Method and system for dividing scheduling period of power distribution network

A technology of scheduling cycle and distribution network, applied in electrical components, circuit devices, AC network circuits, etc., can solve problems such as low accuracy and efficiency

Active Publication Date: 2016-01-20
SICHUAN UNIV
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  • Application Information

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Problems solved by technology

[0006] For this reason, what the present invention is to solve is the problem that the accuracy and efficiency of the division method of the existing power distribution network scheduling period are low

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  • Method and system for dividing scheduling period of power distribution network
  • Method and system for dividing scheduling period of power distribution network
  • Method and system for dividing scheduling period of power distribution network

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Embodiment Construction

[0031] figure 1 It shows a distribution network structure diagram, the network has 3 generator nodes, namely BUS-1, BUS-7 and BUS-8, and the generator nodes are equipped with adjustable power distribution equipment; 11 load nodes are respectively BUS-2, BUS-3, BUS-4, BUS-5, BUS-6, BUS-9, BUS-10, BUS-11, BUS-12, BUS-13 and BUS-14, a scheduling period of the network for 24h. Ideally, the action of the switchgear should be completely in accordance with the change of the load, but in order to prolong the service life, the number of operations of the switchgear has a clear limit in a dispatch cycle, assuming that the adjustable equipment in the distribution network is in a The total number of actions in the scheduling cycle cannot exceed 4 times.

[0032] An embodiment of the present invention provides a method for dividing the dispatching period of the distribution network, which can be used to divide the dispatching period of the distribution network, such as figure 2 The met...

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Abstract

The invention provides a method and a system for dividing a scheduling period of a power distribution network. The method comprises the steps of S1, acquiring load data of n nodes in the power distribution network within a specified scheduling period; S2, calculating fluctuation degrees of all bisection solutions of the scheduling period by using the load data, and dividing the scheduling period into two time periods according to the scheduling period bisection solution with the fluctuation degree being the minimum; judging whether the number of the divided time periods is less than a preset number or not, executing a step S4 if the number of the divided time periods is less than the preset number, and otherwise, stopping division; S4, calculating fluctuation degrees of all bisection solutions of each time period by using the load data, and respectively determining a time period bisection solution with the fluctuation degree being the minimum corresponding to each time period; S5, determining a time period bisection solution with the fluctuation degree being relatively small; and S6, further dividing the corresponding time period into two time periods according to the time period bisection solution with the fluctuation degree being relative small, keeping the rest of the time period being unchanged, and returning back to the step S3.

Description

technical field [0001] The invention relates to the field of distribution network dispatching, in particular to a method and system for dividing the dispatching period of a distribution network. Background technique [0002] The distribution network is the link connecting end users with power generation and transmission systems. The distribution network directly faces the end users, and its operation will greatly affect the daily life and production of the whole society. Usually, in order to optimize the operating state of the distribution network, the dispatching and operating personnel of the distribution network will operate the adjustable equipment in the network according to the change of the network load, such as tie switches, on-load tap changer transformers, reactive power compensation devices, etc. However, due to factors such as the service life of the equipment, it is impossible for these adjustable equipment to operate frequently, and the number of actions withi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00
Inventor 许立雄徐兰兰刘剑刘洋
Owner SICHUAN UNIV
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