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Intelligent low-voltage load automatic transfer control device and control method thereof

A low-voltage load and control device technology, which is applied in the monitoring of distribution transformers and box-type transformer double incoming lines, power distribution room, intelligent low-voltage load automatic transfer control device and its control field, can solve the problem of high probability of failure and failure Long power outage time, untimely restoration of power supply and other problems, to achieve the effect of shortening power outage time, reducing economic losses, and improving power supply reliability

Inactive Publication Date: 2015-01-28
STATE GRID CORP OF CHINA +2
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Problems solved by technology

[0002] In the low-voltage power distribution room powered by dual power supplies, each power supply is powered separately and independently during normal power supply. When there is a power cut or a fault occurs on one side, it is generally necessary for the staff to rush to the site to manually operate. Line and bus tie switch to complete the power supply transfer; when the power supply is restored on one side, it is still necessary for the staff to rush to the scene to restore the initial state of the power supply.
And because there are many low-voltage users, the probability of failure is relatively high, so it also greatly affects the reliability of power supply

Method used

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  • Intelligent low-voltage load automatic transfer control device and control method thereof
  • Intelligent low-voltage load automatic transfer control device and control method thereof

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Embodiment Construction

[0030] The present invention will be further described below in conjunction with specific embodiments and accompanying drawings, but the protection scope of the present invention should not be limited thereby.

[0031] Combine below figure 1 , figure 2 , an intelligent low-voltage load automatic transfer control device and its control method of this embodiment will be described in detail.

[0032] Such as figure 1 As shown, an intelligent low-voltage load automatic transfer control device includes a main processor 1, a memory unit 2 connected to the main processor 1, a DSP processing unit 3, an FPGA unit 4, a switch input unit 6, a communication unit 7, The remote control output unit 8 and the human-computer interaction unit 9, and the power supply unit for the above-mentioned units, the input end of the DSP processing unit 3 is connected with the analog conversion unit 5, and analog quantities such as voltage and current pass through the analog conversion unit 5 After the...

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Abstract

The invention discloses an intelligent low-voltage load automatic transfer control device and a control method thereof. The control device comprises a main processor, a storage unit connected with the main processor, a DSP processing unit, an FPGA unit, an on-off input unit, a communication unit, a remote control output unit and a power supply unit for supplying power to the preceding units. The control method includes the steps that remote signaling and remote measurement information of two low-voltage incoming lines is collected, when power rationing occurs or a power supply on one side breaks down, incoming line and bus coupler switches are turned on and off after logic judgment is automatically carried out, and accordingly power supply transfer is finished and the initial state of power supply is restored. The traditional mode that a worker rushes to a site and the switches are manually turned on and off is replaced, power-off time is greatly shortened, economic loss of users is reduced, power supply reliability is improved, and meanwhile, labor intensity of workers and on-site work risks are reduced.

Description

technical field [0001] The invention relates to an intelligent low-voltage load automatic transfer control device and a control method thereof. It has the function of reclosing backup automatic switching and the function of restoring power supply operation, belongs to the field of power system automation, and is suitable for power distribution rooms, distribution transformers, and box-type transformers. Incoming monitoring. Background technique [0002] In the low-voltage power distribution room powered by dual power supplies, each power supply is powered separately and independently during normal power supply. When there is a power cut or a fault occurs on one side, it is generally necessary for the staff to rush to the site to manually operate. Line and bus tie switch to complete the power supply transfer; when the power supply is restored on one side, it is still necessary for the staff to rush to the scene to restore the initial state of the power supply. And because th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J13/00H02J9/06H02H3/06
CPCY02B70/30Y02B90/20Y02E60/00Y04S10/20Y04S20/12Y04S20/20Y04S20/248
Inventor 吴敏孔琳玲陈可硕祝佳囡
Owner STATE GRID CORP OF CHINA
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