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Remote automatic control method of high-voltage shut reactor considering safety of system voltage

A system voltage and reactor technology, applied to electrical components, output power conversion devices, conversion equipment that can be converted to DC without intermediate conversion, etc., can solve problems such as high-voltage shunt reactors that have not been proposed, and have not been proposed

Inactive Publication Date: 2010-04-21
NORTH CHINA GRID +2
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Problems solved by technology

Judging from the existing research results, it has not been proposed to realize the automatic switching method of the high-voltage shunt reactor in the existing automatic voltage control (AVC, Automatic Voltage Control) system, nor has it proposed how to Realize switching of high voltage shunt reactor in remote place

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  • Remote automatic control method of high-voltage shut reactor considering safety of system voltage
  • Remote automatic control method of high-voltage shut reactor considering safety of system voltage
  • Remote automatic control method of high-voltage shut reactor considering safety of system voltage

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Embodiment Construction

[0050] The remote automatic control method for high-voltage shunt reactors proposed by the present invention in consideration of system voltage safety is described in detail in conjunction with the accompanying drawings and embodiments as follows:

[0051] In the method proposed by the present invention, for each high-voltage shunt reactor to be automatically withdrawn from operation and automatically resumed into operation, the bus bar to be considered for controlling the high-voltage shunt reactor can be obtained through automatic retrieval based on certain criteria or pre-setting A set S, the voltage of all buses in the set S is used as the input parameter of the judgment function of whether the high voltage shunt reactor operates. For high-voltage shunt reactors that need to be automatically withdrawn from operation and automatically resumed into operation, check whether the bus voltage in the set S is lower than the lower limit. Different buses in the set S have different...

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Abstract

The invention relates to a remote automatic control method of a high-voltage shut reactor, which takes the safety of system voltage in consideration and belongs to the technical field of automatic voltage control of power systems. The method comprises the following steps: setting a bus voltage out-liming aggregative indicator X and taking the bus voltage out-liming aggregative indicator X as the criterion to judge that the high-voltage shut reactor automatically exits from running; and setting a bus voltage restored aggregative indicator X' and taking the bus voltage restored aggregative indicator X' as the criterion to judge that the high-voltage shut reactor automatically restores the commissioning after automatically exiting from running. By acquiring grid data on line and calculating X and X' in real time, the invention realizes the on-line remote automatic control of the high-voltage shut reactor; and the invention can automatically cut off the high-voltage shut reactor in emergency and automatically commission the high-voltage shut reactor after the system restores to normal state, thereby ensuring safe and stable running of the grid.

Description

technical field [0001] The invention belongs to the technical field of automatic voltage control of electric power systems, and in particular relates to a control method of a high-voltage shunt reactor in a substation. Background technique [0002] The high-voltage shunt reactor is an important part of the power transmission system. Its main function is to weaken the power frequency voltage increase caused by the capacitive effect of the long line at no-load or light load. Different from low-voltage capacitive reactors, high-voltage shunt reactors are directly connected to high-voltage or ultra-high-voltage transmission networks. The voltage level is high and the equipment capacity is large. It is very difficult to achieve controllable switching. Generally, it is necessary to calculate the operation mode manually offline. According to the calculation results If it is necessary to switch the high-voltage shunt reactor, it needs to be completed when the equipment is out of ser...

Claims

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Application Information

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IPC IPC(8): H02P13/00
Inventor 张雪轩郭庆来王蓓袁萍李群炬孙宏斌汤磊陈锐李笑蓉贾琳李胜
Owner NORTH CHINA GRID
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