Failure rate adjustment for electric power network reliability analysis
AssigneeABB AB
InventorsZhenyuan Wang, Jiuping Pan, David Lubkeman, Richard E. Brown
Life of this patent
Estimating the term…
Abstract
Methodologies adjust a component failure rate for electric power network reliability analysis. A component may include subcomponents and the failure of each subcomponent may be feature dependent. Features are measurable or observable inputs, which can affect the life of one or more subcomponents. The failure rate of a particular component may be obtained according to its real conditions. The methodologies can be used to do condition-based reliability analysis for electric power networks, in order to obtain a maintenance/replacement/operation strategy.
Claims21
A method for providing a reliability assessment of a power network, the method comprising:
- determining information representative of a failure rate of a power network component based on a population of power network components of the same type as the power network component;
- receiving information representative of the condition of the power network component;
- and
- determining an adjusted failure rate for the power network component based on the information representative of the failure rate of the power network component and the information representative of the condition of the power network component.
A reliability assessment system for a power network, the reliability assessment system comprising:
- a first data store comprising:
- information representative of a failure rate of a power network component based on a population of power network components of the same type as the power network component;
- and
- information representative of the condition of the power network component;
- and
- a computing application cooperating with the first data store and performing:
- receiving the information representative of a failure rate of a power network component based on a population of power network components of the same type as the power network component from the first data store;
- receiving the information representative of the condition of the power network component from the first data store;
- and
- determining an adjusted failure rate for the power network component based on the information representative of the failure rate of the power network component and the information representative of the condition of the power network component.
Dependencies are inferred from the claim text.