Multi-ended impedance-based fault locating for untransposed transmission lines

A system, comprising:

• a set of sensors configured to acquire electrical measurements associated with a loop within a power network;
• and
• one or more processors configured to:
• monitor the electrical measurements associated with the loop within the power network via the set of sensors, wherein the electrical measurements comprise current measurements, voltage measurements, or both associated with the loop;
• receive an indication of a presence of a fault;
• determine a first sequence mutual coupling parameter based on the electrical measurements, wherein the first sequence mutual coupling parameter indicates a mutual coupling of a positive sequence of the power network to a negative sequence of the power network;
• determine a second sequence mutual coupling parameter based on the electrical measurements, wherein the second sequence mutual coupling parameter indicates a mutual coupling of a zero sequence of the power network to the negative sequence of the power network;
• determine a location of the fault based on the indication of the presence of the fault, the first sequence mutual coupling parameter, and the second sequence mutual coupling parameter;
• and
• send one or more commands to one or more devices to adjust one or more operations based on the location of the fault.

A non-transitory computer-readable medium comprising computer-executable instructions that, when executed, are configured to cause at one or more processors to perform operations comprising:

• monitoring electrical measurements associated with a loop within a power network from a set of sensors, wherein the electrical measurements comprise current measurements, voltage measurements, or both associated with the loop;
• receiving an indication of a presence of a fault in the power network;
• determining, via the one or more processors, a first sequence mutual coupling parameter based on the electrical measurements, wherein the first sequence mutual coupling parameter indicates a mutual coupling of a positive sequence of the power network to a negative sequence of the power network;
• determining a second sequence mutual coupling parameter based on the electrical measurements, wherein the second sequence mutual coupling parameter indicates a mutual coupling of a zero sequence of the power network to the negative sequence of the power network;
• determining a fault location based on the indication of the presence of the fault, the first sequence mutual coupling parameter, and the second sequence mutual coupling parameter, and
• sending one or more commands to one or more devices to adjust one or more operations based on the fault location.