Mengyue Hu, Yangchun Cheng, Jinyuan Li, Peng Wang, H. Meng
The Direct Current Circuit Breaker (DCCB) is vital to isolate the fault lines and interrupt current in the Voltage Source Converter High Voltage Direct Current (VSC-HVDC). The Press Pack IGBT in the hybrid DCCB is a key to conduct current, transfer and break fault current. Considering the working condition of the hybrid HVDC circuit breaker, current was chosen as the stress to perform simulated working condition test. This paper first analyzes the working process of the hybrid DC circuit breaker, and proposes a test method for the simulated working condition of Press Pack IGBT to research the reliability under overheating and over-current failure. Then the paper explains the generation of the test equivalent current waveform. Based on the assumption that the device lifetime distribution conforms to the exponential distribution, the relationship between the current level and the average life was proposed so that the reliability of the device can be evaluated in the presence of different current stress conditions.
{"title":"Research on Equivalent Reliability for Press Pack IGBT in Hybrid HVDC Circuit Breaker","authors":"Mengyue Hu, Yangchun Cheng, Jinyuan Li, Peng Wang, H. Meng","doi":"10.1145/3277453.3286091","DOIUrl":"https://doi.org/10.1145/3277453.3286091","url":null,"abstract":"The Direct Current Circuit Breaker (DCCB) is vital to isolate the fault lines and interrupt current in the Voltage Source Converter High Voltage Direct Current (VSC-HVDC). The Press Pack IGBT in the hybrid DCCB is a key to conduct current, transfer and break fault current. Considering the working condition of the hybrid HVDC circuit breaker, current was chosen as the stress to perform simulated working condition test. This paper first analyzes the working process of the hybrid DC circuit breaker, and proposes a test method for the simulated working condition of Press Pack IGBT to research the reliability under overheating and over-current failure. Then the paper explains the generation of the test equivalent current waveform. Based on the assumption that the device lifetime distribution conforms to the exponential distribution, the relationship between the current level and the average life was proposed so that the reliability of the device can be evaluated in the presence of different current stress conditions.","PeriodicalId":186835,"journal":{"name":"Proceedings of the 2018 International Conference on Electronics and Electrical Engineering Technology","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116949381","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}
Shuxia Yan, Xu Dong, Xiaoyi Jin, Weiguang Shi, W. Xu
This paper reviews the nonlinear microwave device modeling technology based on Neuro-Space Mapping (Neuro-SM). We mainly introduce two kinds of Neuro-SM models: the Neuro-SM model with input mapping network and the Neuro-SM model with output mapping network. Compared with the traditional equivalent circuit model, the Neuro-SM models are more accurate. Measurement data of the RF power laterally diffuse metal-oxide semiconductor (LDMOS) transistor and InP HEMT transistor are used as the application examples to verify the reviewed two Neuro-SM models can accurately reflect the characteristics of transistors with simple operation process and enhance the accuracy of the existing model.
综述了基于神经空间映射(neural - space Mapping，简称neurosm)的微波器件非线性建模技术。本文主要介绍了两种神经网络模型:带输入映射网络的神经网络模型和带输出映射网络的神经网络模型。与传统等效电路模型相比，neural - sm模型具有更高的精度。以射频功率横向扩散金属氧化物半导体(LDMOS)晶体管和InP HEMT晶体管的测量数据为应用实例，验证了所综述的两种neural - sm模型能够准确地反映晶体管的特性，操作过程简单，提高了现有模型的精度。
{"title":"Review of Neuro-Space Mapping Method for Transistor Modeling","authors":"Shuxia Yan, Xu Dong, Xiaoyi Jin, Weiguang Shi, W. Xu","doi":"10.1145/3277453.3277473","DOIUrl":"https://doi.org/10.1145/3277453.3277473","url":null,"abstract":"This paper reviews the nonlinear microwave device modeling technology based on Neuro-Space Mapping (Neuro-SM). We mainly introduce two kinds of Neuro-SM models: the Neuro-SM model with input mapping network and the Neuro-SM model with output mapping network. Compared with the traditional equivalent circuit model, the Neuro-SM models are more accurate. Measurement data of the RF power laterally diffuse metal-oxide semiconductor (LDMOS) transistor and InP HEMT transistor are used as the application examples to verify the reviewed two Neuro-SM models can accurately reflect the characteristics of transistors with simple operation process and enhance the accuracy of the existing model.","PeriodicalId":186835,"journal":{"name":"Proceedings of the 2018 International Conference on Electronics and Electrical Engineering Technology","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121902739","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}
Signal needs to co-exist with interference signal simultaneously when measuring the Anti-intermodulation interference capability of AIS receiver. The common scheme uses an AWG (arbitrary waveform generator) and several signal sources to produce AIS signal and interference signal. This paper proposes a scheme that one AWG generates AIS signal and interference signal concurrently, and the theoretical simulation of the scheme shows the scheme is reasonable and feasible. Compared with the common scheme, the scheme greatly reduces the cost of the instrument, overcomes third-order interactive modulation distortion between the signal sources in theory and enhances the signal quality.
{"title":"Research on AIS Signal and Interference Signal Generated by AWG Simultaneously","authors":"Mingju Gong, Qilin Wang, Chen Dong, Haojie Zhou, Sheng Wang, Yi Zhao","doi":"10.1145/3277453.3277485","DOIUrl":"https://doi.org/10.1145/3277453.3277485","url":null,"abstract":"Signal needs to co-exist with interference signal simultaneously when measuring the Anti-intermodulation interference capability of AIS receiver. The common scheme uses an AWG (arbitrary waveform generator) and several signal sources to produce AIS signal and interference signal. This paper proposes a scheme that one AWG generates AIS signal and interference signal concurrently, and the theoretical simulation of the scheme shows the scheme is reasonable and feasible. Compared with the common scheme, the scheme greatly reduces the cost of the instrument, overcomes third-order interactive modulation distortion between the signal sources in theory and enhances the signal quality.","PeriodicalId":186835,"journal":{"name":"Proceedings of the 2018 International Conference on Electronics and Electrical Engineering Technology","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126022531","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}
Pulse Coupled Neural Network (PCNN) is biologically inspired neural networks, which has a good application in image processing, such as segmentation, enhancement, recognition, edge detection and so on. This paper presents a general VHDL modeling of PCNN, that is targeted for FPGA implementation, and can also be used with advantage for ASIC. First, the basic PCNN theory model is analyzed; and then the detail designed of each sub-module of the hardware is given; at last, the VHDL model is proved by comparing the time series output from FPGA simulation and that from theoretical calculation of the same image. The FPGA hardware implementation may be considered a platform for further, extended implementations and easily expanded into various applications.
{"title":"FPGA Implementation of Pulse Coupled Neural Network on for Time Series of an Image","authors":"Xinzhe Zang, Zhenbin Gao, Mengyuan Li, Xia Wang","doi":"10.1145/3277453.3277483","DOIUrl":"https://doi.org/10.1145/3277453.3277483","url":null,"abstract":"Pulse Coupled Neural Network (PCNN) is biologically inspired neural networks, which has a good application in image processing, such as segmentation, enhancement, recognition, edge detection and so on. This paper presents a general VHDL modeling of PCNN, that is targeted for FPGA implementation, and can also be used with advantage for ASIC. First, the basic PCNN theory model is analyzed; and then the detail designed of each sub-module of the hardware is given; at last, the VHDL model is proved by comparing the time series output from FPGA simulation and that from theoretical calculation of the same image. The FPGA hardware implementation may be considered a platform for further, extended implementations and easily expanded into various applications.","PeriodicalId":186835,"journal":{"name":"Proceedings of the 2018 International Conference on Electronics and Electrical Engineering Technology","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123461702","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, we mainly study the amount of information that the hybrid wireless networks can transmit under fast fading channels. We first formulate such a hybrid wireless network models that deployed a wired network of infrastructure into Ad-hoc networks. MIMO technology is assumed to be equipped on the base station to further increase the whole network throughput. In order to overcome the inter-cell inference, we adopted the frequency reuse scheme. Through analysis, we give the closed expressions for the ergodic throughput capacity under high SINR and low SINR scenarios respectively. Finally, it proves the effectiveness of MIMO against fading through Monte-Carlo simulation.
{"title":"On the Downlink Ergodic Throughput Capacity of Hybrid Wireless Networks with MIMO","authors":"Baoju Zhang, Yuyin Wang, Cuiping Zhang","doi":"10.1145/3277453.3286088","DOIUrl":"https://doi.org/10.1145/3277453.3286088","url":null,"abstract":"In this paper, we mainly study the amount of information that the hybrid wireless networks can transmit under fast fading channels. We first formulate such a hybrid wireless network models that deployed a wired network of infrastructure into Ad-hoc networks. MIMO technology is assumed to be equipped on the base station to further increase the whole network throughput. In order to overcome the inter-cell inference, we adopted the frequency reuse scheme. Through analysis, we give the closed expressions for the ergodic throughput capacity under high SINR and low SINR scenarios respectively. Finally, it proves the effectiveness of MIMO against fading through Monte-Carlo simulation.","PeriodicalId":186835,"journal":{"name":"Proceedings of the 2018 International Conference on Electronics and Electrical Engineering Technology","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125743230","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}
H. Bai, Yamei Yang, Yan Liu, Junfa Zhao, Cheng Zhang
In the field of scientific research, there are high requirements for image quality. In recent years, the emergence of scientific CMOS (sCMOS) cameras has provided a favorable tool for this demand, but when applied in special circumstances, there is inevitably appearing fixed pattern noises (FPN), damaging image details. This paper presents a new method for detecting FPN and correcting the detected results adaptively in images. The detection algorithm is divided into dark-scene detection and illuminated- scene detection, dark-scene detection makes use of the simulation of FPN detection, the detection accuracy is up to 99.13%. For the illuminated-scene detection requirements, an adaptive threshold algorithm is proposed. Based on the FPN detection results, performing a 3x3 window median grayscale substitution algorithm to correct them one by one. The experimental results show that the algorithm can detect the position coordinate information of FPN accurately, remove the influence of FPN effectively, and can be widely applied to sCMOS cameras with high requirements for image quality.
{"title":"Adaptive Detection and Correction of Fixed Pattern Noise in sCMOS Cameras","authors":"H. Bai, Yamei Yang, Yan Liu, Junfa Zhao, Cheng Zhang","doi":"10.1145/3277453.3277475","DOIUrl":"https://doi.org/10.1145/3277453.3277475","url":null,"abstract":"In the field of scientific research, there are high requirements for image quality. In recent years, the emergence of scientific CMOS (sCMOS) cameras has provided a favorable tool for this demand, but when applied in special circumstances, there is inevitably appearing fixed pattern noises (FPN), damaging image details. This paper presents a new method for detecting FPN and correcting the detected results adaptively in images. The detection algorithm is divided into dark-scene detection and illuminated- scene detection, dark-scene detection makes use of the simulation of FPN detection, the detection accuracy is up to 99.13%. For the illuminated-scene detection requirements, an adaptive threshold algorithm is proposed. Based on the FPN detection results, performing a 3x3 window median grayscale substitution algorithm to correct them one by one. The experimental results show that the algorithm can detect the position coordinate information of FPN accurately, remove the influence of FPN effectively, and can be widely applied to sCMOS cameras with high requirements for image quality.","PeriodicalId":186835,"journal":{"name":"Proceedings of the 2018 International Conference on Electronics and Electrical Engineering Technology","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133691928","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 modern power systems, the methods of voltage sag monitors optimal placement and fault assessment are based on fixed threshold detection system, which affect the method's accuracy. To change this limitation, an active information extraction on-line monitoring system for voltage sag is developed. The monitor is based on STM32 microcontroller chip, using GPRS to communicate with the host computer. A new monitor reach area method considering fault location is proposed. LabVIEW is used to build servers. The host computer uses a new fault location method to analyze the uploaded information. The simulation results show that the new design of the system can accurately locate the fault location and evaluate the voltage sag state of the network.
{"title":"Fault Location and Design of On-Line Monitoring System for Voltage Sag","authors":"Chong Liu, Lijun Tian, Yanwen Hou, Yunxing Gao","doi":"10.1145/3277453.3277457","DOIUrl":"https://doi.org/10.1145/3277453.3277457","url":null,"abstract":"In modern power systems, the methods of voltage sag monitors optimal placement and fault assessment are based on fixed threshold detection system, which affect the method's accuracy. To change this limitation, an active information extraction on-line monitoring system for voltage sag is developed. The monitor is based on STM32 microcontroller chip, using GPRS to communicate with the host computer. A new monitor reach area method considering fault location is proposed. LabVIEW is used to build servers. The host computer uses a new fault location method to analyze the uploaded information. The simulation results show that the new design of the system can accurately locate the fault location and evaluate the voltage sag state of the network.","PeriodicalId":186835,"journal":{"name":"Proceedings of the 2018 International Conference on Electronics and Electrical Engineering Technology","volume":"127 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134105975","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}
This article analysed the international technology roadmap for semiconductors. From discussed the background,content, organization and characteristics, this article suggestioned to improve science and technology strategy research. It is necessary to do strategic research on important academic subjects and industrial technologies by the roadmap methodology and update regularly. The organization framework, such as the management board, work groups and supporting office, guarantees the success of a roadmap research. International cooperation and collaborative innovation play very important roles to enhance the innovation quality of a roadmap.
{"title":"Research of Science and Technology Strategic Base on the International Technology Roadmap for Semiconductors","authors":"Xiaopei Zhang, Shaoshuai Li, Hejun Yu","doi":"10.1145/3277453.3277480","DOIUrl":"https://doi.org/10.1145/3277453.3277480","url":null,"abstract":"This article analysed the international technology roadmap for semiconductors. From discussed the background,content, organization and characteristics, this article suggestioned to improve science and technology strategy research. It is necessary to do strategic research on important academic subjects and industrial technologies by the roadmap methodology and update regularly. The organization framework, such as the management board, work groups and supporting office, guarantees the success of a roadmap research. International cooperation and collaborative innovation play very important roles to enhance the innovation quality of a roadmap.","PeriodicalId":186835,"journal":{"name":"Proceedings of the 2018 International Conference on Electronics and Electrical Engineering Technology","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129676794","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}
Yue Wu, Wen Wang, Fang Zhang, Zhitao Xiao, Jun Wu, Lei Geng
In order to measure the size of nanoparticles accurately and evaluate the quality of nanomaterials, a method using the improved watershed algorithm for particle separation is proposed based on the nanoparticle images captured by the transmission electron microscopy (TEM). Firstly, the image is enhanced by filtering after gray-stretched, and then the binary image is obtained by threshold. The distance transform is performed on the image, and the watershed algorithm is used to segment the image to obtain the individual particles. Finally, the particle boundary is fitted, and the particle size is obtained by combining the pixel calibration results. The experimental results show that the particle segmentation method based on the improved watershed can segment the adhesion nanoparticles effectively, and the particle size measured on the basis is accurate and reliable.
{"title":"Nanoparticle Size Measurement Method Based on Improved Watershed Segmentation","authors":"Yue Wu, Wen Wang, Fang Zhang, Zhitao Xiao, Jun Wu, Lei Geng","doi":"10.1145/3277453.3286087","DOIUrl":"https://doi.org/10.1145/3277453.3286087","url":null,"abstract":"In order to measure the size of nanoparticles accurately and evaluate the quality of nanomaterials, a method using the improved watershed algorithm for particle separation is proposed based on the nanoparticle images captured by the transmission electron microscopy (TEM). Firstly, the image is enhanced by filtering after gray-stretched, and then the binary image is obtained by threshold. The distance transform is performed on the image, and the watershed algorithm is used to segment the image to obtain the individual particles. Finally, the particle boundary is fitted, and the particle size is obtained by combining the pixel calibration results. The experimental results show that the particle segmentation method based on the improved watershed can segment the adhesion nanoparticles effectively, and the particle size measured on the basis is accurate and reliable.","PeriodicalId":186835,"journal":{"name":"Proceedings of the 2018 International Conference on Electronics and Electrical Engineering Technology","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129514819","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}
Device-to-Device (D2D) communication brings significant benefits to spectrum utilization, increasing throughput of the system and extending the coverage of cellular networks, it also causes interference to the cellular networks as a result of spectrum sharing. In this paper, energy efficiency is considered as the optimization objective since the devices are handheld equipment with limited battery life. Power control for D2D user transmitting terminal is presented to reduce system power consumption and match the appropriate resource packages. To optimize the energy efficiency over the resource allocation, we formulate the allocation problem as a multi-round combinatorial double auction (MCDA) algorithm. The simulation results demonstrate that the algorithm enhances the system energy efficiency and ensures the fairness of resource allocation.
{"title":"Efficient Resource Allocation for D2D Communication Underlaying Cellular Networks: A Multi-Round Combinatorial Double Auction","authors":"Jianbin Xue, Qingliu Ma, Hua Shao","doi":"10.1145/3277453.3277488","DOIUrl":"https://doi.org/10.1145/3277453.3277488","url":null,"abstract":"Device-to-Device (D2D) communication brings significant benefits to spectrum utilization, increasing throughput of the system and extending the coverage of cellular networks, it also causes interference to the cellular networks as a result of spectrum sharing. In this paper, energy efficiency is considered as the optimization objective since the devices are handheld equipment with limited battery life. Power control for D2D user transmitting terminal is presented to reduce system power consumption and match the appropriate resource packages. To optimize the energy efficiency over the resource allocation, we formulate the allocation problem as a multi-round combinatorial double auction (MCDA) algorithm. The simulation results demonstrate that the algorithm enhances the system energy efficiency and ensures the fairness of resource allocation.","PeriodicalId":186835,"journal":{"name":"Proceedings of the 2018 International Conference on Electronics and Electrical Engineering Technology","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125001962","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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