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Arc suppression coil parallel operation control method and system

An arc suppression coil and operation control technology, which is applied to emergency protection circuit devices, electrical components, and emergency protection circuit devices for limiting overcurrent/overvoltage, etc., and can solve the problems of incapable of compensation current dynamic balance adjustment of arc suppression coils.

Active Publication Date: 2020-06-09
四川旭华源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a method for controlling the parallel operation of arc suppression coils, which solves the safety problem caused by

Method used

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  • Arc suppression coil parallel operation control method and system
  • Arc suppression coil parallel operation control method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Such as figure 1 As shown, a control method for parallel operation of arc suppression coils includes the following steps:

[0039] S1: When the arc-suppression coils are running in parallel, set the sub-controller connected to any one of the arc-suppression coils to active compensation mode, and set the sub-controllers connected to the remaining arc-suppression coils to fixed compensation mode;

[0040] S2: All sub-controllers set to fixed compensation mode detect the compensation current value of the arc suppression coil connected to it, and send the compensation current value information to the main controller, and the main controller obtains the arc suppression coil according to the compensation current value information Compensate the current value, and judge whether the compensation current value of the arc suppression coil is greater than the maximum compensation threshold of the arc suppression coil; S3, otherwise, step S2 will be repeated;

[0041] S3: The mai...

Embodiment 2

[0049] Such as figure 2As shown, this embodiment provides a control system for parallel operation of arc suppression coils, including four bus tie switches, namely the first bus tie switch 1, the second bus tie switch 2, the third bus tie switch 3 and the fourth bus tie switch Switch 4, 4 arc suppression coils, i.e. the first arc suppression coil 5, the second arc suppression coil 6, the third arc suppression coil 7 and the fourth arc suppression coil 8, 4 sub-controllers, namely the first sub-controller 9 , the second sub-controller 10, the third sub-controller 11 and the fourth sub-controller 12, the main controller 13 and the control background 14, wherein each arc suppression coil and the bus coupler on the bus connected to the arc suppression coil The switches are all connected to the same sub-controller, and all sub-controllers are connected to the main controller 13 through the communication bus, and the main controller 13 is connected to the control background 14, and...

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Abstract

The invention relates to an arc suppression coil parallel operation control method and system. The method comprises the steps that S1, any one of sub-controllers is set to be in an active compensationmode, and the remaining sub-controllers are set to be in a fixed compensation mode during the parallel operation of arc suppression coils; S2, all the sub-controllers set to be in the fixed compensation mode detect compensation current values of the arc suppression coils connected with the sub-controllers and send compensation current value information to a main controller, the main controller judges whether the compensation current values of the arc suppression coils are greater than the maximum compensation threshold value of the arc suppression coils or not according to the compensation current value information, if it is judged that there is an arc suppression coil with the compensation current value exceeding the maximum compensation threshold value of the arc suppression coil, the step S3 is executed, and otherwise, the step S2 is repeated; and S3, the main controller dynamically adjusts the compensation current of the arc suppression coils, and the step S2 is repeated. According to the method, the problem that the compensation current of the arc suppression coils cannot be subjected to dynamic balance adjustment during parallel operation of the arc suppression coils is solved.

Description

technical field [0001] The invention relates to the technical field of arc suppression coils, in particular to a method and system for controlling parallel operation of arc suppression coils. Background technique [0002] With the continuous improvement of the security and reliability requirements of distribution network power supply, the State Grid has invested more and more in the construction of smart distribution network. At the same time, with the continuous improvement of safety awareness, more and more power distribution systems adopt the grounding method of the neutral point through the arc suppression coil. [0003] Traditional arc suppressing coil controllers can generally only achieve two sets of parallel operation. The control method adopts the bus-coupled parallel operation signal as the blocking signal, which is connected to the controller. The closed controller of the bus tie automatically switches to fixed compensation, and the one that is not connected to ...

Claims

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Application Information

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IPC IPC(8): H02H9/08
CPCH02H9/08Y02E40/30
Inventor 陈旭辉晏艳霞
Owner 四川旭华源科技有限公司