The library of SuperLU_MT based on the use of the super node LU decomposition block algorithm

column elimination trees

multi-core and multi-threaded parallel computing theory

is used to develop electric power system state estimation. To achieve acceleration

the interface of SuperLU_MT is called mainly in the solution of the iterative equation

the bad data detection and identification. The validity of the algorithm is verified by the Institute of Electrical and Electronic Engineers(IEEE)test power system and an actual power system

which indicates that the parallel sparse system direct solver library is suitable for state estimation of power systems. It will significantly reduce state estimation computation time on multicore computers.