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Power Systems, IEEE Transactions on

Issue 3 • Date Aug. 1987

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Displaying Results 1 - 25 of 59
  • Table of contents

    Publication Year: 1987 , Page(s): c1
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    Freely Available from IEEE
  • IEEE Power Engineering Society

    Publication Year: 1987 , Page(s): c2
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    Freely Available from IEEE
  • A Self Commutated Power Converter for Stabilizing Torsional Interactions

    Publication Year: 1987 , Page(s): 513 - 521
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (2218 KB)  

    A recently proposed method of counteracting torsional interactions referred to as transmission current feedback involves the measurement of the transmission system currents from which the subsynchronous components that produce torsional interactions are extracted. Once extracted, these are suitably amplified by a power converter and injected into the generator bus of the affected steam turbine so ... View full abstract»

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  • Design of Optimal Modulation Controllers for Multiarea AC/DC Systems Using Eigenvalue Sensitivities

    Publication Year: 1987 , Page(s): 522 - 528
    Cited by:  Papers (8)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1030 KB)  

    This paper develops a new technique for the design of optimal modulation controllers for multi-area ac/dc systems. The technique is based on optimal pole assignment using eigenvalue sensitivities. The basic feature of the proposed method is that both the diagonal and the off-diagonal elements of the weighting matrices are used for the eigenvalue assignment which results in increased design flexibi... View full abstract»

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  • A Microcomputer Based On-Line Identification Approach to Power System Dynamic Load Modelling

    Publication Year: 1987 , Page(s): 529 - 536
    Cited by:  Papers (15)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1305 KB)  

    An on-line method for the development of power system load models using system identification techniques is presented. The modelling procedure involves the selection of the load model structure as well as the estimation of the load model parameters. A load model structure selection technique based on the model reference error cost function is used and a square root based least squares estimator is... View full abstract»

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  • An Efficient Hydrothermal Scheduling Algorithm

    Publication Year: 1987 , Page(s): 537 - 542
    Cited by:  Papers (31)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (879 KB)  

    In this paper a Hydrothermal Scheduling Algorithm (HSA) for deterministic inflows is presented. A nonlinear network flow model representing the hydrothermal scheduling problem is used. By exploiting the special network structure, a temporally expanded arborescence [1], the HSA code attains important computational savings in processing time and memory requirements allowing the use of microcomputers... View full abstract»

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  • Coordinated Synthesis of Multimachine Power System Stabilizer Using an Efficient Decentralized Modal Control (DMC) Algorithm

    Publication Year: 1987 , Page(s): 543 - 550
    Cited by:  Papers (24)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1444 KB)  

    This paper presents a new method for simultaneously selecting the power system stabilizer (PSS) parameters in multimachine power systems. Design of local output feedback power system stabilizer using local signal of the generator (e.g. speed or power) is formulated as a decentralized modal control (DMC) problem. Exact model reduction based on modal control theory is proposed to make the determinat... View full abstract»

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  • Discussion

    Publication Year: 1987 , Page(s): 550 - 551
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  • Autoregressive Filters for the Identification and Replacement of Bad Data in Power System State Estimation

    Publication Year: 1987 , Page(s): 552 - 558
    Cited by:  Papers (8)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1421 KB)  

    The quadratic cost function J(x¿) and the normalized residuals rN are used conventionally for identifying the presence and location of bad measurements in power system state estimation. These are "post estimation" tests and therefore require the complete re-estimation of system states whenever bad data is identified. This paper presents a pre-estimation filter for detection and identification of ... View full abstract»

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  • Discussion

    Publication Year: 1987 , Page(s): 558 - 560
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  • Controllable Var Compensator: A Potential Solution to Loadability Problem of Low Capacity Power Systems

    Publication Year: 1987 , Page(s): 561 - 567
    Cited by:  Papers (6)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1728 KB)  

    The stability of the voltage at the receiving end of radial transmission links puts a limit on the amount and character of load that can be connected at that end. The paper demonstrates the potential of having a static var compensator SVC for supporting the voltage at the load end and therefore increasing the loadability of such links. Radial links of different transmission voltages and lengths as... View full abstract»

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  • A Method of Representing Isolated Operation of a Group of Induction Motor Loads

    Publication Year: 1987 , Page(s): 568 - 575
    Cited by:  Papers (6)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1341 KB)  

    A method of representing the isolated operation of a group of induction motor loads using reduced order equations is presented. The method differs from the standard method of neglecting stator transients in that the rate of change of stator flux linkages are neglected in a reference frame whose speed varies as a function of the stator frequency. The accuracy of the resulting reduced order represen... View full abstract»

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  • A Newton Optimal Power Flow Program for Ontario Hydro EMS

    Publication Year: 1987 , Page(s): 576 - 582
    Cited by:  Papers (23)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1324 KB)  

    A Newton optimal power flow program was developed for the Ontario Hydro Energy Management System. Each iteration minimizes a quadratic approximation of the Lagrangian. All the equations are solved simultaneously for all the unknowns. A new technique based on linear programming is used to identify the binding inequalities. All binding constraints are enforced using Lagrange multipliers. The algorit... View full abstract»

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  • Discussion

    Publication Year: 1987 , Page(s): 582 - 584
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  • Reactive Power Constrained Loadability Limits of Series Capacitor Compensated EHV Transmission Lines

    Publication Year: 1987 , Page(s): 585 - 591
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1109 KB)  

    This paper determines the loadability of a 500 kV series-compensated transmission line that are consistent with available var reserves taking into consideration the distributed nature of the line parameters and the effects of load-voltage characteristics and transformer taps at the load end. View full abstract»

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  • Adaptive Weather-Sensitive Short Term Load Forecast

    Publication Year: 1987 , Page(s): 592 - 598
    Cited by:  Papers (20)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1099 KB)  

    This paper introduces an adaptive, weather sensitive, short term load forecast algorithm that has been developed for two South Carolina Power Systems: CEPCI (Central Electric Power Cooperatives, Inc., Central for short) and Combined System. The model is based on a State Space formulation specially tailored for this application. A detailed correlation study is performed to identify the most relevan... View full abstract»

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  • Discussion

    Publication Year: 1987 , Page(s): 599 - 600
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  • Reliability Evaluation of Systems with after Fault Switching

    Publication Year: 1987 , Page(s): 601 - 607
    Cited by:  Papers (4)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1320 KB)  

    A new method is presented for reliability evaluation of power systems where components may be switched-out after faults. The method utilizes the concept of boundary conditions for the computation of the probability and frequency of system failure. The truncated state enumeration method applied traditionally to the analysis of such systems is now replaced by a network approach which does not, in pr... View full abstract»

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  • Discussion

    Publication Year: 1987 , Page(s): 607
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  • A Method for Solving the Fuel Constrained Unit Commitment Problem

    Publication Year: 1987 , Page(s): 608 - 614
    Cited by:  Papers (42)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1239 KB)  

    The unit commitment problem involves finding the hourly commitment schedule for the thermal units of an electrical system, and their associated generation, over a period of up to a week. For some utilities, contractual or other factors limit the amount of fuel available to certain of the units or plants. This paper describes a new method which solves the unit commitment problem in the presence of ... View full abstract»

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  • Discussion

    Publication Year: 1987 , Page(s): 614
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  • Power System Stabilization via Parameter Optimization - Application to the Hellenic Interconnected System

    Publication Year: 1987 , Page(s): 615 - 622
    Cited by:  Papers (20)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1285 KB)  

    Dynamic stability problems are usually overcome through the application of Power System Stabilizers. This paper presents an alternative approach for power system stabilization based upon the tuning of the existing generator controllers, both governors and A.V.R.'s. The sensitivities of the eigenvalues to the controller parameters are evaluated and an optimization technique is developed to maximize... View full abstract»

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  • Discussion

    Publication Year: 1987 , Page(s): 623
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  • A Parallel Computation Algorithm for Static State Estimation by Means of Matrix Inversion Lemma

    Publication Year: 1987 , Page(s): 624 - 631
    Cited by:  Papers (9)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1425 KB)  

    This paper presents an effective parallel computation algorithm for the static state estimation of a power system. The proposed algorithm makes use of the matrix inversion lemma and assumes the use of a MIMD type computer system. The optimal block-partitioning algorithm which tears a power system into several blocks is presented and its clear difference from that for the load flow is clarified. Si... View full abstract»

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  • Discussion

    Publication Year: 1987 , Page(s): 632
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Aims & Scope

Covers the requirements, planning, analysis, reliability, operation, and economics of electric generating, transmission, and distribution systems for general industrial, commercial, public, and domestic consumption.

Full Aims & Scope

Meet Our Editors

Editor-in-Chief
Antonio J. Conejo
The Ohio State University