Power grid timing sequence recovery optimization method of considering potential damage probability of elements

Abstract

The invention discloses a power grid timing sequence recovery optimization method of considering potential damage probability of elements. According to the method, power grid recovery is carried out by a timing sequence recovery strategy aiming at the problem that a natural disaster can cause a widespread power failure and bring a potential damage to a power element. Within each recovery time frame, unit startup sequence optimization and path recovery sequence optimization are carried out step by step. In the first step, the unit startup sequence is optimized employing the maximum system generating capacity within the power grid recovery time as the target; and in the second step, the path recovery sequence is optimized, and transmission component damage probability model and recovery time model are built. The unit startup sequence optimization in the first step and the path recovery sequence optimization in the second step are associated with each other through path operation time, so that consistency optimization of two targets is effectively achieved. The power grid timing sequence recovery optimization method considers the potential damage probability conditions, with different degrees, of transmission components such as a circuit and a transformer, and simultaneously forms a power grid recovery scheme of a timing sequence to guide practice, so that the method has higher practical significance.

Description

technical field [0001] The invention belongs to the field of power system security defense and recovery control, and in particular relates to a power grid timing recovery optimization method considering the potential damage probability of components. Background technique [0002] The current power system recovery scheme mainly deals with the system collapse caused by short-circuit faults. At this time, although the power components are removed from the system, the components themselves are intact and can be put into operation quickly with dispatch instructions. In recent years, affected by natural disasters such as typhoons, ice disasters, tsunamis, and earthquakes, major power outages have occurred worldwide, causing serious economic losses and adverse social impacts. Major blackouts caused by natural disasters are often accompanied by potential damage to a large number of transmission components such as lines and transformers in the power system. At this time, the componen...

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Problems solved by technology

[0004] To sum up, most of the current research has not been able to take into account the potential damage of power transmission components such as lines and transformers to varying degrees. At the same time, it is best to arrange the specific network frame recovery strategy in a timely manner to guide practice.

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