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29,922 Article Results

Using Encryption Square Keywith One-Dimensional Matrix for Enhancing RGB Color Image Encryption-Decryption

10.11591/ijeecs.v9.i3.pp771-777
Mohammad Rasmi AL-Mousa , Fadi Al-salameen , Khaled Eisa Alqawasmi
Recently, the security of digital images becomes an important issue with the rapid growth of digital communication and multimedia application. Recent cryptography algorithms are providing essential techniques to protect information and multimedia data. However, those algorithms are usually suffering from the problem of time-consuming. Encryption algorithms have been growth quickly and many image encryption methods have been used to protect information and multimedia data from unauthorized access. This research presents effective technique for image encryption which employs Red, Green and Blue (RGB) components of the RGB color image. The proposed technique utilizes matrix multiplication and inverse matrices for encryption-decryption purpose. Moreover, the effectiveness of the proposed encryption-decryption techniques lay on minimizing the encryption-decryption time and the square error between the original and the decrypted image.  The evaluations of the proposed technique were done using many images with different sizes, while the ex perimental results show that the improved encryption technique time are greatly reduced compared with “RGB Color Image Encryption-Decryption Using Gray Image” method.  The proposed technique has a high confidentiality level through using confusion diffusion sequentially with a square matrix key and two vectors keys. However, those keys are generated randomly and make the process of hacking the image very difficult.
Volume: 9
Issue: 3
Page: 771-777
Publish at: 2018-03-01

SVPWM for 3-phase 3-level Neutral Point Clamped Inverter Fed Induction Motor Control

10.11591/ijeecs.v9.i3.pp703-710
Palanisamy R , K. Vijayakumar
This paper gives Space Vector Pulse Width Modulation (SVPWM) for 3-phase 3-level Neutral Point Clamped (NPC) inverter fed induction motor control. A conventional two level inverter with 3-phase system has been developed for induction motor control. When it is applied for high voltage and power applications, which increases the voltage stress across the switch and harmonic content in the output. So multilevel inverter is much suitable for induction motor control, which provides nearly sinusoidal output voltage and diminished harmonic content in the output. Also the stator current of induction motor is minimsed, speed and torque of induction motor controlled with appropriate switching NPC inverter using SVPWM method. The proposed system simulation are verified using matlab simulink. 
Volume: 9
Issue: 3
Page: 703-710
Publish at: 2018-03-01

Intensity and Trustworthiness Awake Delay Perceptive Routing for Submarine WSNs

10.11591/ijeecs.v9.i3.pp546-548
Devakumar Devakumar , V. Balamurugan
Submarine Wireless Sensor Networks (SWSNs) have earned important concentration of both university and manufacturing in current years. In this paper, we introduce intensity and trustworthiness awake delay perspective (ITADP) routing protocol for submarine WSNs. We get inspiration from Submarine Opportunistic Routing (SOR) protocol that explains expected end-to-end latency from Sender sensor to sink. We consider two faults in SOR. Initially, in SOR protocol, sensor transmit the information to intermediate node that have higher trustworthiness missing the depth of the forwarder node, thus create more hop counts. The coordination time of intermediate sensor cluster is second fault that increases the latency. Thus, we introduce Intensity and trustworthiness awake routing in submarine WSNs.
Volume: 9
Issue: 3
Page: 546-548
Publish at: 2018-03-01

Modeling Portable Manager Aiding in the MANET Communication

10.11591/ijeecs.v9.i3.pp572-576
Ganesh Kumar , A. Arivazhagan
The aim of this paper is to model the Portable Manager and allow it to aid in communication among Mobile Ad-hoc Networks (MANETs) carrying information across the mobile nodes in the network. In this article, Modeling Portable Manager aiding in the MANET Communication (MMAC) is proposed. The novelty is present in the use of node performance parameter called as α defined as the ratio of the packet received, packet loss and delay of the node which could be used for the next hop selection in the mobile ad hoc network. The Portable Manager (PM) is used to find out the relay node in the network. The working of the PM with a minimal number of nodes is analyzed and presented through the simulations in the network simulator.
Volume: 9
Issue: 3
Page: 572-576
Publish at: 2018-03-01

Design, Control and Monitoring of an Offline Mobile Battery Energy Storage System for a Typical Malaysian Household Load Using PLC

10.11591/ijpeds.v9.i1.pp180-188
Nabil Mohammed , Kumeresan A. Danapalasingam , Ahmed Majed
Battery energy storage system (BESS) is used in many practical applications including uninterruptible power supplies (UPS), portable devices, electrical vehicles and renewable energy systems. To utilize BESS effectively, an efficient control operation is required. Various controllers have been introduced in the open literature. However, they are not considered the best fit due to their limitations. This includes their incapability of handling high-power rating BESS, low noise immunity, short life cycle and limited number of input and output interfaces. In this paper, the programmable logic controller (PLC) is used to control and monitor a 158.8 kWh offline BESS for a typical Malaysian household. TIA Portal V13 software by siemens is used to program the proposed PLC control. Human machine interface(HMI) system is used to monitor and simulate the control performance. The results show that the PLC approach provides an efficient and reliable control of the BESS in which a compact protection against the battery overcharging, under-discharging and overheating is achieved.
Volume: 9
Issue: 1
Page: 180-188
Publish at: 2018-03-01

High Efficiency Harmonic Harvester Rectenna for Energy Storage Application

10.11591/ijpeds.v9.i1.pp252-259
Deepak Kumar , Kalpana Chaudhary
This work presents harmonic harvester Rectenna integrated power management circuitry for improving RF-DC power conversion efficiency. The circuitry is developed for battery charging or energy storage application; resistance emulation method is used to realize a matching load resistance at output terminals. The proposed technique is useful for harvesting near maximum output power from the dual rectifiers (fundamental and harmonics) independently. Also, it delivers the combined maximal power to the energy storage cell. The power management module based on dual input buck-boost converter with simple open loop control is utilized.
Volume: 9
Issue: 1
Page: 252-259
Publish at: 2018-03-01

Analysis of High Voltage High Power Resonant Converters

10.11591/ijpeds.v9.i1.pp174-179
Bhuvaneswari C , R. Samuel Rajesh Babu
Various Resonant Converters for high voltage and high power applications have been designed. Different Topologies of LLC, LCC, and CLL Resonant Converters have been simulated and compared for the same input voltage. The simulation was done at a very high frequency. The Output Power and the Efficiency of all the three Resonant Converters were calculated.With the results, it has been proved that LCC Resonant Converters were very much suited to give an output voltage of around 62 Kilovolts with a output power of 20 kilowatts.
Volume: 9
Issue: 1
Page: 174-179
Publish at: 2018-03-01

Hybrid electromagnetic suspension for high-speed vacuum transport

10.11591/ijpeds.v10.i1.pp74-82
Nikolay Grebennikov , Alexander Kireev , Nikolay Kozhemyaka , Gennady Kononov
The given paper presents a hybrid electromagnetic suspension designed for high-speed vacuum transport, where the main levitation force is generated by permanent magnets, while the electromagnet controls the air gap. The computer model is designed by means of MATLAB/Simulink software package, which allows us to simulate the dynamic operational modes of the system. The calculated studies are carried out when the vehicle accelerating to 1000 km/h with account of track irregularities. Permanent magnets incorporated in the system of electromagnetic suspension make it possible to reduce the energy consumption needed for levitation force generation. 
Volume: 10
Issue: 1
Page: 74-82
Publish at: 2018-03-01

Implementation of Cascaded based Reversing Voltage Multilevel Inverter using Multi Carrier Modulation Strategies

10.11591/ijpeds.v9.i1.pp220-230
S. Nagaraja Rao , D. V. Ashok Kumar , Ch. Sai Babu
In this paper, a cascaded based reversing voltage (CBRV) multilevel inverter structure is proposed inorder to compensate the major drawbacks in the conventional multilevel inverters. The proposed topology requires less number of components, less carrier signals and gate drives when compared to existing multilevel inverters particularly at higher levels. Therefore, the complexity and overall cost are greatly reduced particularly for higher output voltage levels. This paper also presents the most relevant control and modulation methods by a triangular based multi carrier pulse width modulation (PWM) scheme for the proposed CBRV inverter topology. This paper presents a comparison between different modulation strategies for CBRV inverter topology based on sinusoidal and space vector references with multi triangular carrier waves. The work strive hard to present the scrutiny that has been made between various PWM control techniques for 1–Ф seven level CBRV inverter structure. The comparison is made in terms of Total Harmonic Distortion (THD) and fundamental RMS voltage. Finally, the simulation results are included to verify the effectiveness of the proposed CBRV inverter topology and validate the proposed theory. A hardware set up was developed for a 1–Ф seven level CBRV inverter topology using FPGA based pulse generation.
Volume: 9
Issue: 1
Page: 220-230
Publish at: 2018-03-01

Design of Optimal LLCL Filter with an Improved Control Strategy for Single Phase Grid Connected PV Inverter

10.11591/ijpeds.v9.i1.pp114-125
K. Arulkumar , D. Vijayakumar , K. Palanisamy
The third order LLCL filter is gaining more attractive in grid connected PV inverter in terms of material cost saving than LCL filter. Several active and passive damping techniques prevail in mitigating the resonance problem for maintaining the grid power quality standards. In this paper an improved passive damping is examined with reduction of power loss for the LLCL filter. Particularly, it reduces the switching ripple much better than LCL filter, with a decrease in volume of the inductance. The filter design is also developed for the operation of stiff grid. Mathematical operations and transfer function are derived with frequency response for the accuracy of the filter design. In addition, comparative analysis of passive and improved passive damping control is proposed. The control strategy is improved with feedback linearization in order to avoid the glitches in inverter control and is verified with prototype grid connected PV inverter.
Volume: 9
Issue: 1
Page: 114-125
Publish at: 2018-03-01

Grid Interconnected Photo Voltaic System Using Shunt Active Filter for Power Quality Improvement

10.11591/ijpeds.v9.i1.pp365-376
Kala Rathi , N. Rathina Prabha
Now-a-days, power generation and utilization became more complicated which further affects the economy of a country. The available non-renewable energy sources that supply the demanded power do not consider environmental challenges like global warming and pollution. This leads to the development of power generation based on Renewable Energy Resources (RES). These RES are connected to the grid through power electronic converters which offer countless power quality issues that must be rectified to deliver a quality power to the end users. The proposed work uses a three phase Voltage Source Inverter (VSI) based Shunt Active Power Filter (SAPF) fed by solar Photo Voltaic (PV) system to eliminate current harmonics at the source side of the grid. The output of the PV system is given to a boost converter along with self–lift single-ended primary-inductor converter (SEPIC) for supplying high voltage gain which is accompanied by a Perturb & Observe Maximum Power Point Tracking (MPPT).The main objective of this paper is to eliminate the current harmonics at the grid side using SAPF. Also, the proposed SAPF is used for exporting the power generated from PV to the grid. The overall system performance is validated with a help of MATLAB/SIMULINK.
Volume: 9
Issue: 1
Page: 365-376
Publish at: 2018-03-01

Review of the most applicable regulator collections to control the Parallel Active Power Filter

10.11591/ijpeds.v9.i1.pp323-335
Belkacem Gasmi , Othmane Abdelkhalak
This work presents a study of the three-phase parallel active power filter and the various controllers used in its control. Moreover, in order to improve the quality of electrical energy, by making it conform to the new normative constraints, we have also been led to develop and apply advanced automation methods. In this framework, this paper reports of several regulatory structures : fuzzy logic, PWM, new space vector PWM (NSVPWM), space vector PWM (SVPWM), HYSTERESIS moreover, in order to produce a parallel active filter, a thorough study of experimental feasibility was carried out, taking into account the industrial constraints of the product both in its design and its application.
Volume: 9
Issue: 1
Page: 323-335
Publish at: 2018-03-01

Correlation between Battery Voltage under Loaded Condition and Estimated State of Charge at Valve-Regulated Lead Acid Battery on Discharge Condition using Open Circuit Voltage Method

10.11591/ijpeds.v9.i1.pp357-364
Ahmad Qurthobi , Anggita Bayu Krisna Pambudi , Dudi Darmawan , Reza Fauzi Iskandar
One of the common methods that developed to predict state of charge is open circuit voltage (OCV) method. The problem which commonly occurs is to find the correction parameter between open circuit voltage and loaded voltage of the battery. In this research, correlation between state of charge measurement at loaded condition of a Panasonic LC-VA1212NA1, which is a valve-regulated lead acid (VRLA) battery, and open circuit voltage had been analyzed. Based on the results of research, correlation between battery’s measured voltage under loaded condition and open circuit voltage could be approached by two linearization area. It caused by K v ’s values tend to increase when measured voltage under loaded condition V M < 11.64 volt. However, K v values would be relatively stable for every V M ≥ 11.64 volts. Therefore, estimated state of charge value, in respect to loaded battery voltage, would increase slower on V M < 11.64 volts and faster on other range.
Volume: 9
Issue: 1
Page: 357-364
Publish at: 2018-03-01

Performance Analysis of H-bridge and T-Bridge Multilevel Inverters for Harmonics Reduction

10.11591/ijpeds.v9.i1.pp231-239
S. Usha , C. Subramani , A. Geetha
This paper deals with the design of cascaded 11 level H- bridge inverter. It includes a comparison between the 11 level H-bridge and T-bridge multilevel inverter. The cascaded inverter of higher level is a very effective and practical solution for reduction of total harmonic distortion (THD).These cascaded multilevel inverter can be used for higher voltage applications with more stability. As the level is increased the output waveform becomes more sinusoidal in nature. The inverter is designed using multicarrier sinusoidal pulse width modulation technique for generating triggering pulses for the semiconductor switches used in the device. Through this paper it will be proved that a cascaded multilevel H-bridge topology has higher efficiency than a T-bridge inverter, as whichever source input voltage is provided since input is equal to the output voltage. In T-bridge inverter, the output obtained is half of the applied input, so efficiency is just half as compared to H-bridge. The output waveform is distorted and has higher THD.  The simulation is performed using MATLAB /Simulink 2013 software.
Volume: 9
Issue: 1
Page: 231-239
Publish at: 2018-03-01

Improvement of Garbage Management for NAND Memory System

10.11591/ijeecs.v9.i3.pp539-542
A. Thileepan , S. Ramachandran
Recent days increasing the use of flash memory device in embedded systems. Diverse qualities of NAND blaze recollections from hard circles include: a constrained square eradicate check, the inconceivability of set up refresh, and asymmetry in operation granularity. Along these lines different rubbish accumulation procedures for the NAND streak recollections have been proposed. In any case, existing rubbish accumulation procedures obstruct square wear leveling since they utilize a similar technique for both hot and icy information. In this paper, we propose effective junk accumulation and piece administration strategies to enhance piece wear leveling and trash gathering speed. Above all else, information is arranged into three sorts concurring to alteration recurrence - hot information, cool information, and warm data and distinctive sorts of information are put away in various pieces. The delete cost is figured considering information sort, and afterward junk gathering is performed for the hinders whose eradicate costs surpass the limit esteem. Furthermore, unique square records are made in RAM by information sort, and the squares are orchestrated in the request of their eradicate cost.
Volume: 9
Issue: 3
Page: 539-542
Publish at: 2018-03-01
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