Abstract:

Abstract:The nature of reliability assessment for power system is to quantize the electrical adequacy of a single node.It is equivalent to do
convolution operation between the two random variables:the power generation capacity and the load.However,the operation units need to be determined whether they are off sequence when doing the convolution between the outage tables,and that makes the complex arithmetic
logic even more complex after adding the determinant logic.This paper proposed a method that can avoid the discrimination of off sequence to improve the outage table: pretreatment of zero injecting.It also proved the recursive convolution would be more efficient after the pretreatment of zeroinjecting by using the actual example.This pretreatment method for the outage table provided an idea to simplify the program logic and reduce the computation,which has certain guiding effects on the reliability assessment for power system.

Key words: Keywords:reliability assessment, recursive convolution, the outage table, pretreatment of zero injecting