Probability distribution-based distribution network reliability judgment method
A technology of probability distribution and probability density distribution, which is applied in the field of distribution network reliability judgment, can solve the problems of unobtained probability distribution of reliability indicators, difficulty in probability distribution, and inability to grasp the change law of system operation risk from a macro perspective.
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[0073] The present invention regards the entire distribution network as an equivalent element from the perspective of the overall system, and proposes time to system failure (TTSF), time to system repair (TTSR), and system power failure. The frequency (SIF, system interruption frequency) indicator identifies the normal working time before a power outage in the distribution network, the power recovery time after a power outage, and the probability distribution law of the number of annual power outages from the system level. They are not only a useful supplement to the existing distribution network reliability index system, but also help researchers to grasp the change law of system operation risks in a macroscopic view.
[0074] The present invention is based on the idea of network partitioning and partitioning. Under the assumptions that both the component working time and repair time obey the exponential distribution, the component working time obeys the Weibull distribution, a...
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