On-line evaluation method and system for operation state of electric energy metering system in electric power spot market

A technology of electric energy metering system and operating state, which is applied in the direction of fuzzy logic-based systems, calculations, logic circuits, etc., which can solve the problems of inability to evaluate the operating state of the electric energy metering system, the hysteresis of evaluation results, and the inability to accurately judge the operating state of the electric energy metering system and other issues to achieve the effect of reducing subjective blindness, timely and accurate operation status, and reducing impact

Pending Publication Date: 2021-11-05
国网山东省电力公司营销服务中心(计量中心) +3
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  • Application Information

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Problems solved by technology

"Cai Hui, Qiao Shisu, Yuan Jian, et al. Dynamic evaluation model of low-voltage smart energy meters based on information fusion [J]. Electric Power System Automation, 2020, 44(11), 206-214", "Chen Jun, Liu Shengyuan, Zhao Ling, et al. The quality evaluation system of electric energy metering equipment based on the combined weighting method and the radar chart method [J]. Energy Engineering, 2020, February, 7-14" and other documents were designed using the information fusion theory and the combined weighting method The quality evaluation model of the electric energy meter, but the evaluation object is only for the meter, not the entire electric energy metering system, so the evaluation index designed by it is only for the electric energy meter, and cannot measure the operating status of the entire electric energy metering system. Evaluation
[0006] The power metering system has the characteristics of many devices, scattered installation, massive data, and centralized processing in terms of hardware. In addition, because the power metering system in the power spot market has its own metering and settlement requirements, it is currently only for a certain link in the metering system. Evaluation, such as metering, cannot fully evaluate the operating status of the electric energy metering system, and most of the current evaluation technologies use historical data for evaluation when they are implemented, which cannot achieve online real-time evaluation, and the evaluation results are lagging and cannot be very good Accurately judge the operating status of the current energy metering system

Method used

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  • On-line evaluation method and system for operation state of electric energy metering system in electric power spot market
  • On-line evaluation method and system for operation state of electric energy metering system in electric power spot market
  • On-line evaluation method and system for operation state of electric energy metering system in electric power spot market

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Embodiment approach

[0054] In the case of no conflict, the embodiments and the features in the embodiments of the present invention can be combined with each other.

[0055] Explanation of terms:

[0056] Electricity spot market: According to the transaction time, the transaction of electric power can be divided into medium and long-term market, day-ahead market, intraday market and real-time market. Among them, the day-ahead market, intra-day market and real-time market are collectively referred to as the spot market.

[0057] Electric energy metering system: a comprehensive system that collects, processes, transmits, monitors, stores and analyzes users' electricity consumption information.

[0058] Metering meter: a device that directly measures electric energy and collects electricity consumption information for various types of users in the power system.

[0059] Acquisition terminal: It is a device that centrally processes the information collected by each electricity collection point, and...

Embodiment 1

[0062] This embodiment discloses an online evaluation method for the operating status of the electric energy metering system in the electric power spot market. Aiming at the characteristics that the bottom metering device of the electric energy metering system is huge in size and various in type, and the top-level management system has a large amount of data and numerous interfaces, the Analytic Hierarchy Process and Fuzzy The comprehensive evaluation method evaluates the effectiveness of the electric energy metering system. The traditional analytic hierarchy process adopts the scale method of 1-9, and constructs the judgment matrix through the pairwise comparison of the evaluation indicators. However, the judgment matrix constructed on this basis has the disadvantage of subjective blindness, and cannot reflect the ambiguity of people's evaluation thinking. In the fuzzy comprehensive evaluation, it may be biased to rely solely on the qualitative judgment of experts. For quanti...

Embodiment 2

[0179] The purpose of this embodiment is to provide a computing device, including a memory, a processor, and a computer program stored in the memory and operable on the processor, and the processor implements the steps of the above method when executing the program.

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Abstract

The invention provides an on-line evaluation method and system for an operation state of an electric energy metering system in an electric power spot market, and the method comprises the steps: constructing an electric energy metering system operation state evaluation model in the electric power spot market, wherein the model comprises a data level index and a system level index; on the basis of the evaluation model, online obtaining index data of the electric energy metering system, performing standardization processing on the obtained quantitative index data, calculating a quantitative index membership degree, processing a qualitative index, and calculating a qualitative index membership degree; constructing a fuzzy relation matrix based on the quantitative index membership degree and the qualitative index membership degree; constructing a fuzzy judgment matrix by evaluating data level indexes and system level indexes in the evaluation model, and calculating single-layer index weights and combined index weights in sequence; and performing fuzzy comprehensive evaluation on the operation state of the electric energy metering system based on the combined index weight and the fuzzy relation matrix, and outputting an evaluation result online in real time. According to the method, fuzziness of evaluation thinking of people can be reflected, and subjective blindness when a judgment matrix is constructed is reduced.

Description

technical field [0001] The invention belongs to the field of electric energy metering data processing, and in particular relates to an online evaluation method and system for the operating state of an electric energy metering system in an electric power spot market. Background technique [0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art. [0003] The construction and operation of the electricity spot market has brought new changes and challenges to the original electric energy metering system. [0004] The main goal of the electricity spot market is to discover the time and space value of electric energy, and form a spot electricity price that changes with time and location. Therefore, the settlement of spot transactions requires matching measurement data as support. At the same time, the role of the metering system must be further developed in the electricity spot market...

Claims

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Application Information

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IPC IPC(8): G06F11/34G06F11/30G06F11/00G06N7/02
CPCG06F11/3452G06F11/3476G06F11/3495G06F11/3006G06F11/008G06N7/023G06F2201/875
Inventor 陈祉如郭亮代燕杰杜艳荆臻李哲董贤光张志赵曦
Owner 国网山东省电力公司营销服务中心(计量中心)
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