i-manager's Journal on Circuits and Systems

Volume 1 Issue 1 December - February 2013 Review Paper A Review on Control strategies for LFC in Deregulated Scenario T. Anilkumar*, N. Venkata ramana** * Associate Professor, EEE Department, ACE Engineering College, Ghatkesar, Hyderabad, AP, India. ** Professor and Head of Deportment, EEE Department, JNTU Mantini, AP, India. Kumar, T. A., and Ramana, N., (2013). A Review On Control Strategies For LFC In Deregulated Scenario.  i-manager’s Journal on Circuits and Systems , 1(1), 27-36.  https://doi.org/10.26634/jcir.1.1.2197 Abstract In power system studies, Load frequency control is an important issue to supply sufficient and reliable electric power with good quality. The main objective of LFC is to maintain load frequency and tie-line power flow within permissible limits by adjusting megawatt output of LFC generators, so as to accommodate fluctuating load demands. This paper presents a brief review of different control techniques to researchers on design...

Volume 1 Issue 1 December - February 2013 Research Paper Power Quality Improvement In Grid Connected Windenergy System Using Statcom S. Rajesh Rajan* Assistant Professor, Lord Jegannath College of Engineering and Technology, Ramanathichanputhur. Rajan, S. R. (2013). Power Quality Improvement In Grid Connected Windenergy System Using STATCOM.  i-manager’s Journal on Circuits and Systems , 1(1), 22-26.  https://doi.org/10.26634/jcir.1.1.2196 Abstract Injection of the wind power into an electric grid affects the power quality. The performance of the wind turbine and thereby power quality are determined on the basis of measurements and the norms followed according to the guideline speci?ed in International Electro-technical Commission standard, IEC-61400.This paper demonstrates the power quality problem due to installation of wind turbine with the grid. In this proposed scheme Static Compensator (STATCOM) is connected at a point of common coupling with a batter...

Volume 1 Issue 1 December - February 2013 Research Paper Reducing Clock Power Wastage By Using Conditional Pulse Enhancement Scheme A. Saisudheer*, V. Muralipraveen** * M.Tech, Department of ECE, Chadalawada Ramanamma Engineering College, Tirupathi, India. ** Assistant Professor, Department of ECE, Chadalawada Ramanamma Engineering College, Tirupathi, India. Saisudheer, A. and Muralipraveen, V. (2013). Reducing Clock Power Wastage By Using Conditional Pulse Enhancement Scheme.  i-manager’s Journal on Circuits and Systems , 1(1), 16-21.  https://doi.org/10.26634/jcir.1.1.2195 Abstract In this paper, a low-power pulse-triggered flip-flop (FF) designed and a simple two-transistor AND gate is designed to reduce the circuit complexity. Second, a conditional pulse-enhancement technique is devised to speed up the discharge along the critical path only when needed. As a result, transistor sizes in delay inverter and pulse-generation circuit can be reduced for pow...

Volume 1 Issue 1 December - February 2013 Research Paper Fuzzy Logiccontrol Of Differential Protection For Large Power Transformer S.Padmini*, Subransu Sekhar Dash**, S. Chandrasekhar***, Priyanka Vedula**** * Assistant Professor, SRM University. ** Professor and Head, Department of EEE, SRM University, Shruti. ***-**** B. Tech Student, SRM University. Padmini, S., Dash, S. S., Chandrasekhar, S. and Vedula, P. (2013). Fuzzy Logiccontrol Of Differential Protection For Large Power Transformer.  i-manager’s Journal on Circuits and Systems , 1(1), 10-15.  https://doi.org/10.26634/jcir.1.1.2194 Abstract Advances Differential prot ecti on system is us e d t o protect most of the power transformers in power systems. The protection system is based on the differential currents/voltages of the primary an d secondary of the transformers under fault conditions and under normal operating conditions. The inrus currents or the magnetizing currents are generated in the...

Volume 1 Issue 1 December - February 2013 Research Paper Wind Generator Allocation in Distribution Systems Considering Uncertainty In Generation And Time Varying Load Profile K. Ravindra*, R. Srinivasa Rao**, SVL Narasimham*** * Assistant Professor, Electrical Engineering Department, Jawaharlal Nehru Technological University, Kakinada, India. ** Associate Professor, Electrical Engineering Department, Jawaharlal Nehru Technological University, Kakinada, India. *** Professor of Computer Science and Engineering, School of IT, Jawaharlal Nehru Technological University, Hyderabad, India. K. Ravindra, R. Srinivasa Rao and SVL Narasimham (2013). Wind Generator Allocation In Distribution Systems Considering Uncertainty In Generation And Time Varying Load Profile.  i-manager’s Journal on Circuits and Systems , 1(1), 1-9.  https://doi.org/10.26634/jcir.1.1.2193 Abstract In this paper, a simultaneous approach to choose optimal number of wind based Distributed Gene...

Volume 1 Issue 2 March - May 2013 Research Paper Performance of Fault Detection And Location Algorithms For Power Transmission Lines Sk.Nazeer*, B.R.K. Varma** * Deportment of Electrical and Electronics Engineering, S.R.K.R Engineering College, Bhimavaram, Andhra Pradesh, India. ** Professor and Head of the Department, Electrical and Electronics Engineering, S.R.K.R Engineering College, Bhimavaram, AP, India. Nazeer, Sk and Varma, B. R. K. (2013). Performance Of Fault Detection And Location Algorithms For Power Transmission Lines.  i-manager’s Journal on Circuits and Systems , 1(2), 28-35.  https://doi.org/10.26634/jcir.1.2.2292 Abstract Any reliable transmission line protection scheme is expected to quickly detect faults and isolate the faulted section immediately. Ability to locate the fault, further helps fast restoration of service in case of permanent faults or identifying the weak spots in the system. This paper explores different fault detection an...

Volume 1 Issue 2 March - May 2013 Research Paper A Complete Analytical Model for Circular Diaphragm Pressure Sensor with Clamped edge Sumit Kumar Jindal*, S. K. Raghuwanshi** * Research Scholar, Department of Electronics Engineering, Indian School of Mines, Dhanbad, Jharkhand, India. ** Assistant Professor, Department of Electronics Engineering, Indian School of Mines, Dhanbad, Jharkhand, India. Jindal, S. K. and Raghuwanshi, S. K. (2013). A Complete Analytical Model For Circular Diaphragm Pressure Sensor With Clamped Edge.  i-manager’s Journal on Circuits and Systems , 1(2), 19-27.  https://doi.org/10.26634/jcir.1.2.2291 Abstract MEMS offer various fabrication process to fabricate diaphragms for various applications such as microphones, capacitive sensors, pressure sensor, micro-pumps etc. The working principle of all the devices is based on the force uniformly applied on the diaphragm and cause the diaphragm to deflect. The parameter optimization of the...

Volume 1 Issue 2 March - May 2013 Research Paper Distributed Static Series Compensator for Improving Distribution Performance Rama Rao PVV*, K. Bhanu Priya** * Professor and Head of EEE Department, Shri Vishnu Engineering College for Women, Bhimavaram. ** M.Tech (PE) Student, Shri Vishnu Engineering College for Women, Bhimavaram. Rao, R, P. V. V. and Priya, K. B. (2013). Distributed Static Series Compensator For Improving Distribution Performance.  i-manager’s Journal on Circuits and Systems , 1(2), 13-18.  https://doi.org/10.26634/jcir.1.2.2290 Abstract This paper proposes a Distributed Static Series Compensator (DSSC) for improving the active power flow in the distribution systems. The DSSC can be operated to control the impedance of the line so as to improve the active power flow by clamped round the existing distribution line. In this paper it is proposed that a distributed approach to power flow control can simultaneously solve some of the most daunt...

Volume 1 Issue 2 March - May 2013 Research Paper Neuro-Wavelet Approach for Transient Current based Transmission line Protection Scheme G.Ravi kumar*, S. Tejasree**, CH.Pavani***, P. Sajith**** * Professor and Head of the Department, Electrical & Electronics Engineering, Vasireddy Venkatadri Institute of Technology, Nambur, Guntur. ** -**** Students, Andhra Loyola Institute of Engineering and Technology, Vijayawada. Kumar, G. R., Tejasree, S., Pavani, CH., and Sajith, P. (2013). Neuro-Wavelet Approach For Transient Current Based Transmission Line Protection Scheme.  i-manager’s Journal on Circuits and Systems , 1(2), 7-12.  https://doi.org/10.26634/jcir.1.2.2289 Abstract This paper presents a wavelet based protection scheme for a single line transmission system is connected to load. A wavelet based multi resolution analysis is used to find the detailed coefficients of the signals which are utilized to calculate fault index. These fault indexes are com...

Volume 1 Issue 2 March - May 2013 Research Paper Neuro-Wavelet Approach for Transient Current based Transmission line Protection Scheme G.Ravi kumar*, S. Tejasree**, CH.Pavani***, P. Sajith**** * Professor and Head of the Department, Electrical & Electronics Engineering, Vasireddy Venkatadri Institute of Technology, Nambur, Guntur. ** -**** Students, Andhra Loyola Institute of Engineering and Technology, Vijayawada. Kumar, G. R., Tejasree, S., Pavani, CH., and Sajith, P. (2013). Neuro-Wavelet Approach For Transient Current Based Transmission Line Protection Scheme.  i-manager’s Journal on Circuits and Systems , 1(2), 7-12.  https://doi.org/10.26634/jcir.1.2.2289 Abstract This paper presents a wavelet based protection scheme for a single line transmission system is connected to load. A wavelet based multi resolution analysis is used to find the detailed coefficients of the signals which are utilized to calculate fault index. These fault indexes are com...

Volume 1 Issue 2 March - May 2013 Research Paper Fuzzy Based Power Quality Improvement In Grid Connected Microgrid At The Distribution Level Naveen Bolisetti*, Mothiram Bhukya** * Department of Electrical and Electronics Engineering, SRKR Engineering college, Bhimavaram, Andhra Pradesh, INDIA. ** Department of Electrical and Electronics Engineering, SRKR Engineering college, Bhimavaram, Andhra Pradesh, INDIA. Bolisetti, N., and Ram, M. B. (2013). Fuzzy Based Power Quality Improvement In Grid Connected Microgrid at the Distribution Level.  i-manager’s Journal on Circuits and Systems , 1(2), 1-6.  https://doi.org/10.26634/jcir.1.2.2288 Abstract This paper suggests a new control strategy that consists of a grid interfaced four leg inverter control system using adaptive fuzzy controller for a 3-phase 4-wire distribution system that is capable of simultaneously compensating problems like power factor, current imbalance and current harmonics, and also of inject...

Volume 1 Issue 3 June - August 2013 Research Paper Analysis of Memristor Based Circuits Durga M.*, U.K. Sathiskumaar** * PG Scholar, Department of ECE, Nandha College of Technology, Erode. ** Assistant Professor, Department of ECE, Nandha College of Technology, Erode. Kavitha, K. V. N. (2013). PC Cooling Fan Using Pulse Width Modulation.  i-manager’s Journal on Circuits and Systems , 1(3), 19-22.  https://doi.org/10.26634/jcir.1.3.2445 Abstract In almost all of the currently working circuits, especially in analog circuits implementing signal processing applications, basic arithmetic operations such as multiplication, addition, subtraction and division are performed on values which are represented by voltages or currents. However, in this paper, we propose a new and simple method for performing analog arithmetic operations, by which in this scheme, signals are represented and stored through a memristance of the newly found circuit element, i.e. memristor, ...

Volume 1 Issue 3 June - August 2013 Research Paper PC Cooling fan using Pulse Width Modulation K.V.N. Kavitha* Assistant Professor, School of Electronics Engineering, VIT University, Vellore, India. Kavitha, K. V. N. (2013). PC Cooling Fan Using Pulse Width Modulation.  i-manager’s Journal on Circuits and Systems , 1(3), 19-22.  https://doi.org/10.26634/jcir.1.3.2444 Abstract The main objective of this paper is to design a circuit that can control the speed of a fan based on the ambient temperature. The fan is used for preventing the heat problems faced while using high graphics in a laptop or PC. The speed of the fan is varied based on the pulses that the timer sends out and the concept of pulse width modulation is used. This provides a simple and inexpensive way to protect systems like a computer from overheating. The existing external PC cooling fans have a higher energy consumption than the proposed model. This model is temperature controlled and the mot...

Research Paper Power Efficient Functional Units for High Speed Computations B. Dinesh*, R. Jagadeesh**, M. Kathirvelu*** *,** PG Students, Department of ECE, KPR Institute of Engineering and Technology, Coimbatore, Tamil Nadu, India. *** HOD & Professor, Department of Electronics and Communication, KPR Institute of Engineering and Technology, Coimbatore, Tamil Nadu. Dinesh, B. Jagadeesh, R. and Kathirvelu, M. (2013). Power Efficient Functional Units For High Speed Computations.  i-manager’s Journal on Circuits and Systems , 1(3), 13-18.  https://doi.org/10.26634/jcir.1.3.2443 Abstract Power consumed per unit switching activity in a CMOS based computational unit is greatly dependent on the power consumption of the sum and carry generation units. This paper is focussed on reducing area and PDP of the computational units through gate level and transistor level optimisation. At transistor level 6T Mux based CMOS-CPL XOR gates with stable rise and fall times ar...

Volume 1 Issue 3 June - August 2013 Research Paper IGBT Based Power Evacuation using Ac Segmented Transmission Lines D.Gowthami*, Tharanisrisakthi**, J. Shibu*** *- *** M.E. Students, Department of ECE, Bannari Amman Institute of Technology, Sathyamangalam,Tamil Nadu, India. Tharanisrisakthi, B. T., Gowthami, D., and Shibu, J. (2013). IGBT Based Power Evacuation Using AC Segmented Transmission Lines.  i-manager’s Journal on Circuits and Systems , 1(3), 8-12.  https://doi.org/10.26634/jcir.1.3.2442 Abstract Emerging countries like India, China suffer a huge problem of power crisis. The main reason for this is, power evacuation. The inability of bulk power evacuation with the present mode of transmission (HVAC & HVDC) leads us to a concept called B2B segmented AC transmission. B2B segmented AC transmission consists of a rectifier and inverter unit by using IGBT. With the advent of advanced power electronics devices, the authors are able to reduce the size...

Volume 1 Issue 3 June - August 2013 Research Paper A Two Stage Power Optimized Implantable Neural Amplifier Based on Cascoded Structures GuangleiAn*, Chris Hutchens**, Robert.L.Renneker II*** * PhD Student, MSVLSI Laboratory, School of Electrical and Computer Engineering, Oklahoma State University, Stillwater, Oklahoma. ** MSVLSI Laboratory, School of Electrical and Computer Engineering, Oklahoma State University, Stillwater, Oklahoma. *** Department of Behavioral and Brain Sciences, Erik Jonsson School of Engineering, University of Texas at Dallas, Richardson, Texas. GuangleiAn, Hutchens, C., and Renneker II, R. L. (2013). Two Stage Power Optimized Implantable Neural Amplifier Based On Cascoded Structures.  i-manager’s Journal on Circuits and Systems , 1(3), 1-7.  https://doi.org/10.26634/jcir.1.3.2441 Abstract A low power, low noise of the two stage neural amplifier used in an intelligent Radio-Frequency Identification (RFID) based on folded cascode...

Volume 1 Issue 4 September - November 2013 Research Paper Reduced Wirelength-Based Low Power Performance of Multibit Flip-Flop M.Karthick*, S. Vijayakumar** *PG Scholar, Department of Electronics and Communication Engineering, Paavai Engineering College, Namakkal, India. **Associate Professor, Department of Electronics and Communication Engineering, Paavai Engineering College, Namakkal, India. Karthick, M. and Vijayakumar, S. (2013). Reduced Wire length-Based Low Power Performance Of Multibit Flip-Flop.  i-manager’s Journal on Circuits and Systems , 1(4), 22-26.  https://doi.org/10.26634/jcir.1.4.2593 Abstract Power reduction is a main parameter to design VLSI circuits. In this paper, to design a number of D-flip flop performing at the same time, the given clock signal is reduced using multi bit flip-flop. The multi bit flip flop is mainly used to improve the clock power for the given common clock signal and to reduce the switching power. This method is p...

Volume 1 Issue 4 September - November 2013 Research Paper Computer Assisted System for the Autistic Children K.Kiruba*, D.Sharmila**, K.Suganya***, Sowmya**** * Assistant Professor and Research Scholar, K.S.R.College of Engineering, Tiruchengode, Tamilnadu.. ** Professor, Bannari Amman Institute of Technology, Sathyamangalam, Tamilnadu. ***-**** Students, K.S.R.College of Engineering, Tiruchengode, Tamilnadu. Kiruba, K., Sharmila, D., Suganya, K., and Sowmya, K. (2013). Computer Assisted System For The Autistic Children.  i-manager’s Journal on Circuits and Systems , 1(4), 18-21.  https://doi.org/10.26634/jcir.1.4.2591 Abstract Autistic children lack communication and socialization showing stereotyped behavior. This paper is emphasizing on a hardware and a software to identify the needs of such children and also to provide speech therapy. Software has been designed to engage the child throughout the day and helps the parents to identify their needs. In ...