i-manager's Journal on Electronics Engineering: January 2013

Tuesday, 29 January 2013

Area Efficient Architecture and Algorithm for Evaluation of Arithmetic Expressions

Vol. 2 No. 1
Year: 2011

Issue: September-November

Title: Area Efficient Architecture and Algorithm for Evaluation of Arithmetic Expressions

Author Name: V. Saravanan, M. Vadivel

Synopsis:

This paper presents an algorithm and architecture that facilitate the area-efficient evaluation of arithmetic expressions using deeply pipelined floating-point cores. Due to technological advances, it has become possible to implement? oating point cores on FPGAs in an effort to provide hardware acceleration for the myriad applications that require high performance Voating-point arithmetic. However, in order to achieve a high clock rate, these? oating- point cores must be deeply pipelined. Due to this deep pipelining and the complexity of ? oating-point arithmetic, ?oating-point cores use a great deal of the FPGA’s area. It is thus important to use as few ? oating-point cores in architecture as possible. However, the deep pipelining makes it difficult to reuse the same ? oating-point core for a series of ?oating-point computations that are dependent upon one another. Our Results show the correctness of the algorithm and that the performance achieved is far superior to that of other techniques. Beyond area efficiency, this design has several benefits, including high throughput and a low memory space requirement. Because it only needs to receive one input per clock cycle, it also has a low I/O bandwidth requirement. Because of the low area and the low bandwidth requirement, it is possible to implement multiple copies of the architecture in a single design

Design of Wireless Sensor Network for Tactical Military Application

Vol. 2 No. 1
Year: 2011

Issue: September-November

Title: Design of Wireless Sensor Network for Tactical Military Application

Author Name: Nagavignesh Manoharan

Synopsis:

Today's military voice radio systems were not designed to provide the bandwidth required by today’s multimedia data flows, particularly video. Worldwide, armies are looking for broadband radio access solutions to their tactical needs, and are testing Commercial-Off-The-Shelf (COTS) solutions such as WiMAX. Wireless Sensor Networks which is a type of wireless network consist of small nodes with capabilities of sensing physical or environmental conditions, processing related data and send information wirelessly. These WSN Dense deployments of disposable and low-cost sensor nodes make WSN concept beneficial for battle fields. In Military Applications, the literature discusses WSNs usage for tracking missiles and other possibilities include using WSNs as a military monitoring network for surveillance purposes to monitor large areas against intruders and send alerts and information about intruders using NS2. Some military applications of WSNs are: Monitoring friendly forces, equipment and ammunition, Battlefield surveillance, Exploration of opposing forces and terrain, Targeting, Battle damage assessment, Nuclear, biological and chemical attack detection.

Local Binary Patterns with ENI features for Images classification and analysis

Vol. 2 No. 1

Year: 2011

Issue: September-November

Title: Local Binary Patterns with ENI features for Images classification and analysis

Author Name: E. Suresh Babu, S. Salma, A. Reshma, Naga Raju C

Synopsis:

This paper proposes a new LBP with ENI approach to extract local image features for the purpose of Images classification. This new LBP method introduces the notion of ENI (the abbreviation for “edge pixels, noisy pixels and interior pixels”) which denotes the number of homogeneous pixels in a local neighborhood, and is significantly different for edge pixels, noisy pixels and interior pixels. We redefine the controlling speed function and the controlling fidelity function to depend on ENI. According to our controlling function, the diffusion and fidelity process at edge pixels, noisy pixels and interior pixels can be selectively carried out. Further, a class of second-order improved, edge-preserving denoising method is applied based on the controlling function in order to deal with random-valued impulse noise reliably. The experimental results on representative image databases show that the proposed method is robust to noise and can achieve significant improvement in terms of the obtained classification accuracy in comparison to the LBP method and it’s extensions.

Computer Modeling and Simulation of Ultrasonic Signal Processing and Measurements

Vol. 2 No. 1

Year: 2011

Issue: September-November

Title: Computer Modeling and Simulation of Ultrasonic Signal Processing and Measurements

Author Name: Yogendra Gandole

Synopsis:

In this paper the system for simulation, measurement and processing in graphical user interface implementation is presented. The received signal from the simulation is compared to that of an actual measurement in the time domain. The comparison of simulated, experimental data clearly shows that acoustic wave propagation can be modelled. The feasibility has been demonstrated in an ultrasound transducer setup for material property investigations. The results of simulation are compared to experimental measurements. Results obtained fit some much with those found in experiment and show the validity of the used model. The simulation tool therefore provides a way to predict the received signal before anything is built. Furthermore, the use of an ultrasonic simulation package allows for the development of the associated electronics to amplify and process the received ultrasonic signals. Such a virtual design and testing procedure not only can save us time and money, but also provide better understanding on design failures and allow us to modify designs more efficiently and economically.

Simulation of 2.4 GHz Low-Power CMOS LC Quadrature Voltage Controlled Oscillator

Vol. 2 No. 1

Year: 2011

Issue: September-November

Title: Simulation of 2.4 GHz Low-Power CMOS LC Quadrature Voltage Controlled Oscillator

Author Name: Sreeja, Radha

Synopsis:

This paper presents the simulation analysis of a 2.4 GHz Quadrature Voltage Controlled Oscillator (QVCO), for low-power, low-voltage applications. Cross coupled LC VCO (Inductor-Capacitor Voltage Controlled Oscillator) topology is utilized to realize QVCO. With the passive coupling achieved from the MOS transistors, power consumption is minimized while maintaining a small chip area. The variable capacitors and the inductors are designed using ANSYS and imported through DAC components in ADS (Advanced Design software). Accurate simulation of the QVCO is performed in the software environments and the results are provided. This QVCO provides quadrature signals at 2.4 GHz, achieves a peak to peak voltage of 0.65 volts with a simulated low power consumption of 5.8 mA from a power supply voltage of 0.6 volts. The simulated QVCO produces frequency tuning from 2.1 GHz to 2.60 GHz (20.83%) with a control voltage varying from 0-0.3 volts. The output power level of the QVCO is -7 dBm, with an improved predicted quality factor of 60 and a phase noise of -134 dBc/Hz, 1MHz far from the carrier frequency.

An IPFC Output Feedback Damping Controller Design Using Particle Swarm Optimization

Vol. 2 No. 1

Year: 2011

Issue: September-November

Title: An IPFC Output Feedback Damping Controller Design Using Particle Swarm Optimization

Author Name: N. Rezaei, Amin , H. A. Shayanfar

Synopsis:

In this paper, in order to investigation the dynamic performance of an Interline Power Flow Controller (IPFC) in enhancing the stability of a power system and in spite of being aware of the strong ability of the Particle Swarm Optimization (PSO) algorithm in finding the global optimum solution of a problem, a novel supplementary controller scheme for the IPFC is considered to be designed. With due attention to the simplicity and availability of the decentralized output feedback control methodology, it is take into account to be optimally designed using the PSO algorithm. For this purpose, the linearized Heffron-Phillips model of a Single-Machine Infinite Bus (SMIB) system is established and the Integral of Time multiplied Absolute value of Error (ITAE) is applied as an objective function to design an output feedback controller in order to evaluate the potential of various IPFC control signals upon the power system's different operating conditions. The results in time-domain simulation analysis reveal that the designed PSO based IPFC controller tuned by the proposed objective function has an excellent capability in damping power system low frequency oscillations and enhance greatly the dynamic stability of the power systems. Moreover, through analyzing some performance indices, it is obvious that the m1 (magnitude of injected voltage) based controller is superior to the other based controller.

Design Enhancement of Combinational Neural Networks using HDL based FPGA Framework for Pattern Recognition

Vol. 2 No. 1

Year: 2011

Issue: September-November

Title: Design Enhancement of Combinational Neural Networks using HDL based FPGA Framework for Pattern Recognition

Author Name: priyanka mekala, Jeffrey Fan

Synopsis:

The fast emerging highly-integrated multimedia devices require complex video/image processing tasks leading to a very challenging design process; as it demands more efficient and high processing systems. Neural networks are used in many of these imaging applications to represent the complex input-output relationships. Software implementation of these networks attain accuracy with tradeoffs between processing performance (to achieve specified frame rates, working on large image data sets), power and cost constraints. The current trends involve conventional processor being replaced by the Field programmable gate array (FPGA) systems due to their high performance when processing huge amount of data. The goal is to design the Combinational Neural Networks (CNN) for pattern recognition using an FPGA based platform for accelerated performance. The enhancement in speed and computation from the hardware is being compared to the software (using MATLAB) model. The employment of HDL on the FPGA enables operations to be performed in parallel. Thus allowing the exploitation of the vast parallelism found in many real-world applications such as in robotics, controller free gaming and sign/gesture recognition. As a validation of the CNN hardware model a case study in pattern recognition is being explored and implemented on Xilinx Spartan 3E FPGA board. To measure the quality of learning in the trained network mean squared error is used. The processing performance of this non-linear stochastic tool is determined by comparing the HDL (parallel model) simulations with the MATLAB design (sequential model). The gain in training time and memory used for processing is also derived.

Fpga Based Improved Stator Flux and Torque Estimators For Direct Torque Control Of Induction Motor Drive System

Year: 2011

Issue: September-November

Title: Fpga Based Improved Stator Flux and Torque Estimators For Direct Torque Control Of Induction Motor Drive System

Author Name: R. Rajendran, N. Devarajan

Synopsis:

This paper presents an improved FPGA based stator flux and torque estimators for direct torque control of induction motor drive. In voltage model -based of stator flux estimation, a low pass (LP) filter is normally used instead of a pure integrator to avoid integration drift problem due to DC off-set, noise and measurement error present in the back electromotive force (emf).In steady state condition, the LP filter estimator will degrade the performance and efficiency of the induction motor drive system since it introduced magnitude and phase errors. A simple method is proposed to improve the steady state performances of the drive system. MATLAB/SIMULINK and Xilinx System Generator tools are used to model and view the functionality of the proposed system.

Monday, 28 January 2013

Semiconducting - Carbon Nanotube Field Effect Transistor Based Logic Gates

Vol.1 No. 4
Year: 2011

Issue: June-August

Title: Semiconducting - Carbon Nanotube Field Effect Transistor Based Logic Gates

Author Name: V. Saravanan, V. Kannan

Synopsis:

Carbon Nanotube Field Effect Transistors (CNTFET) are new nano-scaled devices for the digital circuits. In MOSFET based digital circuits when the channel length is much smaller than a micrometre is a challenge, and creates the problems in device fabrication, which limits advancing the integrated circuit. Small size of the MOSFET, below a few tens of nanometres creates the low Trans-conductance, gate oxide leakage, low ON-current, Mobility degradation and increased delay. Problems observed in the MOSFET, when size is reduced are avoided in CNTFET, since in case of CNTFET, carbon nanotube is used as channel and high-k material is used as gate dielectric. In this paper, we present the simulation results of semi-conducting Carbon Nanotube Field Effect Transistors based logic gates using HSPICE.

An Approach for Real Time Audio Watermarking Using Wavetable Alternation in Digital Instruments

Vol.1 No. 4
Year: 2011

Issue: June-August

Title: An Approach for Real Time Audio Watermarking Using Wavetable Alternation in Digital Instruments

Author Name: M. Vadivel, V. Saravanan

Synopsis:

Musical performance with digital instruments has become a common practice today and many digital instruments came to be used in Desk Top Music, live performance, etc. However, the spread of digital contents causes the problem of illegal duplication and distribution, so that digital watermark has recently attracted much attention as a technology to solve this problem. In this project we focus on a sound synthesized process in digital instruments and propose a real-time watermark method. Certain watermarks are embedded in wavetables that include in our digital instruments and the insertion of secret messages is actualized with wave table switching additionally embedded watermarks can be extracted from the acoustic signal. The proposed method is able to achieve a real-time watermark.

In-Vehicle Real-Time Human Emotion Recognition through Visual, Thermal and Heart Rate Monitoring Using Parallel CPU and GPU Techniques for Driver Safety

Vol.1 No. 4
Year: 2011

Issue: June-August

Title: In-Vehicle Real-Time Human Emotion Recognition through Visual, Thermal and Heart Rate Monitoring Using Parallel CPU and GPU Techniques for Driver Safety

Author Name: Goh Chia Chieh, Dino Isa

Synopsis:

Real-Time Human Emotion Recognition Is A Challenging Task. Speed And Accuracy Has Always Been The Main Concern For Human Emotion Analysis. Such System Poses An Even Greater Challenge For Implementation In A Limited Space Of A Constantly Mobile Environment, For Example, In A Moving Vehicle. On Top Of That, Power Consumption Is Another Major Issue To Be Considered. This Paper Proposes An Efficient Method On How Such System Can Be Implemented In The Mobile Environment By Utilizing Parallel Cpu And Gpu To Achieve Real-Time Emotion Analysis And Judgment. Using Low Power Consumption Single Board Computer (Sbc) With A Dual Graphic Card Installed, The Task Will Be Split Into Multiple Threads Which Process Visual, Thermal And Heart Rate Emotion Monitoring System Simultaneously. Thus, Better Accuracy And Optimal Performance Is Attained Through Parallel Gpu And Cpu Processing. Handling Enormous Of Data Through Parallel Processing Requires Expertise In Combining The Cpu And Gpu Tasks Together By Merging Different Kinds Of Data Competently.

Study of the Voltage Stability in a Multibus Power Network Using Ai Technique

Vol.1 No. 4

Year: 2011

Issue: June-August

Title: Study of the Voltage Stability in a Multibus Power Network Using Ai Technique

Author Name: G Prasad, D. Vijay Kumar, M. Ebraheem, A. Muneiah

Synopsis:

Voltage instability is a state of power system encountering an unacceptable voltage level. This paper describes the expressions of Fast Voltage Stability Index (FVSI) and Line Quality Factor (LQF), which may be considered as indication of voltage collapse under constrained condition of an interconnected power system. Artificial Neural Network Technique has been applied to identify the voltage collapse condition. The novelty of this method is that, once the ANN model of the system is developed, through on line checking of the load of the weak bus, the present method can immediately calculate the FVSI and LQF without going through the complex classical calculations. The developed ANN technique has been tested in IEEE 30 bus test system and is found to be in excellent agreement with the result obtained by classical method.

Empirical mode decomposition of Atmospheric radar signals

Vol.1 No. 4

Year: 2011

Issue: June-August

Title: Empirical mode decomposition of Atmospheric radar signals

Author Name: Padmaja Nimmagadda, S. Varadarajan, G. Madhavi Latha

Synopsis:

In this paper, comparison study of wavelet transforms and Empirical mode decomposition (EMD) was performed for two sets of atmospheric radar data. Wavelets and EMD has been applied to the time series data obtained from the mesosphere-stratosphere-troposphere (MST) region near Gadanki, Tirupati. Wavelet analysis is one of the most important methods for removing noise and extracting signal from any data. The de-noising application of the wavelets has been used in spectrum cleaning of the atmospheric signals. EMD is a numerical sifting process to decompose a signal into its fundamental intrinsic oscillatory modes, namely intrinsic mode functions (IMFs). A series of IMFs can be obtained after the application of EMD. The Algorithm is developed and tested using Matlab. Analysis has brought out some of the characteristic features such as Doppler width, SNR of the atmospheric signals. The results showed that the proposed algorithm is efficient for dealing non-linear and non- stationary signals contaminated with noise. SNR using wavelets and EMD has been compared and plotted for validation of the proposed algorithm. EMD is found to be effective in removing the noise embedded in radar echoes.

Non-linear Analysis of the Cardiovascular System (Vanderpol oscillator) using Simulink

Vol.1 No. 4
Year: 2011

Issue: June-August

Title: Non-linear Analysis of the Cardiovascular System (Vanderpol oscillator) using Simulink

Author Name: C. Muni Saraswathi, Anu Radha B, K. Babulu

Synopsis:

The Heart Is The Center Of The Cardiovascular System. Whereas, The Term Cardio Refers To The Heart, The Term Vascular Refers To Blood Vessels. The Heart Acts As A Pump, And Maintains A Constant Circulation Of Blood Throughout The Body. As Blood Flows Through Body Tissues, Nutrients And Oxygen Move From The Blood In To Interstitial Fluid And Then Into Cells. At The Same Time The Blood Picks Up Wastes, Carbondioxide, And Heat. Even At Rest, Our Heart Pumps 30 Times Its Own Weight Each Minute, About 5 Liters To The Lungs And The Same Volume To The Rest Of The Body. The Physiological Oscillators Produce Oscillations, In The Form Of Stable, Closed Trajectory Called A Limit Cycle. These Oscillations Exhibit The Phenomenon Of Frequency Entrainment Or Phase Locking. These Are Analyzed By Presenting Vanderpol Oscillator. Vanderpol Oscillator Is A Non-Linear Oscillator. In The Non-Limit Cycle Oscillator, External Disturbance Move The Phase Trajectory To Different Orbit Around The Centre And Will Not Come To Original Point, Where As In Limit Cycle Oscillator, The Phase Trajectory Returns To Its Original Location. When Vander Pol Oscillator Is Driven By The External Frequency, Which Is Different With Natural Frequency Of The Oscillator, Then The Resultant Output Is Mixture Of Components That Result From The Interaction Of The Driving Periodicity On Natural Oscillations. If The External Frequency Is Equal To Natural Frequency Of Vendor Pol Oscillator, Then Nonlinear System Will Adopt The External Frequency. The Time Courses Of Oscillatory Activity Of Heart And Phase Trajectories Are Generated By Vanderpol Model By Using The Simulink. The Response Of Vander Pol Oscillator For Various External Frequencies Is Also Obtained.

A New Accordion Based Video Compression Method

Vol.1 No. 4

Year: 2011

Issue: June-August

Title: A New Accordion Based Video Compression Method

Author Name: Jaya Krishna Sunkara, kuruma Purnima , Navaneetha Sagari , Rama Subbareddy

Synopsis:

Usually, a video signal has high temporal redundancies due to the high correlation between successive frames. This redundancy has not been exploited enough by current video compression techniques. In this pape44grr, we present a new video compression technique which tends to hard exploit the pertinent temporal redundancy in the video to improve processing efficiency with minimum processing complexity. It includes 3D to 2D transformation of the video that allows exploring the temporal redundancy of the video using 2D transforms and avoiding the computationally demanding motion compensation step. This transformation converts the spatial and temporal correlation of the video signal into a high spatial correlation. Indeed, this technique transforms each group of pictures into one picture eventually with high spatial correlation. Thus, the De-correlation of the resulting pictures by the DCT makes efficient energy compaction, and therefore produces a high video compression ratio. Many experimental tests had been conducted to prove the technique efficiency especially in high bit rate and with slow motion video.

Xilinx System Generator Based Modeling and Simulation of SVPWM

Vol.1 No. 4

Year: 2011

Issue: June-August

Title: Xilinx System Generator Based Modeling and Simulation of SVPWM

Author Name: R. Rajendran, N. Devarajan

Synopsis:

This paper is about modeling and simulation of Space Vector Pulse Width Modulation (SVPWM) scheme for a three phase Voltage Source Inverter (VSI). The model was implemented using Xilinx System Generator and MATLAB/Simulink blockset. The most widely used schemes for a three phase VSI are carrier based Sinusoidal PWM (SPWM) and SVPWM. There is an increasing trend of using SVPWM because of their easier digital realization and better DC bus utilization. The novelty of the paper relies on the proposal of the flexible and new model of SVPWM.

Efficient Image Compression Algorithms Using Evolved Wavelets

Vol.1 No. 4

Year: 2011

Issue: June-August

Title: Efficient Image Compression Algorithms Using Evolved Wavelets

Author Name: Chenchu Krishnaiah G, T. Jaya Chandra Prasad, Giri Prasad M.N

Synopsis:

The 9/7 and 5/3 lifting based wavelet filters are widely used in different image compression schemes, such as JPEG 2000 image compression standard. The performance of a hardware implementation of the 9/7 and 5/3 filter banks depends on the accuracy with which filter coefficients are represented. In this paper an attempt has been made to study the performance of 9/7 and 5/3 wavelets on photographic images (monochrome and color) and estimated Peak Signal to Noise Ratio (PSNR), Compression Ratio (CR), Mean Square Error (MSE), Encoding Time, Decoding Time, Transforming Time or Decomposition Time…etc. This study shows that the 5/3 wavelet transform outperform the 9/7 wavelet transform.

A Comparison of Different Image Enhancement Techniques

Vol.1 No. 3

Year: 2011

Issue: March-May

Title: A Comparison of Different Image Enhancement Techniques

Author Name: Anu Radha B, Purushotham Prasad Kalisetti, P.S. Karthik , S. Damodar , S. Srilekha

Synopsis:

Images are captured at low contrast in a number of different scenarios. Image enhancement algorithms are used in a variety of image processing applications, primarily to improve or enhance the visual quality of an image by accentuating certain features. Image processing modifies pictures to improve them (enhancement, restoration) to prepare suitable images for various applications from raw unprocessed images.Image enhancement improves the quality (clarity) of images for human viewing. Increasing contrast, and revealing details are examples of enhancement operations whereas removing blurring and noise comes under the category Image restoration. In this paper comparison ofdifferent algorithms are used for image enhancement (histogram equalization, adaptive histogram equalization, continuous histogram equalization, decorrelation stretching, median filtering, negative image and intensity adjustment). In this decorrelation stretching, median filtering and intensity adjustment together gives the best method for enhancing because it not only increases the intensity values but also removes salt-and-pepper noise.

A Novel Method for Harmonic Elimination

Vol.1 No. 3

Year: 2011

Issue: March-May

Title: A Novel Method for Harmonic Elimination

Author Name: Sandeep Rode, Siddharth Ladhake

Synopsis:

A new filter strategy for harmonic elimination is introduced in this paper. The proposed filter eliminate undesirable harmonic from periodic signal. The proposed approach eliminates all harmonics component from periodic signal and it requires only knowledge of the frequency of the fundamental component. Adaptation process adjusts weights to exactly match amplitude and phase of fundamental frequency component and the outputs of the filter is a harmonics replica and are subtracted from the original composite waveform to eliminate them. The bipolar waveforms are roughly analyzed. The simulation results show that the method can effectively eliminate undesirable harmonics and result in low(less than one percentage) total harmonic distortion (THD).

Performance Analysis of Fair Cac Scheme in Wireless Multimedia Communication Network

Vol.1 No. 3

Year: 2011

Issue: March-May

Title: Performance Analysis of Fair Cac Scheme in Wireless Multimedia Communication Network

Author Name: V. Saravanan, M. Vadivel

Synopsis:

Modern wireless network is expected to support multimedia traffic and to provide the very high Quality of service (Qos) in multimedia network, how to ensure the very high Quality of service in multimedia network is the emerging technology. Call Admission Control (CAC) plays an important role in the QoS guarantee of multimedia network. Many CAC schemes aim to satisfying QoS requirement and upgrading network utilization, but they ignore the fairness principle in network. Directly and simple using these CAC schemes, it will appear the phenomenon of unbalance that the narrow band calls block the broad band calls. So, this paper proposes a fair call admission control scheme by introducing call hold control. Numerical results show that the new scheme not only realizes the balancing accessing machinery to all calls, but also decrease CBP (Call Block Probability) and improves network utilization.

Guided and Leaky Modes of a Multilayer Planar Slab Waveguide

Vol.1 No. 3

Year: 2011

Issue: March-May

Title: Guided and Leaky Modes of a Multilayer Planar Slab Waveguide

Author Name: S. K. Raghuwanshi, V. Kumar, Radha Raman Pandey

Synopsis:

Guided/Radiation modes of a multilayer symmetric slab waveguide are treated in detail. Since the slab is assumed to be infinite extended in the plane, all field quantities are considered to be independent of. The analysis is based on modal expansion formulation and the modes can be classified as TE and TM as well as even and odd ones. Applying the boundary conditions at the interfaces, the expansion coefficients of the field components are easily calculated. In addition, the normalization factors, and the orthogonal ties properties are determined by deriving appropriate integrals over the cross-section of the waveguide. Finally the result is validated with some examples.

Low Complexity Multi User Detection Using Decision Feed Back Equalizer

Vol.1 No. 3

Year: 2011

Issue: March-May

Title: Low Complexity Multi User Detection Using Decision Feed Back Equalizer

Author Name: Ravindrababu, P. Venumadhav , Krishnarao

Synopsis:

This paper implements the transmission and reception of different number of user signals modulated by Binary Phase Shift Keying (BPSK) using CDMA. The transmitting signal goes through the communication channel. It is a medium that is between the transmitter and receiver and is modeled by the impulse response of multi path fading channel and it consists of additive White Gaussian Noise that is AWGN channel. The Decision Feed Back Equalizer (DFE) used to identify different user signals and then demodulates them to get all different user signals. Simulations shows the Decision feedback equalizers (DFE), compared with the Linear equalizers is simulated using MATLAB.

Anfis Controlled Solar Pumping System

Vol.1 No. 3

Year: 2011

Issue: March-May

Title: Anfis Controlled Solar Pumping System

Author Name: Farhat Mayssa, Sbita Lassaad

Synopsis:

This paper deals with a Photovoltaic (PV) controlled pumping system. The topology is a sunshine PV pumping system which consists of a PV generator (PVG), a DC_DC power electronics converter and a DC motor coupled to a positive displacement pump. The proposed PV pumping system works without storage batteries. Water tank can be used as a storage one such as for irrigation use. The proposed system topology consists of a simple electronic design which is suitable for remote areas. The overall proposed algorithm is built around a Neuro-fuzzy Inference System (ANFIS) DC-DC converter controller yielding to a high efficiency solar pumping system. The purpose of this work is to present a new ANFIS-PV which is designed as a combination of the concepts incorporating Sugeno fuzzy model and neural networks. This last uses directly the PVG current and power as the MPPT controller inputs. Matlab Simulation results are selected and presented to highlight improvement for the overall proposed pumping scheme.