Disturbance

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Revision as of 21:45, 16 April 2018 by Eluiijf (talk | contribs) (NIST)
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Definitions

European Definitions

National Definitions

Canada

AESO
Disturbance(power grid) means an unplanned event which produces an abnormal system condition or the effects experienced by a power system following a contingency, such as high or low frequency, abnormal voltage, or oscillations in the system. [1]


Finland

Häiriötilanne: Uhka tai tapahtuma, joka vaarantaa yhteiskunnan turvallisuutta, toimintakykyä tai väestön elinmahdollisuuksia ja jonka hallinta edellyttää viranomaisten ja muiden toimijoiden tavanomaista laajempaa tai tiiviimpää yhteistoimintaa ja viestintää. [2]

Disturbance is a threat or an occurrence which endangers security in society, capacity to act or the population’s living conditions. Co-operation and communication of the authorities and other actors on a wider or more intensive scale are needed to manage the situation [3]



United States

NIST
Disturbance: An undesired change in a variable being applied to a system that tends to adversely affect the value of a controlled variable. (from: NIST SP 800-82 Rev. 2) [4]


NERC
Disturbance: 1. An unplanned event that produces an abnormal system condition.
2. Any perturbation to the electric system.
3. The unexpected change in ACE that is caused by the sudden failure of generation or interruption of load. [5]


See also

Notes