Electric power system typical fault set determination method based on state enumeration method
A state enumeration method and power system technology, applied in the direction of electrical components, circuit devices, AC network circuits, etc., can solve problems such as failure probability risk without considering the state
Inactive Publication Date: 2016-05-04
CHINA ELECTRIC POWER RES INST +3
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[0004] This application provides a typical fault set method for circuit systems based on the state enumeration method, which can take into account factors such as the typical operation mode and system risk level in the power system, so as to solve the technical problem in the prior art that does not consider the probability risk of state faults
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[0035] Such as figure 1 As shown, a method for determining a typical fault set of a power system based on the state enumeration method includes the following steps:
[0036] S1: According to the kmeans clustering method, cluster the power system node load and power generation output data, and determine the typical operation mode of the power system;
[0037] S2: According to the failure rate of each component in the power grid, enumerate and generate the fault-free working state and fault working state of each component, thereby obtaining the state of the entire system and its corresponding probability;
[0038] S3: Sort system state based on performance metrics.
[0039] figure 2 Shown are the clustered results.
[0040] Further, step S1 specifically includes:
[0041] S11: Determine the load power L of each node of the power system according to the time series load curve;
[0042] S12: Determine the power generation output G of each node of the power system according t...
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The invention provides an electric power system typical fault set determination method based on a state enumeration method. The method includes the steps of: S1. performing clustering of electric power system node load and generated output data according to a Kmeans clustering method, thereby determining typical operation modes of an electric power system; S2. enumerating and generating a fault-free working state and a fault working state of each component, thereby obtaining the states of the whole system and probabilities of the states; and S3. sorting the system states based on performance indexes. The method considers different operation modes in the electric power system, overcomes the defect of not considering state fault probability risks in the prior art, is high in efficiency of screening typical faults of the electric power system, and can provide a beneficial reference for power grid planning.
Description
technical field [0001] The invention relates to the technical field of power system planning, in particular to a method for determining a typical fault set of a power system based on a state enumeration method. Background technique [0002] Electricity is the basic energy industry that is related to the national economy and people's livelihood in the development of my country's national economy. Electricity plays an extremely critical role in promoting my country's economic development and social progress. During the "Eleventh Five-Year Plan" period, my country deepened the reform of the power system, further implemented the separation of government and enterprise, the separation of factories and networks, and the bidding of power generation on the Internet. With the gradual opening of my country's power grid system, the operation of the power grid also presents some new features: the generation of distributed power generation causes many users to choose to install distribut...
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Login to View More IPC IPC(8): H02J3/00
CPCH02J3/00H02J3/001H02J2203/20
Inventor 谢开贵贺海磊钟隽周勤勇胡博
Owner CHINA ELECTRIC POWER RES INST