Method of measuring power grid line loss

A power network and line loss technology, applied in the field of power systems, can solve problems such as the inability to power grid economy, and achieve the effect of a complete system

Inactive Publication Date: 2016-09-28
STATE GRID HEBEI ELECTRIC POWER RES INST +2
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when calculating related indicators such as the line loss rate of the entire network, the power supply of the entire network cannot be used to measure the economy of the power grid as a whole. Therefore, this patent proposes a new index for measuring line loss, and forms a more complete system in combination with the inherent method.

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Embodiment Construction

[0019] The problem to be solved in this patent is the influence of power flow transmission across voltage levels on line loss statistics. This patent defines four new concept indicators for measuring the line loss of the power grid.

[0020] In theoretical calculations, two indicators, the line loss rate of the entire network and the line loss rate of each partial voltage, are generally used when measuring the line loss of the power grid. The sum does not correspond to the power supply of the entire network. This mismatch makes it difficult to compare the line loss rate of the entire network and the line loss rate of each partial voltage, and it is impossible to obtain the impact of each voltage level on the overall line loss of the entire network.

[0021] In this patent, the network power supply, network line loss rate, line loss evaluation index and power distribution index are proposed, which are used to eliminate the influence of power flow cross-voltage level transmissio...

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Abstract

The invention relates to a method of measuring power grid line loss. Analysis and calculation are carried out by combining with actual transportation power of various voltage levels of a power grid, and influences of various voltage levels on the whole power grid line loss are acquired. A new measurement index is proposed based on the line loss and other conventional indexes, and by combining with the conventional indexes, the comprehensive evaluation of the power grid line loss condition is provided.

Description

technical field [0001] The invention belongs to the field of power systems. Line loss is an important comprehensive technical and economic index in the power system. The level of line loss can directly affect the economic benefits of electric power enterprises. The invention specifically relates to an index for measuring power network line loss. Background technique [0002] Line loss can be divided into statistical line loss, theoretical line loss, management line loss, economic line loss and rated line loss. Through the calculation of theoretical line loss, it is possible to know the actual active power and reactive power loss of each component equipment in the power grid, calculate the power loss within a period of time, and find out the weak link in the line loss management of the power grid. [0003] Theoretical calculation of line loss refers to the personnel who are engaged in line loss management. According to the structural parameters and operating parameters of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q50/06
CPCG06Q50/06Y02E40/70Y04S10/50
Inventor 马慧卓胡文平李晓军张蕊胡雪凯
Owner STATE GRID HEBEI ELECTRIC POWER RES INST
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