POWER PROTECTION AND REMEDIATION
Methods, systems, and apparatus for collect historical power consumption data and power consumption statistics for one or more locations and devices at the location to generate historical power consumption and health data (“historical data”). The historical data are used to develop and provide multiple different protection and monitoring functions. The system may be deployed within a single customer location, e.g., within a building or a plant, and local analytics are developed at the location. Alternatively, the system may be distributed among several locations for a particular customer or multiple different customers and include cloud-based analytics in addition to, or instead of, local analytics.
1 . A computer-implemented method implemented in a data processing apparatus, the method comprising:
for a power customer location that receives power from a power source, the power customer location including a plurality of electrical loads:
receiving, by a data processing apparatus, reporting data from each of a plurality of power management devices, each power management device coupled to a respective one of the electrical loads and providing power management for the electrical load;
wherein for each power management device the reporting data includes:
power characteristics as detected at the electrical load; and
a time at which the power characteristics were detected;
determining, by the data processing apparatus and from the reporting data, historical power characteristics for each electrical load indicative of power consumption when input power is within a nominal specification;
determining, based on the historical power characteristic, that an electrical load operation in a healthy state for a power management device is consuming power at a consumption level that is a precursor indicator of a malfunction state of the electrical load; and
generating, in response to the determination, an alert that describes that the electrical load of the load point may be experiencing a malfunction.
2 . The computer-implemented method of claim 1 , wherein:
receiving reporting data from each of the plurality of power management devices comprise receiving the reporting data for each of the plurality of power management devices during a reporting time period; and
determining from the reporting data, historical power characteristics for each electrical load indicative of power consumption when input power is within the nominal specification comprises determining from the reporting data and after the reporting time period the historical power characteristics for each electrical load.
3 . The computer-implemented method of claim 2 , further comprising:
providing, by data communication, the historical power characteristics to the respective power management devices; and
determining, after the reporting time period and based on the historical power characteristic, that an electrical load operating in a healthy state for a power management device is consuming power at a consumption level that is a precursor indicator of a malfunction state of the electrical load comprises:
for each of the plurality of power management devices:
monitoring, at the power management device, the input power at the electrical load and the power consumption at the electrical load; and
determining, by the power management device, whether the electrical load is consuming power at a consumption level that is not within a tolerance range of the historical power characteristics for the electrical load when the input power is within a nominal specification.
4 . The computer-implemented method of claim 3 , wherein determining, from the reporting data, historical power characteristics for each electrical load indicative of power consumption when input power is within a nominal specification comprises:
determining, for each of a plurality of power characteristics, each at corresponding times, an operational state of the electrical load at the corresponding time, the operational being one of a healthy state and a malfunction state;
determining, for the healthy state, a set of power characteristics that are indicative of the healthy operational state when input power is within the nominal specification; and
determining, from the set of power characteristics, a set of tolerance ranges for the set of power characteristics.
5 . The computer-implemented method of claim 4 , wherein determining that an electrical load for a power management device is consuming power at a consumption level that is not within a tolerance range of the historical power characteristics for the electrical load comprises determining the electrical load is consuming power at a consumption level that is outside the set of tolerance ranges that are indicative of the healthy operational state when input power is within a nominal specification.
6 . The computer-implemented method of claim 3 , wherein determining, from the reporting data, historical power characteristics for each electrical load indicative of power consumption when input power is within a nominal specification comprises:
determining, for each power characteristic of plurality of power characteristics and at each of a plurality of corresponding times, an operational state of the electrical load at the corresponding time, wherein the operational states include a healthy state and a malfunction state;
determining from the operational sates at the corresponding times, transitions from a healthy state to a malfunction state when input power is within a nominal specification, and a set of power characteristics at corresponding times for the transitions, the corresponding times for each transition including corresponding times before the transition and corresponding times after the transition;
determining, for each transition from a healthy state to a malfunction state, whether the power characteristics of the corresponding times of the transition are indicative of the transition; and
determining the tolerance ranges for the set of power characteristics based on the power characteristics that are determined to be indicative of the transitions.
7 . The computer-implemented method of claim 6 , wherein determining, for each transition from a healthy state to a malfunction state, whether the power characteristic are indicative of the transition comprises:
comparing power characteristics of the corresponding times of the transitions to each other; and
determining that power characteristics that have a positive correlation with transitions from a healthy state to a malfunction state are indicative of the transition.
8 . The computer-implemented method of claim 6 , wherein the power characteristics describe one or more voltage and current conditions for the electrical load.
9 . The computer-implemented method of claim 6 , wherein the power characteristics describe one or more environmental conditions for the electrical load.
10 . The computer-implemented method of claim 9 , wherein the environmental conditions describe one or more of temperature and humidity for the electrical load.
11 . A non-transitory computer readable medium storing instructions executable by a data processing apparatus and that upon such execution cause the data processing apparatus to perform operations comprising:
for a power customer location that receives power from a power source, the power customer location including a plurality of electrical loads:
receiving, by a data processing apparatus, reporting data from each of a plurality of power management devices, each power management device coupled to a respective one of the electrical loads and providing power management for the electrical load;
wherein for each power management device the reporting data includes:
power characteristics as detected at the electrical load; and
a time at which the power characteristics were detected;
determining, by the data processing apparatus and from the reporting data, historical power characteristics for each electrical load indicative of power consumption when input power is within a nominal specification;
determining, based on the historical power characteristic, that an electrical load operation in a healthy state for a power management device is consuming power at a consumption level that is a precursor indicator of a malfunction state of the electrical load; and
generating, in response to the determination, an alert that describes that the electrical load of the load point may be experiencing a malfunction.
12 . A system, comprising:
a data processing apparatus; and
a non-transitory computer readable medium storing instructions executable by the data processing apparatus and that upon such execution cause the data processing apparatus to perform operations comprising:
for a power customer location that receives power from a power source, the power customer location including a plurality of electrical loads:
receiving, by a data processing apparatus, reporting data from each of a plurality of power management devices, each power management device coupled to a respective one of the electrical loads and providing power management for the electrical load;
wherein for each power management device the reporting data includes:
power characteristics as detected at the electrical load; and
a time at which the power characteristics were detected;
determining, by the data processing apparatus and from the reporting data, historical power characteristics for each electrical load indicative of power consumption when input power is within a nominal specification;
determining, based on the historical power characteristic, that an electrical load operation in a healthy state for a power management device is consuming power at a consumption level that is a precursor indicator of a malfunction state of the electrical load; and
generating, in response to the determination, an alert that describes that the electrical load of the load point may be experiencing a malfunction.