System and method for providing dynamic power management
First Claim
1. A method for providing power management to a multi-phase power source for providing input current to a plurality of power outlets and a plurality of other loads, comprising:
- measuring an input current provided by the power source to the loads and the power outlets across each power phase of the power source;
repeating said measuring the input current if the measured input current is less than a first set current value;
entering a first power limiting mode if the measured input current is greater than the first set current value and less than a second set current value, the second set current value being greater than the first set current value;
in the first power limiting mode,disabling each unused power outlet;
measuring a first resultant input current provided to the loads and the remaining power outlets across each power phase of the power source;
entering a second power limiting mode if the first resultant input current is greater than the second set current value;
enabling each of the disabled power outlets and exiting the first power limiting mode if the first resultant input current remains less than a first release current value during a first time interval that is greater than a first release timer value, the first release current value being less than the first set current value; and
repeating said measuring the first resultant input current and said entering the second power limiting mode if the first resultant input current becomes greater than the first release current value during the first time interval and enabling each of the disabled power outlets and exiting the first power limiting mode if the first resultant input current remains less than the first release current value during a subsequent first time interval that is greater than the first release timer value,entering the second power limiting mode if the measured input current is greater than the second set current value,in the second power limiting mode,disabling each of the power outlets;
measuring a second resultant input current provided to the loads across each power phase of the power source;
enabling the disabled power outlets and exiting the second power limiting mode if the second resultant input current remains less than a second release current value during a second time interval that is greater than a second release timer value, the second release current value being less than the second set current value; and
repeating said measuring the second resultant input current if the second resultant input current is greater than the second release current value during the second time interval and enabling the disabled power outlets and exiting the second power limiting mode if the second resultant input current remains less than the second release current value during a subsequent second time interval that is greater than a second release timer value.
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Accused Products
Abstract
A power management system suitable for dynamically allocating power provided by a selected power source among one or more associated loads and methods for manufacturing and using same. In a normal operation mode, the power source provides power to one or more enabled loads. The selection of loads that are enabled, and therefore the provided power, can dynamically vary over time. If an undesired power condition arises, a power limiting mode is entered, wherein at least one of the enabled loads is disabled. The resultant power provided by the power source to the remaining enabled loads is measured, and the power limit mode is maintained until the undesired power condition is resolved. As needed, further corrective action, such as disabling additional enabled loads, can be applied to resolve the undesired power condition. The power management system thereby can comprise a hierarchical system for dynamically resolving undesired power conditions.
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Citations
30 Claims
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1. A method for providing power management to a multi-phase power source for providing input current to a plurality of power outlets and a plurality of other loads, comprising:
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measuring an input current provided by the power source to the loads and the power outlets across each power phase of the power source; repeating said measuring the input current if the measured input current is less than a first set current value; entering a first power limiting mode if the measured input current is greater than the first set current value and less than a second set current value, the second set current value being greater than the first set current value; in the first power limiting mode, disabling each unused power outlet; measuring a first resultant input current provided to the loads and the remaining power outlets across each power phase of the power source; entering a second power limiting mode if the first resultant input current is greater than the second set current value; enabling each of the disabled power outlets and exiting the first power limiting mode if the first resultant input current remains less than a first release current value during a first time interval that is greater than a first release timer value, the first release current value being less than the first set current value; and repeating said measuring the first resultant input current and said entering the second power limiting mode if the first resultant input current becomes greater than the first release current value during the first time interval and enabling each of the disabled power outlets and exiting the first power limiting mode if the first resultant input current remains less than the first release current value during a subsequent first time interval that is greater than the first release timer value, entering the second power limiting mode if the measured input current is greater than the second set current value, in the second power limiting mode, disabling each of the power outlets; measuring a second resultant input current provided to the loads across each power phase of the power source; enabling the disabled power outlets and exiting the second power limiting mode if the second resultant input current remains less than a second release current value during a second time interval that is greater than a second release timer value, the second release current value being less than the second set current value; and repeating said measuring the second resultant input current if the second resultant input current is greater than the second release current value during the second time interval and enabling the disabled power outlets and exiting the second power limiting mode if the second resultant input current remains less than the second release current value during a subsequent second time interval that is greater than a second release timer value. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A power management system, comprising:
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a multi-phase power source; a power distribution system for distributing multi-phase input power provided by said multi-phase power source as output power to a plurality of loads and to a plurality of power outlets; and a power control system for managing the distribution of the output power among the loads and the power outlets via the power distribution system, the power control system configured for; measuring an input current provided by the power source to the loads and the power outlets across each power phase of the power source; repeating said measuring the input current if the measured input current is less than a first set current value; entering a first power limiting mode if the measured input current is greater than the first set current value and less than a second set current value the second set current value being greater than the first set current value; in the first power limiting mode, disabling each unused power outlet; measuring a first resultant input current provided to the loads and the remaining power outlets across each power phase of the power source; entering a second power limiting mode if the first resultant input current is greater than the second set current value; enabling each of the disabled power outlets and exiting the first power limiting mode if the first resultant input current remains less than a first release current value during a first time interval that is greater than a first release timer value, the first release current value being less than the first set current value; and repeating said measuring the first resultant input current and said entering the second power limiting mode if the first resultant input current becomes greater than the first release current value during the first time interval and enabling each of the disabled power outlets and exiting the first power limiting mode if the first resultant input current remains less than the first release current value during a subsequent first time interval that is greater than the first release timer value, entering the second power limiting mode if the measured input current is greater than the second set current value, in the second power limiting mode, disabling each of the power outlets; measuring a second resultant input current provided to the loads across each power phase of the power source; enabling the disabled power outlets and exiting the second power limiting mode if the second resultant input current remains less than a second release current value during a second time interval that is greater than a second release timer value, the second release current value being less than the second set current value; and repeating said measuring the second resultant input current if the second resultant input current is greater than the second release current value during the second time interval and enabling the disabled power outlets and exiting the second power limiting mode if the second resultant input current remains less than the second release current value during a subsequent second time interval that is greater than a second release timer value. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A computer program product for providing power management to a multi-phase power source for providing input current to a plurality of power outlets and a plurality of other loads, the computer program product being encoded on one or more non-transitory computer-readable media and comprising:
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instruction for measuring an input current provided by the power source to the loads and the power outlets across each power phase of the power source; instruction for repeating said measuring the input current if the measured input current is less than a first set current value; instruction for entering a first power limiting mode if the measured input current is greater than the first set current value and less than a second set current value, the second set current value being greater than the first set current value; in the first power limiting mode, instruction for disabling each unused power outlet; instruction for measuring a first resultant input current provided to the loads and the remaining power outlets across each power phase of the power source; instruction for entering a second power limiting mode if the first resultant input current is greater than the second set current value; instruction for enabling each of the disabled power outlets and exiting the first power limiting mode if the first resultant input current remains less than a first release current value during a first time interval that is greater than a first release timer value, the first release current value being less than the first set current value; and instruction for repeating said measuring the first resultant input current and said entering the second power limiting mode if the first resultant input current becomes greater than the first release current value during the first time interval and enabling each of the disabled power outlets and exiting the first power limiting mode if the first resultant input current remains less than the first release current value during a subsequent first time interval that is greater than the first release timer value, instruction for entering the second power limiting mode if the measured input current is greater than the second set current value, in the second power limiting mode, instruction for disabling each of the power outlets; instruction for measuring a second resultant input current provided to the loads across each power phase of the power source; instruction for enabling the disabled power outlets and exiting the second power limiting mode if the second resultant input current remains less than a second release current value during a second time interval that is greater than a second release timer value, the second release current value being less than the second set current value; and instruction for repeating said measuring the second resultant input current if the second resultant input current is greater than the second release current value during the second time interval and enabling the disabled power outlets and exiting the second power limiting mode if the second resultant input current remains less than the second release current value during a subsequent second time interval that is greater than a second release timer value. - View Dependent Claims (25, 26, 27, 28, 29, 30)
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Specification