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29,061 Article Results

Rotary Switched Reluctance Actuator: A Review on Design Optimization and Its Control Methods

10.11591/ijpeds.v8.i3.pp1087-1100
Siau Ping Tee , Mariam Md Ghazaly , Shin Horng Chong , Irma Wani Jamaludin
A switched reluctance actuator (SRA) is a type of electromagnetic stepper actuator that is gaining popularity for its simple and rugged construction, ability of extremely high-speed operation and hazard-free operation. SRA gained supremacy over permanent magnet actuators due to the fact that its building material are relatively low cost compared to the expensive and rare permanent magnets. SRA is already making its debut in automotive, medical and high precision applications. However, many parties are still oblivious to this new age actuator. This paper reviews the latest literature in terms of journal articles and conference proceedings regarding the different design parameters and control method of SRA. The impact of the parameters on the performance of SRA are discussed in details to provide valuable insight. This paper also discussed the advantages of various novel SRA structure designs that prove to be a huge contribution to the future technology. It is found that several design parameters such as the air gap when kept minimum, increases torque value; while increasing number of phases in SRA minimizes torque ripples. Increased stator and rotor arc angles will increase torque, not to mention a larger excitation current can also achieve the same effect. Researches are often done through Finite Element Method (FEM) analysis to verify the optimized design parameters before fabrication, whilst experimental procedures are executed to verify the simulation results. To ensure smooth phase switching and improved torque output, intelligent controllers are employed in speed control and direct torque control (DTC) methods of SRA.
Volume: 8
Issue: 3
Page: 1087-1100
Publish at: 2017-09-01

Modeling, Analysis and Comparative of Down Sampling based Clamping SV PWM for Cascaded and Diode Clamped Multilevel Inverter fed Induction Motor Drive

10.11591/ijeecs.v7.i3.pp698-707
Ravikumar Bhukya , P. Satish Kumar
This paper presents investigation and performance analysis of novel down sampling based  clamping SV PWM technique for diode and cascaded Multi-level Invereter fed to Induction motor drive. A novel down sampling based clamping SVPWM has developed by adding triangular off set to sinusoidal fundamental waveform is modified by down sampling the reference wave by order of 10 so this technique is called clamping space vector pulse width modulation techniques such as PD, POD and APOD. so as to shift the lower order harmonics to higher order side. This novel carrier is compared with the offset injected space vector reference waveform to generate the required PWM pulses to the inverter. To analyze the performance of the proposed PWM technique it is implemented on  seven level diode and cascaded Multi-level Inverter using Matlab/Simulink software tool for output line, phase voltage, currents, speed, torque and Total harmonic distortion analysis.
Volume: 7
Issue: 3
Page: 698-707
Publish at: 2017-09-01

High Performance Maximum Power Point Tracking on Wind Energy Conversion System

10.11591/ijpeds.v8.i3.pp1359-1367
Dwiana Hendrawati , Adi Soeprijanto , Mochamad Ashari
This paper presents the maximum power point tracking (MPPT) to extract the power of wind energy conversion system (WECS) using the Firefly Algorithm (FA) algorithm. This paper aims to present the FA as one of the accurate algorithms in MPPT techniques. Recently, researchers tend to apply the MPPT digital technique with the P n O algorithm to track MPP. On the other hand, this Paper implements the FA included in the digital classification to improve the performance of the MPPT technique. Therefore, the FA tracking results are verified with P n O to show the accuracy of the MPPT algorithm. The results obtained show that performance is higher when using the FA algorithm
Volume: 8
Issue: 3
Page: 1359-1367
Publish at: 2017-09-01

Firefly Algorithm Solution to Improving Threshold Distributed Energy Efficient Clustering Algorithm for Heterogeneous Wireless Sensor Networks

10.11591/ijai.v6.i3.pp91-99
Baghouri Mostafa , Chakkor Saad , Hajraoui Abderrahmane
The improvement of the lifetime of heterogeneous wireless sensor networks is a challenge for many researches. One of the most important protocols to achieve this goal is to divide the network into clusters that run by a single node called cluster head and the others have attached. However, all nodes must form the cluster including the nearest nodes to the base station which should be excluded from the clustering process. Furthermore these nodes consume more energy since each member node communicates directly with their cluster head and not with the base station. To eliminate these notes from cluster process, we need to formulate a new energy total of the network which depends on the number of these nodes. In this paper we propose a new technic to optimize this energy which basing on the firefly algorithm. The developed approach allows the boundary of the excluded nodes efficiently. Computer simulation in MATLAB proves the superiority of this method concerning the increase of the lifetime and the number of the received packet messages compared to the others protocols.
Volume: 6
Issue: 3
Page: 91-99
Publish at: 2017-09-01

A Simplified Space Vector Pulse Width Modulation Method Including Over Modulation Operation for Five Level Cascaded H-bridge Inverter with FPGA Implementation

10.11591/ijpeds.v8.i3.pp1203-1211
Bogimi Sirisha , P. Satish Kumar
This paper presents simplified control strategy of Space Vector Pulse Width Modulation method  including over modulation region  with linear transfer characteristic for cascaded H-bridge inverters. Because of large number of switching states of the cascaded H- Bridge inverter, the over modulation operation is very complex. And also requires incorporation of  both under modulation and over modulation algorithms. The proposed control method is effective in terms of selecting the optimal switching states with reduced computational complexity using simplified linear calculations which makes it easier for digital implementation. The performance of the proposed method  is simulated and tested experimentally through Spartan 3A FPGA processor for five level Cascaded H-bridge Inverter. The simulation results and harmonic analysis of voltage and current at various modulation indexes as are presented which are in well agreement.
Volume: 8
Issue: 3
Page: 1203-1211
Publish at: 2017-09-01

Genetic Algorithm for Grammar Induction and Rules Verification through a PDA Simulator

10.11591/ijai.v6.i3.pp100-111
Hari Mohan Pandey
The focus of this paper is towards developing a grammatical inference system uses a genetic algorithm (GA), has a powerful global exploration capability that can exploit the optimum offspring. The implemented system runs in two phases: first, generation of grammar rules and verification and then applies the GA’s operation to optimize the rules. A pushdown automata simulator has been developed, which parse the training data over the grammar’s rules. An inverted mutation with random mask and then ‘XOR’ operator has been applied introduces diversity in the population, helps the GA not to get trapped at local optimum. Taguchi method has been incorporated to tune the parameters makes the proposed approach more robust, statistically sound and quickly convergent. The performance of the proposed system has been compared with: classical GA, random offspring GA and crowding algorithms. Overall, a grammatical inference system has been developed that employs a PDA simulator for verification.
Volume: 6
Issue: 3
Page: 100-111
Publish at: 2017-09-01

Random Projection-based Cancelable Template Generation for Sparsely Distributed Biometric Patterns

10.11591/ijeecs.v7.i3.pp877-886
P. Punithavathi , S. Geetha
Cancelable biometrics, a template transformation approach, attempts to provide robustness for authentication services based on biometrics. Several biometric template protection techniques represent the biometric information in binary form as it provides benefits in matching and storage. In this context, it becomes clear that often such transformed binary representations can be easily compromised and breached. In this paper, we propose an efficient non-invertible template transformation approach using random projection technique and Discrete Fourier transformation to shield the binary biometric representations. The cancelable fingerprint templates designed by the proposed technique meets the requirements of revocability, diversity, non-invertibility and performance. The matching performance of the cancelable fingerprint templates generated using proposed technique, have improved when compared with the state-of-art methods.
Volume: 7
Issue: 3
Page: 877-886
Publish at: 2017-09-01

Performance Comparison of Fuzzy Logic and Proportional-integral for an Electronic Load Controller

10.11591/ijpeds.v8.i3.pp1176-1183
Muhammad Irfan , Machmud Effendy , Nur Alif , Lailis Syafaah , Ilham Pakaya , Amrul Faruq
Generally, Electronic Load Control (ELC) used in micro hydro power plant (MHPP) to controls the voltage between consumer load and a dummy load, still detects one parameter voltage or frequency generator only. Whereas in reality, any changes in the load on consumers, generator voltage and frequency also changed. When the consumer load down the electric current will be supplied to the dummy load, amounting to decrease in consumer load. When there is a transfer load, there will be distortion voltage and frequency, thus a special methods to reduce distortions by speeding up the process of transferring the electric load is needed. The proposed of this study is using fuzzy logic algorithm.To realize such a system, a comparison tool model of load control digital electronic fuzzy logic controller (FLC) and Proportional Integrator (PI) is required. This modeling using matlab program to simulate, the simulation result shows that the ELC based  on fuzzy logic controller is better than conventional PI control, it seen from fast response to steady state condition.
Volume: 8
Issue: 3
Page: 1176-1183
Publish at: 2017-09-01

Harmonic Elimination Using STATCOM for SEIG Fed Induction Motor Load

10.11591/ijpeds.v8.i3.pp1026-1034
Satyanarayana Gorantla , Goli Ravi Kumar
Non-linear loads connected to distribution system induce harmonics in to source components and the presence of harmonics in source components affects the performance of other sensitive loads connected at the same point. Induction motor load for drive system should be operated with variable frequency and variable voltage for its speed control. To vary the voltage and frequency, induction motor is fed from an inverter. This total drive set-up constitutes non-linear load type and will be the source of harmonics. This paper depicts the suppression of harmonics with STATCOM in distribution system when induction motor load is fed from SEIG (singly excited inductin generator). STATCOM is controlled with simple synchronous reference frame theory and the results are shown for source current, load current. THD in source current and load current was also shown for the said system. System for single-phase and three-phase induction motor drive was developed and results are shown using MATLAB/SIMULINK software.
Volume: 8
Issue: 3
Page: 1026-1034
Publish at: 2017-09-01

Hybrid Fuzzy Sliding Mode Speed Control for an Electric Vehicle Drive

10.11591/ijpeds.v8.i3.pp1050-1061
Ibrahim Farouk Bouguenna , Ahmed Azaiz , Ahmed Tahour , Ahmed Larbaoui
This paper  present a speed hybrid fuzzy-sliding mode control (HFSMC) of a permanent magnet synchronous motor (PMSM) to ensure the traction of an electric vehicle; at the first we applied the sliding mode control (SMC) with three surfaces on the PMSM by  taking into account the dynamics of the vehicle; And afterwards we applied the fuzzy-sliding mode   in which the surface of the speed is replaced by a Fuzzy-PI controller; Simulation under Matlab/Simulink has been carried out to evaluate  the efficiency and robustness of the proposed control on a system drive. It should be noted that the reference speed is the European urban driving schedule ECE-15 cycle.
Volume: 8
Issue: 3
Page: 1050-1061
Publish at: 2017-09-01

Performance Evaluation of Dynamic Voltage Restorer Based on Transformer-based Z Source Inverter

10.11591/ijpeds.v8.i3.pp1101-1108
Deshpande Chinmay V. , Deshpande Chaitanya V. , Deokar Sanjay A.
In this paper, latest technology is introduced in substitution to conventional voltage and current type inverter with Transformer based impedance (Z) source inverter in voltage sag assessment and mitigation and compared with voltage source inverter based dynamic voltage restorer. Transformer based impedance source inverters (Trans-Z source inverters) are newly proposed inverters that can be used to overcome downside of voltage source inverter, current source inverter and impedance source (Z-source) inverter. T-Z source inverter consists of transformer with high frequency and low leakage inductance along with low reactive component compared with conventional Z source inverter. In case of T-Z source inverter, voltage stress throughout Z-source capacitor is reduced along with inrush current limitation at startup. This paper presents modeling of T-Z source inverter based dynamic voltage restorer using MATLAB/SIMULINK software along with its THD analysis which is compared with VSI based dynamic voltage restorer. Here abc to dq0 control algorithm is employed. The control technique which is employed for simulation shows excellent results for voltage sag and swell compensation.
Volume: 8
Issue: 3
Page: 1101-1108
Publish at: 2017-09-01

A Fuzzy PID Controller for Induction Heating Systems with LLC Voltage Source Inverter

10.11591/ijpeds.v8.i3.pp1168-1175
Arijit Chakrabarti , Pradip Kumar Sadhu , Avijit Chakraborty , Palash Pal
The Proportional-Integral-Derivative (PID) controller is the most popular control strategy in the process industry. The popularity can be attributed to its simplicity, better control performance and excellent robustness to uncertainties that is found through the research work on such controllers so far. This paper presents the design and tuning of a PID controller using Fuzzy logic for industrial induction heating systems with LLC voltage source inverter for controlling the induction heating power. The paper also compares the performance of the Fuzzy PID controller with that of a conventional PID controller for the same system. The system and the controllers are simulated in MATLAB/SIMULINK. The results show the effectiveness and superiority of the proposed Fuzzy PID controller.
Volume: 8
Issue: 3
Page: 1168-1175
Publish at: 2017-09-01

Voltage Sag Compensation in Fourteen Bus System during Line Interruption Using Interline Dynamic Voltage Restorer

10.11591/ijeecs.v7.i3.pp655-667
Suresh P , Baskaran B
This paper deals with power quality improvement in fourteen bus system (FBS) using IDVR. Investigations were carried out to find the improvement of real and reactive power by employing IDVR during line outage condition. The closed loop responses of PI, PID and FL controlled systems are modelled and simulated using simulink and the results are obtained. Load flow studies were conducted for healthy system, FBS with line outage and FBS with line outage with inclusion of IDVR. The simulation studies indicate that, the voltage under line outage condition with IDVR is almost equal to the voltage under healthy condition. The Responses of closed loop systems with PI, PID and FLC are compared and the analysis shows the improvement in dynamic response in terms of settling time and steady state error. The advantages of proposed system is improved voltage stability, flexibility to control real and reactive powers and concluded that FLC based IDVR system had better time response. The prototype for four bus system with IDVR is modelled and the results are obtained.
Volume: 7
Issue: 3
Page: 655-667
Publish at: 2017-09-01

The Coordinated Control of FACTS and HVDC Using H-infinity Robust Method to Stabilize the Inter-regional Oscillations in Power Systems

10.11591/ijpeds.v8.i3.pp1274-1284
Mahmoud Zadehbagheri , Mehrdad Pishavaie , Rahim Ildarabadi , Tole Sutikno
This paper presents a new resistant control method for synchronized connection of FACTS & HVDC aiming to get the stability of small signal of the power system. The efficiency of the proposed controller on the stability of the entire tested system has been proved and also guarantees the stability against uncertainty and turmoil. Applying this method can also reduce the difficulties of oscillations between adjacent areas to generator without strengthening transmission lines or costly constraints on system performance. The simulation results on a system of 68 buses, 16 generators and 5 areas show that the mentioned controller with embedded HVDC and SVC has significant performance despite changes in parameters.
Volume: 8
Issue: 3
Page: 1274-1284
Publish at: 2017-09-01

Crowd Anomaly Detection Using Motion Based Spatio-Temporal Feature Analysis

10.11591/ijeecs.v7.i3.pp737-747
Basavaraj G M , Ashok Kusagur
Recently, the demand for surveillance system is increasing in real time application to enhance the security system. These surveillance systems are mainly used in crowded places such as shopping malls, sports stadium etc. In order to support enhance the security system, crowd behavior analysis has been proven a significant technique which is used for crowd monitoring, visual surveillance etc. For crowd behavior analysis, motion analysis is a crucial task which can be achieved with the help of trajectories and tracking of objects. Various approaches have been proposed for crowd behavior analysis which has limitation for densely crowded scenarios, a new object entering the scene etc. In this work, we propose a new approach for abnormal crowd behavior detection. Proposed approach is a motion based spatio-temporal feature analysis technique which is capable of obtaining trajectories of each detected object.  We also present a technique to carry out the evaluation of individual object and group of objects by considering relational descriptors based on their environmental context. Finally, a classification is carried out for detection of abnormal or normal crowd behavior by following patch based process. In the results, we have reported that proposed model is able to achieve better performance when compared to existing techniques in terms of classification accuracy, true positive rate, and false positive rate.
Volume: 7
Issue: 3
Page: 737-747
Publish at: 2017-09-01
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