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IEE Proceedings C - Generation, Transmission and Distribution

Issue 5 • Date Sept. 1990

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Displaying Results 1 - 7 of 7
  • Ranking and postponement of investments in planning the Serbian electric power networks

    Publication Year: 1990, Page(s):321 - 326
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (582 KB)

    A method for ranking and postponing investments during the planning of electrical power networks is presented. The probabilistic economic criterion which takes into consideration the cost of expected undelivered energy is used to derive a profitability index, a postponement index and combined technical-economical-probabilistic planning criteria. The method allows the ranking and the postponement o... View full abstract»

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  • Steam turbine generator shaft torque transients: a comparison of simulated and test results

    Publication Year: 1990, Page(s):327 - 334
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (696 KB)

    If the electrical system of a turbine generator is subjected to a fault or disturbance condition, large mechanical torques may be induced in the turbine shafts. The computer prediction of such torsional behaviour has become an important feature of system design and appraisal. Simulation results are presented for two different operating conditions: malsynchronisation and load rejection. Comparisons... View full abstract»

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  • Decomposed numerical observability investigation suitable for parallel processor implementation

    Publication Year: 1990, Page(s):335 - 338
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (340 KB)

    A problem associated with numerical observability analysis in power systems is the computing time required. A new approach, to overcome this problem, is presented. The basis of the approach is the decomposition of the system into subsystems. The system Jacobian matrix is decomposed into reduced-order submatrices. It was found that the global rank test on the Jacobian matrix is equivalent to rank t... View full abstract»

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  • Restriction of turbine blade vibrations in turbogenerators

    Publication Year: 1990, Page(s):339 - 342
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (330 KB)

    A method for determining the effect and severity of turbine blade vibrations when subjected to balanced and unbalanced disturbance conditions is presented. An evaluation of severity is made using the index power spectrum density method and the results of representative studies are included to illustrate the effectiveness of the procedures adopted. Recommendations are made to depress blade vibratio... View full abstract»

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  • Hydroelectric power in the USSR: historical development

    Publication Year: 1990, Page(s):343 - 348
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (670 KB)

    The historical development of the Soviet electricity supply network and, in particular, the part played to hydroelectric power is described. The underlying philosophy behind, and the role of the Soviet five year plans in, the growth of installed hydroelectric capacity is explained. The changes in approach to the exploitation of water resources are discussed and recent moves by the USSR towards a m... View full abstract»

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  • Operating reserve and reliability analysis of the Taiwan power system

    Publication Year: 1990, Page(s):349 - 357
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (805 KB)

    A probabilistic approach to examining the effect of operating reserve on the reliability and security of the Taiwan power system is developed. To evaluate the probability of failure to carry load in system operation, an extension of the original PJM (Pennsylvania-New Jersey-Maryland) method is presented. System security is analysed using the reliable emergency output power (REOP) index. The propos... View full abstract»

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  • New approach for simulating an energy limited hydro unit

    Publication Year: 1990, Page(s):359 - 363
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (494 KB)

    It is a requirement of optimal production cost scheduling to allocate all of the assigned energy to an energy limited (EL) hydro unit. The authors present a methodology for the probabilistic simulation of the EL unit incorporating the randomness in the water head. The methodology utilises the concept of the multistate model of a generating unit to represent an EL unit with the randomness in the av... View full abstract»

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