Parallel search method for generation of calculation bus of power distribution network
A technology for calculating busbars and searching methods, applied in the field of power system, can solve problems such as difficulty in calculating busbars, and achieve the effect of meeting real-time requirements and high search efficiency
Active Publication Date: 2014-03-05
STATE GRID CORP OF CHINA +3
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[0004] Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide a parallel search method for distribution network calculation bus generation, which solves the problem of calculation bus generation and difficulty in completing it in ten seconds. The bus generation process is parallelized, and the calculation bus generation algorithm can be linearly accelerated while ensuring thread safety, so as to realize the calculation bus generation of several seconds for large-scale distribution networks
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[0027] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.
[0028] One, the following technical terms appearing in the present invention are explained:
[0029] Terminal: The physical endpoint of the feeder segment, switch, and distribution transformer.
[0030] Node: Two or more terminals connected together form a node.
[0031] Feeder segment: It is a section of distribution line in which the magnitude and direction of the current do not change, but the two ends of the line are where the magnitude or direction of the current changes.
[0032] Feeder: A section of distribution line that starts from the secondary side of the transformer in the substation and ends at the end of the line.
[0033] Distribution transformer: load transformer, which can refer to the load.
[0034] Physical bus: that is, the real bus, located in the substation, switch station, ring network cabinet.
[0035] Vir...
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The invention relates to a method applied to an electric power system, in particular to a parallel search method for generation of a calculation bus of a power distribution network. According to the parallel search method for the generation of the calculation bus of the power distribution network, for the development of a radial power distribution network, searching is conducted starting from multiple feeder lines, and multiple probes search for nodes along the feeder lines and switches. When the probes of two threads 'collide' with each other, namely a node is locked by one probe firstly, the other probe needs to retreat to a node on the outer side of the closest feeder line on a retreating path of the probe along the retreating path instead of operating the node when the probe touches the node. By the adoption of the processing mode, safety of the threads can be guaranteed, and the integrity of the calculation bus is guaranteed. The parallel search method for the generation of the calculation bus of the power distribution network achieves the generation of the calculation bus of the power distribution network and solves the problem that the generation of the calculation bus of the power distribution network cannot be completed within ten seconds.
Description
technical field [0001] The invention relates to a method for a power system, in particular to a parallel search method for generating a calculation bus in a distribution network. Background technique [0002] The basic component types of distribution network include busbars, feeder segments, circuit breakers, load switches, knife switches, distribution transformers, etc. There are many types and are too trivial to be directly used in electrical calculations of distribution networks. Electrical calculations are often required to be based on busbars and are carried out for busbars and feeder segments. Therefore, it is necessary to merge the nodes at both ends of all switches in the closed state in the distribution network to generate a calculation bus (also known as a virtual bus), so that electrical calculations such as power flow and short circuit can be performed, that is, the generation of calculation bus in the distribution network is a basic technology. [0003] For la...
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Inventor 马康刘军刘海涛吕广宪
Owner STATE GRID CORP OF CHINA