A voltage stability probability assessment method based on scene partitioning and semi-invariant
A semi-invariant, voltage-stable technology, applied in the field of voltage stability probability evaluation based on scene partition and semi-invariant, can solve problems such as poor linearity, reduced solution accuracy of semi-invariant method, and increased linearization error.
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[0096] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0097] The invention discloses a voltage stability probability evaluation method based on scene partition and semi-invariant, and belongs to the technical field of static voltage stability analysis and control of electric power system. The present invention considers the impact of large fluctuations in renewable energy output on the calculation accuracy of the conventional semi-invariant method, and proposes a voltage stability evaluation method that takes into account the randomness of renewable energy output. The idea is as follows: first, the probability of each random variable The density funct...
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