Optimization method for AC/DC hybrid power distribution system

A technology of AC-DC hybrid and optimization method, which is applied in the direction of AC-DC network circuit layout, AC network circuit, AC network load balancing, etc., can solve problems such as unable to meet the development needs of AC-DC hybrid power distribution system, and improve utilization rate , to achieve the effect of consistency and strong control ability

Active Publication Date: 2021-04-30
TSINGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing planning and design methods cannot meet the development needs of AC-DC hybrid power distribution systems based on power electronic transformers

Method used

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  • Optimization method for AC/DC hybrid power distribution system
  • Optimization method for AC/DC hybrid power distribution system
  • Optimization method for AC/DC hybrid power distribution system

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Embodiment Construction

[0073] Embodiments of the design method of the AC / DC hybrid power distribution system according to the present invention will be described below with reference to the accompanying drawings. Those skilled in the art would recognize that the described embodiments can be modified in various ways or combinations thereof without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and not intended to limit the scope of the claims. Also, in this specification, the drawings are not drawn to scale, and like reference numerals denote like parts.

[0074] Source load storage: the meaning of power supply, load, and energy storage. Correspondingly, the equipment includes power supply equipment, energy storage equipment, and load equipment.

[0075] figure 1 It is a schematic flowchart of the design method of the AC / DC hybrid power distribution system according to the embodiment of the present invention. Such as fig...

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Abstract

An optimization method for an AC-DC hybrid power distribution system, comprising the following steps: dividing the system into AC power supply partitions and DC power supply partitions, and determining the power supply voltage level, power quality requirements, reliability levels and Power supply power requirements; according to the system partition and the number of system power sources, determine the required quantity of power electronic transformers, establish the system partition power supply network structure, and initially design the capacity of each port of the power electronic transformer; establish a three-layer optimization model to optimize the system. The first layer is For the optimization of the capacity of each port of the power electronic transformer, the second layer is the optimization of the network power supply path, and the third layer is the optimization of the power supply-load-energy storage partition; the iterative solution of the three-layer model is carried out until the end of the iteration. The invention realizes the collaborative planning of various sources, loads, and storage resources in the AC / DC hybrid power distribution system and the power distribution network, and satisfies the access of various distributed power sources and energy storage in the system, as well as the application requirements of power electronic transformers.

Description

technical field [0001] The invention relates to distribution network planning technology, in particular to an optimization method for an AC / DC hybrid power distribution system. Background technique [0002] Compared with traditional distribution transformers, power electronic transformers have power flow control capabilities and can customize the output voltage. Its application can have a profound impact on the shape and operation mode of the current distribution network. In the future, there will be a large number of distributed power sources, energy storage devices, and AC and DC loads in the distribution network, with different access requirements, and the uncertainty of the power flow in the distribution network will be greatly enhanced. The power electronic transformer will become the energy router of the future distribution network, which can provide customized access services for sources, loads, and storages, and at the same time improve the operation and control capa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/38H02J3/46H02J3/32H02J3/06H02J4/00
CPCH02J3/382H02J3/46H02J3/32H02J3/06H02J4/00H02J2203/20
Inventor 程林田立亭江轶万宇翔齐宁黄强袁晓冬张宸宇
Owner TSINGHUA UNIV
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