Publications
254 results found
Das B, Pal BC, 2006, Voltage control performance of AWS connected for grid operation, IEEE TRANSACTIONS ON ENERGY CONVERSION, Vol: 21, Pages: 353-361, ISSN: 0885-8969
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- Citations: 18
Majumder R, Pal BC, Dufour C, et al., 2006, Design and real-time implementation of robust FACTS controller for damping inter-area oscillation, IEEE TRANSACTIONS ON POWER SYSTEMS, Vol: 21, Pages: 809-816, ISSN: 0885-8950
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- Citations: 72
McDonald JDF, Pal BC, 2006, Representing the risk imposed by different strategies of distribution system operation, General Meeting of the Power-Engineering-Society, Publisher: IEEE, Pages: 2570-+, ISSN: 1932-5517
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- Citations: 1
Zhang XP, Rehtanz C, Pal BC, 2006, Flexible AC transmission systems: modelling and control, Publisher: Springer-Verlag, ISBN: 9783540306061
Fu L, Pal B, Cory B, 2006, Voltage regulation for primary level power networks by virtual voltage coordinated control, General Meeting of the Power-Engineering-Society, Publisher: IEEE, Pages: 2597-+, ISSN: 1932-5517
Das B, Pal BC, 2006, Voltage control performance of AWS connected for grid operation, General Meeting of the Power-Engineering-Society, Publisher: IEEE, Pages: 1653-1653, ISSN: 1932-5517
Anaparthi KK, Pal B, 2006, Measurement-based system identification and multi-input PSS design for damping electromechanical oscillations, IEEE Power India Conference, 10 - 12 April 2006, New Delhi, Publisher: IEEE
Chaudhuri B, Korba P, Pal BC, 2006, Simultaneous stabilization technique for damping controller design in power systems, INTELLIGENT AUTOMATION AND SOFT COMPUTING, Vol: 12, Pages: 41-49, ISSN: 1079-8587
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- Citations: 6
Majumder R, Chaudhuri B, El-Zobaidi H, et al., 2005, LMI approach to normalised H-infinity loop-shaping design of power system damping controllers, IEE P-GENER TRANSM D, Vol: 152, Pages: 952-960, ISSN: 1350-2360
Application of the normalised R., loop-shaping technique for design and simplification of damping controllers in the LMI framework is illustrated. A linearised model of the power system is pre- and post-compensated using the loop-shaping approach. The problem of robust stabilisation of a normalised coprime factor plant description is translated to a generalised H-infinity problem. The solution is sought numerically using LMIs with additional pole-placement constraints. This ensures that the time-domain specifications are met besides robust stabilisation.
Anaparthi KK, Pal BC, El-Zobaidi H, 2005, Coprime factorisation approach in designing multi-input stabiliser for damping electromechanical oscillations in power systems, IEE P-GENER TRANSM D, Vol: 152, Pages: 301-308, ISSN: 1350-2360
The application of loop shaping in H-infinity control design through a dual-input power system stabiliser (PSS) in a benchmark power system model is demonstrated. The PSS stabilises two key system poles contributing to critical electromechanical oscillations involving turbine generators and electrical network. The IEEE First Benchmark Model has been considered in this study to demonstrate the effectiveness of the control. A linearised model of the system is pre- and post-compensated using loop-shaping approach. The problem of robust stabilisation of a normalised coprime factor plant description is formulated into a generalised H-infinity problem and the solution is obtained analytically. The performance of the controller shows robustness to electromechanical modes, which were otherwise very poorly damped or undamped depending on operating conditions. The robustness is further validated in Simulink, including nonlinearities and device saturation limits.
Majumder R, Chaudhuri B, Pal BC, 2005, A probabilistic approach to model-based adaptive control for damping of interarea oscillations, IEEE TRANSACTIONS ON POWER SYSTEMS, Vol: 20, Pages: 367-374, ISSN: 0885-8950
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- Citations: 27
Mei F, Pal BC, 2005, Modelling and small-signal analysis of a grid connected doubly-fed induction generator, IEEE-Power-Engineering-Society General Meeting, Publisher: IEEE USA, Pages: 2101-2108
This paper describes the modeling and small signal analysis of a grid connected doubly-fed induction generator(DFIG). Different models are formulated and compared witheach other for different assumptions (two or one-mass drive train,with or without stator transients). The models are developedfrom the basic flux linkage, voltage and torque equations.Eigenvalues and participation factor analysis of the linearizedmodels are carried out to relate the DFIG electromechanical modes to its relevant state variables.
Mei F, Pal BC, 2005, Modelling and small-signal analysis of a grid connected doubly-fed induction generator, New York, IEEE Power Engineering Society General Meeting, 12 - 16 June 2005, San Francisco, CA, Publisher: Ieee, Pages: 1503-1510
Anaparthi KK, Chaudhuri B, Thornhill NF, et al., 2005, Coherency identification in power systems through principal component analysis, IEEE Transactions on Power Systems, Vol: 20, Pages: 1658-1660, ISSN: 0885-8950
Majumber R, Chaudhuri B, Pal BC, et al., 2005, A unified smith predictor approach for power system damping control design using remote signals, IEEE Transactions on Control System Technology, Vol: 13, Pages: 1063-1068, ISSN: 1063-6536
Pal B, Chaudhuri B, 2005, Robust control in power systems, Boston, Publisher: Springer, ISBN: 9780387259499
Chaudhuri B, Majumder R, Pal BC, 2004, Wide-area measurement-based stabilizing control of power system considering signal transmission delay, IEEE TRANSACTIONS ON POWER SYSTEMS, Vol: 19, Pages: 1971-1979, ISSN: 0885-8950
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- Citations: 267
Chaudhuri B, Majumder R, Pal BC, 2004, Application of multiple-model adaptive control strategy for robust damping of interarea oscillations in power system, IEEE TRANSACTIONS ON CONTROL SYSTEMS TECHNOLOGY, Vol: 12, Pages: 727-736, ISSN: 1063-6536
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- Citations: 67
Pradhan PK, Jaisankar P, Pal B, et al., 2004, Selective reduction of aldehydes to alcohols using alumina with a catalytic amount of base under microwave irradiation, SYNTHETIC COMMUNICATIONS, Vol: 34, Pages: 2863-2872, ISSN: 0039-7911
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- Citations: 2
Chaudhuri B, Pal BC, 2004, Robust damping of multiple swing modes employing global stabilizing signals with a TCSC, IEEE TRANSACTIONS ON POWER SYSTEMS, Vol: 19, Pages: 499-506, ISSN: 0885-8950
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- Citations: 177
Pal BC, Chaudhuri B, Zolotas AC, et al., 2004, Simultaneous stabilisation approach for power system damping control design through TCPAR employing global signals, IEE P-GENER TRANSM D, Vol: 151, Pages: 43-50, ISSN: 1350-2360
A robust damping control design methodology for a thyristor controlled phase angle regulator using global signals is proposed based on the simultaneous stabilisation approach. The numerical design algorithm determines the controller parameters in order to guarantee closed-loop poles in the left half plane with preferential treatment to those corresponding to the inter-area modes. Plant models under different operating conditions are incorporated in the design formulation to achieve the desired performance robustness. A three-input/single-output controller is designed for the TCPAR to provide adequate damping to the critical inter-area modes of a study system model. Based on the observability of the inter-area modes, real power flows from remote locations are used as feedback stabilising signals. The damping performance of the controller is examined in the frequency and time domains and is found to be robust against varying power-flow patterns, nature of loads, tie-fine strengths and system non-linearities, including saturation.
Jabr RA, Pal BC, 2004, Iteratively reweighted least-squares implementation of the WLAV state-estimation method, IEE P-GENER TRANSM D, Vol: 151, Pages: 103-108, ISSN: 1350-2360
An implementation of the weighted least absolute value (WLAV) method for obtaining an estimate of the state of the power system is presented. Most of the known WLAV methods use some form of linear programming software to find the best estimate. The paper shows that it is possible to obtain a WLAV estimate by simply applying the Newton-Raphson method to the set of equations that yield the critical points. The resulting iterative scheme corresponds to solving a sequence of linear weighted least-squares (WLS) problems. The proposed implementation enables the use of well-known techniques of WLS estimation and, consequently, facilitates the integration of the WLAV function in an energy management system. Test results on standard IEEE test systems reveal that the proposed implementation is competitive with a standard WLAV algorithm that uses a state-of-the-art implementation of an interior-point method.
Chaudhuri B, Pal B, 2004, Robust damping of multiple swing modes employing global stabilizing signals with a TCSC (Meeting abstract), Denver, CO, USA, 2004 IEEE Power Engineering Society general meeting, 6 - 10 June 2004, Publisher: IEEE, Pages: 1709-1709
Anaparthi KK, Pal BC, 2004, H-infinity loop shaping design for damping SSR in series compensated power systems, EEE 2004 PES General Meeting, 6 - 10 June 2004, Denver
Chaudhuri B, Korba P, Pal BC, 2004, Damping controller design through simultaneous stabilization technique, 5th International Symposium on Intelligent Automation and Control/9th International Symposium on Manufacturing and Applications held at the 6th Biannual World Automation Congress, Publisher: TSI PRESS, Pages: 13-18
Anaparthi KK, Pal BC, 2004, Coprime factorization approach to multi-input PSS design for damping SSR and local modes, New York, International conference on power system technology (POWERCON 2004), Singapore, Singapore, 21 - 24 November 2004, Publisher: IEEE, Pages: 684-689
Andersson G, Green T, Pal B, et al., 2004, Advanced FACTS control, ABB Review, Vol: 4, Pages: 21-26, ISSN: 1013-3119
FACTS devices – power electronics based devices for controlling var compensation and power flow in electricity supply networks – require specific control algorithms in order for their benefits to be realized in a broad portfolio of applications. To gain the benefits that can arise from the use of more than one FACTS device within a specific network area, ABB has initiated a joint project with the Swiss Federal Institute of Technology and Imperial College London. The project sets out to answer, in an industrially applicable way, questions that arise when coordinating wide area control for power flow control and damping of oscillations
Chaudhuri B, Korba P, Pal BC, 2004, Damping controller design through simultaneous stabilization technique, World automation congress, Seville, 28 June - 1 July 2004, Pages: 1-8
Chaudhuri B, Pal BC, Zolotas AC, et al., 2003, Mixed-sensitivity approach to <i>H</i><sub>∞</sub> control of power system oscillations employing multiple FACTS devices, IEEE TRANSACTIONS ON POWER SYSTEMS, Vol: 18, Pages: 1149-1156, ISSN: 0885-8950
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- Citations: 116
Jabr RA, Pal BC, 2003, Iteratively re-weighted least absolute value method for state estimation, IEE P-GENER TRANSM D, Vol: 150, Pages: 385-391, ISSN: 1350-2360
A modified version of the weighted least absolute value (WLAV) method for the solution of the power system-state-estimation problem is presented. The WLAV method can be seen as minimising a linear objective function subject to a set of nonlinear constraints. The modification is aimed at producing a WLAV estimator that remains insensitive to bad data, even if they are associated with leverage-point measurements. This is achieved by bending the linear objective function, so that the residuals of bad measurements are allowed to grow without incurring much additional cost in the objective function. Consequently, the optimisation procedure would find an optimal solution where the residuals of all bad measurements are nonzero. The optimisation is carried out via sequential linear programming. It is shown that each linear program corresponds to a linearised WLAV problem with weights adjusted automatically during the iterations. To ensure fast execution time, the linear program is solved using a homogeneous interior-point method. Computational results show that the proposed method can identify bad data in leverage points.
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