Majlesi Journal of Electrical Engineering最新文献_第3页

Magnitude Comparison and Sign Detection based on the 4-Moduli Set {2n+1, 2n−1, 2n+3, 2n−3} 基于4模集{2n+1，2n-1，2n+3，2n-3}的幅值比较和符号检测

Majlesi Journal of Electrical Engineering Pub Date : 2021-09-15 DOI: 10.52547/mjee.15.3.93

Mohsen Mojahed, Amir Sabbagh Molahossein, Azadeh Alsadat Emrani Zarandi

{"title":"Magnitude Comparison and Sign Detection based on the 4-Moduli Set {2n+1, 2n−1, 2n+3, 2n−3}","authors":"Mohsen Mojahed, Amir Sabbagh Molahossein, Azadeh Alsadat Emrani Zarandi","doi":"10.52547/mjee.15.3.93","DOIUrl":"https://doi.org/10.52547/mjee.15.3.93","url":null,"abstract":": The 4-moduli set residue number system (RNS), {2 𝑛 + 3,2 𝑛 − 3,2 𝑛 + 1, 2 𝑛 − 1} , with a wide dynamic range, has recently been proposed as a balanced 4-moduli set for utilizing the cases that demand fast calculations such as deep learning and implementation of asymmetric cryptographic algorithms. Up to now, only an unsigned reverse converter has been designed for this moduli set. Thus, there is a need for two separate units, a sign detection circuit, and a comparator to use this set in cases requiring sign and comparison. Nevertheless, the existence of these components demands high hardware that makes the implementation of the RNS impractical. Therefore, this paper presents the design of a sign detection circuit and a signed reverse converter that can overcome this problem by reusing the hardware. To achieve an integrated hardware design, first, we optimized the previous unsigned reverse converter for this 4-moduli set and next, we derived an approach from the structure of the reverse convertor for detecting signs and recognizing comparators. Finally, using the sign signals extracted from the reverse converter, we change reverse convertor into a unit that perform sign detection and comparison. The simulation has been conducted using ISE Design Suite 14.7 tool and the Spartan6 family technology. Empirical results show that, the proposed multifunctional unit has an approximately identical performance with respect to delay and area compared to the previous reverse converter. Besides, the proposed signed reverse converter relies on a 46% and 28% reduction in area and delay compared to the previous unsigned reverse converter which uses a comparator and also a multiplexer to detect a sign in the output.","PeriodicalId":37804,"journal":{"name":"Majlesi Journal of Electrical Engineering","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47040618","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}

引用次数: 0

Techno-Economic Impact of Electrification Rural Areas in Palestine using Micro-Grid Solar Energy “Al-Mkahel and Saeed Villages – Case Study” 使用微电网太阳能对巴勒斯坦农村地区电气化的技术经济影响“Al-Mkahel和Saeed村——案例研究”

Majlesi Journal of Electrical Engineering Pub Date : 2021-06-15 DOI: 10.52547/mjee.15.2.9

I. Ibrik, Fida Salameh

引用次数: 0

Non-Blocking and Multi Wavelength Optical Router Design based on Mach-zehnder Interferometer in 3-D Optical Network on Chip 片上三维光网络中基于马赫曾德干涉仪的无阻塞多波长光路由器设计

Majlesi Journal of Electrical Engineering Pub Date : 2021-06-01 DOI: 10.52547/mjee.15.2.73

Sanaz Asadinia, Mahdi Meheabi, E. Yaghoubi

{"title":"Non-Blocking and Multi Wavelength Optical Router Design based on Mach-zehnder Interferometer in 3-D Optical Network on Chip","authors":"Sanaz Asadinia, Mahdi Meheabi, E. Yaghoubi","doi":"10.52547/mjee.15.2.73","DOIUrl":"https://doi.org/10.52547/mjee.15.2.73","url":null,"abstract":"Due to the increasing number of cores in a chip, electronic networks on chip cannot be an effective solution for using multi-core processors. The use of optical connection technology for networks on 3D chip is an ideal choice recommended in response to delay and reliability. In optical network architecture on 3D chip, 7-port routers are used to data transfer. The structure of the optical routers in the network on the 3D optical chip affects the Performance transmission of the entire network so that the provision of optical router with minimal loss and power consumption is considered by researchers in this domain. In this study, a seven-port Non-blocking optical router based on the Mach Zehnder interferometer optical switch in the network on a 3-D optical chip is presented. This router consists of 18 Mach Zehnder interferometer optical switches that can transfer multiple wavelengths concurrently. To evaluate the proposed 7-port router in the network on the 3D optical chip, the parameters of insertion loss, bandwidth density and power consumption are considered and the simulation results represent that this router decreases the loss as much as possible and improves the use of the wavelength channel comparing to available router and has the ability to transfer 4 wavelengths simultaneously with a wavelength range of 1525-1565 nm and a data transfer rate of 20Gbps for all 42 optical links. So it is useable for optical connection on the chip.","PeriodicalId":37804,"journal":{"name":"Majlesi Journal of Electrical Engineering","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46722123","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}

引用次数: 0

Simulation and Analytical Analysis of the Blumlein Discharge Circuit for the Generation of Coherent UV Pulses in Air 空气中产生相干紫外脉冲的Blumlein放电电路的仿真与分析

Majlesi Journal of Electrical Engineering Pub Date : 2021-06-01 DOI: 10.52547/mjee.15.2.65

Muddasir Naeem, Rabiya Munawar, M. Hussain, T. Imran, A. Bhatti

引用次数: 0

Comparison of Scattering from Electrically Large PEC and PMC Targets Coated with Uniaxial Dielectric Medium based on Asymptotic Solution in Spectral Domain 基于谱域渐近解的单轴介质覆盖的大型PEC和PMC目标散射比较

Majlesi Journal of Electrical Engineering Pub Date : 2021-06-01 DOI: 10.52547/mjee.15.2.47

Maryam Samadpour Hendevari, A. Pourziad, S. Nikmehr

引用次数: 0

A ZVT Auxiliary Circuit for High Step-Up Multi-Input Converters with Diode-Capacitor Multiplier 用于二极管电容乘法器的高阶升压多输入变换器的ZVT辅助电路

Majlesi Journal of Electrical Engineering Pub Date : 2021-06-01 DOI: 10.52547/mjee.15.2.53

Sayed Hossein Mirlohi, M. Yazdani, M. Amini

{"title":"A ZVT Auxiliary Circuit for High Step-Up Multi-Input Converters with Diode-Capacitor Multiplier","authors":"Sayed Hossein Mirlohi, M. Yazdani, M. Amini","doi":"10.52547/mjee.15.2.53","DOIUrl":"https://doi.org/10.52547/mjee.15.2.53","url":null,"abstract":"In this paper, a Zero-Voltage Transition (ZVT) non-isolated high step-up multi-input DC-DC converters is proposed which employs anauxiliary cell and diode-capacitor multiplier. The auxiliary cell has only one switch and is suitable for high step converters with diode-capacitor multiplier. In the proposed converter, all semiconductor devices operate under fully soft switching condition. The main switches turn on and turn off under Zero Voltage Switching (ZVS) condition whereas the auxiliary switch turns on under Zero Current Switching (ZCS) condition and turns off under zero Voltage and Zero Current Switching (ZVZCS) condition. Also, ZCS condition at turn-off is provided for all diodesto eliminate reverse recovery issue.The structure of the proposed converter includestwo boost cells, one diode-capacitor multiplier cell, and one ZVT auxiliary circuit. Soft switching conditions for all main switches are provided by only one auxiliary circuit.The proposed converter has high step-up conversion gain without any coupledinductor. Soft switching conditions, continuous current of input sources, high efficiency,expansion capability of input sources,returning the energy of the auxiliary circuit to the diode-capacitor multiplier and low-voltage stress on switches are the main advantages of the proposed converter. The steady-state analysis of the converter and operation modes are discussed. A 160-W prototype of the proposed converter is designed and implemented.Experimental results confirmthatthe theoretical and the efficiency of the proposed converter reaches 96.4% at the nominal load","PeriodicalId":37804,"journal":{"name":"Majlesi Journal of Electrical Engineering","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41781635","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}

引用次数: 0

Gain and Bandwidth Improvement of a Cylindrical Dielectric Resonator Antenna (CDRA) by Using of Metamaterial Structures 利用超材料结构改善圆柱形介质谐振天线（CDRA）的增益和带宽

Majlesi Journal of Electrical Engineering Pub Date : 2021-06-01 DOI: 10.52547/mjee.15.2.1

S. Miri, F. Mohajeri

{"title":"Gain and Bandwidth Improvement of a Cylindrical Dielectric Resonator Antenna (CDRA) by Using of Metamaterial Structures","authors":"S. Miri, F. Mohajeri","doi":"10.52547/mjee.15.2.1","DOIUrl":"https://doi.org/10.52547/mjee.15.2.1","url":null,"abstract":"Using metamaterials on the top of the antenna’s accordance to magneto-dielectric superstrate and near zero refraction index theories causesimprovement of radiation efficiency and gain of antennas. In thisarticle, two novel metamaterial unit cells are proposed for gain and bandwidth improvement of Cylindrical Dielectric Resonator Antenna (CDRA). The first metamaterial unit cell is a negative magnetic structure including two rings implemented on both sides of RT/doroid 5880 substrate with dielectric constant of 2.2. Besides, the second metamaterial unit cell is a Double Negative Structure (DNG) realized consisting of two rings printed in one side and a thin wire in other side of RT/doroid 5880 substrate. Two77 arrays of proposed unit cells are considered and used as superstrate layers on the top of a CDRA. Also, the CDRA is made of RT/doroid 6010 material with dielectric constant of 10.2 working at the frequency of 10 GHz. Using proposed metamaterial structures as superstrate layers on the top of the CDRA causesgain and bandwidth improvement up to 3.3 dB and 4.8%,respectively. CDRA in the presence of proposed metamaterial superstrates are analyzed using a 3D full-wave simulator.","PeriodicalId":37804,"journal":{"name":"Majlesi Journal of Electrical Engineering","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45654542","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}

引用次数: 1

Random Modeling of Optimal Economic, Security and Environmental Operation of Micro-grid by Managing Responsive Loads and Charging and Discharging Electric Vehicles 通过管理响应负载和电动汽车充放电实现微电网经济、安全和环境优化运行的随机建模

Majlesi Journal of Electrical Engineering Pub Date : 2021-06-01 DOI: 10.52547/mjee.15.2.15

Alireza Bakhshinejad, A. Tavakoli, M. Moghaddam

{"title":"Random Modeling of Optimal Economic, Security and Environmental Operation of Micro-grid by Managing Responsive Loads and Charging and Discharging Electric Vehicles","authors":"Alireza Bakhshinejad, A. Tavakoli, M. Moghaddam","doi":"10.52547/mjee.15.2.15","DOIUrl":"https://doi.org/10.52547/mjee.15.2.15","url":null,"abstract":"The micro-grid operator must provide the energy required by its customers at the lowest cost and consider issues such as greenhouse gas emissions and security. The operator is faced with a multi-objective optimization problem in which customer demand must be provided at the lowest cost and safely. This research provides a new energy management system for islanded micro-grids. The small size of the islanded micro-grids, the high level of intermittentoperationand the low inertia of distributed generation ofinverter energy production resources make the frequency and voltage security two vital factors in the energy management system, which must be managed alongside economic-environmental policies. In this study, two practical tools are provided to help with the optimal operation and increase the profitability of the micro-grid operator. The first tool is the optimal and managed use of the V2G mode of electric vehicles. In the proposed approach, not only the penetration of electric vehicles in the network is managed but also this equipment is used to solve some of the network's challenges. The second tool is responsive loads and demand response programs in order to achieve the goals of the micro-grid operator. Covering the uncertainty of renewable energy sourcesby responsive loads, and how to model a demand response program in a micro-grid, arefollowed in this study.The strategy pursued several goals, including reducing energy and load costs, reducing the cost of charging EVs, and improving network parameters and security, such as voltage and frequency.The results confirm the effectiveness of the proposed approach","PeriodicalId":37804,"journal":{"name":"Majlesi Journal of Electrical Engineering","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46648109","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}

引用次数: 0

Tuning of Novel Fractional Order Fuzzy PID Controller for Automatic Voltage Regulator using Grasshopper Optimization Algorithm 基于Grasshopper优化算法的分数阶模糊PID控制器自动调压器整定

Majlesi Journal of Electrical Engineering Pub Date : 2021-03-15 DOI: 10.52547/mjee.15.2.39

M. Khaniki, M. Hadi, M. Manthouri

引用次数: 1

Soft Computing-Based Congestion Control Schemes in Wireless Sensor Networks: Research Issues and Challenges 无线传感器网络中基于软计算的拥塞控制方案:研究问题与挑战

Majlesi Journal of Electrical Engineering Pub Date : 2021-03-01 DOI: 10.52547/MJEE.15.1.39

S. S. S. Farahani

引用次数: 3