Detecting state estimation network model data errors

A method for detecting state estimation network model static data errors, the method comprising:

• performing, with a computer processor, the following steps:
• locating a portion of a state estimation network model of a power system for which a state estimation algorithm does not converge;
• executing a modified state estimation algorithm on the portion to identify plausible static data errors therein, wherein the modified state estimation algorithm includes an augmented measurement set of the power system and the plausible static data errors include at least one static topology error, wherein the at least one static topology error is directed to components of the power system that do not change during operation of the power system including one or more incorrectly modeled transmission line connection locations, wherein the at least one static topology error is identified to an operator of the power system as an erroneous assumption in the state estimation network model regarding the presence or absence of a transmission line between two buses of the power system, wherein the augmented measurement set comprises a plurality of power flow pseudo-measurements each corresponding to a zero flow condition between two buses of the portion to model the transmission line being absent from between every one of a plurality of pairs of buses in the portion of the state estimation network model;
• and
• correcting the state estimation network model in response to the location of the at least one static topology error.

A method for detecting static data errors in a power system state estimation network model, the method comprising:

• performing, with a computer processor, the following steps:
• splitting the state estimation network model of a power system into a first plurality of partitions of the power system;
• executing a state estimation algorithm on each of the of partitions;
• identifying a partition of the power system for which the state estimation algorithm does not converge;
• splitting the identified partition into a second plurality of partitions of the power system;
• repeating the executing, identifying and splitting the identified partition until a resulting identified partition of the power system is smaller than a predefined number of nodes of the power system;
• examining the resulting identified partition to identify plausible static data errors therein, wherein the plausible static data errors include at least one static topology error, wherein the at least one static topology error is directed to components of the power system that do not change during operation of the power system including one or more incorrectly modeled transmission line connection locations, wherein the at least one static topology error is identified to an operator of the power system as an erroneous assumption in the state estimation network model regarding the presence or absence of a transmission line between two buses of the power system, wherein examining the resulting identified partition to identify plausible static data errors therein includes executing a modified state estimation algorithm on the resulting identified partition in which an augmented measurement set comprises a plurality of power flow pseudo-measurements that each correspond to a zero flow condition between a corresponding pair of buses to model the transmission line being absent between every one of a plurality of pairs of buses in the identified partition;
• and
• correcting the state estimation network model in response to the location of the at least one static topology error.