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32results about How to "Assess health" patented technology

System and method for condition assessment and end-of-life prediction

A condition assessment and end-of-life prediction system that includes a virtual condition assessment instrument and a virtual end-of-life prediction instrument. The virtual condition assessment instrument measures the condition of the equipment and includes a data capture subsystem for sampling a set of analog signals and converting them into digital signals, a model-based component to estimate disturbances and predict an expected response, a signal-based component to process output from the model-based component, a classification component to process output from the signal-based component, a fuzzy logic expert component to combine information from the classification component and the model-based component in order to assess the condition of the equipment, and a condition assessment panel to display the condition of the equipment. The a virtual end-of-life prediction instrument predicts the equipment end-of-life and includes a condition prediction end-of-life prediction component to analyze information from the virtual condition assessment instrument to predict condition and end-of life, a prediction condition and end-of-life uncertainty estimation component to estimate the uncertainty of the condition and end-of-life prediction, and an end-of-life panel for displaying the condition and end-of-life prediction and uncertainty.
Owner:TEXAS A&M UNIVERSITY

Method for evaluating operation status of power system by utilizing probability tide

The invention discloses a method for evaluating the operation status of a power system by utilizing a probability tide. The method comprises the following steps of 1, building a probability tide calculation model shown in formula (1); 2, carrying out solution on the probability tide model by adopting a three-point estimation method to obtain node voltage probability distribution of the power system and branch tide probability distribution of the power system; and 3, respectively comparing the node voltage probability distribution of the power system with a higher limit value and a lower limit value of voltages in each node of the power system to obtain a probability summation Pv of each node voltage exceeding a region formed by the higher and the lower limit values of each node voltage; respectively carrying out comparison on the branch tide probability distribution with the higher and the lower limit values of each branch tide in the power system to obtain the probability summation Pl of each node branch tide exceeding the region formed by the higher and the lower limit values; if all Pv and all Pl are less than or equal to an exceeding limit threshold that the power system normally operates, the power system is indicated to normally operate; and if not, the power system is indicated to abnormally operate.
Owner:INSIGMA INNOVATION RES DEV +3

Method for evaluating operation status of power system by utilizing probability tide

The invention discloses a method for evaluating the operation status of a power system by utilizing a probability tide. The method comprises the following steps of 1, building a probability tide calculation model shown in formula (1); 2, carrying out solution on the probability tide model by adopting a three-point estimation method to obtain node voltage probability distribution of the power system and branch tide probability distribution of the power system; and 3, respectively comparing the node voltage probability distribution of the power system with a higher limit value and a lower limit value of voltages in each node of the power system to obtain a probability summation Pv of each node voltage exceeding a region formed by the higher and the lower limit values of each node voltage; respectively carrying out comparison on the branch tide probability distribution with the higher and the lower limit values of each branch tide in the power system to obtain the probability summation Pl of each node branch tide exceeding the region formed by the higher and the lower limit values; if all Pv and all Pl are less than or equal to an exceeding limit threshold that the power system normally operates, the power system is indicated to normally operate; and if not, the power system is indicated to abnormally operate.
Owner:INSIGMA INNOVATION RES DEV +3
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