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Journal ArticleDOI

Considerations Affecting the Design Philosophy of Solid-State Exciters

01 May 1968-IEEE Transactions on Power Apparatus and Systems (IEEE)-Vol. 87, Iss: 5, pp 1288-1299
TL;DR: In this article, the application of thyristor converters to the excitation of large generators as shunt connected solid-state exciters is described and some important exciter design details are given.
Abstract: The application of thyristor converters to the excitation of large generators as shunt connected solid-state exciters is described. Considerations important during the planning stage are discussed and some important exciter design details are given. The importance of the topic, control of power system stability by adjustment of generator excitation, is highlighted by reference to many other papers.
Citations
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Journal ArticleDOI
TL;DR: In this paper, the role of computers and modern control methods and techniques in optimal scheduling of generation, on-line security assessment, centralized control of voltage and reactive power and active power dispatching is outlined.

16 citations

Journal ArticleDOI
TL;DR: In this article, brushless thyristor excitation systems for large synchronous generators are described, and the electrical and mechanical advantages of such systems are discussed, as well as the results of a digital computer comparison with other forms of excitation.
Abstract: This paper shows how brushless thyristor excitation systems for large synchronous generators are being evolved in the authors' organisation, outlines the electrical and mechanical advantages that accrue, and includes some results of a digital computer comparison of such systems with other forms of excitation.

16 citations

01 Jan 2017
TL;DR: The grid code, FIKS, from the Norwegian transmission system operator (TSO), Statnett, states that synchronous generators > 25MVA, must have a static excitation system as mentioned in this paper.
Abstract: The grid code, FIKS, from the Norwegian transmission system operator (TSO), Statnett, states that synchronous generators > 25MVA, must have a static excitation system However, an improved brush

7 citations


Cites background from "Considerations Affecting the Design..."

  • ...With six firing pulses per electrical period, the maximum time delay in the voltage response is [10]...

    [...]

DOI
17 Mar 2022
TL;DR: In this article , the authors defined elements and commonly used components in excitation systems and defined the definition of excitation control systems applied to synchronous machines, and presented one-line block diagrams of typical excitation system.
Abstract: Defined in this standard are elements and commonly used components in excitation systems. Also contained are definitions for excitation systems applied to synchronous machines. An included annex contains one-line block diagrams of some typical excitation systems. These are presented to illustrate the defined terminology referenced in this standard and clarify the understanding of the excitation control system.

6 citations

References
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Journal ArticleDOI
TL;DR: In this paper, a device to provide a signal proportional to changes in generator speed has been developed by Ontario Hydro and field tests have been performed to demonstrate that use of this signal with a high-speed rectifier excitation system results in dynamic stability limits which approximate those which can be obtained with a zero reactance generator.
Abstract: A device to provide a signal proportional to changes in generator speed has been developed by Ontario Hydro. Field tests have been performed to demonstrate that use of this signal with a high-speed rectifier excitation system results in dynamic stability limits which approximate those which can be obtained with a zero reactance generator. Transient stability limits are greater than those obtainable with high-response conventional excitation systems. Results from the field tests and a computer study are compared.

111 citations

Journal ArticleDOI
TL;DR: In this paper, the transient and dynamic stability of the Peace River 500kV transmission system was studied with a new digital computer program, which included direct and quadrature machine axes, saturation, excitation, and governing systems.
Abstract: The transient and dynamic stability of the Peace River 500-kV transmission system was studied with a new digital computer program. The detailed representation included direct and quadrature machine axes, saturation, excitation, and governing systems. Stability is maintained following faults by employing a braking resistor and additional stabilizing signal to the generator excitation system.

99 citations

Journal ArticleDOI
TL;DR: In this paper, the influence of generator voltage regulators on powerline stability is closely scrutinized by analog techniques and it is shown that high-speed control of excitation to maintain constant terminal voltage actually hampers rather than aids damping and power line stability.
Abstract: The influence of generator voltage regulators upon powerline stability is closely scrutinized by analog techniques. Contrary to common concepts, it is shown that high-speed control of excitation to maintain constant terminal voltage actually hampers rather than aids damping and powerline stability. It is further shown that damping and stability are greatly improved by supplementing excitation control with a specially derived function of frequency deviation. Results of the studies are verified in actual performance obtained in field tests.

92 citations

Journal ArticleDOI
TL;DR: In this article, power oscillations have occurred between the interconnected utility systems of Saskatchewan, Manitoba, and Ontario (West System), such power swings have been most evident when the power transmission angles on the interconnections or on certain internal 138kV and 115-kV transmission have been of relatively great magnitude.
Abstract: Intersystem power oscillations have occurred between the interconnected utility systems of Saskatchewan, Manitoba, and Ontario (West System). Such power swings have been most evident when the power transmission angles on the interconnections or on certain internal 138-kV and 115-kV transmission have been of relatively great magnitude. The oscillations have been controlled or reduced by adjustment of the excitation of speed control parameters on various groups of machines throughout the three inter- connected systems. The analytical techniques utilized to determine the adjustments will be of considerable benefit in planning future exrtensions to the interconnections and facilities within the power systems in the three provinces.

56 citations

Journal ArticleDOI
TL;DR: In this article, a 100-machine transient stability program has been developed which represents the effects of machines much more completely than has been available previously, including both d-and q-axis quantities.
Abstract: A 100-machine transient stability program has been developed which represents the effects of machines much more completely than has been available previously. Both d-and q-axis quantities are fully represented and saturation effects in both axes are incorporated. The speed-governing and voltage-regulating systems available are extensive and complete, thus allowing a very close approximation to any physical system. Facilities for nonlinear loads and induction motor transients are also included.

46 citations