International Journal of Innovative Research in Electrical, Electronics, Instrumentation and Control EngineeringA monthly Peer-reviewed & Refereed journal
IJIREEICE meets the suggestive parameters outlined in the latest University Grants Commission (UGC) for peer-reviewed journals, ensuring high standards of research integrity, publication ethics, and academic excellence.
Effects of Ultraviolet Radiations and Sand Storms on the Flashover Voltages of Silicone Rubber Cable Terminations
M. Annaka, L. S. Nasrat, S. M. El-Khodary, S. El-Debeiky
DOI: 10.17148/IJIREEICE.2016.4101
Abstract: This paper presents an experimental work which was carried out to examine the electrical performance of heat shrinkable cable terminations under desert polluted conditions. The ac (50 Hz) flashover voltage (kV) has been evaluated for heat shrinkable cable terminations under simulated ultraviolet (UV) radiation of different durations and under different doses of artificial sand storm.
Implementation of MIN/MAX Functions using Operational Transconductance Amplifier
Shruti Jain
DOI: 10.17148/IJIREEICE.2016.4102
Abstract: This paper shows the different steps to realize and simulate the MIN/MAX fuzzy operators using operational transconductance amplifier, operational amplifier and 2 stage CMOS operational amplifier using SPICE. This paper also shows the calculation of different parameters like slew rate, power dissi, CMRR and gain for all the fuzzy operators. Later comparison of all parameters was discussed. The results with OTA comes out to be the best as it uses less voltage, more slew rate for high speed operations.
Optimal Distributed Generators and Capacitor Sitting and Sizing in Distribution Systems with Modified Particle Swarm Optimization
G. Balakrishna, Ch. Sai Babu
DOI: 10.17148/IJIREEICE.2016.4103
Abstract: To ensure the good quality of power in electrical distribution systems, voltages at the different nodes should be within reasonable limits. Shunt capacitors banks installed along with the distribution feeders can supply part of the reactive power required by the inductive loads and hence reduces the voltage drops. Further distributed generators (DGs) also improve the voltage profile as well as provide the local real power generation. The improvement in voltage profile in the system is very much sensitive to the locations and sizes of the shunt capacitor banks as well as distributed generators. In this work, the optimal sitting and sizing of capacitors and DG units are found by the proposed algorithm based on modified particle swarm optimization (MPSO). Loss sensitive factors are used to determine the optimal location of DG units and Shunt capacitor units and their size is obtained by M PSO. The proposed algorithm has been solved by considering multiple objective functions viz., minimization of power loss, minimization of cost function and minimization of deviation of bus voltage. The proposed algorithm has been tested on two test systems i.e., IEEE-33 and IEEE-69 bus systems and results are presented and analyzed.
Keywords: Distributed Generators (DGs), Shunt capacitors, Multi objective function, and Modified particle swarm optimization.
Secure Communication Using 4-D Arrays for Cognitive Radio
K. Vara Prasad, P. Satyanarayana, A. Kusuma mounica
DOI: 10.17148/IJIREEICE.2016.4104
Abstract: In recent days, the growing request of information and mobility has an unavoidable impact on efficient utilization of wireless systems and services with a consequent congestion of wireless medium. As a consequence, issues regarding an efficient and smart utilization of limited radio resource have been raised. To address these problems, a proposed method is the use of antenna systems that are able to first sense the external EM environment and then reconfigure the radiation characteristics of the generated field to guarantee a reliable communication by using time modulation in 4-D arrays. Harmonic radiations having different spatial distribution and shapes can be synthesized in order to receive signals arriving on the antenna from different directions. The capability to generate a field having different frequencies in spatial distribution implies that signal transmitted by time modulated 4-D arrays is direction dependent. Such a feature is exploited in this paper to implement a secure communication scheme directly at the physical layer.
Greenhouse Wireless Network Monitoring and Management Using IoT
Tejaswita Jagdale, Dr. M.B. Mali
DOI: 10.17148/IJIREEICE.2016.4105
Abstract: Indian agriculture is the major private sector enterprise in the country so the Indiaβs economic security depends on agriculture sector as of now and in near future. Monitoring and control of greenhouse environment plays an important role in crop production and this may results in maximum photosynthetic activity. This project consists of design and implementation of a Wireless Sensor Network that can monitor the temperature, humidity, soil moisture, incident light intensity in the greenhouse filed area. So farmers can recognize the environmental conditions and implement various methods to increase the greenhouse crop production. The system is integrated with particular sensors, Microcontroller and radio frequency modules forms sensor node. All monitored parameters that sensed by various sensors are transmitted through a wireless RF link XBee to MCU which is acting coordinator node and designed to take corrective action once exceed the threshold parameters. There is interface between MCU and PC so the data at MCU can be maintained in VB for further process. As well as interface between PC to GPRS shield for internet connectivity to avail IoT. By using Internet of things the data can be access from anywhere and this is most advantageous among the existing greenhouse system.
High Speed Area Efficient FFT using Modified SQRT CSLA and 5:3 & 9:4 Compressor
K.Pitambar Patra, Sambit Patnaik, Swapna Subudhiray, Janmejaya Samal
DOI: 10.17148/IJIREEICE.2016.4106
Abstract: While designing fast fourier transform (FFT) cores, due to the use of multiplexers, memory, or ROMs, there is a substantial increase in power consumption and area. In order to increase speed and throughput, folding and pipelining methods have been approached by various existing designs. But the prime disadvantage of those architectures is the use of multipliers for twiddle multiplications. This present work has proposed fast fourier transform using compressors based multiplier. Both parallel and pipelining techniques have also been used in the proposed designs. Carry Select adder is known to be the fastest adder among the Conventional adder structures. This work uses an efficient Carry select adder by sharing the binary to excess-1 converter (BEC) term. After a logic simplification, we only need one XOR gate, one AND gate and one inverter gate for carry and summation operation. Through the multiplexer, we can select the correct output according to the logic states of the carry in signal. These all design and experiments were carried out on a Xilinx 14.1i Spartan 3e device family.
A review on various Medical Image Compression methods
Ms. Shrutika S. Sawant, Dr. N. V. Dharwadkar, Mr. Subodh. S. Ingaleshwar
DOI: 10.17148/IJIREEICE.2016.4107
Abstract: This review paper is based on medical image compression using various image compression techniques. In this paper comparative analysis of different compression techniques and their applications in the rising fields of medical science such as e-health, telemedicine, teleradiology has been carried out. There has been abundant research work carried on medical image compression. Even though, the medical image compression has a intense scope in future but it also has lot of difficulties and challenges to achieve requirements of the medical field.
Keywords: Medical image compression, lossy compression, 3D images, SPHIT.
Abstract: Hydro power or water power is power derived from the energy of falling water or fast running water, which may be harnessed for useful purposes. In the late 19th century, hydropower became a source for generating electricity. Hydropower is the most important and widely used renewable source of power. Hydropower represents about 16% of total electricity production. The hydro power reserves of India have been estimated by the Central Water and Power Commission. It is estimated that there is potential for installing 411180 MW. In hydro power plants energy of water is utilised to move the turbines which in turn run the electric generators. The energy of water utilised for power generation may be kinetic or potential. Earlier hydroelectric plants have been used as exclusive source of power, but the trend is towards use of hydropower in an interconnected system with thermal stations.
Simulation of Incremental Conductance MPPT Algorithm for PV Systems using LabVIEW
P Srinivas, K Vijaya Lakshmi, Ch Ramesh
DOI: 10.17148/IJIREEICE.2016.4109
Abstract: Among all types of renewable energies, solar energy has the widespread utilization. This popularity is achieved for its sustainability, cleanliness, ease of maintenance and absolute zero noise characteristics. The global economic convenience of a PV system depends on the cost and the energy conversion efficiency. It is necessary to reduce the cost and increase the efficiency to make solar energy effectively. Thus, MPPT algorithm is necessary in order to track the optimum operating point or maximum power that can be extracted from the PV array. In this paper, Incremental Conductance MPPT algorithm is implemented using LabVIEW (Laboratory Virtual Instrument Engineering Workbench) and its performance is observed.
Study and Implementation of Autonomous Water Desalination Unit Driven by Solar Energy
Fahad Albukhari
DOI: 10.17148/IJIREEICE.2016.4110
Abstract: In this paper autonomous water desalination unit driven by solar energy was discussed in details. Photovoltaic method by using semiconductors. The algorithm changes the duty cycle of the dc/dc converter to maximum the power output of the module and make it operate at the peak power point of the module. a class of switching-mode power supply (SMPS) containing at least two semiconductor switches and at least one energy storage element.
Parallel Stream Based Processing Model for WS-Security
Nidhi Arora, Savita Kolhe, Sanjay Tanwani
DOI: 10.17148/IJIREEICE.2016.4111
Abstract: Web Services are widely adapted for integrating heterogeneous information systems in a cost-efficient way. Simple Object Access Protocol (SOAP) messages are standard way to exchange the information between web services. Web Services Security (WS-Security) specification is used to secure SOAP messages but adds significant overhead on SOAP message processing. It increases the size of the message on the wire. Also web services are vulnerable to several attacks. Processing efficiency and robustness against certain attacks are important issues of web services security. Schema validation and Hardening are the promising methods to prevent web services from such attacks but have performance bottleneck. A new Parallel Stream based Security Processing model has been developed in order to enhance the performance of WS-Security processing and to secure web services from several attacks. A new methodology is described in the paper in which large SOAP messages are partitioned into schema valid parts. Individual parts are distributed to parallel instances of security processors running on multiple cores in order to reduce the processing load. Experiments are conducted on different sizes of SOAP messages, various security patterns and respective processing time for each is analyzed. Analysis of results reveals that the new parallel stream based security processing model has shown significant improvement in performance as compared to the serial processing.
Keywords: Web Services, WS-Security, SOAP message processing, XML security.
A Fruit Detecting and Grading System Based on Image Processing-Review
Ms. Seema Banot, Dr. P.M. Mahajan
DOI: 10.17148/IJIREEICE.2016.4112
Abstract: This work presents a literature review study for fruit detecting and grading system based on image processing techniques. Different types of algorithms are available to extract feature of fruit characters by capturing the fruit image. With the help of this feature fruit is detected and graded according to quality of fruit this can be done using different types of classifier. The grading system has the advantage of high accuracy, high speed and low cost. It will have a good scene of application in fruit quality detecting and grading areas. This work aimed to study different types of algorithms used for quality grading to developed an algorithm for detecting and sorting of fruit from the acquire image. The feature such as morphological feature is used and colour can be extracted which is further more used to identify class of the fruit using neural network.
Low Frequency Wireless Power Transfer using Optimal Primary Capacitance of Parallel Resonance for Impedance Matching
Artit Rittiplang and Wanchai Pijitrojana
DOI: 10.17148/IJIREEICE.2016.4113
Abstract: Wireless Power Transfer (WPT) has been widely studied for decades by using the Series Resonance (SR). Most of the resonant frequency is in a range of 200 kHz - 13.56 MHz. Additionally, a pure resistive load is commonly adopted for simplifying a design under Impedance Matching (IM) condition. However, there are usual problems presented in the past studies. For example, i) common electrical loads are complex, so the SR structures are difficult to be designed for achieving the IM condition, ii) the resonant frequency in this range causes several problems, e.g. the tissue absorption on humans, electromagnetic interference, etc. In this paper, we propose the method to design the Parallel Resonance (PR) using an optimal primary capacitance for achieving the IM condition, which can operate at a low frequency, as 15 kHz, at a complex load.
Keywords: Low frequency wireless power transfer, low resonant frequency, parallel resonance, impedance matching, wireless power transfer.
Automatic Liquid Mixing and Bottle Filling β A Review
Prof. Swapnil R. Kurkute, Mr. Akshay S. Kulkarni, Mr. Mahesh V. Gare, Mr. Soham S. Mundada
DOI: 10.17148/IJIREEICE.2016.4114
Abstract: In todayβs fast-moving, competitive industrial world, a company must be flexible, cost effective for its survival. In the manufacturing industries there is great demand for industrial automation systems. The industrial automation is necessary in order to streamline operations in terms of acceleration, reliability and system output. In todayβs economical world, automation plays gradually important role. This is the prototype of βAutomatically liquid mixing and bottle filling using PLC & SCADAβ [1]. In our paper βAutomatic Liquid mixing and Bottle Fillingβ is controlled using programmable logic controller (PLC) and SCADA is used for visualizing the system. This paper proposes a mixing and filling management system for industries which is complete application of automation. Itβs controlling and monitoring makes the system easily accessible and alert the operator in the case of any fault or errors. It is one of the major applications of automation in the soft drink and other beverage industries, where a specific amount of liquid has to be filled continuously into the bottles [2]. The main aim of the paper is to plan, develop and test the real time implementation of PLC, SCADA systems for ratio control based liquid mixing and bottle filling.
Temperature Effect of CNTFET under Different Dielectric Materials
Mohammad Nazmus Sakib, Afroza Haque, Marwa Nabi
DOI: 10.17148/IJIREEICE.2016.4115
Abstract: A thorough study of the ballistic effect on the performance of the carbon nanotube field effect transistor has been explored in detail in this paper. The behavior of CNTFETs has been analyzed as a function of temperature by varying the gate dielectric constant and gate oxide thickness. Current ratio with a fixed oxide thickness and diameteris observed under different temperature for different dielectric materials and the ratio is increased while increasing the dielectric constant but the ratio degrades with the increasing temperature for all dielectric materials. On the other hand, current ratio is decreased while increasing oxide thickness for a fixed dielectric material and diameter as a function of temperature. The degradation of current ratio in lower temperature range is noticeable but for higher temperature range the slope of the degradation of current ratio is almost constant. The off state current remains same regardless of varying dielectric constant and oxide thickness and always increases while increasing the temperature. Transconductance remains almost constant as a function of temperature but increases with the increase of dielectric constant for all oxide thickness for a fixed tube diameter. Transconductance slightly decreases with the increasing oxide thickness for all dielectric materials. Effect of tube diameter for the variation of band gap is also investigated which is inverse relationship.
Keywords: Transconductance, Off-state current, Current Ratio, Chiral Indices, Chiral Angle.
Comparison of PCCC Performance in Presence of Mercaptans and DBDS Sulfur in Transformer Oil Using Ο-t-N Technique
L. Sanjeev Kumar, B. Ramachandra, S. Senthil Kumar
DOI: 10.17148/IJIREEICE.2016.4116
Abstract: Paperβoil insulation is widely used in transformers. The reactive sulfur forms copper sulfide and dispersing in oil causes the reduction in insulation of the transformer. It is reported that during life cycle of transformer, paper and pressboard insulation undergoes deterioration mainly because of increase in sulfur content in transformer oil. The types of reactive sulfur that are present in transformer oil are Mercaptans (2-MBT) and di-benzo-di-sulfide (DBDS). The Γ-t-N distribution is a popular choice for PD representation as the discharge magnitude is associated with the state of insulation. Representations based on the charge magnitude are susceptible to influence of the measuring system, discharge and equivalent characteristics. On the other hand, the Γ-t-N representation offers much flexibility hence this method is chosen to compare the performance of PCCC under the influence of different sulfur contamination.
Review on Feature Extraction and Classification of WBC in Bone Marrow for Disease Diagnosis
Shri N. D. Pergad, Dr. S. T. Hamde
DOI: 10.17148/IJIREEICE.2016.4117
Abstract: In this paper, we make a review on different features and classification methods for white blood cells in bone marrow for disease diagnosis. A new set of features based on the wavelet and Radon transform to bone marrow blood cell differential classification solution. The transform based novel features are the coefficient values of decomposition for horizontal, vertical & diagonal factors with two levels. the factors where the coefficient values are of six in numbers the first and second level coefficient method to the classifiers by the desired output using a previous information of the number of coefficients as a samples in each class. Artificial neural networks Levenberg-Marguardt (LM) back propagation algorithm for validation is applied in the experiments. The results are used in various disease diagnoses.
Keywords: review on features, review on classification methods, wavelet transform.
A Novel Fine Trench MOSFET with High Voltage Isolation for Smart Power System
Kumar Arvind, Vijay Sharma, Dr. U.B.S. Chandrawat
DOI: 10.17148/IJIREEICE.2016.4118
Abstract: This paper present a Fine Trench power MOSFET with having low On-state resistance for high voltage applications. Day to day advancement in silicon power MOSFET highly improved performance has been achieved with vertical structure of Trench gate. Recent research in metal oxide semiconductor field effect transistor enables very compact high efficient system design with enhanced power gain for high voltage isolated devices. The proposed novel fine Trench MOSFET is designed with n- epitaxial layer between two Trench gate. The deep Trench high voltage isolated design is simulated with SILVACO TCAD simulator.
Keywords: Fine Trench MOSFET, SILVACO TCAD, Deep Trench Architecture, On-state Resistance.
Performance analysis of Five-Phase and Three-Phase Induction Machines
Loriya Vismay J., Prof. R.A. Patel
DOI: 10.17148/IJIREEICE.2016.4119
Abstract: This paper contains the performance analysis of three phases and five phase induction motor. The mathematical modelling and simulation of Five-phase induction Motor and Three-phase induction Motor is carried out. The simulation results are presented to validate modelling procedure and take a speed and torque waveform of both inductions motor. After that performance analysis of both motors has been discussed. It is concluded that five phase induction motor is more preferred.
Keywords: Three-phase inverter fed Induction Motor drive, Five-phase inverter fed Induction Motor drive, MATLAB.
Abstract: A voltage profile at load busses can be kept with appropriate limits by adequate reactive power support. Reactive power also plays a key role in supporting the real power flow to maintain voltage stability and system reliability. It is difficult for transmission system operator to minimize the cost associated with optimal reactive power dispatch along with technical constraint. In recent years, several evolutionary computing based optimization techniques are proposed and practiced to solve various issues involved in optimal reactive power dispatch problem. The ORPD problem has been solved as a single objective as well as multi-objective optimization problem using various conventional techniques as well as recent techniques including genetic algorithm, artificial bee colony, particle swarm optimization and differential evolution etc. This paper is a attempt to understand various concept involved in reactive power dispatch and to present a different work carried out by the various researchers in this field by using evolutionary computing based techniques.
Design of High Voltage Pulse Generator and Receiver Circuit for Ultrasonic velocity and Absorption Measurements In liquids
Dr.Shaik abdul jaffar, Prof. K. Malakondaiah, Prof. Y.B. Gandole
DOI: 10.17148/IJIREEICE.2016.4121
Abstract: This paper discusses the design and development of a single channel transceiver for broad bandwidth ultrasound applications.. The transceiver has the pulser as transmitter and a broad bandwidth receiver. A high frequency ultrasound transducer is used both for the transmission of ultrasound pulse and for receiving the ultrasound echoes. The pulser circuit is a high voltage, high speed, switching circuit designed for 20 V pulse amplitude and pulse width as low as 10 ns. The preamp is a low noise, wide bandwidth amplifier and the time gain compensation circuit has a low noise figure and a bandwidth of 15 MHz. Custom, miniaturized PCBβs have been fabricated and tested for the R.F. electronics. The performance characteristics of 5 MHz transducers are tested and calibrated.
Abstract: The work presented here consists of detailed understanding of general market, electrical market, need of electricity markets and its objectives. All the entities and its role indulged in the electricity market architecture are also mentioned. It involves detailed classification of electrical market, the role of Independent System Operator which includes its responsibilities, principles, prescriptions and activities thereby. The paper focusses on the Generating Company (GENCO) which expresses the behaviour of genco in pool and bilateral markets. To accomplish the task, some statistical data related to the generating company are being shown. And at last, the load forecasting using Statistical Model based learning method is being carried out for different days. The percentage deviation of Actual drawl and Final schedule is being presented which clearly shows the variation is between 5 to 10 percent.
A Review Paper on Face Detection and Recognition in Video
Vishwanath D. Chavan, Anil A Bharate
DOI: 10.17148/IJIREEICE.2016.4123
Abstract: The intention of this paper is to review various face detection and recognition methods, sort them into different categories and distinguish innovative trends. In this connection the face detection and recognition in video streams is the foremost significant step of information drawing out in many computer vision and image processing applications. Detecting and recognition of face in video stream in generally being a challenging problem, provides an enormous attention for recognition, classification, and activity analysis, making these later steps more efficient. Naturally, assumptions are made to constrain the detection and recognition problem in the perspective of a particular application. In this survey, investigation of many existing schemes in the literature of recent developments and general strategies of all these stages are done and limitations of the various methods and outline promising directions of research are discussed.
Keywords: Adaboost Algorithm, Haar Based Cascade classifier, Locality Preserving Projections.
Abstract: There is lot of methods to avoid fraudulence in voting systems, but we are not able to eradicate it completely. This project will give solutions for the above mentioned problem. Fingerprint is one of the unique identities of a human being which is being used in the aadhar system. By using arduino software and by using image processing we capture the finger print of every individual and the face of the individual is being captured. Face of the person captured is compared to aadhaar details using lab view. In future, it could also be implemented using eye trace which will give more accurate results.
Abstract: Long term load forecasting have important role in generation, transmission, and distribution network planning in a power system. A good forecasting reflects current and future trends, tempered with good judgment. The present paper is devoted to study the long term load forecasting of Amritsar city using fuzzy logic methodology along with various mathematical equations i.e. Straight line, Parabola, Exponential and S-Curve equations. Electric load and population data of Amritsar City for last 18 years (from 1997 to 2014) is taken and load is calculated for next nine years (from 2015 to 2023). To obtain the results from Fuzzy Logic methodology error corrections are applied individually and which type of mathematical equation gives least error for load calculations is also taken into consideration. MATLAB programming is used for all the computational work. The same methodology can also be applied for short term and medium term load forecasting, by doing so load shedding in particular area can be reduced. This study is important for an electric utility so that they have an idea about the maximum required power well in advance so that it can be made available as and when required.
Keywords: Long term load forecasting, DDF(Data Dependent Factor), MDF(Model Dependent Factor), ES(Expert System), Straight line(SL), Parabola(P), Exponential(E), S-curve(SC), Fuzzy logic.
Abstract: This paper presents improved performance of Direct Torque Control (DTC) of induction motor drives. At the time of switching DTC drive gives the high torque ripple. In DTC induction motor drive there are torque and flux ripples because of incorrect voltage vector selection by VSI states is unable to generate the exact voltage value required to make zero both the torque electromagnetic error and the stator flux error. To overcome this problem a Fuzzy Logic Controller is proposed. The fuzzy logic controller is used to reducing the torque and flux ripples and it improve performance DTC especially at low speed.
Performance estimation of Different controller for the Industrial Based Process
H.Kala, P.Sathiya, G.Vijayalakshmi
DOI: 10.17148/IJIREEICE.2016.4127
Abstract: Most of the processes used in the industry are First Order plus Dead Time process. Blending Process is chosen and FOPDT model is designed for the process, Different controller technique is tuned for the given process. The controllers are compared with time domain specification and Performance indices. The optimal controller for the process is chosen with minimum time domain specification and minimum performance indices.
Keywords: FOPDT, Dead-time, Time domain specification, Performance indices.
Abstract: Solar tracking systems that can track the Sun's movement can boost power generation by increasing the surface area of solar panels exposed to sunlight. Using a solar tracker reduces the number of solar panels required to generate the same amount of electrical energy. Solar tracking systems are divided into two types: single-axis solar tracking systems and dual-axis solar tracking systems. Several researchers conducted simulation and experimental work to compare and evaluate the performance of solar tracking systems versus static solar panel systems, as well as the performance of different solar tracking system mechanisms.
Solar energy is a non-traditional energy source. In light of this, a solar panel for electricity generation has been developed. The amount of electricity produced is determined by the amount of sunlight that falls directly on the solar panel. Solar panels are typically stationary. Because of the earth's revolution, the position of the sun changes, and as a result, the solar panel does not always align with the sun, producing less electricity. A solar tracker system can help to solve this problem. The solar tracker automatically adjusts the position of the solar panel and tracks the sun to maximize power output.
Keywords: Solar Tracker, Tracking System, Solar Tracking System Performances
A Simplified Control Algorithm for Series Hybrid Active Power Filter
Sanjaykumar Chandubhai Patel
DOI: 10.17148/IJIREEICE.2016.4129
Abstract: Series Hybrid Active Power Filters (SHAPF) have been the main topic of interest for researchers working in the area of power quality, as it combines best features of active power filters (APF) and passive filters. Moreover it is proved to be a cost-effective solution as compared to standalone active and passive filters. Control strategy is a key part of any APF system which decides the compensating characteristics of the filter. For SHAPF many control algorithms have been proposed, they are mainly based on either detecting source current harmonics or load voltage harmonics. Both these methods require decomposition of voltage or current vectors in active and reactive components corresponding to these harmonics. This paper proposes a simplified method of calculating reference for SHAPF. In proposed method the component of voltage vectors corresponding to different parts of active power are only used for deriving reference voltage. This helps avoiding the reactive power calculation and simplifies the control system to a greater extent. Simulation study of SHAPF is done with proposed method and performance of filter is tested in terms of its current harmonic compensation characteristics.
Keywords: active power filters, hybrid active power filter, passive filter, THD.