Chisel is a hardware construction language that supports advanced hardware design using highly parameterized generators and layered domain-specific hardware languages. Chisel can generate a high-speed C++ based cycle-accurate software simulator, or low-level Verilog designed to a standard ASIC flow for synthesis [1]. In this project, we choose Chisel to design dynamic shifters for linear address generator bitmask generation. When accessing a banked memory, bitmask should be generated to select different bytes in one memory row across different banks. We design a linear address bitmask hardware generator by Chisel to produce programmable linear address bitmask hardware. Our experiments are based on dynamic shifters with comparison of multiplexer-based design. Based on logic synthesis results, we have achieved lower power consumption and lower area in different configurations with little frequency loss. This paper shows an alternative design for linear address bitmask generators that demonstrate possible tradeoff for PPA (performance, power and area).
{"title":"Using Dynamic Shifters for Linear Address Bitmask Generator via Chisel3","authors":"Lin-Chieh Huang","doi":"10.1145/3508297.3508326","DOIUrl":"https://doi.org/10.1145/3508297.3508326","url":null,"abstract":"Chisel is a hardware construction language that supports advanced hardware design using highly parameterized generators and layered domain-specific hardware languages. Chisel can generate a high-speed C++ based cycle-accurate software simulator, or low-level Verilog designed to a standard ASIC flow for synthesis [1]. In this project, we choose Chisel to design dynamic shifters for linear address generator bitmask generation. When accessing a banked memory, bitmask should be generated to select different bytes in one memory row across different banks. We design a linear address bitmask hardware generator by Chisel to produce programmable linear address bitmask hardware. Our experiments are based on dynamic shifters with comparison of multiplexer-based design. Based on logic synthesis results, we have achieved lower power consumption and lower area in different configurations with little frequency loss. This paper shows an alternative design for linear address bitmask generators that demonstrate possible tradeoff for PPA (performance, power and area).","PeriodicalId":285741,"journal":{"name":"2021 4th International Conference on Electronics and Electrical Engineering Technology","volume":"239 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131723484","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 traditional array adaptive beamforming methods yield serious target loss in the presence of mainlobe jamming. Super-resolution methods based on sparse recovery can separate the mainlobe jamming from the target in the space domain, but it cannot reconstruct the target information when the angle between the jamming and the target is too small or the signal-to-noise ratio is too low. In order to solve above problems, we propose a novel super-resolution method based on the convolutional neural network. The proposed method can effectively separate the mainlobe jamming and the weak target even within the half-power mainlobe width, thus can achieve the target detection in the mainlobe jamming scenario. Simulation experiments verify the effectiveness of the proposed method.
{"title":"Target Detection in Mainlobe Jamming Using Convolutional Neural Network","authors":"Yugang Wang, K. Duan, Xingjia Yang, Xiang Li","doi":"10.1145/3508297.3508334","DOIUrl":"https://doi.org/10.1145/3508297.3508334","url":null,"abstract":"The traditional array adaptive beamforming methods yield serious target loss in the presence of mainlobe jamming. Super-resolution methods based on sparse recovery can separate the mainlobe jamming from the target in the space domain, but it cannot reconstruct the target information when the angle between the jamming and the target is too small or the signal-to-noise ratio is too low. In order to solve above problems, we propose a novel super-resolution method based on the convolutional neural network. The proposed method can effectively separate the mainlobe jamming and the weak target even within the half-power mainlobe width, thus can achieve the target detection in the mainlobe jamming scenario. Simulation experiments verify the effectiveness of the proposed method.","PeriodicalId":285741,"journal":{"name":"2021 4th International Conference on Electronics and Electrical Engineering Technology","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127991183","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}
Apart from financial transactions, blockchains are suggested for numerous application fields. While it is possible to mount generic blockchains for specific use cases, the implementation is generally lean and easy to adjust. Here we present the fundamental ideas of blockchain technology and examine a real use case for national record management over a blockchain technology. A fully customized, private, and authorized blockchain is implemented from scratch. On the basis of this use, we analyze and justify the necessity for the blockchain technology and describe the desire features of our system. We discuss in more detail about the implementation of our system. This article describes the design and implementation of national record management system by using customized blockchain. Furthermore, to provide the best user experience, we also built the web application interface with Java web application framework named PrimeFace. The implementation of a prototype revealed that the built blockchain technology from scratch is more suitable.
{"title":"Design and implementation of national record management system with blockchain","authors":"Ragouguelaba Agoda Koussema, H. Haga","doi":"10.1145/3508297.3508333","DOIUrl":"https://doi.org/10.1145/3508297.3508333","url":null,"abstract":"Apart from financial transactions, blockchains are suggested for numerous application fields. While it is possible to mount generic blockchains for specific use cases, the implementation is generally lean and easy to adjust. Here we present the fundamental ideas of blockchain technology and examine a real use case for national record management over a blockchain technology. A fully customized, private, and authorized blockchain is implemented from scratch. On the basis of this use, we analyze and justify the necessity for the blockchain technology and describe the desire features of our system. We discuss in more detail about the implementation of our system. This article describes the design and implementation of national record management system by using customized blockchain. Furthermore, to provide the best user experience, we also built the web application interface with Java web application framework named PrimeFace. The implementation of a prototype revealed that the built blockchain technology from scratch is more suitable.","PeriodicalId":285741,"journal":{"name":"2021 4th International Conference on Electronics and Electrical Engineering Technology","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116178595","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}
Zihan Li, Yi Xie, Bicheng Guo, Zhuoya Zhu, Wei Lei
This work studies the holographic recording performance of slanted and non-slanted transmission volume holographic gratings (VHGs), recorded in PVA/AA photopolymers with different spatial frequencies. The effects of the preparation conditions for VHGs were experimentally investigated. The optimum preparation conditions for holographic recording will be showed under specific spatial frequency. After optimization, the peak diffraction efficiency of VHGs reached 81%. The VHGs with a spatial frequency of 1710 lines/mm were verified to be used as the in-coupling grating of the holographic waveguide system.
{"title":"Improving of Holographic Recording Performance of PVA/AA Photopolymers","authors":"Zihan Li, Yi Xie, Bicheng Guo, Zhuoya Zhu, Wei Lei","doi":"10.1145/3508297.3508310","DOIUrl":"https://doi.org/10.1145/3508297.3508310","url":null,"abstract":"This work studies the holographic recording performance of slanted and non-slanted transmission volume holographic gratings (VHGs), recorded in PVA/AA photopolymers with different spatial frequencies. The effects of the preparation conditions for VHGs were experimentally investigated. The optimum preparation conditions for holographic recording will be showed under specific spatial frequency. After optimization, the peak diffraction efficiency of VHGs reached 81%. The VHGs with a spatial frequency of 1710 lines/mm were verified to be used as the in-coupling grating of the holographic waveguide system.","PeriodicalId":285741,"journal":{"name":"2021 4th International Conference on Electronics and Electrical Engineering Technology","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124754713","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}
W. Gu, Haibo Zhang, Jun Liang, Yingtao Sun, Yi Sun, Quanqing Yu, Honglin Zhu
This paper proposed a repetitive learning control strategy based on abc three phase static coordinate with distribution-static synchronous compensator (D-STATCOM). D-STATCOM adopts self-exciting start-up mode i, with low impulse current and good dynamic performance. In the low voltage and high current occasion, the D-STATCOMs parallel operating adopts only one centralized controller in this paper. PQ operation method is using to realize reactive current detection. The voltage outer loop adopts average voltage PI control to achieve DC voltage stability, and the current inner loop adopts repetitive learning control to ensure current tracking accuracy. Finally, the two D-STATCOMs parallel operating model is set up on the platform of PSCAD/EMTDC, the simulation results show that the proposed control strategy is feasible and efficient.
{"title":"Parallel Operation Control of D-STATCOM based on Load Current Detection","authors":"W. Gu, Haibo Zhang, Jun Liang, Yingtao Sun, Yi Sun, Quanqing Yu, Honglin Zhu","doi":"10.1145/3508297.3508303","DOIUrl":"https://doi.org/10.1145/3508297.3508303","url":null,"abstract":"This paper proposed a repetitive learning control strategy based on abc three phase static coordinate with distribution-static synchronous compensator (D-STATCOM). D-STATCOM adopts self-exciting start-up mode i, with low impulse current and good dynamic performance. In the low voltage and high current occasion, the D-STATCOMs parallel operating adopts only one centralized controller in this paper. PQ operation method is using to realize reactive current detection. The voltage outer loop adopts average voltage PI control to achieve DC voltage stability, and the current inner loop adopts repetitive learning control to ensure current tracking accuracy. Finally, the two D-STATCOMs parallel operating model is set up on the platform of PSCAD/EMTDC, the simulation results show that the proposed control strategy is feasible and efficient.","PeriodicalId":285741,"journal":{"name":"2021 4th International Conference on Electronics and Electrical Engineering Technology","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128009950","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}
Abstract: This paper mainly takes the Italian technology import project - Dalian 100% low-floor modern tram as an example to analyze the advanced nature of electrical design concept and drawing methods, the advanced processing method, and the formulation of Italian HRI company's enterprise standards, relevant technical specification and test document, etc. Through detailed comparison, this paper introduces the advanced and key electrical processing technology and method of the 100% low-floor modern tram and illustrates the important application value to our country's urban rail vehicles.
{"title":"The Analytical Investigation of Electrical Process and Technical Specification Standard for 100% Low-Floor Modern Tram","authors":"Xiaoyan Wei, Juanhong Li","doi":"10.1145/3508297.3508323","DOIUrl":"https://doi.org/10.1145/3508297.3508323","url":null,"abstract":"Abstract: This paper mainly takes the Italian technology import project - Dalian 100% low-floor modern tram as an example to analyze the advanced nature of electrical design concept and drawing methods, the advanced processing method, and the formulation of Italian HRI company's enterprise standards, relevant technical specification and test document, etc. Through detailed comparison, this paper introduces the advanced and key electrical processing technology and method of the 100% low-floor modern tram and illustrates the important application value to our country's urban rail vehicles.","PeriodicalId":285741,"journal":{"name":"2021 4th International Conference on Electronics and Electrical Engineering Technology","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121772927","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}
Industrial induction heating has much possibility in wide range of industries due to its high performance and efficiency. Dual-frequency is becoming promising in induction heating power supply as it is helpful for obtaining better surface hardening for workpieces with irregular shape. Conventional method to obtain dual-frequency is to couple two full-bridge inverters’ outputs with different frequencies through a transformer. However, redundancy increase volume and cost. Topology with single full-bridge inversion is a cost-effective solution. Con-sidering difficulty of controlling output power share in this topology, this paper proposed a decoupled power regulation method. This modulation allowing full control of both the medi-um-frequency and high-frequency power in the output. Topology of the power supply and its operational principle is firstly analyzed. Then rationale of the proposed regulation method is elaborated. After designing of the system parameters, a simulation model in Matlab/Simulink is established. Effectiveness of the proposed method is verified by simulation results.
{"title":"The Title of the Paper: Decoupled Power Regulation for Dual-Frequency Induction Heating Power Supply with Single Full-Bridge Inversion Topology","authors":"Shuhao Li, Jiawei Chen","doi":"10.1145/3508297.3508314","DOIUrl":"https://doi.org/10.1145/3508297.3508314","url":null,"abstract":"Industrial induction heating has much possibility in wide range of industries due to its high performance and efficiency. Dual-frequency is becoming promising in induction heating power supply as it is helpful for obtaining better surface hardening for workpieces with irregular shape. Conventional method to obtain dual-frequency is to couple two full-bridge inverters’ outputs with different frequencies through a transformer. However, redundancy increase volume and cost. Topology with single full-bridge inversion is a cost-effective solution. Con-sidering difficulty of controlling output power share in this topology, this paper proposed a decoupled power regulation method. This modulation allowing full control of both the medi-um-frequency and high-frequency power in the output. Topology of the power supply and its operational principle is firstly analyzed. Then rationale of the proposed regulation method is elaborated. After designing of the system parameters, a simulation model in Matlab/Simulink is established. Effectiveness of the proposed method is verified by simulation results.","PeriodicalId":285741,"journal":{"name":"2021 4th International Conference on Electronics and Electrical Engineering Technology","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129823229","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, an improved equivalent circuit model for millimeter-wave characterization of the uni-traveling-carrier photodiode (UTC-PD) device is presented, which plays an indispensable role in the improvement of its structure and performance. A de-embedding technique is proposed to extract the original characteristics of UTC-PD, which takes coupling parasitic effects into account. Moreover, we propose a set of characteristic functions according to the equivalent circuit model of UTC-PD and an analytical approach to extract model parameters is then derived based on aforementioned characteristic functions, which is more consistent with the physical meaning of the model and avoids the problem of multi-valued solution using software fitting. A high precision fit between simulated and measured S-parameters can be achieved up to 40 GHz. Therefore, the equivalent circuit model can provide guidance for the design of integrated circuits containing UTC-PD and the study of their matching circuits.
{"title":"An Equivalent Circuit Model for Uni-Traveling-Carrier Photodiode","authors":"Junjie Yang, J. Ren, Xusheng Tang, Zhihong Feng","doi":"10.1145/3508297.3508325","DOIUrl":"https://doi.org/10.1145/3508297.3508325","url":null,"abstract":"In this paper, an improved equivalent circuit model for millimeter-wave characterization of the uni-traveling-carrier photodiode (UTC-PD) device is presented, which plays an indispensable role in the improvement of its structure and performance. A de-embedding technique is proposed to extract the original characteristics of UTC-PD, which takes coupling parasitic effects into account. Moreover, we propose a set of characteristic functions according to the equivalent circuit model of UTC-PD and an analytical approach to extract model parameters is then derived based on aforementioned characteristic functions, which is more consistent with the physical meaning of the model and avoids the problem of multi-valued solution using software fitting. A high precision fit between simulated and measured S-parameters can be achieved up to 40 GHz. Therefore, the equivalent circuit model can provide guidance for the design of integrated circuits containing UTC-PD and the study of their matching circuits.","PeriodicalId":285741,"journal":{"name":"2021 4th International Conference on Electronics and Electrical Engineering Technology","volume":"50 14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129883529","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}
Enameled wires are used in solenoids, electrical actuators, and rotor and stator windings in electric machines. These wires typically comprise copper conductors, which are preferred for their balance between cost and current carrying capacity, combined with a dielectric insulating layer. This insulation is made from polymeric materials, which can provide high dielectric strength with a relatively thin coating layer. The downside of these polymers is their inherent oxygen permeability, which may have an effect on the degradation phenomena associated with the conductor material. The main focus is typically on either the conductor or the insulator, but it does not consider collective antagonistic/synergistic interactions. The results presented in this paper outline a preliminary analysis of the interaction between the conductor and the insulation layer(s), focusing primarily on the interfacial region. Thermal degradation at the copper conductor/enamel insulation interface at 250ºC for five aging time periods (100 to 500 hours) is reported. The oxidation processes of copper were studied using X-ray Photo-Electron Spectroscopy. The impact of exposure time on the type and amount of each oxide was analyzed and was related to the identified degradation phenomena.
{"title":"Copper Oxide Formations under Polymer Coatings during Accelerated Thermal Aging","authors":"Lukas L. Korcak, D. Culliton","doi":"10.1145/3508297.3508376","DOIUrl":"https://doi.org/10.1145/3508297.3508376","url":null,"abstract":"Enameled wires are used in solenoids, electrical actuators, and rotor and stator windings in electric machines. These wires typically comprise copper conductors, which are preferred for their balance between cost and current carrying capacity, combined with a dielectric insulating layer. This insulation is made from polymeric materials, which can provide high dielectric strength with a relatively thin coating layer. The downside of these polymers is their inherent oxygen permeability, which may have an effect on the degradation phenomena associated with the conductor material. The main focus is typically on either the conductor or the insulator, but it does not consider collective antagonistic/synergistic interactions. The results presented in this paper outline a preliminary analysis of the interaction between the conductor and the insulation layer(s), focusing primarily on the interfacial region. Thermal degradation at the copper conductor/enamel insulation interface at 250ºC for five aging time periods (100 to 500 hours) is reported. The oxidation processes of copper were studied using X-ray Photo-Electron Spectroscopy. The impact of exposure time on the type and amount of each oxide was analyzed and was related to the identified degradation phenomena.","PeriodicalId":285741,"journal":{"name":"2021 4th International Conference on Electronics and Electrical Engineering Technology","volume":"225 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132006968","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}
Until recently the conventional PI and PID controllers have been widely used in the load frequency control (LFC) problem. However, in today's modern power system those controllers cannot cope effectively with the increasing complexity of the power system resulting in system performance degradation. To tackle this problem, this paper proposes the application of two distributed order PID (DOPID) controllers which cover the whole range of integrals and derivatives of order -1 to order 1. Those controllers comprise with numerous fractional integrators and differentiators. The gains of the proposed controllers are optimized using the newly introduced marine predators algorithm (MPA). The analysis of the controllers is conducted in a realistic two area interconnected power system having diverse sources of power generation including communication delay, HVDC link and a geothermal power plant (GTPP) in both areas. A performance evaluation is conducted among various controllers like PIDN and FOPID with the proposed controllers and it is found that the DOPID controllers exhibit the best dynamic performance. Moreover, the transient response of the system is tested under the presence of wind power generation (WTG).
{"title":"A distributed order PID controller for load frequency control in a two-area diverse-unit power system","authors":"I. Moschos, C. Parisses","doi":"10.1145/3508297.3508319","DOIUrl":"https://doi.org/10.1145/3508297.3508319","url":null,"abstract":"Until recently the conventional PI and PID controllers have been widely used in the load frequency control (LFC) problem. However, in today's modern power system those controllers cannot cope effectively with the increasing complexity of the power system resulting in system performance degradation. To tackle this problem, this paper proposes the application of two distributed order PID (DOPID) controllers which cover the whole range of integrals and derivatives of order -1 to order 1. Those controllers comprise with numerous fractional integrators and differentiators. The gains of the proposed controllers are optimized using the newly introduced marine predators algorithm (MPA). The analysis of the controllers is conducted in a realistic two area interconnected power system having diverse sources of power generation including communication delay, HVDC link and a geothermal power plant (GTPP) in both areas. A performance evaluation is conducted among various controllers like PIDN and FOPID with the proposed controllers and it is found that the DOPID controllers exhibit the best dynamic performance. Moreover, the transient response of the system is tested under the presence of wind power generation (WTG).","PeriodicalId":285741,"journal":{"name":"2021 4th International Conference on Electronics and Electrical Engineering Technology","volume":"297 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128636716","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：