METHOD AND ARRANGEMENT FOR LIMITING ELECTRIC POWER REQUIRED BY ELECTRIC LOADS
First Claim
1. A method for limiting an electric power required by at least two electric loads, each of which has a predetermined priority level, the method comprising:
- reducing the total electric power required by the at least two electric loads according to the predetermined priority levels of the electric loads if the total electric power exceeds a predetermined threshold value by reducing, in a priority-level-wise manner, individual electric powers required by the electric loads having the predetermined priority levels by starting from electric load or loads having the lowest priority level and proceeding, one priority level at a time, towards the highest priority level until the monitored total electric power does not exceed the predetermined threshold value, wherein the reducing of the total electric power comprises;
communicating individual electric powers required by the electric loads from each of the at least two electric loads to each other;
monitoring in each of the at least two electric loads the total electric power required by the at least two electric loads;
communicating the predetermined priority levels and predetermined minimum power levels of the electric loads from each of the at least two electric loads to each other; and
determining in the electric loads if the individual electric power required by the electric load in question should be reduced on the basis of the predetermined threshold value and the information communicated from the other electric loads.
2 Assignments
0 Petitions
Accused Products
Abstract
A method and arrangement for limiting an electric power required by at least two electric loads, each of which has a predetermined priority level, the arrangement comprising means (31, 32, 33) for monitoring a total electric power required by the at least two electric loads (21, 22, 23), and means (31, 32, 33) for reducing, in a priority-level-wise manner, individual electric powers required by the electric loads (21, 22, 23) having the predetermined priority levels by starting from electric load or loads having the lowest priority level and proceeding, one priority level at a time, towards the highest priority level until the monitored total electric power does not exceed a predetermined threshold value.
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Citations
9 Claims
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1. A method for limiting an electric power required by at least two electric loads, each of which has a predetermined priority level, the method comprising:
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reducing the total electric power required by the at least two electric loads according to the predetermined priority levels of the electric loads if the total electric power exceeds a predetermined threshold value by reducing, in a priority-level-wise manner, individual electric powers required by the electric loads having the predetermined priority levels by starting from electric load or loads having the lowest priority level and proceeding, one priority level at a time, towards the highest priority level until the monitored total electric power does not exceed the predetermined threshold value, wherein the reducing of the total electric power comprises; communicating individual electric powers required by the electric loads from each of the at least two electric loads to each other; monitoring in each of the at least two electric loads the total electric power required by the at least two electric loads; communicating the predetermined priority levels and predetermined minimum power levels of the electric loads from each of the at least two electric loads to each other; and determining in the electric loads if the individual electric power required by the electric load in question should be reduced on the basis of the predetermined threshold value and the information communicated from the other electric loads. - View Dependent Claims (2, 3, 4)
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5. An arrangement for limiting an electric power required by at least two electric loads, each of which has a predetermined priority level, the arrangement being configured to:
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reduce the total electric power required by the at least two electric loads according to the predetermined priority levels if the total electric power exceeds a predetermined threshold value, by reducing, in a priority-level-wise manner, individual electric powers required by the electric loads having the predetermined priority levels by starting from electric load or loads having the lowest priority level and proceeding, one priority level at a time, towards the highest priority level until the monitored total electric power does not exceed the predetermined threshold value, wherein the arrangement comprises, in connection with each of the at least two electric loads; means configured to communicate the individual electric powers required by the electric loads, the predetermined priority levels and predetermined minimum power levels of the electric loads to each other; means configured to monitor the total electric power required by said at least two electric loads; and means configured to determine if the individual electric power required by the electric load in question should be reduced on the basis of the predetermined threshold value and the information communicated from the other electric loads. - View Dependent Claims (6, 7, 8)
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9. An electric drive, the electric drive being configured to:
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monitor a total electric power required by at least two electric loads, wherein one of the at least two electric loads is the electric drive; reduce an electric power required by the electric drive on the basis of a predetermined threshold value, the monitored total electric power required by the at least two electric loads, and predetermined priority levels of the at least two electric loads; and communicate an individual electric power required by the electric drive, the predetermined priority level of the electric drive, and a predetermined minimum power level of the electric drive to other loads of the at least two electric loads.
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Specification