Pub Date : 2022-07-08DOI: 10.1109/ICMSP55950.2022.9859159
Jiawei Zhang, Qizhi Zhang, Lin Li
Aiming at the defects of local stagnation and slow convergence speed of Salp Swarm Algorithm in the optimization process, an improved Salp Swarm Algorithm (ISSA) incorporating Tent chaotic mapping and decay factor is proposed. To begin, the Tent chaotic mapping strategy is used to initialize the population, which allows the population to traverse the search space and improve the first stage of the algorithm's iteration speed; second, the decay factor is added to the leader position update, which expands the search range and improves the algorithm's search accuracy. The experimental results reveal that the improved algorithm's exploration ability and optimization accuracy have been greatly enhanced by a series of benchmark function simulations.
{"title":"An Improved Slap Swarm Algorithm Incorporating Tent Chaotic Mapping and Decay Factor","authors":"Jiawei Zhang, Qizhi Zhang, Lin Li","doi":"10.1109/ICMSP55950.2022.9859159","DOIUrl":"https://doi.org/10.1109/ICMSP55950.2022.9859159","url":null,"abstract":"Aiming at the defects of local stagnation and slow convergence speed of Salp Swarm Algorithm in the optimization process, an improved Salp Swarm Algorithm (ISSA) incorporating Tent chaotic mapping and decay factor is proposed. To begin, the Tent chaotic mapping strategy is used to initialize the population, which allows the population to traverse the search space and improve the first stage of the algorithm's iteration speed; second, the decay factor is added to the leader position update, which expands the search range and improves the algorithm's search accuracy. The experimental results reveal that the improved algorithm's exploration ability and optimization accuracy have been greatly enhanced by a series of benchmark function simulations.","PeriodicalId":114259,"journal":{"name":"2022 4th International Conference on Intelligent Control, Measurement and Signal Processing (ICMSP)","volume":"321 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113998588","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 : 2022-07-08DOI: 10.1109/ICMSP55950.2022.9859206
Zhijian Zhou, Weijie Sun, Yihang Wang, Wenduo Li
The seismic precursory data collecting system, which includes short-circuit noise, frequency band, and dynamic range, is an important link in the digitalization of seismic monitoring systems. The digital requirements of electromagnetic sensors for seismic precursor detection are met in this study by a high accuracy, low noise, and powerful embedding acquisition method. The low noise signal conditioning circuit is constructed based on the sensor's output voltage and bandwidth, and 1kHz sampling is achieved using a 24-bit high-precision ADS1256 analog-to-digital conversion chip, and the data is then communicated to the PC through the 485 bus. Finally, the acquisition system's noise level in the 0.5Hz~60Hz region is around −120dB, with a dynamic range of 133dB. The acquisition system is compared to the NI Company's 4431 acquisition system in order to validate its correctness. The findings reveal that the two systems work similarly, and the self-made acquisition system is significantly less expensive than the 4431 acquisition system.
{"title":"Design of Signal Acquisition System Based on Earthquake Precursor Electromagnetic Disturbance","authors":"Zhijian Zhou, Weijie Sun, Yihang Wang, Wenduo Li","doi":"10.1109/ICMSP55950.2022.9859206","DOIUrl":"https://doi.org/10.1109/ICMSP55950.2022.9859206","url":null,"abstract":"The seismic precursory data collecting system, which includes short-circuit noise, frequency band, and dynamic range, is an important link in the digitalization of seismic monitoring systems. The digital requirements of electromagnetic sensors for seismic precursor detection are met in this study by a high accuracy, low noise, and powerful embedding acquisition method. The low noise signal conditioning circuit is constructed based on the sensor's output voltage and bandwidth, and 1kHz sampling is achieved using a 24-bit high-precision ADS1256 analog-to-digital conversion chip, and the data is then communicated to the PC through the 485 bus. Finally, the acquisition system's noise level in the 0.5Hz~60Hz region is around −120dB, with a dynamic range of 133dB. The acquisition system is compared to the NI Company's 4431 acquisition system in order to validate its correctness. The findings reveal that the two systems work similarly, and the self-made acquisition system is significantly less expensive than the 4431 acquisition system.","PeriodicalId":114259,"journal":{"name":"2022 4th International Conference on Intelligent Control, Measurement and Signal Processing (ICMSP)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122864876","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 : 2022-07-08DOI: 10.1109/ICMSP55950.2022.9859213
Ruirong Dang, Yuehan Gao, W. Gao
Research on the propagation and attenuation characteristics of ultrasonic waves in gas-liquid two-phase flow. According to the related theory of ultrasound, using COMSOL multiphysics simulation software, through the geometric modeling, meshing and full The definition of local parameters is used to study the propagation and attenuation characteristics of ultrasonic signals in different media compared with gas. The propagation process of ultrasonic signals in two-phase flow at different times and the attenuation characteristics of ultrasonic signals in different gas phases are simulated. The results show that with the increase of the gas phase, the attenuation amplitude of the ultrasonic signal increases continuously.
{"title":"Propagation characteristics of ultrasonic signals in gas-liquid two-phase flow","authors":"Ruirong Dang, Yuehan Gao, W. Gao","doi":"10.1109/ICMSP55950.2022.9859213","DOIUrl":"https://doi.org/10.1109/ICMSP55950.2022.9859213","url":null,"abstract":"Research on the propagation and attenuation characteristics of ultrasonic waves in gas-liquid two-phase flow. According to the related theory of ultrasound, using COMSOL multiphysics simulation software, through the geometric modeling, meshing and full The definition of local parameters is used to study the propagation and attenuation characteristics of ultrasonic signals in different media compared with gas. The propagation process of ultrasonic signals in two-phase flow at different times and the attenuation characteristics of ultrasonic signals in different gas phases are simulated. The results show that with the increase of the gas phase, the attenuation amplitude of the ultrasonic signal increases continuously.","PeriodicalId":114259,"journal":{"name":"2022 4th International Conference on Intelligent Control, Measurement and Signal Processing (ICMSP)","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115899000","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 : 2022-07-08DOI: 10.1109/ICMSP55950.2022.9859189
Xiaowei Zhou, Linyu Xu, Yuqi Zeng, Xiushan Wu, Jian Sun, Ge Shi
With the increasing popularity of radio frequency communication, thin-film bulk acoustic resonator (FBAR) has attracted great attention for their superior performance. In this study, the working principle of thin-film bulk acoustic resonator (FBAR) is analyzed, and the analytical expression of FBAR impedance is derived based on electrical characteristics, thereby establishing the electromechanical equivalent model of FBAR. The fluence of the resonant area of the FBAR and the thickness of each film layer on the performance parameters of the FBAR is studied and analyzed with aid of the Advanced Design System (ADS) software. The simulation results show that with the increase of the thickness of each layer, the resonant frequency gradually decreases; with the increase of the resonant area, the resonant frequency is not affected, but the impedance value of the device decreases gradually.
{"title":"Simulation of parameter influence of piezoelectric thin-film bulk acoustic resonator","authors":"Xiaowei Zhou, Linyu Xu, Yuqi Zeng, Xiushan Wu, Jian Sun, Ge Shi","doi":"10.1109/ICMSP55950.2022.9859189","DOIUrl":"https://doi.org/10.1109/ICMSP55950.2022.9859189","url":null,"abstract":"With the increasing popularity of radio frequency communication, thin-film bulk acoustic resonator (FBAR) has attracted great attention for their superior performance. In this study, the working principle of thin-film bulk acoustic resonator (FBAR) is analyzed, and the analytical expression of FBAR impedance is derived based on electrical characteristics, thereby establishing the electromechanical equivalent model of FBAR. The fluence of the resonant area of the FBAR and the thickness of each film layer on the performance parameters of the FBAR is studied and analyzed with aid of the Advanced Design System (ADS) software. The simulation results show that with the increase of the thickness of each layer, the resonant frequency gradually decreases; with the increase of the resonant area, the resonant frequency is not affected, but the impedance value of the device decreases gradually.","PeriodicalId":114259,"journal":{"name":"2022 4th International Conference on Intelligent Control, Measurement and Signal Processing (ICMSP)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115366433","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}
Based on the 3D finite element program of oil-based mud electrical imaging logging, this paper studies the dual-frequency processing method of oil-based mud electrical imaging logging, including the working principle of the dual-frequency correction method, the measurement response signal and variation law of the numerical simulation model, the equivalent circuit model of oil-based mud electrical imaging logging, the rapid calculation method of three parameters, formation resistivity, formation permittivity and mud-cake thickness, and the influence laws of each parameter is summarized. The results show that the dual-frequency correction method eliminates the influence of high-resistivity mud and mud-cake on the formation resistivity measurement, thereby expanding the measurement range of formation resistivity, and also obtains the dielectric constant information of the formation, which enriches the application range of this method. At the same time, the thickness information of mud cake can be obtained in combination with oil-based mud parameters, which provides technical support for understanding mud intrusion.
{"title":"Numerical Simulation Research on Dual-frequency Processing of Oil-based Mud Electrical Imaging Logging","authors":"Jianshen Gao, Dan Li, Chunli Lu, Liming Jiang, Kairan Zhu, Fei Xue","doi":"10.1109/ICMSP55950.2022.9859101","DOIUrl":"https://doi.org/10.1109/ICMSP55950.2022.9859101","url":null,"abstract":"Based on the 3D finite element program of oil-based mud electrical imaging logging, this paper studies the dual-frequency processing method of oil-based mud electrical imaging logging, including the working principle of the dual-frequency correction method, the measurement response signal and variation law of the numerical simulation model, the equivalent circuit model of oil-based mud electrical imaging logging, the rapid calculation method of three parameters, formation resistivity, formation permittivity and mud-cake thickness, and the influence laws of each parameter is summarized. The results show that the dual-frequency correction method eliminates the influence of high-resistivity mud and mud-cake on the formation resistivity measurement, thereby expanding the measurement range of formation resistivity, and also obtains the dielectric constant information of the formation, which enriches the application range of this method. At the same time, the thickness information of mud cake can be obtained in combination with oil-based mud parameters, which provides technical support for understanding mud intrusion.","PeriodicalId":114259,"journal":{"name":"2022 4th International Conference on Intelligent Control, Measurement and Signal Processing (ICMSP)","volume":"85 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114290372","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 : 2022-07-08DOI: 10.1109/ICMSP55950.2022.9859201
Xiaoyu Zhang, Jiamin Cui, Jilai Liu, Zhanbo Chen, Feng Wen, S. Yan
Optical sensors have many advantages such as anti-electromagnetic interference, fast response speed and low power consumption. However, the optical sensor cannot be further integrated due to the existence of diffraction limit. SPPs can overcome the diffraction limit and manipulate the optical signal in the subwavelength range, realizing the miniaturization of optical devices at the nanometer level. In this work, we presented an innovative sensor structure, which consists of a Window -Shaped Ring Resonator (WSRR) and a metal-insulator-metal (MIM) waveguide. The finite element method (FEM) was used to simulate the sensor characteristics. We analyzed the cause of Fano resonance, and optimized the performances of sensor by altering the parameters of the structure. The best sensitivity of the proposed structure is 1480 nm/RIU and the figure of merit (FOM) is 98.7. The presented refractive index sensor has promising applications in material sensing detection.
{"title":"A window-shaped resonator nanostructure based on an MIM waveguide for refractive index sensing","authors":"Xiaoyu Zhang, Jiamin Cui, Jilai Liu, Zhanbo Chen, Feng Wen, S. Yan","doi":"10.1109/ICMSP55950.2022.9859201","DOIUrl":"https://doi.org/10.1109/ICMSP55950.2022.9859201","url":null,"abstract":"Optical sensors have many advantages such as anti-electromagnetic interference, fast response speed and low power consumption. However, the optical sensor cannot be further integrated due to the existence of diffraction limit. SPPs can overcome the diffraction limit and manipulate the optical signal in the subwavelength range, realizing the miniaturization of optical devices at the nanometer level. In this work, we presented an innovative sensor structure, which consists of a Window -Shaped Ring Resonator (WSRR) and a metal-insulator-metal (MIM) waveguide. The finite element method (FEM) was used to simulate the sensor characteristics. We analyzed the cause of Fano resonance, and optimized the performances of sensor by altering the parameters of the structure. The best sensitivity of the proposed structure is 1480 nm/RIU and the figure of merit (FOM) is 98.7. The presented refractive index sensor has promising applications in material sensing detection.","PeriodicalId":114259,"journal":{"name":"2022 4th International Conference on Intelligent Control, Measurement and Signal Processing (ICMSP)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114463975","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 : 2022-07-08DOI: 10.1109/ICMSP55950.2022.9859151
Renwang Ge, Di Zhang, Renyuan Tong, Qing Li
From time to time, it is necessary to measure the level of certain sealed containers in life. These containers are usually filled with liquids that are flammable and explosive, toxic and hazardous, or highly volatile. In this paper, a non-contact online liquid level detection device is designed using the ultrasonic principle. The method is based on the unequal transmission and reflection coefficients of the liquid and gaseous media inside the measured vessel to achieve the measurement of the vessel level height. The device adjusts the amplification of the ultrasonic transmitting probe and receiving probe through the combination of micro controller software and hardware to achieve the measurement of the liquid level of containers with different materials and thicknesses. Separate level and height measurements of the vessel are achieved by two ultrasonic circuits. The device is equipped with a three-axis attitude sensor to observe the tilt condition of the container while measuring the container height. The final measured data can be displayed on the serial assistant, cell phone APP, and Ali cloud platform in multiple directions. The experiment proved that the device can measure containers with a thickness of less than 2 mm and that the height error is within 2 mm. The device has stable measurement data and is suitable for level measurement of small sealed vessels.
{"title":"Non-contact sealed vessel liquid level measurement and device design based on ultrasonic principle","authors":"Renwang Ge, Di Zhang, Renyuan Tong, Qing Li","doi":"10.1109/ICMSP55950.2022.9859151","DOIUrl":"https://doi.org/10.1109/ICMSP55950.2022.9859151","url":null,"abstract":"From time to time, it is necessary to measure the level of certain sealed containers in life. These containers are usually filled with liquids that are flammable and explosive, toxic and hazardous, or highly volatile. In this paper, a non-contact online liquid level detection device is designed using the ultrasonic principle. The method is based on the unequal transmission and reflection coefficients of the liquid and gaseous media inside the measured vessel to achieve the measurement of the vessel level height. The device adjusts the amplification of the ultrasonic transmitting probe and receiving probe through the combination of micro controller software and hardware to achieve the measurement of the liquid level of containers with different materials and thicknesses. Separate level and height measurements of the vessel are achieved by two ultrasonic circuits. The device is equipped with a three-axis attitude sensor to observe the tilt condition of the container while measuring the container height. The final measured data can be displayed on the serial assistant, cell phone APP, and Ali cloud platform in multiple directions. The experiment proved that the device can measure containers with a thickness of less than 2 mm and that the height error is within 2 mm. The device has stable measurement data and is suitable for level measurement of small sealed vessels.","PeriodicalId":114259,"journal":{"name":"2022 4th International Conference on Intelligent Control, Measurement and Signal Processing (ICMSP)","volume":"86 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114778813","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In this paper, a design method of a thermal mass flowmeter based on constant power is proposed. The purpose is to measure the flow of a small amount of fluid. The principle is to arrange two temperature sensors in the pipeline to heat the speed-measuring temperature sensor. The principle calculates the flow. The polynomial least squares method is used to establish the mathematical model between the fluid flow and the sensor output voltage, and the output signal is processed by the single chip microcomputer. The experimental results show that the relative error of the designed thermal mass flowmeter is within 1.5%. The flowmeter has the advantages of large measurement range, high measurement accuracy and good repeatability.
{"title":"Design of microcalorimetric mass flowmeter based on constant power","authors":"Pingyi Zhang, Ruirong Dang, Mimi Zhang, Fanfan Zhao","doi":"10.1109/ICMSP55950.2022.9859132","DOIUrl":"https://doi.org/10.1109/ICMSP55950.2022.9859132","url":null,"abstract":"In this paper, a design method of a thermal mass flowmeter based on constant power is proposed. The purpose is to measure the flow of a small amount of fluid. The principle is to arrange two temperature sensors in the pipeline to heat the speed-measuring temperature sensor. The principle calculates the flow. The polynomial least squares method is used to establish the mathematical model between the fluid flow and the sensor output voltage, and the output signal is processed by the single chip microcomputer. The experimental results show that the relative error of the designed thermal mass flowmeter is within 1.5%. The flowmeter has the advantages of large measurement range, high measurement accuracy and good repeatability.","PeriodicalId":114259,"journal":{"name":"2022 4th International Conference on Intelligent Control, Measurement and Signal Processing (ICMSP)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114700315","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 : 2022-07-08DOI: 10.1109/ICMSP55950.2022.9859183
Li-pin Li, Bingjian Zhang, Jia Liu, Xiao Wang, Yu Sun
This paper studies and designs a double-ring capacitive sensor gas content detection system, in order to solve the problems of low detection accuracy of traditional gas-liquid two-phase flow gas content and the influence of factors such as inclination angle and flow pattern in actual measurement. The sensor is designed and optimized based on COMSOL simulation software, the influence of electrode width and spacing on the sensitivity uniformity index is analyzed, and the optimized structural parameters of the sensor are obtained. Simulation and experimental results show that the double-loop capacitive sensor measurement system has good linearity and a small average relative error (0.4%). The inclination angle of the pipe and the flow pattern will have a certain influence on the measurement of the sensor.
{"title":"Sensor Optimization and Influencing Factor Analysis of Gas Content by Capacitive Method","authors":"Li-pin Li, Bingjian Zhang, Jia Liu, Xiao Wang, Yu Sun","doi":"10.1109/ICMSP55950.2022.9859183","DOIUrl":"https://doi.org/10.1109/ICMSP55950.2022.9859183","url":null,"abstract":"This paper studies and designs a double-ring capacitive sensor gas content detection system, in order to solve the problems of low detection accuracy of traditional gas-liquid two-phase flow gas content and the influence of factors such as inclination angle and flow pattern in actual measurement. The sensor is designed and optimized based on COMSOL simulation software, the influence of electrode width and spacing on the sensitivity uniformity index is analyzed, and the optimized structural parameters of the sensor are obtained. Simulation and experimental results show that the double-loop capacitive sensor measurement system has good linearity and a small average relative error (0.4%). The inclination angle of the pipe and the flow pattern will have a certain influence on the measurement of the sensor.","PeriodicalId":114259,"journal":{"name":"2022 4th International Conference on Intelligent Control, Measurement and Signal Processing (ICMSP)","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127363455","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 : 2022-07-08DOI: 10.1109/ICMSP55950.2022.9859228
Jianwei Gu, Xixing Hu, Weiyan Zheng, Mengxi Cao, Guoping Zou
DC bias phenomenon is a serious threat to the electrical transformer in the power grid, which may cause abnormal vibration or overheat in some area of the transformer. The density of substations in Baihetan-Zhejiang UHVDC transmission project is high and some newly-built substations are close to Baihetan DC grounding electrode, there may have a DC-bias risk for electrical transformer. Therefore, the topology model of Baihetan-Zhejiang UHVDC transmission project is built and the distribution of DC bias current is calculated here. The suppression of the DC bias current measures is proposed based on the analysis of the distribution of DC bias current in Baihetan-Zhejiang UHVDC transmission project. To demonstrate the DC bias risk intuitively, a risk distribution map is defined, which can provide effective information for the construction of future substations in Baihetan district.
{"title":"Analysis and Suppression of DC bias in Baihetan-Zhejiang UHVDC Transmission Project","authors":"Jianwei Gu, Xixing Hu, Weiyan Zheng, Mengxi Cao, Guoping Zou","doi":"10.1109/ICMSP55950.2022.9859228","DOIUrl":"https://doi.org/10.1109/ICMSP55950.2022.9859228","url":null,"abstract":"DC bias phenomenon is a serious threat to the electrical transformer in the power grid, which may cause abnormal vibration or overheat in some area of the transformer. The density of substations in Baihetan-Zhejiang UHVDC transmission project is high and some newly-built substations are close to Baihetan DC grounding electrode, there may have a DC-bias risk for electrical transformer. Therefore, the topology model of Baihetan-Zhejiang UHVDC transmission project is built and the distribution of DC bias current is calculated here. The suppression of the DC bias current measures is proposed based on the analysis of the distribution of DC bias current in Baihetan-Zhejiang UHVDC transmission project. To demonstrate the DC bias risk intuitively, a risk distribution map is defined, which can provide effective information for the construction of future substations in Baihetan district.","PeriodicalId":114259,"journal":{"name":"2022 4th International Conference on Intelligent Control, Measurement and Signal Processing (ICMSP)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128104149","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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