Factory power supply network power consumption condition intelligent monitoring system and method

An intelligent monitoring system and power supply network technology, applied in the energy industry, electrical components, circuit devices, etc., can solve the problems of inability to monitor the factory power supply network in real time and low intelligence

Pending Publication Date: 2022-06-07
冯金玉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Based on this, in order to solve the problem that existing factories rely on the experience of management personnel to selectively suppress and reduce the operation of key equipment, cannot automatically monitor the power consumption of the factory p

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] This embodiment provides an intelligent monitoring system for power consumption of a factory power supply network, including a current acquisition unit, a monitoring unit, at least one transformer, at least two protection switches electrically connected to the secondary side of the transformer, at least one first power consumption device, and at least one A second electrical device, the first electrical device and the second electrical device are respectively electrically connected to different protection switches.

[0030] In factories, transformers are generally used to drive multiple electrical equipment. The electrical equipment is electrically connected to the secondary side of the transformer through a protection switch, and each protection switch corresponds to an electrical equipment.

[0031] Among the multiple electrical equipment, there are often key equipment with a relatively heavy load and core equipment with a relatively small load. The key equipment is ...

Embodiment 2

[0043] It should be understood that this example includes at least all the technical features of the above-mentioned embodiments, and further specific descriptions are made on the basis of the above-mentioned embodiments.

[0044] In this example, the monitoring unit is configured to control at least one protection switch corresponding to the first electrical equipment to perform a trip action according to the second defined formula when the real-time current is not less than the alarm trip value, so that the real-time current is less than the alarm trip value.

[0045] Among them, the second limiting formula is p a Indicates the sum of the real-time power of the first electrical equipment corresponding to the a-th protection switch that has not tripped and the average value of power changes in the last preset preset time period. max is the maximum value function, the second limiting formula It means that when the monitoring unit controls at least one protection switch cor...

Embodiment 3

[0050] In this example, an intelligent monitoring method for power consumption of a factory power supply network, applied in the monitoring system, includes the following steps:

[0051] S1, collect the real-time current of the secondary side of the transformer.

[0052] S2, control at least one protection switch corresponding to the first electrical equipment to perform a tripping action when the real-time current of the transformer secondary side is not less than the alarm trip value, so that the real-time current of the transformer secondary side is less than the alarm trip value.

[0053] S3, when the real-time current of the secondary side of the transformer is less than the alarm trip value, drive the protection switches in the trip state one by one according to the first limiting formula to perform the reclosing action.

[0054] Among them, the first limiting formula is I trip Indicates the alarm trip value, s 1 Represents the total number of the first electrical eq...

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PUM

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Abstract

The invention relates to the technical field of power monitoring, and provides an intelligent monitoring system and method for the power utilization condition of a factory power supply network, and the system comprises a current collection unit, a monitoring unit, at least one transformer, at least two protection switches electrically connected with the secondary side of the transformer, at least one first power utilization device, and at least one second power utilization device. The current acquisition unit is used for acquiring the real-time current of the secondary side of the transformer, and the monitoring unit is used for controlling at least one protection switch corresponding to the first electric equipment to execute a tripping action when the real-time current of the secondary side of the transformer is not less than an alarm tripping value, so that the real-time current of the secondary side of the transformer is less than the alarm tripping value. And when the real-time current of the secondary side of the transformer is smaller than the alarm tripping value, the protection switches in the tripping state are driven one by one according to a first limiting formula to execute reclosing action. It can be guaranteed that the secondary side output current of the transformer is smaller than the alarm tripping value, and automatic and intelligent monitoring of a factory power supply network is achieved.

Description

technical field [0001] The invention relates to the technical field of power monitoring, in particular to an intelligent monitoring system and method for power consumption of a factory power supply network. Background technique [0002] In factories, transformers are generally used to drive multiple electrical equipment. Among the multiple electrical equipment, there are often key equipment with a relatively heavy load (such as a grinder in a ceramic factory) and core equipment with a relatively small load (such as a kiln in a ceramic factory). The core equipment cannot be powered off casually, otherwise it is easy to cause a complete shutdown of the production line, which will bring immeasurable losses to the factory. [0003] In existing factories, in order to ensure the normal operation of core equipment and ensure that the production line does not stop, managers often selectively suppress and reduce the commissioning of key equipment based on experience to avoid serious...

Claims

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Application Information

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IPC IPC(8): H02H3/08H02H1/00H02H3/06H02J13/00
CPCH02H3/08H02H1/0007H02H3/06H02J13/00002H02J13/0004Y02P80/10
Inventor 冯金玉李玉梅陆丽江
Owner 冯金玉
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