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29,061 Article Results

Steady State Analysis of Non-Isolated Single-Input Multi-Output SEPIC Converter for Stand-alone Applications

10.11591/ijpeds.v9.i1.pp260-268
C. Anuradha , N. Chellammal , S. Vijayalakshmi , R. C. Ilambirai
This paper proposes a non-isolated three port SEPIC converter for stand-alone photovoltaic applications. The proposed topology uses the Single Input Multi Output (SIMO) structure. This topology consists of a single photovoltaic source as input and it is a unidirectional power converter. Mathematical analysis for the proposed system is performed and simulations are carried out using MATLAB/Simulink. The design parameters of capacitors and inductors are calculated from small ripple analysis. The simulation analysis for the proposed open loop topology is verified using a real time hardware setup.The entire process is carried out in Continuous Current Mode (CCM) of operation. The experimental results for hardware are verified with simulations and compared.
Volume: 9
Issue: 1
Page: 260-268
Publish at: 2018-03-01

Orthogonality Measurent of OFDM Signal

10.11591/ijeecs.v9.i3.pp595-598
Mahendra Sharma , Santhosh Kumar Singh
In recent days, Orthogonal Frequency Division Multiplexing is the technique to transmit and receive the signal without any overlapping of the signal. OFDM is also a multiplexing technique as well as modulation technique. It is a multi-carrier transmission technique in which single high data stream is divided into a number of lower rate streams that are transmitted simultaneous over some narrow sub channel. In general, OFDM avoids Inter-Symbol Interference (ISI), Inter-Carrier Interference (ICI) and fault transmissions between source and destination node. To measure the performance of the system by using the parameters like Bit Error rate (BER), Spectrum analysis and signal strength detection. Based on the parameters the best system can be identified.
Volume: 9
Issue: 3
Page: 595-598
Publish at: 2018-03-01

A New strategy for on-line Droop adjustment for Microgrid connected DGs

10.11591/ijpeds.v9.i1.pp139-149
Sathyaprabakaran B , Subrata Paul , Debashis Chatterjee
This paper proposes a simple and effective control technique for interconnection of DG resources to the power grid via interfacing converters based on Phase locked loop (PLL) and Droop control. The behaviour of a Microgrid (MG) system during the transition from islanded mode to grid-connected mode of operation has been studied. A dynamic phase shifted PLL technique is locally designed for generating phase reference of each inverter. The phase angle between filter capacitor voltage vector and d-axis is dynamically adjusted with the change in q-axis inverter current to generate the phase reference of each inverter. During fluctuations in load capacity, the grid-connected system must be able to supply balanced power from the utility grid side and micro-grid side. Therefore, droop control is implemented to maintain a balanced power sharing. The inverter operates in voltage control mode in order to control the filter capacitor voltage. An adjusted droop control method for equivalent load sharing of parallel connected Inverters, without any communication between individual inverters, has been presented. The control loops are tested with aid of MATLAB Simulink tool during several operating conditions.
Volume: 9
Issue: 1
Page: 139-149
Publish at: 2018-03-01

A New Structure of the Nine Level Inverter Used as Active Power Filter with a Reduced Number of Swiches

10.11591/ijpeds.v9.i1.pp198-209
Fethi Chouaf , Salah Saad
In the scope of this work, a new structure of the nine level inverter is proposed using a reduced number of power switches. This inverter is used as a shunt active power filter to compensate harmonic currents and the reactive power. The modeling and simulation of the proposed model were carried out in Matlab/Simulink environment. The simulation results show that the filtering performances were achieved despite the reduction of the switches number. It was found that the current waveform becomes purely sinusoidal with a reduction in the harmonic distortion rate (THD) to 2.68%. This implies good compensation of both harmonics and reactive power with a power factor closer to unity. Reducing the switches number allows reducing the switching losses and lowering the duration of the applied voltage supported by the semiconductors. The proposed topology also allows to get simple structure of the inverter with a reduced cost.
Volume: 9
Issue: 1
Page: 198-209
Publish at: 2018-03-01

Experimental Prototype Model of IDVR for Bidirectional Voltage Compensation

10.11591/ijpeds.v9.i1.pp297-304
Ramchandra Nittala , Alivelu M. Parimi , K. Uma Rao
Interline Dynamic Voltage Restorer (IDVR) is an optimum solution to compensate voltage sag in multiple lines. The IDVR consisting of two or more DVRs connected to different feeders in a power system sharing a common DC link energy. This paper presents the hardware implementation of novel bidirectional voltage sag compensation by the IDVR in multiple feeders at same instance.  A two line feeder power system with IDVR installed is considered. The IDVR is implemented using two VSI with filter. The control system of IDVR is developed using DSPACE 1103. 
Volume: 9
Issue: 1
Page: 297-304
Publish at: 2018-03-01

The Calibration Test Of Hybrid Landfill Gas -Photovoltaic-Genset Model In Bontang, East Borneo

10.11591/ijpeds.v9.i1.pp89-97
Salama Manjang , Sitti Hamnah Ahsan
The study is aimed to determine the measurement of sensor tool made in Model Real Time Hybrid LFG-PV-Genset by finding the correction factor produced at TPA Bontang City, East Borneo. The research was conducted by using ampere clammeter, variable voltage regulator, thermometer, odalog7000 series.  The calculation results  show that the calibration test of Model Real Time Hybrid LFG-PV-Genset from MQ4 sensor data that has been designed capable of having errors of 1,91% and the LM35 temperature sensor is capable of monitoring tempertures of 30°C to 120°C and has an error value of 0,519°C. ZMPT 101B voltage sensor has a linear output change to input changes and has an average error of 1.499V. While the current sensor SCT 013 has an aerage error value of 0,0022A CO2.
Volume: 9
Issue: 1
Page: 89-97
Publish at: 2018-03-01

Incursion Recognition Mechanism Based on Secure Network System

10.11591/ijeecs.v9.i3.pp543-545
A. Mohamed Divan Masood , S. K. Muthusundar
Internet based computing dissimilar services such as server storage and applications are shared on the internet. This makes cloud computing one of the most promising and rapidly growing technologies. As it relies on sharing computer resources, it is prone to various security risks. Individual such security issue is Distributed Denial of Services attack on cloud. A DDos assault can begin from anyplace in the system and normally overpowers the casualty server by sending countless. This paper deals with the prevention of DDos attacks and how honey pot approach can be used in cloud computing to counter DDos attacks.
Volume: 9
Issue: 3
Page: 543-545
Publish at: 2018-03-01

Experimental study and modeling of three grid-connected photovoltaic technologies of Meknes City

10.11591/ijpeds.v9.i1.pp390-396
L. Bouhaki , R. Saadani , R. Agounoun , K. Sbai , M. Rahmoune
Photovoltaic (PV) systems are the most promising renewable energy source in Morocco due to its abundant solar irradiation. The Moroccan government has launched various renewable energy programs to encourage the use of PV systems. In this work we present a comparative study in terms of energy produced and the efficiency of a grid connected photovoltaic (PV) system installed on the roof of the building occupied by the “Ecole Supérieure de Technologie de Meknes” (ESTM). The on-grid connected photovoltaic system has a total power of 5860 Watts (Wp). This system provides an average daily reduction of 30 kWh in the consumption of electrical energy at ESTM facilities; this will allow us to save fossil fuels and reduce emissions of greenhouse gas. The average annual production of electric power is estimated at 10.5 MWh, equivalent to burning 0.9 tons of oil, which will prevent the emission of about 2 tons / year of CO2 in the atmosphere. Three different commercial solar modules, manufactured with different materials and technologies in monocrystalline silicon, polycrystalline silicon and amorphous silicon were tested.
Volume: 9
Issue: 1
Page: 390-396
Publish at: 2018-03-01

Performance Development of A BLDC Motor Driven Water Pump Using KY Converter

10.11591/ijeecs.v9.i3.pp602-605
Anu Priya , Sasilatha Sasilatha
This paper presents a performance investigation of bldc motor employing KY converter. Conventional The landsman converter is  used to minimize the ripples but  the inverter produces high output power ripples, which in turn affect the output of the inverter in The proposed KY converter  reduces ripples and smooth dc supply gives to the inverter  then it will used to operate brushless dc motor, which inturn improves the motor performance. the electronically commutated brushless DC with voltage source inverter can be operated at fundamental frequency is to reduce switching losses which output in higher efficiency.
Volume: 9
Issue: 3
Page: 602-605
Publish at: 2018-03-01

Appropriate Switching State Selection to Avoid Capacitor Imbalance in Five-Level NPC

10.11591/ijpeds.v9.i1.pp276-285
Kuthuri Narasimha Raju , Chandra Sekhar Obbu , Ramamoorthy M
An intrinsic problem with neutral point clamped (NPC) multilevel inverters (MLI) is unbalance of capacitor voltage. There are many mitigation techniques well established in the literature to balance the neutral point voltage for 3-level inverter. These techniques employ either Carrier based pulse width modulation (CBPWM), Space vector pulse width modulation (SVPWM) or hybrid of both the PWM techniques. Balancing becomes complicated as the level of the inverter increases due to addition of capacitor junctions. The imbalance in capacitor voltages may cause uneven voltage distribution among switching devices and sometimes may cause failure. It also increases harmonic content in its output waveform. This paper develops new modulation scheme for balancing capacitor voltages for Five-level inverter .The scheme is a hybrid PWM which is a combination of both CBPWM and SVPWM techniques. As per this scheme CBPWM is applied to meet the load demand and at the zero crossings of the reference signal, CBPWM is blocked and for one carrier cycle. During this SVPWM is applied with   appropriate switching state selection to neutralize the imbalance in capacitor voltage.
Volume: 9
Issue: 1
Page: 276-285
Publish at: 2018-03-01

A Primary Study of Tracking Photovoltaic System for Mobile Station in Malaysia

10.11591/ijpeds.v9.i1.pp427-432
Ahmad Fudholi , Lim Chin Haw , Kamaruzzaman Sopian , Ahmed Mohamed Omer Abdulmula
This paper describes the performance of tracking photovoltaic (PV) system for mobile station. The system consists of tracking PV array, the battery bank, the maximum power point tracking (MPPT) controller and the DC/AC inverter). This system is the first full solar power station, which acts as pilot project by Celcom Sdn. Bhd. Success of this system shows potential of electrify rural remote area. The design is hoped to be a pioneer and acts as well-known system in order to ensure renewable energy is the future supply of electricity in far located urban area. This paper showes the record of the battery state-of-charge (SOC) as a function of time for rainy and sunny days.
Volume: 9
Issue: 1
Page: 427-432
Publish at: 2018-03-01

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
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