An online monitoring method for a backup power system of an intelligent power distribution terminal

A technology of intelligent power distribution terminal and backup power supply, which is applied in the field of power system automation, can solve problems such as difficult, complex and difficult to identify, and achieve the effect of convenient measurement and low measurement cost

CN104122508BActive Publication Date: 2017-01-18SHANDONG KEHUI POWER AUTOMATION
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2017-01-18

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Abstract

The invention discloses an online monitoring method for the backup power supply system of an intelligent power distribution terminal, which belongs to the field of power system automation. The online monitoring method is characterized by comprising the following steps of: step a, setting an online monitoring mode word; step b, acquiring a standard discharge curve for forming an energy storage component and storing; step c, acquiring a real-time discharge curve for forming the energy storage component; step d, calling the standard discharge curve and calculating the association coefficient of the curve; step e, judging the association coefficient of the curve. According to the online monitoring method for the backup power supply system of the intelligent power distribution terminal, the original hardware resources of the intelligent terminal are utilized, online monitoring is realized only by measuring the voltage value of an energy storage medium, and cooperating with the activation circuit of the intelligent terminal, without the need of measuring a current and calculating an internal resistance, and adding additional monitoring equipment; the online monitoring method is convenient to measure, accurate and reliable, and low in measurement cost.
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Description

technical field

[0001] The invention relates to an online monitoring method for a backup power supply system of an intelligent power distribution terminal, which belongs to the field of power system automation. Background technique

[0002] Smart power distribution terminals (hereinafter referred to as smart terminals) are the key equipment of the smart grid. A medium-sized city with complete power distribution automation needs thousands of smart terminals. These smart terminals are installed in every corner of the city, and the installation of many smart terminals The environment is harsh and unattended, and the maintenance and repair workload in the later period is very heavy.

[0003] The backup power system in the smart terminal is an important guarantee to ensure the continuous operation of the smart terminal in the event of a power failure. In the backup power system, the energy storage component is a component with a short life. In practical applications, the energy s...

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Embodiment Construction

[0043] Figure 1~3 It is the best embodiment of the present invention, below in conjunction with attached Figure 1~3 The present invention is described further:

[0044] In the prior art, the intelligent terminal of the distribution network is composed of a core control unit and peripheral circuits, wherein the core unit realizes the functions of three remotes and fault monitoring of the power distribution monitoring system, and the peripheral circuits are multiple systems including backup power supplies. The backup power system includes: power management module, energy storage medium and discharge resistor. like figure 1 As shown, in the prior art backup power system, the power output terminal of the energy storage element is connected to the power management module, the power management module is connected to the discharge resistor, and the power management module is connected to 220V AC at the same time. The power management module provides 24V power supply for the core...