Power distribution network operation reliability analysis method based on four-dimensional index system
An index system and analysis method technology, applied in the field of distribution network operation reliability analysis based on the four-dimensional index system, can solve the problems of long-term reliability evaluation and inability to achieve short-term evaluation
Pending Publication Date: 2021-02-26
XIAN THERMAL POWER RES INST CO LTD
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Because it is based on months or years of data, reliability assessment often takes a long time, and short-term assessment cannot be done
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[0026] The technical solution of the present invention will be described in further detail below with reference to the accompanying drawings.
[0027] Such as figure 1 As shown, to study the reliability of distribution network operation, it is necessary to obtain a large amount of data of distribution network at first. Since the structure, operating status, environment, and maintenance plan of each component in the distribution network system are different, it is necessary to monitor and collect these data in real time. Analyze the reliability of the system to obtain the operational reliability index of the system. Generally speaking, the data related to the reliability index can be divided into four types of data shown in Table 1.
[0028] Table 1 Relevant data and sources of operational reliability
[0029]
[0030]
[0031] Principal component analysis is a statistical method for big data analysis. The purpose is to simplify the object model, collect key informatio...
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The invention discloses a power distribution network operation reliability analysis method based on a four-dimensional index system. The method comprises the following steps: 1) establishing data related to a power distribution network operation reliability index; 2) performing dimension reduction processing on data related to the operation reliability index of the power distribution network in the step 1) by adopting a principal component analysis method, and establishing a four-dimensional index system including a standard evaluation index, a correlation matrix, a principal component and a main evaluation index; 3) establishing a power distribution network operation reliability index system according to the four-dimensional index system in the power distribution network operation reliability analysis in the step 2); 4) extracting characteristic data of each index in the power distribution network operation reliability index system in the step 3) by adopting a principal component analysis method to obtain related indexes influencing the operation reliability of the power distribution network; and 5) analyzing the related indexes influencing the operation reliability of the power distribution network in the step 4) by using a parallel association rule mining method to obtain main factors influencing the operation reliability.
Description
technical field [0001] The invention relates to a method for analyzing the operation reliability of a distribution network based on a four-dimensional index system. The method establishes a four-dimensional index system for the operation reliability of the distribution network, and uses the principal component analysis method to extract main evaluation indicators from a large amount of data and analyze the distribution network. Network operation reliability. Background technique [0002] With the rapid development of the distribution network, the demand for corresponding data is also increasing. These data include not only business information such as the operation, monitoring, dispatching and maintenance of the distribution system, but also a large amount of social and economic information. In the field of distribution network research, such data provide the basis for distribution network intelligence. Big data, as a large and complex data set, means that it cannot be proc...
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IPC IPC(8): G06F30/18H02J3/00G06F119/02
CPCG06F30/18H02J3/00H02J2203/20G06F2119/02
Inventor 杨沛豪邬冯值柴琦王小辉寇水潮高峰杜巍郭新宇孙梦瑶李志鹏
Owner XIAN THERMAL POWER RES INST CO LTD