Importance

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Abstract

A method for automatically determining whether power consumption devices can be powered up in a power consuming system having multiple power consumption devices to be powered up by one or several voltages among a set of voltages V1, V2 . . . Vm. The set of voltages are provided by multiple power supplies, wherein each power supply provides at least one voltage. The power consuming system also includes a control point for controlling the power supplied to the power consumption devices. The method includes determining a set of linear inequations linking each variable P.sub.V1, P.sub.V2 . . . P.sub.Vm representing the power being consumed for each voltage, or combinations of several variables, to predetermined power limits PVC. Next, the real power value (P) requested for each voltage in order to power up each one of the first plurality of power consumption devices is determined. Subsequently, each real power value is divided by the number of power supplies (p) providing power for the associated voltage in order to determine the components of a power consumption vector (PC) for each power supply. Next, the variables P.sub.V1, P.sub.V2 . . . P.sub.Vm are replaced in the inequations by the corresponding components of the power consumption vector for each power supply (PC) in order to obtain a requested power value for each inequation. The requested power value is then compared to the predetermined power limits (PVC). The requested power value is then compared to the predetermined power limits (PVC) and the control point determines that a new power supply is requested if at least one of the requested power values is greater than the predetermined power limits.

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First Claim