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IEE Proceedings C - Generation, Transmission and Distribution

Issue 5 • Date September 1981

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Displaying Results 1 - 8 of 8
  • Control policies for wind-energy conversion systems

    Publication Year: 1981, Page(s):253 - 261
    Cited by:  Papers (28)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1049 KB)

    Wind energy is usually converted into electrical energy through a wind rotor driving a generator. It is well known that maximum conversion efficiency occurs when the wind rotor is loaded in such a way that its rotational speed is allowed to fluctuate in sympathy with wind-speed variations. In the paper, the wind-rotor/generator dynamics are investigated for a number of control policies, and it is ... View full abstract»

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  • Identification of coherent generators using frequency response

    Publication Year: 1981, Page(s):262 - 268
    Cited by:  Papers (6)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (734 KB)

    The paper presents a new method for identifying coherent generators under various power-system disturbances. A coherency index, which is introduced by using frequency response of the simplified and linearised power-system model, is proposed for evaluating coherent generators. The method is applied to a power system constructed with ten machines and 39 busbars, and the efficiency of the method is i... View full abstract»

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  • Book review: Piecewise Methods and Applications to Power Systems

    Publication Year: 1981
    IEEE is not the copyright holder of this material | PDF file iconPDF (154 KB)
    Freely Available from IEEE
  • Automatic generation control of interconnected power systems using variable-structure controllers

    Publication Year: 1981, Page(s):269 - 279
    Cited by:  Papers (28)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (961 KB)

    The paper presents a new technique for the automatic generation control of interconnected power systems. The proposed technique is devoloped for designing the controllers, using the theory of variable-structure systems. A special feature of the variable-structure controllers is that they can greatly improve the transient performance of the system, while keeping the steady-state error at zero. In a... View full abstract»

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  • Probabilistic load flow using multilinearisations

    Publication Year: 1981, Page(s):280 - 287
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (965 KB)

    Probabilistic load flow is a technique which recognises the probabilistic nature of the input parameters and takes account of the uncertainties and random variations of generation and load within one computer run. Many formulations have been presented to implement this technique. The majority have assumed either, a linear model to represent the load flow equations, or the output random variables t... View full abstract»

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  • Solution of optimal load flow problem by modified recursive quadratic-programming method

    Publication Year: 1981, Page(s):288 - 294
    Cited by:  Papers (5)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (881 KB)

    A computational algorithm is discussed, which is based on the modified recursive quadratic-programming method and is suitable for the solution of the optimal load flow problem. Efficiency of the algorithm is verified by solving several test problems including optimal load flow test problems associated with the 5-, 14-, 23-, and 57-bus power systems View full abstract»

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  • Probabilistic approach for power system dynamic stability studies

    Publication Year: 1981, Page(s):295 - 301
    Cited by:  Papers (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (646 KB)

    In the paper, the nondeterministic nature of electric-power-system parameters has been taken into account to draw stability limit curves on a capability chart. The results look interesting, from a practical point of view, and show that a deterministic model is unrealistic when the system is operating near its dynamic stability limit. In this case, a probabilistic approach is the most feasible alte... View full abstract»

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  • Polyphase distance protection characteristics

    Publication Year: 1981, Page(s):302 - 316
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1717 KB)

    The paper considers the steady-state performance of existing schemes of polyphase distance protection for high-voltage systems and introduces new polyphase schemes for phase and earth-fault protection. Differences in the performance of various schemes are highlighted and a comparison is given for close-up faults and zone 1 boundary faults. A new approach is suggested to assess the high-speed tripp... View full abstract»

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