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IEE Proceedings C - Generation, Transmission and Distribution

Issue 1 • Date Jan. 1990

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Displaying Results 1 - 10 of 10
  • Novel decoupled power flow

    Publication Year: 1990, Page(s):1 - 7
    Cited by:  Papers (4)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (582 KB)

    A novel decoupled power flow method is reported, based on a novel decoupling form, and is developed for the purpose of obtaining best convergence. It is therefore referred to as the best in the novel decoupling form. The proposed method converges well not only on normal r/x ratio systems, but also on systems with high r/x ratio lines; the difficulties in convergence of decoupled power flow methods... View full abstract»

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  • Application of a power system stabiliser and a static VAr controller to a multimachine power system

    Publication Year: 1990, Page(s):8 - 12
    Cited by:  Papers (3)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (415 KB)

    The damping of the electromechanical mode oscillation in a multimachine power system is improved by a power system stabiliser (PSS). To prevent the system voltage profile from being deteriorated by the PSS, a static VAr compensator (SVC) with a self-tuning feedback controller is also developed. The effectiveness of the proposed PSS and SVC is demonstrated by computer simulation of the dynamic resp... View full abstract»

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  • Multiple objective optimal load flow: a new perspective

    Publication Year: 1990, Page(s):13 - 18
    Cited by:  Papers (7)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (570 KB)

    In the past a great deal of work has been reported on optimal load flow (OLF). However, in most of the works only one aspect of the power system has been optimised. The OLF problem (optimal real and reactive power dispatch) has been attempted sequentially, rather than simultaneously. A new formulation of the OLF problem has been attempted to minimise both the cost of generation and transmission lo... View full abstract»

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  • Digital high-speed calculation of the distorted signal fundamental component

    Publication Year: 1990, Page(s):19 - 24
    Cited by:  Papers (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (440 KB)

    Calculation of current and voltage phasors in power system protection and control is based on correlation of the signals with sine/cosine (or similar) functions, assuming data windows which are constant and usually amount to one period of the fundamental frequency. However this method introduces large errors in transient states, which follow changes of the signal amplitude and/or phase. The transi... View full abstract»

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  • Automatic meter-reading system by power line carrier communications

    Publication Year: 1990, Page(s):25 - 31
    Cited by:  Papers (12)  |  Patents (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (637 KB)

    The authors are developing the technology of total distribution automation for performing load control, line switch control and automatic meter-reading by using ripple control (outbound signal in medium voltage), current answer-back signal (inbound signal in medium voltage) and phase pulse signal (two-way communication signal in low voltage distribution line). The authors cover the waveform-detect... View full abstract»

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  • Thermal generator scheduling algorithm based on heuristic-guided depth-first search

    Publication Year: 1990, Page(s):33 - 43
    Cited by:  Papers (6)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (978 KB)

    The authors develop an algorithm which is suitable for implementation on computers by a logic programming language, PROLOG, for scheduling thermal generators to meet the daily rising system demand and spinning reserve requirement in the operation of power systems. The algorithm is based on the depth-first and heuristic search techniques in artificial intelligence, and an interpretation of the sche... View full abstract»

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  • Minimisation of uncharacteristic harmonics in HVDC convertors through firing angle modulation

    Publication Year: 1990, Page(s):45 - 52
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (749 KB)

    A modulating signal (MS) applied to the control voltage has a profound effect on the DC and AC-side uncharacteristic harmonic currents. The presence of harmonic distortion in the AC-busbar voltage causes distortion on the DC-line current ripple. A method of harmonic minimisation based on approximate linear relationships between uncharacteristic harmonics and the MS was developed and implemented on... View full abstract»

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  • Experimental analysis of DC corona on unipolar transmission lines

    Publication Year: 1990, Page(s):53 - 62
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (860 KB)

    To analyse the features of the ionised field produced by an HVDC transmission line, the unipolar weak corona performance is carefully investigated. In addition, in view of the facility of design performed with laboratory models, some guidelines are given for the scaling of experimental data derived from small-electrode installations to full-scale systems.<> View full abstract»

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  • Statistical processing of chopped currents and overvoltages in two types of sulphur hexafluoride breaker technology

    Publication Year: 1990, Page(s):63 - 68
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (611 KB)

    Tests on breaking three-phase low inductive currents were carried out with two medium-voltage SF/sub 6/ breakers using different breaking techniques; the puffer method and the rotating arc. The statistical interpretation of the chopped currents and overvoltages produced by the two types of equipment showed that the two technologies performed satisfactorily, that is without excessive stresses for t... View full abstract»

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  • Optimal network tearing using simulated annealing

    Publication Year: 1990, Page(s):69 - 72
    Cited by:  Papers (21)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (386 KB)

    A new algorithm for optimal tearing of networks is presented. The algorithm is based on the simulated annealing principle and is able to divide a power system network model into a number of subnetworks in order to optimise the use of parallel computer systems for network analysis. Computational examples are given which illustrate the properties of the new algorithm. The results obtained are compar... View full abstract»

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