A method and system for calculating theoretical line loss between any two nodes of a power distribution network

A technology of theoretical line loss and calculation method, applied in the direction of calculation, system integration technology, information technology support system, etc., can solve the problem of not being able to obtain a certain area, reduce the work efficiency of on-site dispatchers, and reduce the work efficiency, so as to improve the economy, Strong practical value and the effect of reducing network loss

Active Publication Date: 2016-04-06
NORTH CHINA ELECTRIC POWER UNIV (BAODING) +1
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Problems solved by technology

[0008] However, the problem with this technology is that it can only classify and count the line losses of components such as lines, transformers, and capacitors, and can

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  • A method and system for calculating theoretical line loss between any two nodes of a power distribution network
  • A method and system for calculating theoretical line loss between any two nodes of a power distribution network
  • A method and system for calculating theoretical line loss between any two nodes of a power distribution network

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Embodiment 1

[0049] This embodiment specifically discloses the theoretical loss calculation between two nodes.

[0050] See attached figure 2 , discloses a schematic diagram of a distribution network with 11 nodes.

[0051] Step S110, obtain component branch and loss step: According to the distribution network operation situation, obtain the node numbers at both ends of the feeder section of the actual distribution network operating feeder, the node numbers of the distribution transformer and load components, the parameters of each component and the power of the load , obtain the feeder root node power, form the node and branch data table required for power flow calculation of the distribution network, use the matching power flow technology to realize the pseudo-measurement and estimation of the load of each non-measurement node, and then use the push forward and back push power flow technology to calculate each Node voltage and branch current, and then calculate the loss of each branch,...

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Abstract

The invention provides a method and system for calculating theoretical line loss between any two nodes of a power distribution network. The method comprises the following steps: obtaining element branch and loss; forming a path matrix; obtaining branches and nodes of a road between any two nodes A and B; obtaining nodes and branches of non-road between any two nodes A and B; carrying out judgment; and summarizing loss. According to the method and system for calculating theoretical line loss between any two nodes of the power distribution network, on the basis of the path matrix and a depth-first search algorithm, the method and system can help distribution network scheduling personnel to summarize and calculate loss of an area between any two nodes of the power distribution network quickly, and know the line loss distribution information, thereby facilitating to find weak spots of a network so as to take optimization measures, reducing network loss and improving economy; and the method and system have higher practical value.

Description

technical field [0001] The invention relates to a calculation method and system for distribution network loss. Specifically, it relates to a method and system for calculating theoretical line loss between any two points of a distribution network. Background technique [0002] Distribution network line loss rate is an important economic and technical index for distribution network operation. Theoretical line loss calculation refers to the calculation of the power loss in transformer windings, transmission line conductors, and series reactor coils that are proportional to the square of the current; transformers related to operating voltage Iron core, capacitor, cable insulation medium, shunt reactor and corona loss, etc. The calculation of theoretical line loss can effectively clarify the transformer loss and line loss, which is conducive to line loss management. Furthermore, the lines with large line loss can be transformed or economically operated to reduce the loss; compa...

Claims

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Application Information

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IPC IPC(8): G06Q50/06
CPCY02E40/70Y04S10/50
Inventor 刘自发刘斌李柯王萌王威李梦渔李韦姝
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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