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Operation state prediction method used for metering device

A technology of metering device and operating status, which is applied in the field of status evaluation of gateway metering equipment, which can solve problems such as difficulty in power replenishment work, difficulty in finding metering problems in time, and low work efficiency

Active Publication Date: 2017-01-11
CHENGDU SIHAN TECH
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Problems solved by technology

At present, this on-site inspection method has been difficult to meet the requirements of electric energy metering technology and refined management of power companies. It is very difficult to realize standardized technical management under certain conditions; 2) The work efficiency of traditional manual on-site inspection is low, and real-time monitoring and fault warning cannot be carried out on the device. brought great difficulty

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  • Operation state prediction method used for metering device
  • Operation state prediction method used for metering device
  • Operation state prediction method used for metering device

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Embodiment Construction

[0074] The method for predicting the operating state of a metering device according to the present invention comprises the following steps:

[0075] A. Obtain the cumulative time series XX(t) of the metering device from 0 to t, x orig (k) indicates the scoring parameter value of the running state of the metering device at a certain moment;

[0076] B. Construct the matrix B and data column y of the prediction model;

[0077] in, N ∈ [1,t]

[0078] C. Calculate the parameters coef1, coef2 and coef3 of the prediction model; cof2=X orig (1)-cof1, cof3=-a,

[0079] au = a u = ( B T B ) - 1 B T y ;

[0080] D. Use the prediction model to calculate the predicted value mXX(t+1) of the c...

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Abstract

The invention discloses an operation state prediction method used for a metering device. The operation state prediction method can perform online analysis and has low prediction error. According to the operation state prediction method used for the metering device, the accumulative time sequences XX(t) of the metering device from 0 to the t moment are acquired firstly, and then the matrix B and the data column y of a prediction model are constructed; then the parameters coef1, coef2 and coef 3 of the prediction model are calculated; and the prediction value mXX(t+1) of the accumulative time sequences is calculated by utilizing the prediction model, and finally the operation state scoring parameter value Xorig(t+1) of the metering device in the future t+1 is calculated. According to the method, online analysis and prediction of the operation state of the metering device can be realized, and the prediction error is low so that the operation state prediction method used for the metering device is suitable for being popularized and applied in the technical field of gateway metering equipment state assessment.

Description

technical field [0001] The invention relates to the technical field of state evaluation of gate metering equipment, in particular to a method for predicting the running state of a metering device. Background technique [0002] With the deepening of the market-oriented reform of the power industry, the exchange of power at grid-connected power generation, inter-regional power transmission, inter-provincial power transmission and provincial power supply is increasing, and power companies have begun to pay more attention to the maintenance of their own economic interests. How to ensure the accuracy of electric energy metering devices and maintain the fair and orderly operation of the electricity market is an important topic in the current research of the electricity market. The operation management of electric energy metering devices at the gateway mainly includes on-site inspection and periodic rotation. DL / T 448-2000 "Technical Management Regulations for Electric Energy Meter...

Claims

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Application Information

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IPC IPC(8): G01R35/04
CPCG01R35/04
Inventor 张龙飞
Owner CHENGDU SIHAN TECH
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