Pub Date : 2021-05-28DOI: 10.1109/CIEEC50170.2021.9510259
Lei Gao, Xuan Zhang, Yang Tian, Zhiqiang He, Xiaohui Hu, Zhuohong Pan
Large grounding devices using overhead lines to measure grounding impedance have the problem of difficulty in accurately assessing line mutual inductance. To address this problem, firstly, a theoretical model of arbitrary line mutual inductance during grounding measurement is derived theoretically, and a numerical calculation scheme for the line mutual inductance model is proposed based on the Heppe mutual inductance calculation formula and the complex image method. Secondly, the application of the thesis method is realized using an actual measurement case of a 500 kV power station and the results are compared with those of three other different penetration depth approximation formulas. The results show that care must be taken when using the line for grounding measurements because earth loss can cause the line mutual inductance angle to be less than 90 degrees. The thesis method is a rigorous benchmark method, and the only other method that can be used for mutual inductance analysis when measuring grounding impedance on overhead lines is the Deri penetration depth formula, which deviates by about 3% on engineering cases. The thesis method helps to fundamentally remove the error caused by the mutual inductance factor of leads in grounding measurement, and provides a valid reference for accurate grounding impedance calibration.
{"title":"Mutual Inductance Analysis of Overhead Lines During Grounding Impedance Measurement","authors":"Lei Gao, Xuan Zhang, Yang Tian, Zhiqiang He, Xiaohui Hu, Zhuohong Pan","doi":"10.1109/CIEEC50170.2021.9510259","DOIUrl":"https://doi.org/10.1109/CIEEC50170.2021.9510259","url":null,"abstract":"Large grounding devices using overhead lines to measure grounding impedance have the problem of difficulty in accurately assessing line mutual inductance. To address this problem, firstly, a theoretical model of arbitrary line mutual inductance during grounding measurement is derived theoretically, and a numerical calculation scheme for the line mutual inductance model is proposed based on the Heppe mutual inductance calculation formula and the complex image method. Secondly, the application of the thesis method is realized using an actual measurement case of a 500 kV power station and the results are compared with those of three other different penetration depth approximation formulas. The results show that care must be taken when using the line for grounding measurements because earth loss can cause the line mutual inductance angle to be less than 90 degrees. The thesis method is a rigorous benchmark method, and the only other method that can be used for mutual inductance analysis when measuring grounding impedance on overhead lines is the Deri penetration depth formula, which deviates by about 3% on engineering cases. The thesis method helps to fundamentally remove the error caused by the mutual inductance factor of leads in grounding measurement, and provides a valid reference for accurate grounding impedance calibration.","PeriodicalId":110429,"journal":{"name":"2021 IEEE 4th International Electrical and Energy Conference (CIEEC)","volume":"156 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122826974","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 : 2021-05-28DOI: 10.1109/CIEEC50170.2021.9510411
Qiaopo Xiong, Hengyang Liu, S. Rao, Zhiqing Luo, Junyao Tu, Wubin Kong, Xunyu Duan, Zhike Li, Z. Zhong
The crosstalk voltage is the result of the combined effect of the displacement current generated by the gate-drain capacitance and the induced voltage introduced by the common source inductance. When considering common-source inductance, the relationship between the driving circuit impedance and the spikes of crosstalk voltage is no longer a single correlation. This paper starts with the crosstalk phenomenon in the double pulse test (DPT) circuit, introduces the causes of the crosstalk phenomenon in detail, and constructs the equivalent circuit of the drive loop to obtain the mathematical expression of the crosstalk voltage calculation. Finally, through mathematical analysis, the influence of gate-source capacitance and gate resistance on the spikes of crosstalk voltage is obtained, which provides guidance for the design of driving parameters.
{"title":"Detailed Analysis and Suppression of Crosstalk Voltage with SiC MOSFETs Considering Common-Source Inductance","authors":"Qiaopo Xiong, Hengyang Liu, S. Rao, Zhiqing Luo, Junyao Tu, Wubin Kong, Xunyu Duan, Zhike Li, Z. Zhong","doi":"10.1109/CIEEC50170.2021.9510411","DOIUrl":"https://doi.org/10.1109/CIEEC50170.2021.9510411","url":null,"abstract":"The crosstalk voltage is the result of the combined effect of the displacement current generated by the gate-drain capacitance and the induced voltage introduced by the common source inductance. When considering common-source inductance, the relationship between the driving circuit impedance and the spikes of crosstalk voltage is no longer a single correlation. This paper starts with the crosstalk phenomenon in the double pulse test (DPT) circuit, introduces the causes of the crosstalk phenomenon in detail, and constructs the equivalent circuit of the drive loop to obtain the mathematical expression of the crosstalk voltage calculation. Finally, through mathematical analysis, the influence of gate-source capacitance and gate resistance on the spikes of crosstalk voltage is obtained, which provides guidance for the design of driving parameters.","PeriodicalId":110429,"journal":{"name":"2021 IEEE 4th International Electrical and Energy Conference (CIEEC)","volume":"17 8","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114033842","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 : 2021-05-28DOI: 10.1109/CIEEC50170.2021.9510530
Jiayu Liu, Qiqi Zhang, Jiaxu Li, Ying Wang
Coordinating multiple local power sources can restore critical loads after the major outages caused by extreme events. Maintaining radial topology after restoration is essential for distribution system, while determining the topology for online decision is a challenge. In this paper, a graph theory-based iterative heuristic method to determine the radial topology applied in distribution system restoration is proposed. The proposed method is validated by one snapshot and multi-period critical distribution system restoration models on different cases. The case studies indic ate that the proposed method can determine radial topology in a few seconds and ensure the restoration capacity.
{"title":"An Iterative Heuristic Method to Determine Radial Topology for Distribution System Restoration","authors":"Jiayu Liu, Qiqi Zhang, Jiaxu Li, Ying Wang","doi":"10.1109/CIEEC50170.2021.9510530","DOIUrl":"https://doi.org/10.1109/CIEEC50170.2021.9510530","url":null,"abstract":"Coordinating multiple local power sources can restore critical loads after the major outages caused by extreme events. Maintaining radial topology after restoration is essential for distribution system, while determining the topology for online decision is a challenge. In this paper, a graph theory-based iterative heuristic method to determine the radial topology applied in distribution system restoration is proposed. The proposed method is validated by one snapshot and multi-period critical distribution system restoration models on different cases. The case studies indic ate that the proposed method can determine radial topology in a few seconds and ensure the restoration capacity.","PeriodicalId":110429,"journal":{"name":"2021 IEEE 4th International Electrical and Energy Conference (CIEEC)","volume":"162 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114408796","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 : 2021-05-28DOI: 10.1109/cieec50170.2021.9510282
Jinyi Shen, Chongru Liu, Chenbo Su, Huan Li, Wei Wei
The state-space analytical model can reflect the high voltage direct current (HVDC) transmission system's transient characteristics quickly and accurately. In order to overcome the problems of the traditional state-space model. For example, the inaccuracy of the DC current when the sudden change of current in the snubber circuit. Therefore a state-space analytical algorithm considering the thyristor snubber circuit is proposed. In this paper, the snubber current is added as the state variable to the state equation of the converter. And the coefficient matrix is used to represent the initial value of the state variable under different working conditions. Besides, the implicit trapezoid method is used for calculation, which effectively improves the calculation accuracy of the differential equation of the primary equipment. According to the data exchange between the control system and primary equipment, a complete HVDC analytical model consists of the converter, DC line, and control system is established using the state-space theory and solved by the backward Euler method. Furthermore, the simulation results in PSCAD/EMTDC proved the accuracy and validity of the proposed model.
{"title":"Deepening Research on State Space Analytical Model of HVDC Transmission System","authors":"Jinyi Shen, Chongru Liu, Chenbo Su, Huan Li, Wei Wei","doi":"10.1109/cieec50170.2021.9510282","DOIUrl":"https://doi.org/10.1109/cieec50170.2021.9510282","url":null,"abstract":"The state-space analytical model can reflect the high voltage direct current (HVDC) transmission system's transient characteristics quickly and accurately. In order to overcome the problems of the traditional state-space model. For example, the inaccuracy of the DC current when the sudden change of current in the snubber circuit. Therefore a state-space analytical algorithm considering the thyristor snubber circuit is proposed. In this paper, the snubber current is added as the state variable to the state equation of the converter. And the coefficient matrix is used to represent the initial value of the state variable under different working conditions. Besides, the implicit trapezoid method is used for calculation, which effectively improves the calculation accuracy of the differential equation of the primary equipment. According to the data exchange between the control system and primary equipment, a complete HVDC analytical model consists of the converter, DC line, and control system is established using the state-space theory and solved by the backward Euler method. Furthermore, the simulation results in PSCAD/EMTDC proved the accuracy and validity of the proposed model.","PeriodicalId":110429,"journal":{"name":"2021 IEEE 4th International Electrical and Energy Conference (CIEEC)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114436394","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 : 2021-05-28DOI: 10.1109/CIEEC50170.2021.9510666
Xiao Zhou, Shaorui Yang, Siyang Sun
Deep learning plays an important role in short-term load forecasting. By combining deep learning model with expert knowledge, the accuracy and interpretation of load forecasting model can be further improved. Under the guidance of load forecasting theory, the effect of holidays on daily load was taken into account. This paper proposes a new convolutional LSTM (ConvLSTM) deep learning model with taking advantage of expert knowledge. Simulation results show that the proposed ConvLSTM network captures spatiotemporal correlations better and consistently outperforms LSTM for load forecasting, especially in holidays load forecasting.
{"title":"A Deep Learning model for day-ahead load forecasting taking advantage of expert knowledge","authors":"Xiao Zhou, Shaorui Yang, Siyang Sun","doi":"10.1109/CIEEC50170.2021.9510666","DOIUrl":"https://doi.org/10.1109/CIEEC50170.2021.9510666","url":null,"abstract":"Deep learning plays an important role in short-term load forecasting. By combining deep learning model with expert knowledge, the accuracy and interpretation of load forecasting model can be further improved. Under the guidance of load forecasting theory, the effect of holidays on daily load was taken into account. This paper proposes a new convolutional LSTM (ConvLSTM) deep learning model with taking advantage of expert knowledge. Simulation results show that the proposed ConvLSTM network captures spatiotemporal correlations better and consistently outperforms LSTM for load forecasting, especially in holidays load forecasting.","PeriodicalId":110429,"journal":{"name":"2021 IEEE 4th International Electrical and Energy Conference (CIEEC)","volume":"100 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114598483","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 : 2021-05-28DOI: 10.1109/CIEEC50170.2021.9510600
Yong Zhou, Gao Yang
A high-speed (HS) synchronous generator with the hidden pole was explored in this study. To obtain the mechanical properties on the rotor tooth of the HS generator under the dual action of centrifugal force and electromagnetic (EM) force, the transient response of the rotor was analyzed based on a process that could be summarized as follows. First, the mathematical models of the energy method, the LIVENS and Maxwell stress tensor methods were compared and a simple finite element model was analyzed. The results show that the LIVENS stress tensor method has more general applicability and is more suitable for solving the local EM force of ferromagnetic materials. Second, the EM force of the rotor teeth of the generator was calculated by the LIVENS stress tensor method. The results show that the EM torque of the generator is mainly distributed in the rotor tooth. Third, the transient response of the rotor under short-circuit was calculated by the FEA, the results show that the short-circuit EM force has a small effect on the structural stress of the rotor and can be almost ignored, which meet the design requirements of the HS generator.
{"title":"Transient Response Analysis of Short-Circuit Electromagnetic Force on the Rotor Teeth of a High-Speed Generator","authors":"Yong Zhou, Gao Yang","doi":"10.1109/CIEEC50170.2021.9510600","DOIUrl":"https://doi.org/10.1109/CIEEC50170.2021.9510600","url":null,"abstract":"A high-speed (HS) synchronous generator with the hidden pole was explored in this study. To obtain the mechanical properties on the rotor tooth of the HS generator under the dual action of centrifugal force and electromagnetic (EM) force, the transient response of the rotor was analyzed based on a process that could be summarized as follows. First, the mathematical models of the energy method, the LIVENS and Maxwell stress tensor methods were compared and a simple finite element model was analyzed. The results show that the LIVENS stress tensor method has more general applicability and is more suitable for solving the local EM force of ferromagnetic materials. Second, the EM force of the rotor teeth of the generator was calculated by the LIVENS stress tensor method. The results show that the EM torque of the generator is mainly distributed in the rotor tooth. Third, the transient response of the rotor under short-circuit was calculated by the FEA, the results show that the short-circuit EM force has a small effect on the structural stress of the rotor and can be almost ignored, which meet the design requirements of the HS generator.","PeriodicalId":110429,"journal":{"name":"2021 IEEE 4th International Electrical and Energy Conference (CIEEC)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122158032","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 : 2021-05-28DOI: 10.1109/CIEEC50170.2021.9510203
Ruanming Huang, Mengyao Zhang, Ming Zhang, Xiaohui Wang, Haiqun Wang, MmgZe Zhang, Aili Pang, Tianli Song, Y. Qi
Based on the Batts model and key characteristics of typhoon, the influence of typhoon on the wind speed is evaluated. Besides, the influence of typhoon on failure rate of wind turbines based on wind speed is considered to establish the reliability model of offshore wind farm. In addition, the reliability models of the collection system and VSC-HVDC system are established by state space method. The reliability indexes are calculated by the system state transition sampling approach. This reliability evaluation method increases the accuracy of reliability evaluation. At the same time, it enhances the practicability of the reliability model and can better provide guidance and references for the construction of offshore wind farm. Finally, the IEEE RTS-79 is studied to access the reliability. From the results, it can be summarized that the reliability indexes of grid are directly influenced by typhoon.
{"title":"Reliability Assessment of Grid Connected Offshore Wind Farm Considering the Influence of Typhoon","authors":"Ruanming Huang, Mengyao Zhang, Ming Zhang, Xiaohui Wang, Haiqun Wang, MmgZe Zhang, Aili Pang, Tianli Song, Y. Qi","doi":"10.1109/CIEEC50170.2021.9510203","DOIUrl":"https://doi.org/10.1109/CIEEC50170.2021.9510203","url":null,"abstract":"Based on the Batts model and key characteristics of typhoon, the influence of typhoon on the wind speed is evaluated. Besides, the influence of typhoon on failure rate of wind turbines based on wind speed is considered to establish the reliability model of offshore wind farm. In addition, the reliability models of the collection system and VSC-HVDC system are established by state space method. The reliability indexes are calculated by the system state transition sampling approach. This reliability evaluation method increases the accuracy of reliability evaluation. At the same time, it enhances the practicability of the reliability model and can better provide guidance and references for the construction of offshore wind farm. Finally, the IEEE RTS-79 is studied to access the reliability. From the results, it can be summarized that the reliability indexes of grid are directly influenced by typhoon.","PeriodicalId":110429,"journal":{"name":"2021 IEEE 4th International Electrical and Energy Conference (CIEEC)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122163012","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 : 2021-05-28DOI: 10.1109/CIEEC50170.2021.9510198
Wei Huang, Lifei Zhang, Xiaogang Wu, Chengxiang Li, Jie Zhang, Chen-Han Wu, Run Huang, Mingkang Wu
The frequency limit controller, or FLC, is an important measure for grid frequency stability control, and has been widely used in DC projects. DXB UHVDC project is faced with the problems of increasing frequency instability of the Yunnan power grid, as it runs asynchronously from the main grid, and the shortage of the opening unit in the initial stage of production. The configuration of FLC is very important. It analyzes two kinds of FLC control logic used in current DC project of China Southern Power Grid and compares the results of two kinds of control logic response through simulation test. The FLC configuration and parameter selection of DXB UHVDC are explained, and the response characteristics of FLC under the typical fault under the isolated islanding system are verified through simulation. And verify its function in DXB R TDS simulation platform as well as field test.
{"title":"Research and Engineering Application of DC Frequency Limit Control in DXB DC Project","authors":"Wei Huang, Lifei Zhang, Xiaogang Wu, Chengxiang Li, Jie Zhang, Chen-Han Wu, Run Huang, Mingkang Wu","doi":"10.1109/CIEEC50170.2021.9510198","DOIUrl":"https://doi.org/10.1109/CIEEC50170.2021.9510198","url":null,"abstract":"The frequency limit controller, or FLC, is an important measure for grid frequency stability control, and has been widely used in DC projects. DXB UHVDC project is faced with the problems of increasing frequency instability of the Yunnan power grid, as it runs asynchronously from the main grid, and the shortage of the opening unit in the initial stage of production. The configuration of FLC is very important. It analyzes two kinds of FLC control logic used in current DC project of China Southern Power Grid and compares the results of two kinds of control logic response through simulation test. The FLC configuration and parameter selection of DXB UHVDC are explained, and the response characteristics of FLC under the typical fault under the isolated islanding system are verified through simulation. And verify its function in DXB R TDS simulation platform as well as field test.","PeriodicalId":110429,"journal":{"name":"2021 IEEE 4th International Electrical and Energy Conference (CIEEC)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122172671","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 : 2021-05-28DOI: 10.1109/cieec50170.2021.9510243
Chen Xiaodong, Zheng Kai, Li Mingwen, Z. Tao, Sun Huazhong
The comprehensive implementation of the rural electrification promotion project is a major strategic measure for the country to consolidate the agricultural foundation and help and guarantee the revitalization of the rural areas. State Grid Shandong Electric Power Company summarized the main practices and experiences of rural electrical upgrading projects, analyzed the increasingly diversified energy demand trends and characteristics of modernized rural areas, and combined with the world-leading energy Internet strategy with Chinese characteristics to build rural energy Internet. Through the promotion of "power supply + energy efficiency" services, new ideas and new technologies for rural electrification improvement projects were carried out, and a typical construction method was empirically studied using a village in Shouguang as an example.
{"title":"Research on the Practice of Rural Electrification Improvement Project Focusing on Rural Energy Internet","authors":"Chen Xiaodong, Zheng Kai, Li Mingwen, Z. Tao, Sun Huazhong","doi":"10.1109/cieec50170.2021.9510243","DOIUrl":"https://doi.org/10.1109/cieec50170.2021.9510243","url":null,"abstract":"The comprehensive implementation of the rural electrification promotion project is a major strategic measure for the country to consolidate the agricultural foundation and help and guarantee the revitalization of the rural areas. State Grid Shandong Electric Power Company summarized the main practices and experiences of rural electrical upgrading projects, analyzed the increasingly diversified energy demand trends and characteristics of modernized rural areas, and combined with the world-leading energy Internet strategy with Chinese characteristics to build rural energy Internet. Through the promotion of \"power supply + energy efficiency\" services, new ideas and new technologies for rural electrification improvement projects were carried out, and a typical construction method was empirically studied using a village in Shouguang as an example.","PeriodicalId":110429,"journal":{"name":"2021 IEEE 4th International Electrical and Energy Conference (CIEEC)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117048219","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 : 2021-05-28DOI: 10.1109/cieec50170.2021.9510854
Hongcheng Yang, Yu Chen, Yi Shang, Changqi Yu, Yong Kang
Power electronic converters are more and more widely used, and abnormal temperature of converter components is the most important factor of converter failure. In order to improve the reliability of the converter design, it is necessary to monitor the temperature of key components in the converter during the prototype test stage. The temperature measurement method of infrared thermal images has rich temperature information, wide coverage, and does not affect the original circuit design. It is widely used in circuit temperature measurement occasions. However, in the current automatic temperature measurement methods, it is necessary to manually establish a standard matching template for the infrared thermal image of the circuit to be tested, which indicates a large workload and poor versatility. This paper proposes a method for fully automatic temperature monitoring of converter components. This method is based on a deep learning target detection algorithm, which can automatically identify the type of converter components, obtain partial infrared thermal images of components through heterogeneous image registration, and achieve accurate component temperature monitoring. The advantages of this method are: 1) there is no need to manually establish a standard template for each converter, and the versatility is good; 2) it is fully automatically when the monitoring the temperature of converter components without manual intervention; 3) it is easy to implement and promote due to low cost of hardware system. Finally, the experimental results verify the feasibility and accuracy of this method.
{"title":"A Temperature Monitoring Method for Power Electronic Converter Based on Infrared Image and Object Detection Algorithm","authors":"Hongcheng Yang, Yu Chen, Yi Shang, Changqi Yu, Yong Kang","doi":"10.1109/cieec50170.2021.9510854","DOIUrl":"https://doi.org/10.1109/cieec50170.2021.9510854","url":null,"abstract":"Power electronic converters are more and more widely used, and abnormal temperature of converter components is the most important factor of converter failure. In order to improve the reliability of the converter design, it is necessary to monitor the temperature of key components in the converter during the prototype test stage. The temperature measurement method of infrared thermal images has rich temperature information, wide coverage, and does not affect the original circuit design. It is widely used in circuit temperature measurement occasions. However, in the current automatic temperature measurement methods, it is necessary to manually establish a standard matching template for the infrared thermal image of the circuit to be tested, which indicates a large workload and poor versatility. This paper proposes a method for fully automatic temperature monitoring of converter components. This method is based on a deep learning target detection algorithm, which can automatically identify the type of converter components, obtain partial infrared thermal images of components through heterogeneous image registration, and achieve accurate component temperature monitoring. The advantages of this method are: 1) there is no need to manually establish a standard template for each converter, and the versatility is good; 2) it is fully automatically when the monitoring the temperature of converter components without manual intervention; 3) it is easy to implement and promote due to low cost of hardware system. Finally, the experimental results verify the feasibility and accuracy of this method.","PeriodicalId":110429,"journal":{"name":"2021 IEEE 4th International Electrical and Energy Conference (CIEEC)","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129605266","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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