Datacenter level power management with reactive power capping

A system, comprising:

• memory configured to store instructions;
• and
• one or more processors configured to execute the instructions to cause the system to at least:
• identify, by a power management service, a plurality of components of a power system that are arranged according to a power distribution hierarchy that comprises a plurality of nodes organized according to respective levels of a plurality of levels, a node of the plurality of nodes of the power distribution hierarchy representing a corresponding component of the plurality of components, a subset of nodes of a first level of the plurality of levels descending from a particular node of a second level of the plurality of levels that is higher than the first level, and a set of lower-level components of the plurality of components that are represented by the subset of nodes of the first level receiving power distributed through a higher-level component of the plurality of components that is represented by the particular node of the second level;
• monitor, by the power management service, power consumption of the set of lower-level components represented by the subset of nodes of the first level;
• determine, by the power management service based at least in part on the monitoring, that the power consumption of the set of lower-level components has breached a budget threshold associated with the higher-level component;
• and
• responsive to determining that the power consumption of the set of lower-level components has breached the budget threshold associated with the higher-level component, transmit, by the power management service, a power cap value for a lower-level component and a timing value with which a timer is initiated, causing the lower-level component to store the power cap value in memory while allowing a respective power consumption of the lower-level component to exceed the power cap value, until the timer expires, indicating that a time period corresponding to the timing value has elapsed.

A method, comprising:

• identifying, by a power management service, a plurality of components of a power system that are arranged according to a power distribution hierarchy that comprises a plurality of nodes organized according to respective levels of a plurality of levels, a node of the plurality of nodes of the power distribution hierarchy representing a corresponding component of the plurality of components, a subset of nodes of a first level of the plurality of levels descending from a particular node of a second level of the plurality of levels that is higher than the first level, and a set of lower-level components of the plurality of components that are represented by the subset of nodes of the first level receiving power distributed through a higher-level component of the plurality of components that is represented by the particular node of the second level;
• monitoring, by the power management service, power consumption of the set of lower-level components represented by the subset of nodes of the first level;
• determining, by the power management service based at least in part on the monitoring, that the power consumption of the set of lower-level components has breached a budget threshold associated with the higher-level component;
• responsive to determining that the power consumption of the set of lower-level components has breached the budget threshold associated with the higher-level component, initiating a timer corresponding to a timing value;
• wherein expiration of the timer indicates expiration of a time period corresponding to the timing value;
• wherein a lower-level component of the set of lower-level components stores a power cap value in memory during the time period;
• wherein enforcement of the power cap value on the lower-level component is delayed until the expiration of the timer.

A system, comprising:

• memory configured to store instructions;
• and
• one or more processors configured to execute the instructions to cause the system to at least:
• identify, by a power management service, a plurality of components of a power system that are arranged according to a power distribution hierarchy that comprises a plurality of nodes organized according to respective levels of a plurality of levels, a node of the plurality of nodes of the power distribution hierarchy representing a corresponding component of the plurality of components, a subset of nodes of a first level of the plurality of levels descending from a particular node of a second level of the plurality of levels that is higher than the first level, and a set of lower-level components of the plurality of components that are represented by the subset of nodes of the first level receiving power distributed through a higher-level component of the plurality of components that is represented by the particular node of the second level;
• monitor, by the power management service, power consumption of the set of lower-level components represented by the subset of nodes of the first level;
• determine, by the power management service based at least in part on the monitoring, that the power consumption of the set of lower-level components has breached a budget threshold associated with the higher-level component;
• responsive to determining that the power consumption of the set of lower-level components has breached the budget threshold associated with the higher-level component, initiate a timer corresponding to a timing value;
• wherein expiration of the timer indicates expiration of a time period corresponding to the timing value;
• wherein a lower-level component of the set of lower-level components stores a power cap value in memory during the time period;
• wherein enforcement of the power cap value on the lower-level component is delayed until the expiration of the timer.