Adaptive dynamic load monitoring method for power distribution network power failure events

A dynamic monitoring and distribution network technology, applied to electrical components, circuit devices, AC network circuits, etc., can solve problems such as violation of facts, inconsistencies, investment waste, etc., and achieve the effect of improving accuracy and effectiveness

Active Publication Date: 2016-03-16
BEIHAI POWER SUPPLY BUREAU OF GUANGXI GRID +1
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  • Application Information

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Problems solved by technology

The accuracy of the load adaptive dynamic monitoring model has a great influence on the transmission of the distribution network and the simulation results of the system. An inappropriate model will make t

Method used

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  • Adaptive dynamic load monitoring method for power distribution network power failure events
  • Adaptive dynamic load monitoring method for power distribution network power failure events
  • Adaptive dynamic load monitoring method for power distribution network power failure events

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Embodiment Construction

[0030] The technical solutions of the present invention will be described in detail below in conjunction with the drawings and embodiments.

[0031] The flow process that the present invention solves the problem is as figure 1 shown.

[0032] figure 2 A load adaptive dynamic monitoring method for distribution network blackout events is given, and the specific steps are as follows:

[0033] Step 1: Distribution network business data collection.

[0034] The collected data includes planned power outages, power outage alarms, and load data at metering points. The metering point load data includes meter number MP_ID, terminal logic address TERM_ADDR, A-phase voltage VOLT_A, A-phase current CURR_A, A-phase active power POW_A, A-phase reactive power NPOW_A, etc.

[0035] Step 2: Difference equation model based on non-mechanistic approach.

[0036] The load to be studied is regarded as a "black box", the input data is the voltage and current of the unloaded bus, the output is t...

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Abstract

The invention discloses an adaptive dynamic load monitoring method for power distribution network power failure events. According to the method, weights of four indexes, such as planned power failure time, power failure alarm time, power failure beginning time and power failure continuity time are calculated on the basis of an entropy weight method and by utilizing power distribution network business data, and the weights are integrated into one index; a differential equation model is established on the basis of a non-mechanism method to carry out data modeling, and parameters of the model are identified on the basis of the particle swarm optimization algorithm; an adaptive dynamic load monitoring model is calculated and verified, and power failure event diagnosis analysis and calculation result discuss are carried out according to a load cluster group. The method is advantaged in that, through model calculation and verification, the effect is substantially better than that of a dynamic monitoring model. The method is applied to actual business data analysis or other related fields, input data mining can be effectively carried out, load characteristic classification and decision are realized, and power failure event monitoring accuracy and validity are improved.

Description

technical field [0001] The invention relates to the technical fields of on-line monitoring of distribution network power supply, distribution network power outage recovery, and load dynamic monitoring research, and in particular to a load adaptive dynamic monitoring method for distribution network power failure events. technical background [0002] The power system is a system of energy production, transmission and use composed of power plants, transmission networks and power loads. The electric energy generated by the power plant is transmitted to each user through the high-voltage transmission network and the low-voltage distribution network, and is consumed by the electrical equipment installed at the user. Power load is the general term for these electrical equipment, which sometimes includes power distribution network, referred to as load for short. The load has characteristics such as voltage and frequency. The mathematical equations used to describe the load charact...

Claims

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Application Information

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IPC IPC(8): H02J3/00
CPCH02J3/00H02J2203/20
Inventor 麦青吴比坤洪刚张如利覃能杰田泉陈作铭朱庆波周宏瑞黎颋翁海锋
Owner BEIHAI POWER SUPPLY BUREAU OF GUANGXI GRID
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