Application of support vector machines for fault diagnosis in power transmission system (2008)
Ravikumar, B, Thukaram, D, Khincha, HP
Post-fault studies of recent major power failures around the world reveal that mal-operation and/or improper co-ordination of protection system were responsible to some extent. When a major power...
Optimal reactive power dispatch in a large power system with AC – DC and FACTS controllers (2008)
With the increased loading of existing power system, the problem of voltage stability and voltage collapse has become a major concern in power system planning and operation. The dependence of the...
This paper presents an approach for alleviation of network over loads in the day-to-day operation of power systems under deregulated environment. The control used for over load alleviation is real...
The voltage stability problem has become a major concern in planning and operation of today’s power system as a result of stressed conditions. It is known that the following disturbances, on-load...
Optimum allocation of reactive power for voltage stability improvement in AC-DC power systems (2006)
Thukaram, D, Jenkins, L, Visakha, K
The dependence of the system voltage stability on reactive power distribution forms the basis for reactive power optimisation. The technique attempts to utilise fully the reactive power sources in...
Thukaram, D, Jenkins, L, Visakha, K
The operation and planning of large interconnected power systems are becoming increasingly complex. To maintain security of such systems, it is desirable to estimate the effect of contingencies and...
Thukaram, D, Khincha, HP, Vijaynarasimha, HP
This paper presents an artificial neural network (ANN) and support vector machine (SVM) approach for locating faults in radial distribution systems. Different from the traditional Fault Section...
Thukaram, D, Khincha, H P, Pakka, V H
This paper presents an artificial neural network (ANN) and support vector machine (SVM) approach for locating faults in radial distribution systems. Different from the traditional Fault Section...
Thukaram, D, Khincha, H P, Pakka, V H
This paper presents an artificial neural network (ANN) and support vector machine (SVM) approach for locating faults in radial distribution systems. Different from the traditional Fault Section...
Thukaram, D, Khincha, H P, Pakka, V H
This paper presents an artificial neural network (ANN) and support vector machine (SVM) approach for locating faults in radial distribution systems. Different from the traditional Fault Section...
Thukaram, D, Khincha, H P, Pakka, V H
This paper presents an artificial neural network (ANN) and support vector machine (SVM) approach for locating faults in radial distribution systems. Different from the traditional Fault Section...
Visakha, K, Thukaram, D, Jenkins, Lawrence
In the present day power system planning and operation, considerable interest is being shown in system security and stability analysis. Pattern of load sharing / generation scheduling that results in...
Visakha, K, Thukaram, D, Jenkins, Lawrence
This paper presents a usage-based transmission cost allocation method based on a new set of line utility factors (LUFs), which provides power transaction impact on each element of the network in...
Thukaram, D, Khincha, HP, RaviKumar, B
Phase-wise unbalanced reactive power compensations are required in distribution systems for dynamic power factor correction and terminal voltage stabilization. Shunt compensators are generally used...
Shenoy, UJ, Sheshadri, KG, Parthasarathy, K, Khincha, HP, Thukaram, D
This paper presents the modeling and simulation of a $25kV$ $50Hz$ $AC$ traction system using power system block set (PSB)/SIMULINK software package. The three-phase system with substations, track...
Monitoring the Effects of On-Load Tap Changing Transformers on Voltage Stability (2004)
Thukaram, D, Jenkins, Lawrence, Khincha, HP, Yesuratnam, G, Kumar, Ravi B
It is becoming increasingly important for power system planning and operating engineers to be capable of performing comprehensive voltage stability analyses of the systems. This need is largely due...
Shenoy, UJ, Sheshadri, KG, Parthasarathy, K, Khincha, HP, Thukaram, D
This paper presents the design, implementation and testing of a single-phase distance relaying scheme for $25kV$ $50 Hz$ AC traction system using a Texas instruments TMS320C50 digital signal...
Bapiraju, JVVN, Shenoy, UJ, Sheshadri, KG, Khincha, HP, Thukaram, D
The presence of flexible AC transmission system (FACTS) devices in the loop significantly affects the apparent resistance and reactance seen by a distance relay, as FACTS devices respond to changes...
Visakha, K, Thukaram, D, Jenkins, Lawrence, Khincha, HP, Routray, PK
Transmission charge allocation is one of the major issues in transmission open access faced by the electric power industry. This paper introduces a new method of transmission charge allocation based...
Visakha, K, Thukaram, D, Jenkins, Lawrence, Khincha, HP
Electric power systems are exposed to various contingencies. Network contingencies often contribute to overloading of network branches, unsatisfactory voltages and also leading to problems of...
A Three Phase Fault Detection Algorithm for Radial Distribution Networks (2002)
Thukaram, D, Khincha, HP, Jenkins, L, Visakha, K
Distribution networks, unlike in transmission system, may not be provided with protective devices or circuit breakers in each branch of the feeder. For any fault in the feeder, a large part of the...
ANN applications in fault locators (2001)
Purushothama, GK, Narendranath, AU, Thukaram, D, Parthasarathy, K
Recent developments indicate that Artificial Neural Networks (ANNs) may be appropriate for assisting dispatchers in operating electric power systems. The fault location algorithm being a key element...
A numerically stable decomposition based power system state estimation algorithm (1998)
Pandian, A, Parthasarathy, K, Thukaram, D, Soman, SA
This paper proposes a new approach for solving the equality constrained power system state estimation (PSSE) problem. The proposed approach decomposes the linear least squares with the linear...
Voltage Stability Improvement: Case Studies of Indian Power Networks. (1998)
Thukaram, D, Parthasarathy, K, Khincha, HP, Udupa, Narendranath, Bansilal, A
It is becoming increasingly important for power system planning and operating engineers to be capable of performing comprehensive voltage stability analyses of the systems. This need is largely due...
An Expert System for Voltage Control in a Power System Network (1995)
Bansilal, *, Thukaram, D, Parthasarathy, K
This paper presents a prototype of an expert system for alleviation of voltage violations in the day-to-day operation of large power networks. Voltage control for varying load and generation...
Soman, SA, Parhthsarathy, K, Thukaram, D
This paper addresses the problem of curtailing the number of control actions and minimizing controller movements for real-time voltage/reactive power control. Algorithms are proposed to identify the...
Parallel implementation of power flow program on a message passing multiprocessor (1993)
Nagaraja, R, Parthasarathy, K, Thukaram, D, Basu, A
The desire for faster computation has motivated the application of parallel processing to power system analysis. For a particular problem, the implementation depends on this problem as well as the...
Analysis of parallel algorithms for power flow (1990)
Bhatt, D, Thukaram, D, Parthasarathy, K, Sridhar, MK, Srinath, R, Suresh, K
Load flow is one of the most frequently called routines in the planning, operation, as well as in the security control of a power system. For the traditional offline single-case solution, algorithmic...
Thukaram, D, Parthasarathy, K, Iyengar, BSR, Swamy, TS
The authors present a methodology for evaluation of optimum active power generation scheduling and alleviation of overvoltage and undervoltage conditions in a day-to-day operation of large power...
Design of a self-tuning power system stabilizer for multi-machine power system (1990)
Bao, ND, Gupta, Sen DP, Thukaram, D
It is well-known that the existing power system stabilizers (PSS) cannot properly deal with composite mode oscillations of machines. Because it is difficult to design the PSS which can be effective...
Dynamic secure economic dispatch-a new algorithm (1990)
Rao, Nagendra PS, Sinha, MK, Thukaram, D
The problem of dynamic secure economic multiperiod generation scheduling considering spinning reserve requirement and group limits is considered and a new algorithm is proposed for the solution. The...
Personal computer (PC) based scheme for testing protective relays (1990)
Shenoy, Jayachandra U, Parthasarathy, K, Thukaram, D, Krishnaiah, D
The authors present the design and development of a personal computer (IBM PC/XT compatible) based hardware scheme for testing protective relays. Due to the standardisation of PCs, its low cost and...