iosr-JEEE   Volume-13 ~ Issue-4 ~ July-August 2018

Abstract: In today's life VLSI plays vital role for low power consumption, small area and fast response of the electronic devices. Here 32-bit magnitude comparator is designed taken into account of low power, small area and less delay. For this novel magnitude comparator designing full adder is used .Full adder gives two outputs sum and carry which is equivalent to the output of comparator 's equal and smaller respectively..

Key Words : area, comparator, full adder, low power, Verilog, Xilinx

[1]. M. Morris Mano, Digital Logic and Computer Design.
[2]. T.Suryakalas, B. Swaroopa, Bhaskara Rao Doddi,"Circuit Design of Low area 8-bit magnitude Comparator With Low Power by Static CMOS", International Journal of Advanced Research in Computer Engineering & Technology (IJARCET) Vol. 4, Issue 10, pp 3982-86, October 2015.
[3]. Anjuli and Satyajit Anand, "2-Bit Magnitude Comparator Design Using Different Logic Styles", International Journal of Engineering Science Invention, Vol.2 ,Issue 1 , pp.13-24,January 2013.
[4]. Geetanjali Sharma, Uma Nirmal, and Yogesh Misra, "A Low Power 8-bit Magnitude Comparator with Small Transistor Count using Hybrid PTL/CMOS Logic" ,IJCEM International Journal of Computational Engineering & Management, Vol. 12, pp 110-115,April 2011.
[5]. Oguz Ergin, Kanad Ghose, Gurhan Kucuk, and Dmitry Ponomarev, "A Circuit–Level Implementation of Fast, Energy–Efficient CMOS Comparators for High–Performance Microprocessors",in IEEE International Conference on Computer Design: VLSI in Computers and Processors (ICCD‟02), pp. 115-118,2002..

Abstract: The variable frequency drives in various applications could save energy, cut costs and increase profit margins. A system with a feedback controller will attempt to drive the system to a state described by the input, such as velocity. . In the various industrial applications the induction motor is mostly used. The loads on induction motor always vary as per its application but speed of induction motor is constant & cannot match with the load demand. If load on induction motor decrease, the speed of induction motor cannot be decreases as per the load. Hence it takes rated power from supply so the energy consume by the motor is same. Hence there is energy consumption is same during load varying condition also. To overcome this problem a VFD is used in industrial application to save the energy consumption and electricity billing. Variable frequency drive (VFD) usage has increased dramatically in industrial applications. The energy saving is the main aim of our work. And this can be achieved by varying the pressure and frequency of the drive.

Key Words : Variable Frequency Drives, Pressure Transducer, VVC +, Matlab, MCT 10

[1]. Mohammed T. Lazim, Muthanna J. M. Al-khishali, Ahmed Isa. Al-Shawi, "Space Vector Modulation Direct Torque Speed Control of Induction Motor", Procedia Computer Science 5 (2011).
[2]. Jirasuwankul, N., "Simulation of Energy Efficiency Improvement in Induction Motor Drive by Fuzzy Logic Based Temperature Compensation", 3rd International Conference on Energy and Environment Research, ICEER, 7-11 September 2016, Barcelona, Spain, 2016.
[3]. Ali Saghafinia , Hew W. Ping , M. Nasir Uddin , AtefehAmindoust, "Teaching of Simulation an Adjustable Speed Drive of Induction Motor Using MATLAB/Simulink in Advanced Electrical Machine Laboratory", 13th International Educational Technology Conference Procedia - Social and Behavioral Sciences 103, 912 – 921, 2013.
[4]. Chitra ,Razia Sultana. W, J. Vanishree, Sreejith. S, Sherin Jose, Alphons J Pulickan, "Performance Comparison of Multilevel Inverter Topologies for Closed Loop v/f Controlled Induction Motor Drive", Science Direct Energy Procedia 117, 958–965, 2017.
[5]. RinchenGeongmitDorjee, "Monitoring and Control of a Variable Frequency Drive Using PLC and SCADA", International Journal on Recent and Innovation Trends in Computing and Communication ISSN: 2321-8169 Volume: 2 Issue: 10

Abstract: DC motor speed control is the important part of moving drive applications, home appliances and robot manipulators. Therefore, designing an adaptive, efficient, and more robust controller for DC motor speed control is a challenging task for the control engineers. In this paper, various intelligent techniques are designed and implemented for DC motor speed. Performance of intelligent techniques based on PID, fractional order PID, and fuzzy-PID are compared. PID controller parameters (Kp, Ki, Kd) and fractional order PID parameters (Kp, Ki, Kd, λ, μ) are optimally tuned by Genetic Algorithm. On other hand, fuzzy logic is used to tune each parameter of fuzzy-PID. Time domain specification of the speed response such as overshoot, undershoot, settling time, rise......
Key Words : DC motor, PID controller, fractional order, fuzzy logic,genetic algorithm, intelligent control

[1]. R. Sharma, K.P.S. Rana, and V. Kumar, Performance analysis of fractional order fuzzy PID controllers applied to a robotic manipulator, Expert System with Applications 41, 2014.
[2]. I. Dimeas, I. Petras, and C. Psychalinos, New analog implementation technique for fractional order controller: A DC motor control, International Journal of Electronics and Communications, 2017.
[3]. K.H. Ang, G.C.Y. Chong and Y. Li, PID control system analysis, design, and technology. IEEE Transactions on Control Systems Technology, vol.13, no.4, July, 2005.
[4]. J.G. Ziegler, N.B. Nichols, and N.Y. Rochester, Optimum settings for automatic controller, Transaction of the A.S.M.E, november, 1942.
[5]. J.C. Basilio and S.R. Matos, Design of PI and PID controllers with transient performance spesification, IEEE Transaction on Education, vol.45, no.4, November, 2002.

Abstract: Malware, also known as malicious software affects the user's computer system or mobile devices by exploiting the system's vulnerabilities. It is the major threat to the security of information in the computer systems. Some of the types of malware that are most commonly used are viruses, worms, Trojans, etc. Nowadays, there is a widespread use of malware which allows malware author to get sensitive information like bank details, contact information, which is a serious threat in the world. Most of the malwares are spread through internet because of its frequent use which can destroy large information in any system. Malwares from their early designs which were just for propagation have now developed into more advanced form, stealing sensitive and private information...........

Key Words :Malware Analysis, Mitigation, Malware Analysis Methods and Techniques, Malware Softwares, and tools etc.

[1]. Ari H, N. et al. (2014). PenerapanAnalisa Malware Pada Biscuit apt1 MenggunakanTeknikReverse Engineering. Journal of KNSI.
[2]. Anderson, B., Quist, D., Neil, J., and Lane, T. (2011). Graph BasedMalware Detection Using Dynamic Analysis. Journal in Computer Virology, 7, 247-258,http://dx.doi.org/10.1007/s11416-011-0152-x.
[3]. Andreas, M. Christopher Kruegel, and EnginKirda. (2007). Exploring Multiple Execution Paths for
[4]. Malware Analysis. In Proceeding of the IEEESymposium on Security and Privacy, Oakland, California, USA, pages 231.
[5]. Anderson, B., Storlie, C. and Lane, T. (2012). Improving Malware Classification: Bridging the Static/Dynamic Gap.

Abstract: This project presents an optimization of the Voltage doubler circuit in an energy conversion module for Radio Frequency (RF) energy harvesting system at both 900 MHz and 900Hz band. The function of the energy conversion module is to convert the radio frequency(RF) signals into direct-current (DC) voltage at the given frequency band to power the low power devices. The design is based on the Villard Voltage Doubler Circuit. A seven stage Schottky diode voltage doubler circuit is designed, modelled and simulated in this project. Multisim 11.0 and MATLAB R2012b have been used for the modelling and the simulation work. For an input of RF signal of 900MHz, the circuit can produce 3.67V across a 100 kΩ load and for 900Hz input RF signal, the circuit can produce around 7.7 V across a 100kΩ load. This voltage can be used to power low power devices and sensors in networks in place of batteries.

Key Words : RF-DC, Energy Conversion, Schottky Diode, Villard Voltage Doubler,Capacitor Manipulation

[1]. Kavuri Kasi Annapurna Devi 1, Norashidah Md. Din2, Chandan Kumar Chakrabarty2 (April 4, 2012) Optimization of the Voltage Doubler Stages in an RF-DC Convertor Module for Energy Harvesting.INTI International University, Nilai, Malaysia.Universiti Tenaga Nasional, Kajang, Malaysia.
[2]. Xiao Lu, Ping Wang, Dusit Niyato, Dong In Kim, and Zhu Han. Wireless Networks with RF Energy Harvesting: A Contemporary Survey. Nayang TechnologicalUniversity, Singapore. Sungkyunkwan University (SKKU), Korea. University of Houston, Texas, USA
[3]. Maziar Rastmanesh (April, 2013). High Efficiency RF to DC Converter With Reduced Leakage Current For RFID Applications. Dalhousie University Halifax,Nova Scotia.
[4]. N.M Din, C.K Chakrabarty, A.Bin Ismail, K.K.A Devi, and W.Y. Chen. (September 2012). Design of RF Energy Harvesting System For Energizing Low Power Devices.
[5]. University Tenaga Nasional, Putrajaya Campus, Kajang-43000, Malaysia, INTI International University, Nilai-71800, Malaysia.

Abstract: In general during light loading conditions, the feeder voltage may raise significantly and vice versa for heavy loading conditions. In addition, the increasing trend of different Distribution Generation (DG) is focusing the need of feeder voltage regulation within the specified limits due to reversal of power flow from load centers to the generation centres. In this paper, the locations of multiple types of DG systems are placed optimally based on voltage stability index and the optimal sizing of DG systems are obtained using Time–Variant Acceleration Coefficient–Particle Swarm Optimization (TVAC–PSO). The proposed methodology is applied on a standard 12-bus radial distribution system and the simulation results are validating the proposed methodology for real-time applications.

Key Words : Radial distribution system, distribution generation, optimal location and sizing, time–variant acceleration coefficient–particle swarm optimization

[1]. Prakash, K., and M. Sydulu. "Particle swarm optimization based capacitor placement on radial distribution systems." Power Engineering Society General Meeting, 2007. IEEE. IEEE, 2007.
[2]. Rao, R. Srinivasas, S. V. L. Narasimham, and M. Ramalingaraju. "Optimal capacitor placement in a radial distribution system using plant growth simulation algorithm." International journal of electrical power & energy systems 33.5 (2011): 1133-1139.
[3]. Yu, Xin-mei, Xin-yin Xiong, and Yao-wu Wu. "A PSO-based approach to optimal capacitor placement with harmonic distortion consideration." Electric Power Systems Research 71.1 (2004): 27-33.
[4]. Shuaib, Y. Mohamed, M. Surya Kalavathi, and C. Christober Asir Rajan. "Optimal capacitor placement in radial distribution system using gravitational search algorithm." International Journal of Electrical Power & Energy Systems 64 (2015): 384-397.
[5]. Liang, Ruey-Hsun, Yu-Kai Chen, and Yie-Tone Chen. "Volt/Var control in a distribution system by a fuzzy optimization approach." International Journal of Electrical Power & Energy Systems 33.2 (2011): 278-287..

Abstract: Ordinary single-phase inverter gives a square wave output which when applied to electrical appliances may damage the later, reduce its efficiency as well as life as this inverter output waveform is not sinusoidal and contains lower and higher order harmonics in addition to fundamental. Moreover, the output voltage cannot be controlled. In this paper a single phase full-bridge inverter with controlled output voltage and with selective harmonic elimination from the output voltage waveform is discussed using MOSFETs, which reduces the cost of filter and thus improves the inverter voltage waveform. When this inverter is connected to any electrical appliance, this will not affect the life and efficiency of the same due to absence of dominating lower order harmonics, moreover, it is possible to control the output voltage. The idea can be extended to develop three phase inverter with adjustable output voltage and with improved waveform.

Key Words :-Harmonic Factor (HF), inverter, power semiconductor devices, SHE-PWM technique, simulation, total harmonic distortion (THD), transcendental equation.

[1]. Essam Hendawi, "Single Phase Inverter with Selective Harmonics Elimination PWM Based on Secant Method," International Journal Of Engineering Inventions, E-ISSN:2278-7461, P-ISSN:2319-6491, Vol.4, Issue [August 2015], PP:38-44.
[2]. SELECTIVE HARMONIC ELIMINATION OF SINGLE PHASE VOLTAGE SOURCE INVERTER USING ALGEBRAIC HARMONIC ELIMINATION APPROACH, Https://Www.Researchgate.Net
[3]. STATIC INVERTER WITH NEUTRALIZATION OF HARMONICS, A. Kernick, J. L.Roof, T. M. Heinrich. AIEE Transactions, Pt. I I(Applications And Industry), Vol. 81, May 1962. Pp. 59-68 Books:
[4]. Muhammad H. Rashid, "Power Electronics".
[5]. Daniel W. Hart, "Power Electronics".

Abstract: To evaluate the power quality of a power system which is necessary to monitor the power quality of the power supply environment. The purpose of monitoring is mainly to determine power quality problems or to assess power consumption at a specific location. The ideal power supply quality should have the characteristics of such as no voltage variation, no power outage, and no frequency variation. In this research, use the low voltage event recorder to collect data, analyze data and to judge including five kinds of Irregular power quality voltage events such as voltage swell, voltage sag, power interruptions, frequency changing and voltage transients. By statistically and analyzing the above five abnormal voltage parameters or waveform changes that can infer the power quality of the power supplier with discriminated by quantization. There are selected two types of research objects.............

Key Words :-Power quality, voltage parameters, voltage events, frequency changing, and power interruptions..

[1]. Pradeep Kumar, "A Review of Power Quality Problems, Standards and Solutions", International Research Journal of Engineering and Technology (IRJET), 4(1), pp. 1765~1775.
[2]. Miska Prasad, A.K. Akella," Mitigation of Power Quality Problems Using Custom Power Devices: A Review", Indonesian Journal of Electrical Engineering and Informatics (IJEEI), 5(3), September 2017, pp. 207~235.
[3]. Mustafa Inci, Mehmet Buyuk, Adnan Tan, Kamil Cagatay Bayindir, Mehmet Tumay, "Multipurpose Compensation Scheme for Voltage Sag/Swell and Selective Harmonics Elimination in Distribution Systems", Advances Electrical and Electronic Engineering, DOI: 10.15598/aeee. 16(1), 2018
[4]. Syed Suraya, P. Sujatha, P. Bharat Kumar," Contemporary Control of DG Integrated DVR for Sag, Swell and Harmonic Mitigation", international Journal of Electrical and Computer Engineering (IJECE), 8(5) , 2018, DOI: 10.1109 /ISS1.2017.8389274.
[5]. Mohammad Imran ; S.M. Kulkarni ; S.V. Murkute, "Dynamic voltage restorer for mitigation of voltage sag and swell", 2017 International Conference on

Abstract: Thegeometric dilution of precision is widely used as criterion for selecting the best set of the measurement devices. Some methods had been proposed to find the value of theGeometric Dilution of Precision (GDOP), such as using inverse matrix to solve the linear equation.But it takes a large amount of computing to find the optimal solution. In this paper, we proposed a method which use neural network with gradient descent adaptive learning rate training algorithm to approximate the value of GDOP. By the simulation results, it is suggested to combine the service base station with three others to estimate the position of mobile station.This will significantly reduce the computational complexity.

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