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IEE Proceedings C - Generation, Transmission and Distribution

Issue 1 • Date January 1980

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Displaying Results 1 - 9 of 9
  • Unit commitment of thermal generation

    Publication Year: 1980, Page(s):3 - 8
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (627 KB)

    The problem of determining a feasible generation schedule for a thermal power system that minimises the cost subject to operating and electrical constraints is formulated as a mixed integer programming problem. The model caters for linear and nonlinear fuel cost relations, exponential start up costs, nonlinear loading rates and limits on generators outputs. The method of solution is based on a bra... View full abstract»

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  • Transient stability of multimachine systems with saturable exciters

    Publication Year: 1980
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (675 KB)

    A method is described for estimating the critical clearing times for a multimachine power system. It has previously been applied in situations where each machine is represented by a constant voltage behind reactance, and is extended here to the case when automatic voltage regulators and exciters with saturation limits are modelled. The aim of the method is to eliminate the need for integration of ... View full abstract»

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  • Fault studies in a.c. systems interconnected by h.v.d.c. links

    Publication Year: 1980, Page(s):15 - 19
    Cited by:  Papers (3)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (566 KB)

    Steady state and dynamic models of high voltage direct current transmission links, suitable for the analysis of a.c./d.c. power systems under fault conditions, are described. The New Zealand a.c./d.c. system is used to test the models with balanced and unbalanced faults. The results are used to discuss the extent of their applicability and, particularly, the scope of the dynamic simulation in the ... View full abstract»

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  • Calculation of the losses in three-phase transformer tanks

    Publication Year: 1980, Page(s):20 - 25
    Cited by:  Papers (3)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (554 KB)

    An analytical method for the calculation of stray load losses in three-phase transformer tanks is presented. Curvature of the winding, real shape of the tank, three-phase excitation, hysteresis and nonlinearity are taken into account. The influence of hysteresis and nonlinearity is taken into account by the so-called complex permeability. The calculated losses are in good agreement with experiment... View full abstract»

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  • Flow near the upstream electrode of gas-blast circuit breakers

    Publication Year: 1980, Page(s):26 - 32
    Cited by:  Papers (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1034 KB)

    A numerical method for incompressible, axisymmetric flow computations has been used to investigate flows through passages typical of those in gas-blast circuit breakers near the upstream electrode. Flow separation from the electrode is allowed for when the point of separation is known. Compressibility is approximately allowed for, to make comparisons with experimental results, and the agreement sh... View full abstract»

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  • Experimental analysis of earth wires for induced lightning surges

    Publication Year: 1980, Page(s):33 - 40
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (784 KB)

    Experimental studies were made on induced lightning surges on multiconductor systems. The results obtained support the theory that an induced voltage on a conductor of a multiconductor system is the same as that on a single-conductor line occupying the same position. The effectiveness of earth wires against induced voltages were checked and a general formula for many earth wires with many earth co... View full abstract»

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  • Interactive calculation of power system transients

    Publication Year: 1980, Page(s):41 - 43
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (256 KB)

    This paper describes an interactive facility for the calculation and display of power-system transient-voltage and current waveforms. By obtaining these from an interactive computer with a graphics terminal, the total turn-round time of a program with a fast and efficient algorithm can be reduced from several hours to a few minutes. This enables an engineer to gain the insight and feel for a probl... View full abstract»

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  • Discussion on Implementation of new approach to determination of synchronous-machine parameters from tests and Prediction of load characteristics of turbogenerators

    Publication Year: 1980, Page(s):44 - 47
    IEEE is not the copyright holder of this material | PDF file iconPDF (523 KB)
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  • Adaptive excitation control

    Publication Year: 1980, Page(s):48 - 52
    IEEE is not the copyright holder of this material | PDF file iconPDF (165 KB)
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