By Topic

IEE Proceedings - Generation, Transmission and Distribution

Issue 1 • Date Jan 1997

Filter Results

Displaying Results 1 - 13 of 13
  • Tabu search approach to alarm processing in power systems

    Publication Year: 1997, Page(s):31 - 38
    Cited by:  Papers (15)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (952 KB)

    A tabu search (TS) based approach is proposed for alarming processing in power systems. First, several existing evaluation criteria describing the power system alarm processing problem are briefly discussed, and a new criterion is proposed, Secondly, a novel method is developed to solve this problem using a TS based method. Finally, two examples are used to demonstrate the feasibility and efficien... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Identifiability of load models [power systems]

    Publication Year: 1997, Page(s):45 - 49
    Cited by:  Papers (10)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (452 KB)

    There have been many models developed to represent power system electric loads. However, the identifiability problem of load models has not been studied, that is whether the parameters of a model can be identified from a specified input-output experiment. Here, a study is made of the identifiability of electric load models, and the basic concepts and definitions are introduced. Structural identifi... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Use of a saturating choke in the series capacitor compensation of distribution lines

    Publication Year: 1997, Page(s):75 - 79
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (544 KB)

    Series capacitors can increase the power carrying capacity of subtransmission and distribution lines by reducing voltage regulation. When considering series capacitor compensation of distribution lines and subtransmission lines careful consideration needs to be given to capacitor location, ferroresonance, ohmic reactive value, transient behaviour, short circuit withstand and capacitor protection. ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Robust decentralised design for multiple FACTS damping controllers

    Publication Year: 1997, Page(s):61 - 67
    Cited by:  Papers (18)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (628 KB)

    A systematic robust decentralised design procedure based on the H -optimisation technique for tuning multiple FACTS devices is presented. The design procedure uses a model-matching robustness formulation and requires the design of a parameter to achieve decentralised control. The approach is used to design damping controllers for an SVC and a TCSC to enhance the damping of the in... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Earthing effects of coated underground cables with metallic shields bonded to earth electrodes

    Publication Year: 1997, Page(s):26 - 30
    Cited by:  Papers (7)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (352 KB)

    Relatively simple expressions are derived for assessing the earthing effects of coated MV underground power cables with metallic shields (protective conductors) connected to source, and consumers' transformer substations' earth electrodes including the transferred potentials and touch and step voltages. The analysis performed for typical sample cases has shown that such cables might substantially ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Composite system adequacy assessment using sequential Monte Carlo simulation with variance reduction techniques [power networks]

    Publication Year: 1997, Page(s):1 - 6
    Cited by:  Papers (17)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (532 KB)

    Estimation of composite power system adequacy indices using sequential Monte Carlo simulation approach with time-varying loads at each load bus is computationally quite expensive. Variance reduction techniques can be used together with the sequential simulation process to enhance the efficiency of the simulation. The paper discusses two commonly used techniques, control variates and antithetic var... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Simultaneous stabilisation of power systems using genetic algorithms

    Publication Year: 1997, Page(s):39 - 44
    Cited by:  Papers (16)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (552 KB)

    The paper considers the simultaneous stabilisation of a power system over a wide range of operating conditions via a single power system stabiliser using genetic algorithms. A power system operating at various load levels is treated as a finite set of plants. The problem of selecting the parameters of a power system stabiliser which simultaneously stabilises this set of plants is converted to a si... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • AC circuit breakers: pollution flashover performance of various types of interrupter head

    Publication Year: 1997, Page(s):50 - 56
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (628 KB)

    The axial electric stress necessary to cause external flashover of the interrupter porcelain of various designs of circuit breaker has been determined as a function of the severity of an artificial salt fog; related investigations have been conducted at a marine testing station. The much inferior performance of the horizontal head to that of the vertical one is explained by using a simple mathemat... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Short-term load forecasting for demand side management

    Publication Year: 1997, Page(s):68 - 74
    Cited by:  Papers (12)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (588 KB)

    A method for short-term load forecasting which would help demand side management is presented. This is particularly suitable for developing countries where the total load is not large, especially at substation levels, and the data available are grossly inadequate. It is based on the Kalman filtering algorithm with the incorporation of a `fading memory'. A two-stage forecast is carried out, where t... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Dynamic modelling of a unified power flow controller

    Publication Year: 1997, Page(s):7 - 12
    Cited by:  Papers (20)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (572 KB)

    A method to regulate the unified power flow controller (UPFC) to improve the dynamic performance of power systems is proposed in the paper. The series voltage responds to the power variations of the transmission line, while the shunt compensation is controlled to maintain the power system bus voltage and to stabilise the DC link of the UPFC. Decoupled control algorithms for active and reactive pow... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Role of cooling fins in circuit breakers

    Publication Year: 1997, Page(s):57 - 60
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (328 KB)

    The effects of adding cooling fins to an auto-expansion SF6 circuit-breaker chamber are investigated. It is found that they reduce considerably the post-recovery current. An indirect effect of the reduction in dissipated energy on arc voltage further increases the usefulness of the fins View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Application of Kalman filtering for continuous real-time tracking of power system harmonics

    Publication Year: 1997, Page(s):13 - 20
    Cited by:  Papers (25)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (672 KB)

    The paper describes a unit based on an 8-bit microprocessor which enables continuous real-time tracking of the harmonics in the voltage or current waveforms of a power system. The unit is part of a distributed system for monitoring and controlling a power system which applies a 12-state Kalman filter to the voltage or current samples to obtain, in real-time, the instantaneous values for a maximum ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Parametric harmonic analysis [of power systems]

    Publication Year: 1997, Page(s):21 - 25
    Cited by:  Papers (25)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (552 KB)

    Harmonics in power systems is now a subject of wide ramifications. One particular aspect is that of capturing harmonic data at selected locations in a power network and processing it identify to harmonics and to quantify their magnitudes and arguments. Circumstances are encountered in practice for which the discrete Fourier transform (DFT) cannot be relied on to achieve valid harmonic component id... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.