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With the cross regional interconnection of the power grid, it is more and more inconsistent with the actual development of the power grid to use a single sandpile to simulate the power grid. The multi-sandpile model is developed to simulate the evolution process of the whole power grid failure in the form of all the single sandpiles evolving synchronously. First of all, the modeling method of multi-sandpile...
According to the application of cellular automata theory in complex system, a new kind of cellular automata model of grid failure is proposed which starts from basic concept of cellular automata and defines the composition method of cell, cellular rules and neighbors and so on. By simulation of the model, it is able to get the evolution of grid failure and it comprehensively considers of structural...
The traditional reliability evaluation assesses the long-term performance of power system but its constant failure rate cannot reflect the time-varying performances in an operational time frame. This paper studies the operational reliability of power system in the real-time operating conditions based on online operation information obtained from the Energy Management System (EMS). A framework of operational...
The performance of a power system in an operational time frame can be evaluated by the short-term reliability assessment. The component reliability model usually uses exponential distribution for the repair time because of its simplicity. However, this assumption may lead to the inaccuracy in evaluation results, especially large errors in short-term evaluation. Therefore, the non-exponential distribution...
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