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Intelligent power system anti-disorder reverse power transmission method

A power system, reverse power transmission technology, applied in circuit devices, electrical components, emergency protection circuit devices, etc., can solve problems such as danger, no control method in the power supply network, and disorder of the power supply network.

Active Publication Date: 2019-01-18
国网山东桓台县供电公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the gradual increase of power generation equipment for enterprises or ordinary power users, similar to electric vehicles, large batteries, solar panels, etc., which have the possibility of reverse power transmission, it is very likely that the power will be reversely sent into the power supply network through the transmission line, which will cause The electric energy of the power supply network is in disorder, and at the same time, it is very possible that the line that has been disconnected upstream may be charged during maintenance, which is very dangerous; users with power generation equipment are often divided into two categories, one is to The power supply network management unit applied for and was approved, and the other type was not approved by the power supply network, which caused the management relationship between the power supply network and users to be very chaotic. problem can't be solved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0089] Embodiment 1: The power system intelligent anti-disorder anti-power transmission method described in the present invention includes a power supply network and users who own power generation equipment, and the power supply network is connected to users who own power generation equipment through power supply lines, and load control is provided on the power supply lines Terminals and gateway smart meters, remote control switches are installed on the power supply line, and the electric operation end of the remote control switch is connected to the gateway smart meters, load control terminals and the dispatching system of the power supply network, and the gateway smart meters, load control terminals and the dispatching system of the power supply network The system controls the opening and closing of the remote control switch through the power direction on the power supply line.

Embodiment 2

[0090] Embodiment 2: On the basis of the structure described in Embodiment 1, the remote control switch is an active power flow control switch,

Embodiment 3

[0091] Embodiment 3: On the basis of the structure described in Embodiment 2, for the users with power generation equipment who pass through the smart meter at the gateway and the load control terminal to measure through the transformer and apply for the approval of the surplus power grid connection:

[0092] (1) An active power flow control switch is installed at the demarcation point, which can accept control commands from remote or gateway smart energy meters or load control terminals. The switch is unconditionally open to the active power flowing from the power supply network to the load side except in the following cases: Active power can flow in this direction:

[0093] A. The user's power generation equipment, gateway smart energy meter or load control terminal detects that there is no voltage on the power supply network side or the voltage value is significantly lower than the set value, but there is voltage on the user side with power generation equipment;

[0094] B....

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PUM

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Abstract

The invention provides an intelligent disordered reverse feeding prevention method for a power system, and belongs to the field of power direction control. The intelligent disordered reverse feeding prevention method comprises a power supply network and a user having power generation equipment, wherein the power supply network is connected with the user having power generation equipment through a power supply line; a load control terminal and a gateway intelligent electric meter are arranged on the power supply line; the intelligent disordered reverse feeding prevention method is characterized in that a remote control switch is arranged on the power supply line; an electric operation end of the remote control switch is connected to the gateway intelligent electric meter, the load control terminal and a scheduling system of the power supply network; the gateway intelligent electric meter, the load control terminal and the scheduling system of the power supply network control on / off of the remote control switch through a power direction on the power supply line; different control modes are implemented aiming at different users; and reverse feeding of the users is effectively controlled.

Description

technical field [0001] The invention provides an intelligent power system anti-disorder reverse power transmission method, which belongs to the field of power direction control. Background technique [0002] With the gradual increase of power generation equipment for enterprises or ordinary power users, similar to electric vehicles, large batteries, solar panels, etc., which have the possibility of reverse power transmission, it is very likely that the power will be reversely sent into the power supply network through the transmission line, which will cause The electric energy of the power supply network is in disorder, and at the same time, it is very possible that the line that has been disconnected upstream may be charged during maintenance, which is very dangerous; users with power generation equipment are often divided into two categories, one is to The power supply network management unit applied for and was approved, and the other type was not approved by the power su...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J13/00H02H11/00
Inventor 张传坤聂巾帼张远镇张晓琴郭秀云顾学霞周浩任琴琴王海燕于国栋胡斌董丽陈雷邱兰田甜杜姗姗杨澜王凯吕倩赵舒铭王志伟田潇路金明张子翘周航路梦琳张骋昊宋振宇刘仕栋彭刚田茂林
Owner 国网山东桓台县供电公司
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