POWER DISTRIBUTION NETWORK RISK CONTROL METHOD IN TYPHOON SCENARIO

摘要

A power distribution network risk control method in a typhoon scenario. The method comprises: firstly, in consideration of a typhoon forecast error, giving the wind speed of a typhoon in the form of an interval; through a Monte Carlo sampling process, using an interval analysis method to obtain the load loss and the economic loss of a power distribution network before typhoon landing, wherein a failure rate of an electric pole is decided by the relationship between the wind speed of the typhoon and the strength of the electric pole and by taking the actual operating state of the electric pole into consideration; secondly, in consideration of the fault frequency and the load importance degree of a line, recognizing a weak link of an overhead line on the basis of an analytic hierarchy process; and finally, giving a multi-step emergency material allocation method, and allocating emergency materials according to real-time weak link positioning results 24 hours and 72 hours before the typhoon. By means of the method, emergency materials can be more effectively allocated, thereby further reducing the load loss and the economic loss of a power distribution network after a typhoon has passed by; and the method has a certain guiding significance and a certain theoretical reference value for windproof and typhoon-resistant work in coastal areas.