Mobile edge computing (MEC) provides cloud computing capabilities at the edge of the mobile network, emphasizing proximity to mobile users to reduce network operation and service delays, improving user experience. In this paper, we study the problem of low utilization spectrum resources for MEC in 5G heterogeneous networks. We first explore the problem of computing offloading in multi-channel environment. Then an optimization problem is proposed to maximum the overall throughput of the offloading system, where the power control and interference are taken into consideration. We transform the original optimization problem into a convex optimization problem, and use the Lagrangian dual algorithm to establish the KKT condition. By continuous iterative operation, the user's transmit power is optimally achieved. Simulation results show that our proposed scheme not only guarantees the communication quality, but also improves the system throughput and spectrum utilization.
{"title":"Resource Allocation for System Throughput Maximization Based on Mobile Edge Computing","authors":"Jianbin Xue, Hua Shao, Qingliu Ma","doi":"10.1145/3277453.3277491","DOIUrl":"https://doi.org/10.1145/3277453.3277491","url":null,"abstract":"Mobile edge computing (MEC) provides cloud computing capabilities at the edge of the mobile network, emphasizing proximity to mobile users to reduce network operation and service delays, improving user experience. In this paper, we study the problem of low utilization spectrum resources for MEC in 5G heterogeneous networks. We first explore the problem of computing offloading in multi-channel environment. Then an optimization problem is proposed to maximum the overall throughput of the offloading system, where the power control and interference are taken into consideration. We transform the original optimization problem into a convex optimization problem, and use the Lagrangian dual algorithm to establish the KKT condition. By continuous iterative operation, the user's transmit power is optimally achieved. Simulation results show that our proposed scheme not only guarantees the communication quality, but also improves the system throughput and spectrum utilization.","PeriodicalId":186835,"journal":{"name":"Proceedings of the 2018 International Conference on Electronics and Electrical Engineering Technology","volume":"23 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":"115048552","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}
Bin Zhang, Jian Han, Yanlin Ren, Huimin Wen, Ziye Song, Qirui Gan, Ran Wei, Xin Dang, Bin Zhou
Building Power analysis has drawn more and more attention in recent years. In this paper, we present a system for online power prediction for the public building. It is based on a 4-layers Deep Neural Network that use architectural metrics of the physical machines collected dynamically by our system to predict the physical machine power consumption. A real implementation of our system shows that the prediction accuracy could reach 76.50%.
{"title":"An Online Power System Dynamics Prediction Based on Deep Neural Network","authors":"Bin Zhang, Jian Han, Yanlin Ren, Huimin Wen, Ziye Song, Qirui Gan, Ran Wei, Xin Dang, Bin Zhou","doi":"10.1145/3277453.3277464","DOIUrl":"https://doi.org/10.1145/3277453.3277464","url":null,"abstract":"Building Power analysis has drawn more and more attention in recent years. In this paper, we present a system for online power prediction for the public building. It is based on a 4-layers Deep Neural Network that use architectural metrics of the physical machines collected dynamically by our system to predict the physical machine power consumption. A real implementation of our system shows that the prediction accuracy could reach 76.50%.","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":"130735956","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, Xiaoyi Jin, Yaoqian Zhang, Weiguang Shi, W. Xu
A novel Neuro-Space Mapping (Neuro-SM) modeling with capacitors and inductors is proposed. The proposed model processes the DC signal and the AC signal respectively: the AC component is mapped while the DC signal is not affected by the mapping relationship. This method can improve the AC characteristic without changing DC characteristic and match the device with a few optimization variables and simple mapping relationship. The example result confirms that the proposed Neuro-SM method can accurately reflect the characteristics of transistor with simple operation process and enhance the accuracy of the existing model?
{"title":"Improvement of Neuro-Space Mapping Structure","authors":"Shuxia Yan, Xiaoyi Jin, Yaoqian Zhang, Weiguang Shi, W. Xu","doi":"10.1145/3277453.3277472","DOIUrl":"https://doi.org/10.1145/3277453.3277472","url":null,"abstract":"A novel Neuro-Space Mapping (Neuro-SM) modeling with capacitors and inductors is proposed. The proposed model processes the DC signal and the AC signal respectively: the AC component is mapped while the DC signal is not affected by the mapping relationship. This method can improve the AC characteristic without changing DC characteristic and match the device with a few optimization variables and simple mapping relationship. The example result confirms that the proposed Neuro-SM method can accurately reflect the characteristics of transistor 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":"177 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":"133489550","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}
To dispense micro-liquid droplets more precisely and efficiently in microelectronic packaging field, a new needle-type micro-liquid jetting system driven by a piezostack actuator is developed in this paper, in which a diamond-shaped amplifying mechanism is adopted to amplify the displacement to a suitable range to strengthen the needle vibration and hitting during the jetting process. By analyzing the working principle and building the dynamic model of the dispenser, the paper constructs a mechanical part, a power amplifier and control module respectively. Then experiments about their working performance are undertaken and the results show that: a higher frequency produces a smaller droplet, whose volume has a linear relationship with the pressure applied to the liquid in the syringe. And the repeatability accuracy is 2.76% and 5.21% when the frequency is 20 Hz and 40 Hz respectively. This paper is used to guide design and control of these kinds of jetting dispensers.
{"title":"Design and Implementation of Micro-Liquid Jetting System Featuring Piezostack Actuator for Microelectronic Packaging","authors":"Shizhou Lu, Chenliang Ren, Xiaohui Shan, Wei Liu, Chenyu Zhu, Yuankai Ren","doi":"10.1145/3277453.3286090","DOIUrl":"https://doi.org/10.1145/3277453.3286090","url":null,"abstract":"To dispense micro-liquid droplets more precisely and efficiently in microelectronic packaging field, a new needle-type micro-liquid jetting system driven by a piezostack actuator is developed in this paper, in which a diamond-shaped amplifying mechanism is adopted to amplify the displacement to a suitable range to strengthen the needle vibration and hitting during the jetting process. By analyzing the working principle and building the dynamic model of the dispenser, the paper constructs a mechanical part, a power amplifier and control module respectively. Then experiments about their working performance are undertaken and the results show that: a higher frequency produces a smaller droplet, whose volume has a linear relationship with the pressure applied to the liquid in the syringe. And the repeatability accuracy is 2.76% and 5.21% when the frequency is 20 Hz and 40 Hz respectively. This paper is used to guide design and control of these kinds of jetting dispensers.","PeriodicalId":186835,"journal":{"name":"Proceedings of the 2018 International Conference on Electronics and Electrical Engineering Technology","volume":"72 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120871029","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}
Statistical shape models (SSMs) is a robust and efficient method in medical image segmentation. In this paper, a novel landmark corresponding method based on k-means clustering and demons registration is proposed to train a 3-D statistical shape model with higher quality. The k-means clustering method is performed on the original geometric surface to obtain a simplified surface as standard set of landmarks to find correspondent landmarks on each mapped spherical surface obtained from demon registration in the training set. Twenty cases of left lung and right lung regions in thoracic MDCT images are used in the experiment to build two SSMs. Performance evaluation results show that SSMs generated by the proposed method achieve better generalization ability and specificity while maintaining the same compactness and accuracy of segmentation as those reported by state-of-the-art methods.
{"title":"Statistical Shape Model Generation Using K-means Clustering","authors":"Jiaqi Wu, Guangxu Li, Huimin Lu, Hyoungseop Kim","doi":"10.1145/3277453.3277467","DOIUrl":"https://doi.org/10.1145/3277453.3277467","url":null,"abstract":"Statistical shape models (SSMs) is a robust and efficient method in medical image segmentation. In this paper, a novel landmark corresponding method based on k-means clustering and demons registration is proposed to train a 3-D statistical shape model with higher quality. The k-means clustering method is performed on the original geometric surface to obtain a simplified surface as standard set of landmarks to find correspondent landmarks on each mapped spherical surface obtained from demon registration in the training set. Twenty cases of left lung and right lung regions in thoracic MDCT images are used in the experiment to build two SSMs. Performance evaluation results show that SSMs generated by the proposed method achieve better generalization ability and specificity while maintaining the same compactness and accuracy of segmentation as those reported by state-of-the-art methods.","PeriodicalId":186835,"journal":{"name":"Proceedings of the 2018 International Conference on Electronics and Electrical Engineering Technology","volume":"14 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":"115910919","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}
Samuel Bimenyimana, Godwin Norense Osarumwense Asemota, Paula Jeanne Ihirwe, Ling-ling Li
Electricity is a crucial need of any modern society for improved lifestyle. Rwanda is a fast growing economy country, with some electricity access rolling out programmes and the country is trying its best to improve the national power grid infrastructure to meets its population power demand and enhance quality of life. Macroeconomic data of expenses on annual electricity consumption from EICV 4 (EICV: Enquête Intégrale sur les Conditions de Vie des ménages (French), Integrated Household and Living Conditions Survey (English)) from National Institute of Statistics of Rwanda (NISR), and price of electricity for residential customers, comprising dataset of 2311 surveyed residential dwellings were clustered by their annual electricity consumption between October 2013 and October 2014 into three groups. Statistical Package for Social Sciences (SPSS version 20), K-means clustering algorithm and Excel Data Analyses Tool results reveal that: (a) 60.2 kWh was the annual electricity consumption per person nationwide, (b) 3395 kWh (dwelling of 5 people) was the highest annual electricity consumption (Huye district, Southern Province), (c) 9.7 kWh (dwelling of 6 occupants) was lowest annual electricity consumption (Bugesera District, Eastern Province), and (d) 278.7 kWh was the average kWh annual energy consumption. K-means clustering algorithm reveals that 93.2% of surveyed dwellings annual electricity consumption was between 9.7 and 582.1 kWh.
电力是任何现代社会改善生活方式的关键需求。卢旺达是一个经济快速增长的国家，已经推出了一些电力接入方案，该国正在尽最大努力改善国家电网基础设施，以满足其人口的电力需求，提高生活质量。来自卢旺达国家统计局(NISR)的EICV 4 (EICV: Enquête intelsassale sur les Conditions de Vie des m录影带(法语)、综合家庭和生活条件调查(英语))的年度电力消费费用宏观经济数据，以及住宅客户的电力价格，包括2311个被调查住宅的数据集，按2013年10月至2014年10月的年度电力消费分为三组。社会科学统计软件包(SPSS version 20)、K-means聚类算法和Excel数据分析工具的结果表明:(a)全国人均年用电量为60.2 kWh， (b) 5人住宅年用电量最高(南方省湖野区)为3395 kWh， (c) 6人住宅年用电量最低(东部省布格塞拉区)为9.7 kWh， (d)年平均用电量为278.7 kWh。K-means聚类算法显示，93.2%的调查住宅年用电量在9.7 - 582.1千瓦时之间。
{"title":"Clustering Residential Electricity Consumption: A Case Study","authors":"Samuel Bimenyimana, Godwin Norense Osarumwense Asemota, Paula Jeanne Ihirwe, Ling-ling Li","doi":"10.1145/3277453.3277465","DOIUrl":"https://doi.org/10.1145/3277453.3277465","url":null,"abstract":"Electricity is a crucial need of any modern society for improved lifestyle. Rwanda is a fast growing economy country, with some electricity access rolling out programmes and the country is trying its best to improve the national power grid infrastructure to meets its population power demand and enhance quality of life. Macroeconomic data of expenses on annual electricity consumption from EICV 4 (EICV: Enquête Intégrale sur les Conditions de Vie des ménages (French), Integrated Household and Living Conditions Survey (English)) from National Institute of Statistics of Rwanda (NISR), and price of electricity for residential customers, comprising dataset of 2311 surveyed residential dwellings were clustered by their annual electricity consumption between October 2013 and October 2014 into three groups. Statistical Package for Social Sciences (SPSS version 20), K-means clustering algorithm and Excel Data Analyses Tool results reveal that: (a) 60.2 kWh was the annual electricity consumption per person nationwide, (b) 3395 kWh (dwelling of 5 people) was the highest annual electricity consumption (Huye district, Southern Province), (c) 9.7 kWh (dwelling of 6 occupants) was lowest annual electricity consumption (Bugesera District, Eastern Province), and (d) 278.7 kWh was the average kWh annual energy consumption. K-means clustering algorithm reveals that 93.2% of surveyed dwellings annual electricity consumption was between 9.7 and 582.1 kWh.","PeriodicalId":186835,"journal":{"name":"Proceedings of the 2018 International Conference on Electronics and Electrical Engineering Technology","volume":"26 12 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":"123576918","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}
FIR filters have many advantages such as linear phase, high precision and good stability. However, when the performance is required to be high, usually a higher order is required, resulting in greatly increased hardware complexity of the FIR filter. Based on sparse FIR filter design algorithm and common subexpression elimination method, a novel algorithm to design the FIR filters with low complexity. First, a sparse FIR benchmark filter that fulfills frequency response specifications is yielded from the sparse filters design algorithm. Then, each quantized filter coefficient is represented in CSD. And the weight of all subexpressions and isolated nonzero digits of the quantized coefficient set are computed. Finally, the filter coefficient set with lower implementation cost is constructed by iteratively admitting subexpressions and isolated nonzero digits according to their weight. The simulation results show that the proposed algorithm can saves about 29% of adder compared with other low complexity filter design algorithms, which effectively reduces the implementation complexity and greatly saves the hardware cost.
{"title":"Efficient Design of Sparse Multiplierless FIR Filters with Low Complexity","authors":"W. Xu, Anyu Li, Ruihua Zhang, Boya Shi","doi":"10.1145/3277453.3277470","DOIUrl":"https://doi.org/10.1145/3277453.3277470","url":null,"abstract":"FIR filters have many advantages such as linear phase, high precision and good stability. However, when the performance is required to be high, usually a higher order is required, resulting in greatly increased hardware complexity of the FIR filter. Based on sparse FIR filter design algorithm and common subexpression elimination method, a novel algorithm to design the FIR filters with low complexity. First, a sparse FIR benchmark filter that fulfills frequency response specifications is yielded from the sparse filters design algorithm. Then, each quantized filter coefficient is represented in CSD. And the weight of all subexpressions and isolated nonzero digits of the quantized coefficient set are computed. Finally, the filter coefficient set with lower implementation cost is constructed by iteratively admitting subexpressions and isolated nonzero digits according to their weight. The simulation results show that the proposed algorithm can saves about 29% of adder compared with other low complexity filter design algorithms, which effectively reduces the implementation complexity and greatly saves the hardware cost.","PeriodicalId":186835,"journal":{"name":"Proceedings of the 2018 International Conference on Electronics and Electrical Engineering Technology","volume":"4 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120808743","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}
When a circuit breaker switch on high voltage shunt capacitors, heavy inrush current will occur and harm the power system and some electrical devices. This paper proposes a precharge strategy to suppress the inrush current caused by capacitor switching on. The precharge strategy is used to charge a single-phase capacitor to the target value before the circuit breaker closing three phase circuit synchronously. The target value of precharge is obtained by the theoretical derivation, and a topology of precharge device is put forward based on the target value. This paper build a PSCAD simulation model to validate the proposed precharge strategy, the closing time scatter of the vacuum circuit breaker is taken into consideration as well. The simulation results show that the inrush current can be limited under 1.6p.u., closing current peaks of three phases are decreased to 0.33 times, 0.6 times and 0.5 times of the original current peaks, and the duration time of closing transient is sharply shortened. Thereby validate the proposed precharge strategy can effectively suppress the inrush current of high voltage shunt capacitors.
{"title":"Inrush Current Suppression of High Voltage Shunt Capacitors Based on Precharge","authors":"Xingtong Chen, Zhanfeng Deng, Jian-hong Hao","doi":"10.1145/3277453.3277454","DOIUrl":"https://doi.org/10.1145/3277453.3277454","url":null,"abstract":"When a circuit breaker switch on high voltage shunt capacitors, heavy inrush current will occur and harm the power system and some electrical devices. This paper proposes a precharge strategy to suppress the inrush current caused by capacitor switching on. The precharge strategy is used to charge a single-phase capacitor to the target value before the circuit breaker closing three phase circuit synchronously. The target value of precharge is obtained by the theoretical derivation, and a topology of precharge device is put forward based on the target value. This paper build a PSCAD simulation model to validate the proposed precharge strategy, the closing time scatter of the vacuum circuit breaker is taken into consideration as well. The simulation results show that the inrush current can be limited under 1.6p.u., closing current peaks of three phases are decreased to 0.33 times, 0.6 times and 0.5 times of the original current peaks, and the duration time of closing transient is sharply shortened. Thereby validate the proposed precharge strategy can effectively suppress the inrush current of high voltage shunt capacitors.","PeriodicalId":186835,"journal":{"name":"Proceedings of the 2018 International Conference on Electronics and Electrical Engineering Technology","volume":"8 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":"115318805","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}
Recently, the monitoring service for important users in the distribution network is relatively insufficient in China, which greatly influences the efficiency of power distribution. According to the requirement of optimizing operation control in modern distribution network, a Two Way Automatic Communication System (TWACS) for the transmission of monitoring data is designed in this paper. The vital issues pertaining to distribution automation in the light of the TWACS communication technology are presented and discussed. In accordance with transmission demand and channel characteristics of modern distribution network, it adopts double zero-crossing points modulation method to improve downlink communication speed, which combines Gaussian window function and matched filtering way to restrain high-frequency interference. Meanwhile, distributed uplink receiving methods and orthogonal vector reuse are used to identify the topology structure of modern distribution network which provides the basis for power flow analysis in modern distribution network. Finally, the example analyzing how to carry on topology structure of the distribution network by TWACS shows the effectiveness of this algorithm.
{"title":"TWACS and the Solutions for Modern Distribution Network","authors":"X. Ren, Liping Ju, Qing Fang","doi":"10.1145/3277453.3277456","DOIUrl":"https://doi.org/10.1145/3277453.3277456","url":null,"abstract":"Recently, the monitoring service for important users in the distribution network is relatively insufficient in China, which greatly influences the efficiency of power distribution. According to the requirement of optimizing operation control in modern distribution network, a Two Way Automatic Communication System (TWACS) for the transmission of monitoring data is designed in this paper. The vital issues pertaining to distribution automation in the light of the TWACS communication technology are presented and discussed. In accordance with transmission demand and channel characteristics of modern distribution network, it adopts double zero-crossing points modulation method to improve downlink communication speed, which combines Gaussian window function and matched filtering way to restrain high-frequency interference. Meanwhile, distributed uplink receiving methods and orthogonal vector reuse are used to identify the topology structure of modern distribution network which provides the basis for power flow analysis in modern distribution network. Finally, the example analyzing how to carry on topology structure of the distribution network by TWACS shows the effectiveness of this algorithm.","PeriodicalId":186835,"journal":{"name":"Proceedings of the 2018 International Conference on Electronics and Electrical Engineering Technology","volume":"os-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":"127767516","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 development of charging system for high power density electric vehicle is of vital importance to the development of the new generation of high-power electric vehicles. First, a soft-switching DC/DC resonant converter in Electric Vehicle is proposed, which is based respectively on silicon carbide and silicon power devices. The output power of the converter is 3.3kW, and the highest efficiency of the system can reach 98.26%.Then, the problem of parasitic inductance in Silicon Carbide devices under high frequency is analyzed, and the solution is provided. Finally, conclusions comes that the DC/DC resonant converter using SiC power devices is of lower power loss, higher system efficiency, and higher power density, which is surely favorable for the performance and efficiency of electric vehicle charging system.
{"title":"Research of Silicon Carbide LLC Resonant Converter in Electric Vehicle Charging System","authors":"Shengwei Gao, Xiaoming Liu, Xin Lu","doi":"10.1145/3277453.3277471","DOIUrl":"https://doi.org/10.1145/3277453.3277471","url":null,"abstract":"The development of charging system for high power density electric vehicle is of vital importance to the development of the new generation of high-power electric vehicles. First, a soft-switching DC/DC resonant converter in Electric Vehicle is proposed, which is based respectively on silicon carbide and silicon power devices. The output power of the converter is 3.3kW, and the highest efficiency of the system can reach 98.26%.Then, the problem of parasitic inductance in Silicon Carbide devices under high frequency is analyzed, and the solution is provided. Finally, conclusions comes that the DC/DC resonant converter using SiC power devices is of lower power loss, higher system efficiency, and higher power density, which is surely favorable for the performance and efficiency of electric vehicle charging system.","PeriodicalId":186835,"journal":{"name":"Proceedings of the 2018 International Conference on Electronics and Electrical Engineering Technology","volume":"37 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":"122181668","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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