Performance analysis of power grid monitors

A computing system, comprising:

• a processor and a memory operative coupled to the processor, the memory containing instructions that when executed by the processor, cause the processor to perform a process include:
• receiving test data from a test power grid monitor and reference data from a reference power grid monitor both coupled to a power grid signal source, the test data and the reference data individually including a plurality of data points with associated time stamps;
• aligning the test data with the reference data based on the time stamps;
• extracting a subset of the test data and a subset of the reference data corresponding to a power grid condition;
• and
• determining an error of the subset of the test data in comparison to the subset of the reference data.

A method performed by a computing system having a processor, the method comprising:

• with the processor,
• receiving test data from a test phasor measurement unit receiving input from a power grid signal source and reference data from a reference phasor measurement unit receiving input from the same power grid signal source;
• monitoring a power grid condition based on the received test data and/or reference data, the power grid condition including at least one of a steady state condition or a dynamic condition and corresponding to a subset of the test data and the reference data;
• determining a deviation between the subset of test data and reference data;
• comparing the determined deviation to a threshold;
• and
• in response to the determined deviation being less than the threshold, indicating the test phasor measurement unit as accurate.