional unscented Kalman filter algorithm, which effectively solves the robustness problem of the unscented Kalman filter method facing with the state mutation, and the model mismatch for battery degradation. Simulation results prove that this MSTUKF based method has a smaller prediction error rate than the traditional unscented Kalman filter method. The results also showed that this MSTUKF based method can be used for lithium-ion battery management of electric vehicles.
{"title":"A MSTUKF-based Technique for SOC Estimation of Li-ion Batteries for Electric Vehicles","authors":"Bingxin Wu, Feiyan Qin","doi":"10.1109/ACFPE56003.2022.9952275","DOIUrl":"https://doi.org/10.1109/ACFPE56003.2022.9952275","url":null,"abstract":"Lithium-ion batteries have received widespread use by electric vehicles because of their high energy density, and so forth. Accurate estimation of state of charge (SOC) is very important for the high efficiency use and lifetime prolong of batteries. In this work, a strong tracking unscented Kalman filter method using multiple sub-optimal fading factors (MSTUKF) is employed to estimate lithium ion battery SOC. This method introduces multiple sub-optimal fading factors to traditional unscented Kalman filter algorithm, which effectively solves the robustness problem of the unscented Kalman filter method facing with the state mutation, and the model mismatch for battery degradation. Simulation results prove that this MSTUKF based method has a smaller prediction error rate than the traditional unscented Kalman filter method. The results also showed that this MSTUKF based method can be used for lithium-ion battery management of electric vehicles.","PeriodicalId":198086,"journal":{"name":"2022 Asian Conference on Frontiers of Power and Energy (ACFPE)","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127741985","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 : 2022-10-01DOI: 10.1109/ACFPE56003.2022.9952247
X. Wu, Wenyun Luo, Hua Gao, Lixiong Xu
Double-Carbon Policy has created a major change to the development of power system, and new power system with high percentage of clean energy has become the main goal of China's future power industry development. Under the background, the flexibility and stability of thermal power are particularly prominent because wind power and photovoltaic have high uncertainty. However, carbon emissions from thermal power generation have always been at high levels in the past, which puts great pressure on power systems to reduce carbon emissions. Therefore, this paper proposes a model of coordinated planning and profit distribution of wind, solar and thermal power considering the low-carbon transformation of thermal power. Shapley value method is used to distribute profits, the piecewise linearization strategy is used to solve the model, and core theory is used to verify the existence of cooperative games. The proposed method is applied to an example to verify the effectiveness. The profits of various market players can be guaranteed, and the low-carbon transformation strategy of thermal power units can reduce the overall carbon emissions of the power system while ensuring economic efficiency.
{"title":"Coordinated Planning and Profit Distribution of Wind, Solar and Thermal Power Considering the Low-carbon Transformation of Thermal Power","authors":"X. Wu, Wenyun Luo, Hua Gao, Lixiong Xu","doi":"10.1109/ACFPE56003.2022.9952247","DOIUrl":"https://doi.org/10.1109/ACFPE56003.2022.9952247","url":null,"abstract":"Double-Carbon Policy has created a major change to the development of power system, and new power system with high percentage of clean energy has become the main goal of China's future power industry development. Under the background, the flexibility and stability of thermal power are particularly prominent because wind power and photovoltaic have high uncertainty. However, carbon emissions from thermal power generation have always been at high levels in the past, which puts great pressure on power systems to reduce carbon emissions. Therefore, this paper proposes a model of coordinated planning and profit distribution of wind, solar and thermal power considering the low-carbon transformation of thermal power. Shapley value method is used to distribute profits, the piecewise linearization strategy is used to solve the model, and core theory is used to verify the existence of cooperative games. The proposed method is applied to an example to verify the effectiveness. The profits of various market players can be guaranteed, and the low-carbon transformation strategy of thermal power units can reduce the overall carbon emissions of the power system while ensuring economic efficiency.","PeriodicalId":198086,"journal":{"name":"2022 Asian Conference on Frontiers of Power and Energy (ACFPE)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133737627","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 : 2022-10-01DOI: 10.1109/ACFPE56003.2022.9952300
Xiru Mao, Zheng Cheng, Yu Zhou
Aiming at the problems that traditional network security protection methods ignore the timeliness of intrusion and information leakage, a network security protection method based on deep learning in power grid information construction is proposed. Firstly, combined with the development needs of modern power grid, the overall architecture of information power grid is constructed to achieve multi service integration. Then, it quantifies the network information risk based on the attack graph and sends it into the Transformer model for analysis to detect the type of network attack and the location of attack nodes. Finally, the terminal active immune structure of trusted computing is designed to encrypt the information and complete the optimization of power grid information leakage prevention technology. Based on the KDD '99 data set, the experimental demonstration of the proposed method is carried out. The results show that the precision, recall and F1 value of the proposed method have reached 98.031%, 96.574% and 97.293% respectively, and the number of information leakage has been significantly reduced, effectively improving the security protection capability of the power grid.
{"title":"Network Security Protection Based on Deep Learning in Power Grid Information Construction","authors":"Xiru Mao, Zheng Cheng, Yu Zhou","doi":"10.1109/ACFPE56003.2022.9952300","DOIUrl":"https://doi.org/10.1109/ACFPE56003.2022.9952300","url":null,"abstract":"Aiming at the problems that traditional network security protection methods ignore the timeliness of intrusion and information leakage, a network security protection method based on deep learning in power grid information construction is proposed. Firstly, combined with the development needs of modern power grid, the overall architecture of information power grid is constructed to achieve multi service integration. Then, it quantifies the network information risk based on the attack graph and sends it into the Transformer model for analysis to detect the type of network attack and the location of attack nodes. Finally, the terminal active immune structure of trusted computing is designed to encrypt the information and complete the optimization of power grid information leakage prevention technology. Based on the KDD '99 data set, the experimental demonstration of the proposed method is carried out. The results show that the precision, recall and F1 value of the proposed method have reached 98.031%, 96.574% and 97.293% respectively, and the number of information leakage has been significantly reduced, effectively improving the security protection capability of the power grid.","PeriodicalId":198086,"journal":{"name":"2022 Asian Conference on Frontiers of Power and Energy (ACFPE)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134274602","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 : 2022-10-01DOI: 10.1109/ACFPE56003.2022.9952333
Jing Yang, Wei Wang, Lei Li, W. Weng, Tao Yu, Yijun Huang
In 2022, a new round of power market construction will be completed. At the same time, the reform of transmission and distribution prices and the proportion of market-based transactions will gradually increase, and the second batch of spot pilot projects in the power market will be constructed, providing strong support for the sustainable development of society and economy. The construction of Chinese power market is in its infancy, and the market operation mode, transaction mechanism and implementation path are still unclear. Therefore, the development of the electricity market should learn from the construction history of foreign electricity markets and combine the current situation in China firstly, by distinguishing the five main subjects of electricity market information interactive evaluation and proposing optimization plans, and finally deeply explore the information interaction evaluation model for serving electricity market transactions. The information interaction evaluation model is used as a booster in the development process of the electricity market, so that the overall market situation can be seen in the process of electricity market information interaction, and a new situation of rapid market development can be achieved.
{"title":"Research on the Information Interaction Evaluation Model for Serving Power Market Transactions","authors":"Jing Yang, Wei Wang, Lei Li, W. Weng, Tao Yu, Yijun Huang","doi":"10.1109/ACFPE56003.2022.9952333","DOIUrl":"https://doi.org/10.1109/ACFPE56003.2022.9952333","url":null,"abstract":"In 2022, a new round of power market construction will be completed. At the same time, the reform of transmission and distribution prices and the proportion of market-based transactions will gradually increase, and the second batch of spot pilot projects in the power market will be constructed, providing strong support for the sustainable development of society and economy. The construction of Chinese power market is in its infancy, and the market operation mode, transaction mechanism and implementation path are still unclear. Therefore, the development of the electricity market should learn from the construction history of foreign electricity markets and combine the current situation in China firstly, by distinguishing the five main subjects of electricity market information interactive evaluation and proposing optimization plans, and finally deeply explore the information interaction evaluation model for serving electricity market transactions. The information interaction evaluation model is used as a booster in the development process of the electricity market, so that the overall market situation can be seen in the process of electricity market information interaction, and a new situation of rapid market development can be achieved.","PeriodicalId":198086,"journal":{"name":"2022 Asian Conference on Frontiers of Power and Energy (ACFPE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130088666","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 : 2022-10-01DOI: 10.1109/ACFPE56003.2022.9952285
Jianqin Li, Junhui Hu, Jingnan Shi, Haibo Wang
Under the environmental requirements of three-dimensional design, the coding of the power grid engineering identification system can no longer adapt to the new technical environment and construction needs. In order to be suitable for the three-dimensional design technology environment and meet the requirements of engineering life-cycle management, this paper studies the demand analysis, classification and coding rules. In order to be suitable for the three-dimensional design technology environment and meet the requirements of engineering life-cycle management, this paper studies the demand analysis, classification and coding rules, and In order to be suitable for the three-dimensional design technology environment and meet the requirements of engineering life-cycle management, this paper studies the demand analysis, classification and coding rules, and application scenarios of substation engineering model classification and coding based on three-dimensional design. model classification not only needs to reflect the system composition and hierarchical relationship of substation engineering, but the standardized hierarchical classification Model classification not only needs to reflect the system composition and hierarchical relationship of substation engineering, but the standardized hierarchical classification is also a necessary condition to complete the non-destructive interaction of design models. The classification and coding design principles of three- dimensional design models of substations are put forward, and three-dimensional model coding application methods are proposed, such as identifying model types and equipment asset information, technical and economic financing and cost preparation, and engineering construction The three dimensional model coding application methods are proposed, such as identifying model types and equipment asset information, technical and economic financing and cost preparation, and engineering construction management.
{"title":"Research on classification and coding technology of substation engineering model based on 3D design","authors":"Jianqin Li, Junhui Hu, Jingnan Shi, Haibo Wang","doi":"10.1109/ACFPE56003.2022.9952285","DOIUrl":"https://doi.org/10.1109/ACFPE56003.2022.9952285","url":null,"abstract":"Under the environmental requirements of three-dimensional design, the coding of the power grid engineering identification system can no longer adapt to the new technical environment and construction needs. In order to be suitable for the three-dimensional design technology environment and meet the requirements of engineering life-cycle management, this paper studies the demand analysis, classification and coding rules. In order to be suitable for the three-dimensional design technology environment and meet the requirements of engineering life-cycle management, this paper studies the demand analysis, classification and coding rules, and In order to be suitable for the three-dimensional design technology environment and meet the requirements of engineering life-cycle management, this paper studies the demand analysis, classification and coding rules, and application scenarios of substation engineering model classification and coding based on three-dimensional design. model classification not only needs to reflect the system composition and hierarchical relationship of substation engineering, but the standardized hierarchical classification Model classification not only needs to reflect the system composition and hierarchical relationship of substation engineering, but the standardized hierarchical classification is also a necessary condition to complete the non-destructive interaction of design models. The classification and coding design principles of three- dimensional design models of substations are put forward, and three-dimensional model coding application methods are proposed, such as identifying model types and equipment asset information, technical and economic financing and cost preparation, and engineering construction The three dimensional model coding application methods are proposed, such as identifying model types and equipment asset information, technical and economic financing and cost preparation, and engineering construction management.","PeriodicalId":198086,"journal":{"name":"2022 Asian Conference on Frontiers of Power and Energy (ACFPE)","volume":"458 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132207712","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 compressed air foam system (CAFS) of the ultra-high voltage (UHV) converter station belongs to a new type of fire extinguishing system, which has less engineering application experience and lacks mature and effective performance diagnosis methods. With the goal of ensuring the operation reliability of the fixed compressed air foam system of the UHV converter station, the key parameters that affect the performance of compressed air foam (CAF) generators and the changes in foam performance in long-distance conveying pipelines of converter stations are identified, and the failure modes of the key components of the compressed air foam generating device are analyzed. Combined with the actual layout characteristics of the UHV converter station project, the CAFS simulation operation test and test injection are carried out, the CAFS generation device and the pipeline network transportation performance diagnosis technology of the UHV converter station are carried out, and the general method for the CAFS performance diagnosis of the UHV converter station is researched.
{"title":"Research on Compressed Air Foam System Performance Diagnosis Combined with Engineering Practice","authors":"Xianling Fu, Jiaqing Zhang, Jia Xie, Tiantian Tan, Lingxin He, Yi Guo","doi":"10.1109/ACFPE56003.2022.9952227","DOIUrl":"https://doi.org/10.1109/ACFPE56003.2022.9952227","url":null,"abstract":"The compressed air foam system (CAFS) of the ultra-high voltage (UHV) converter station belongs to a new type of fire extinguishing system, which has less engineering application experience and lacks mature and effective performance diagnosis methods. With the goal of ensuring the operation reliability of the fixed compressed air foam system of the UHV converter station, the key parameters that affect the performance of compressed air foam (CAF) generators and the changes in foam performance in long-distance conveying pipelines of converter stations are identified, and the failure modes of the key components of the compressed air foam generating device are analyzed. Combined with the actual layout characteristics of the UHV converter station project, the CAFS simulation operation test and test injection are carried out, the CAFS generation device and the pipeline network transportation performance diagnosis technology of the UHV converter station are carried out, and the general method for the CAFS performance diagnosis of the UHV converter station is researched.","PeriodicalId":198086,"journal":{"name":"2022 Asian Conference on Frontiers of Power and Energy (ACFPE)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132398925","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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