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Method for automatically selecting key sections on load side of electrical partition of power grid

A technology of electrical partitioning and key sections, which is applied in the direction of electrical components, circuit devices, AC network circuits, etc., to achieve the effect of improving accuracy and practicability

Active Publication Date: 2013-12-11
POWER DISPATCHING CONTROL CENT OF GUANGDONG POWER GRID CO LTD +1
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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide an automatic selection method for the key section of the power grid load side based on the electrical partition considering thermal stability and voltage stability. The present invention can automatically obtain the thermal stability and voltage stability of the internal load side of the electric partition Supplement and improve the existing key section automatic discovery system, adapt to the increasingly changeable power grid operation mode, and improve the accuracy and practicability of the automatic discovery of key section of the power grid

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  • Method for automatically selecting key sections on load side of electrical partition of power grid
  • Method for automatically selecting key sections on load side of electrical partition of power grid
  • Method for automatically selecting key sections on load side of electrical partition of power grid

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Embodiment Construction

[0036] The load side of the power grid proposed by the present invention is based on electrical partitions and considers the key section automatic selection method of thermal stability and voltage stability. The detailed description is as follows in conjunction with the accompanying drawings and embodiments:

[0037]The division of electrical divisions in the actual power grid is generally close to one administrative area or several small administrative areas, and the uncertainty of the internal load of electrical divisions often leads to prominent problems of thermal stability and voltage stability. The method of the present invention proposes a method for automatically discovering key sections based on electrical partitions on the load side that considers thermal stability and voltage stability issues, using an automatic discovery method for electrical partitions based on electrical distances ("Transmission Sections Based on Electrical Partitions and Its Automatic Discovery", ...

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Abstract

A method for automatically selecting key sections on a load side of an electrical partition of a power grid includes the steps that the electrical partition is acquired by the adoption of a method for automatically finding the electrical partition based on electrical distance, and power transmission channels are looked up from an unsafe power transmission line in the electrical partition and used as the key sections on the load side, wherein the power transmission channels are closely related with the unsafe power transmission line, and thermal stability and voltage stability problems are prone to occurring in the power transmission channels. The method can online automatically acquire the key sections with outstanding thermal stability and voltage stability problems on the load side inside the electrical partition of the power grid, can complement and perfect an existing system for automatically finding the key sections, can adapt to increasingly variable operation modes of the power grid, and can improve accuracy and practicality for automatically finding the key sections of the power grid.

Description

technical field [0001] The invention relates to an automatic selection method for a key section on a load side of an electrical partition of a power grid, in particular to an automatic selection method for a key section on the load side of a power grid that considers thermal stability and voltage stability based on electrical partitions. Background technique [0002] In today's power grid operation mode, in order to ensure the safe and stable operation of the power grid, the power system operation department often formulates a series of operating rules for the power system to limit the power system to a certain safe operating space. However, the structure of the power system is complex, and the operating rules formulated for it are often specified on a specific weak link of the power grid, which is commonly referred to as a "section". A section is a combination of some transmission lines in the power grid that have the same flow direction and are prone to overload. It is an ...

Claims

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Application Information

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IPC IPC(8): H02J3/00G06F19/00
Inventor 余志文孙宏斌郭庆来卢建刚张伯明郭文鑫谭嫣吴文传向德军赵峰
Owner POWER DISPATCHING CONTROL CENT OF GUANGDONG POWER GRID CO LTD
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