Partition method and device for power system

A partition device for a power system, comprising:

• a first obtaining module, configured to obtain a quasi-steady sensitivity matrix according to generators participating in automatic voltage control and load buses in the power system;
• a second obtaining module, configured to obtain a power system model according to the quasi-steady sensitivity matrix and the load buses;
• a first determining module, configured to determine principal component vectors and principal component singular values according to the power system model;
• a second determining module, configured to determine a principal component vector dominated by each generator according to the principal component vectors and the principal component singular values;
• a partitioning module, configured to partition the generators dominating a same principal component vector to a partition, and to partition the load buses according to a partition result for the generators.

A non-transitory computer-readable storage medium having stored therein instructions, when executed by a computer, to perform a partition method for a power system, wherein the partition method comprises steps of:

• obtaining a quasi-steady sensitivity matrix according to generators participating in automatic voltage control and load buses in the power system;
• obtaining a power system model according to the quasi-steady sensitivity matrix and the load buses;
• determining principal component vectors and principal component singular values according to the power system model;
• determining a principal component vector dominated by each generator according to the principal component vectors and the principal component singular values;
• and
• partitioning the generators dominating a same principal component vector to a partition, and partitioning the load buses according to a partition result for the generators.