Root cause and system enhancement analysis
First Claim
1. A method of assessing a condition of an electrical power system including a network of buses, at least certain of the buses including a respective reactive source, the method comprising:
- (I) performing a plurality of contingencies using a mathematical model of the network manipulated by a processor;
(II) determining a representative solution for each contingency of the plurality of contingencies;
(III) for each bus in the network, tabulating symptoms of system stress exhibited by the bus in the representative solution for each contingency;
(IV) categorizing each contingency into one of at least two contingency clusters based on its representative solution;
(V) sorting those of the buses having a highest number of the symptoms of system stress summed over those contingencies categorized within a respective contingency cluster into a respective bus group associated with the respective contingency cluster;
(VI) arranging each of the at least two contingency clusters into a ranking based on its effect on the network; and
(VII) selecting a location for a network enhancement from a group of buses associated with a contingency cluster of the ranking that has a largest effect on the network and also includes buses as a result of the sorting.
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Abstract
A method of assessing an electrical power system is provided that includes performing a plurality of contingencies using a mathematical model of the system and determining a representative solution for each contingency. For each bus and contingency, symptoms of system stress exhibited in the representative solution are tabulated. Each contingency is categorized into a contingency cluster based on its representative solution, and those buses having a highest number of the symptoms of system stress for each contingency categorized within a respective contingency cluster are sorted into a group associated therewith. The contingency clusters are arranged into a ranking based on its effect on the network, and a location for a network enhancement is selected from a group of buses associated with a contingency cluster of the ranking that has a largest effect on the network and also includes buses as a result of the sorting.
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Citations
21 Claims
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1. A method of assessing a condition of an electrical power system including a network of buses, at least certain of the buses including a respective reactive source, the method comprising:
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(I) performing a plurality of contingencies using a mathematical model of the network manipulated by a processor; (II) determining a representative solution for each contingency of the plurality of contingencies; (III) for each bus in the network, tabulating symptoms of system stress exhibited by the bus in the representative solution for each contingency; (IV) categorizing each contingency into one of at least two contingency clusters based on its representative solution; (V) sorting those of the buses having a highest number of the symptoms of system stress summed over those contingencies categorized within a respective contingency cluster into a respective bus group associated with the respective contingency cluster; (VI) arranging each of the at least two contingency clusters into a ranking based on its effect on the network; and (VII) selecting a location for a network enhancement from a group of buses associated with a contingency cluster of the ranking that has a largest effect on the network and also includes buses as a result of the sorting. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification