Abstract: Provided is a system and method that can safely generate and execute an outage plan for a power grid based on severe weather-driven events. In one example, the method may include receiving predicted or current operational power system state data from a power grid and weather conditions associated with the power grid, identifying one or more nodes on the power grid to de-energize based on the operational state data and the current weather conditions, determining a sequence of instructions to perform to de-energize the one or more identified nodes based on the operational state data and the current weather conditions associated with the power grid, and generating an outage plan including mitigation steps for ensuring the stability and security of the power grid which includes the determined sequence of instructions to be executed and store the outage plan in the memory.

Abstract: Provided is a system and method that can determine the timing and sequence of transmission assets on a power grid to be outaged and/or restored based on severe weather. In one example, the method may include selecting a group of transmission assets of a power grid for outage, receiving forecasted weather conditions for a geospatial area that includes the group of transmission assets, determining an outage time and priority among the group of transmission assets based on geospatial locations of the forecasted weather conditions and geospatial locations of the group of transmission assets, and generating a sequence of instructions for powering down the group of transmission assets based on the determined outage time and priority among the group of transmission assets and storing the sequence of instructions in memory.

Abstract: This disclosure relates to systems and methods for real-time electrical power grid restorations. An example system may include a real-time monitoring module configured to acquire operational data associated with electrical grid components of an electrical grid. The system may further include a restoration manager module configured to detect, based on the operational data, one or more unplanned outages or other events in the electrical grid. In response to the detection, the restoration manager module can analyze the operational data to determine or select from a database a restoration plan. The restoration plan can include operations associated with commands for control devices, wherein the control devices are operable to control a power transmission between the electrical grid components. The restoration manager module can be further configured to execute the one or more operations of the restoration plan to restore the electrical power grid to a normal operational state.

Abstract: This disclosure relates to systems and methods for estimation of electrical grid parameters. An example system may include a data acquisition module configured to acquire electrical parameters. The electrical parameters can be measured at electrical components of the electrical grid. The electrical components may include at least one transmission line and at least one transformer. The system may include a parameter estimation module configured to analyze the electrical parameters to estimate impedance parameters associated with the electrical components and provide, via a user interface, at least one indication regarding the impedance parameters. The system may further include a line sagging detection module configured to estimate, based on the impedance parameters, at least one line sagging parameter indicative of sagging of the transmission line. The line sagging detection module can be further configured to output at least one indication regarding the sagging of the at least one transmission line.

Abstract: In example embodiments, there is provided enhanced disturbance management for an electrical power system. An enhanced disturbance management component can be operable to read monitoring data based on power flow measurements associated with measurement devices connected to an electrical power system, wherein the monitoring data can comprise alarm data indicative of an electrical disturbance within the electrical power system, and topology data indicative of a topology of the electrical power system. The enhanced disturbance management component can be operable to correlating the alarm data with a change in the topology data.

Abstract: This disclosure relates to systems and methods for real-time electrical power grid restorations. An example system may include a real-time monitoring module configured to acquire operational data associated with electrical grid components of an electrical grid. The system may further include a restoration manager module configured to detect, based on the operational data, one or more unplanned outages or other events in the electrical grid. In response to the detection, the restoration manager module can analyze the operational data to determine or select from a database a restoration plan. The restoration plan can include operations associated with commands for control devices, wherein the control devices are operable to control a power transmission between the electrical grid components. The restoration manager module can be further configured to execute the one or more operations of the restoration plan to restore the electrical power grid to a normal operational state.

Abstract: This disclosure relates to systems and methods for estimation of electrical grid parameters. An example system may include a data acquisition module configured to acquire electrical parameters. The electrical parameters can be measured at electrical components of the electrical grid. The electrical components may include at least one transmission line and at least one transformer. The system may include a parameter estimation module configured to analyze the electrical parameters to estimate impedance parameters associated with the electrical components and provide, via a user interface, at least one indication regarding the impedance parameters. The system may further include a line sagging detection module configured to estimate, based on the impedance parameters, at least one line sagging parameter indicative of sagging of the transmission line. The line sagging detection module can be further configured to output at least one indication regarding the sagging of the at least one transmission line.

Abstract: The technology is generally directed towards real-time power grid island detection and monitoring, including obtaining and outputting information about the cause and location of the islanding event, island size, island composition, phasor measurement units in each island, and the overall island frequency. The technology provides for suggested island resynchronization actions such as one or more circuit breakers that can be closed by the power grid system operators to resynchronize an island with the main island/system. An application program may output the information and also assist the operators during the resynchronization process by providing real time information about the voltage difference and frequency difference across each proposed circuit breaker in the suggested restoration point. Real-time tracking of the island resynchronization actions is also described.

Abstract: In example embodiments, there is provided enhanced disturbance management for an electrical power system. An enhanced disturbance management component can be operable to read monitoring data based on power flow measurements associated with measurement devices connected to an electrical power system, wherein the monitoring data can comprise alarm data indicative of an electrical disturbance within the electrical power system, and topology data indicative of a topology of the electrical power system. The enhanced disturbance management component can be operable to correlating the alarm data with a change in the topology data.

Abstract: Systems and methods for analyzing performance of a power grid monitor are disclosed herein. In one embodiment, a method includes receiving test data from a test power grid monitor coupled to a power grid signal source and receiving reference data from a reference power grid monitor coupled to the same power grid signal source. The method also includes identifying a power grid condition based on the received test data and/or reference data, extracting a subset of the test data and a subset of the reference data corresponding to the identified power grid condition, and comparing the subset of the test data to the subset of the reference data to determine a measurement accuracy of the test power grid monitor.

Abstract: The technology is generally directed towards real-time power grid island detection and monitoring, including obtaining and outputting information about the cause and location of the islanding event, island size, island composition, phasor measurement units in each island, and the overall island frequency. The technology provides for suggested island resynchronization actions such as one or more circuit breakers that can be closed by the power grid system operators to resynchronize an island with the main island/system. An application program may output the information and also assist the operators during the resynchronization process by providing real time information about the voltage difference and frequency difference across each proposed circuit breaker in the suggested restoration point. Real-time tracking of the island resynchronization actions is also described.

Abstract: Systems and methods for voltage stability monitoring in power systems are disclosed herein. In one embodiment, a method includes receiving data representing a set of system parameters of a power system having one or more power buses under a load condition. The method also includes estimating one or more sets of the system parameters under one or more additional load conditions based on the received data and topology information of the power system. The method further includes determining a voltage stability index for the power system based on both the received set of system parameters and the estimated one or more sets of the system parameters.

Abstract: Disclosed herein are various systems and methods for monitoring the health of a circuit breaker. In various embodiments, a system may receive a voltage measurement across a trip coil assembly associated with a circuit breaker. The system may further receive a current measurement through the trip coil assembly. A plurality of transition points may be identified based on at least one of the voltage measurement and the current measurement, the plurality of transition points corresponding to at least one of a mechanical characteristic and an electrical characteristic of the circuit breaker during a trip event. A predictive analysis may be performed based at least in part on the plurality of transition points. An indication of the predictive health may be displayed.

Abstract: The embodiments provide for a method and system of automated online control of a power system's voltage stability or even provide quick suggestions for fast decision support to the system operators to ensure a desired voltage stable system when needed. An example embodiment includes estimating data representing system parameters of a power system; non-iteratively determining a voltage stability index for each bus in the power system based on the estimated and received data sets; monitoring the voltage stability index for each bus so as to compare a computed voltage stability index for each bus to a predetermined voltage stability index threshold; and activating a voltage stability control mode resultant from the comparison of the computed voltage stability index for each bus to the predetermined voltage stability index threshold, wherein the voltage stability control mode is selected from: a normal mode of operation and an emergency mode of operation.

Abstract: Systems and methods for analyzing performance of a power grid monitor are disclosed herein. In one embodiment, a method includes receiving test data from a test power grid monitor coupled to a power grid signal source and receiving reference data from a reference power grid monitor coupled to the same power grid signal source. The method also includes identifying a power grid condition based on the received test data and/or reference data, extracting a subset of the test data and a subset of the reference data corresponding to the identified power grid condition, and comparing the subset of the test data to the subset of the reference data to determine a measurement accuracy of the test power grid monitor.

Abstract: Disclosed herein are various systems and methods for monitoring the health of a circuit breaker. In various embodiments, a system may receive a voltage measurement across a trip coil assembly associated with a circuit breaker. The system may further receive a current measurement through the trip coil assembly. A plurality of transition points may be identified based on at least one of the voltage measurement and the current measurement, the plurality of transition points corresponding to at least one of a mechanical characteristic and an electrical characteristic of the circuit breaker during a trip event. A predictive analysis may be performed based at least in part on the plurality of transition points. An indication of the predictive health may be displayed.

Abstract: Systems and methods for voltage stability monitoring in power systems are disclosed herein. In one embodiment, a method includes receiving data representing a set of system parameters of a power system having one or more power buses under a load condition. The method also includes estimating one or more sets of the system parameters under one or more additional load conditions based on the received data and topology information of the power system. The method further includes determining a voltage stability index for the power system based on both the received set of system parameters and the estimated one or more sets of the system parameters.