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Flexible interconnection topology design method and system for balancing different source-load structures in power distribution station interval

A distribution station area, balanced technology, applied in the direction of AC networks, electrical components, circuit devices, etc. with the same frequency with different sources, to achieve the effect of improving the reliability of power supply

Pending Publication Date: 2021-08-10
STATE GRID SHANGHAI ENERGY INTERCONNECTION RES INST CO LTD +1
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  • Abstract
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Problems solved by technology

[0004] The technical solution of the present invention provides a flexible interconnection topology design method and system for balancing different source-load structures in distribution station intervals, so as to solve the problem of how to balance the load rate between stations with different economic structures in the same area

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  • Flexible interconnection topology design method and system for balancing different source-load structures in power distribution station interval
  • Flexible interconnection topology design method and system for balancing different source-load structures in power distribution station interval
  • Flexible interconnection topology design method and system for balancing different source-load structures in power distribution station interval

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[0029] Exemplary embodiments of the present invention will now be described with reference to the drawings; however, the present invention may be embodied in many different forms and are not limited to the embodiments described herein, which are provided for the purpose of exhaustively and completely disclosing the present invention. invention and fully convey the scope of the invention to those skilled in the art. The terms used in the exemplary embodiments shown in the drawings do not limit the present invention. In the figures, the same units / elements are given the same reference numerals.

[0030] Unless otherwise specified, the terms (including scientific and technical terms) used herein have the commonly understood meanings to those skilled in the art. In addition, it can be understood that the terms defined by commonly used dictionaries should be understood to have consistent meanings in the context of their related fields, and should not be understood as idealized or ...

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Abstract

The invention discloses a flexible interconnection topology design method and system for balancing different source-load structures in a power distribution station section. The method comprises the steps that a plurality of alternating current loads are arranged at an outlet of the low-voltage side of a station transformer; a plurality of charging devices are connected to the DC bus, and the plurality of charging devices are interconnected and mutually supplied through a single-bus structure; the charging equipment is provided with an energy storage unit with preset capacity; a plurality of data centers are connected to a direct current bus, the plurality of data centers are connected by adopting a bus segmentation structure, and two adjacent data centers are interconnected through a direct current bus circuit breaker; an energy storage unit is configured for each section of bus after segmentation; the energy storage unit is connected to the DC bus through the DC / DC converter. a plurality of load users are connected to the DC bus, wherein the plurality of load users adopt a common DC bus structure; and a path of alternating-current outgoing line on the low-voltage side of the transformer is connected to a direct-current looped network through an AC / DC converter, and the AC / DC converter adopts a pseudo-bipolar wiring mode.

Description

Technical field [0001] The present invention relates to the technical field of low-voltage AC and DC hybrid power distribution, and more specifically, to a method and system for balancing load rates between stations with different economic structures in the same region. Background technique [0002] The distribution station area is one of the important components of the power system, which directly affects local economic development and the quality of users' daily lives. Most of the existing low-voltage stations use a single transformer and single line power supply, which has low reliability, and the power supply between each station is independent and lacks unified management and control. In rural areas, with the construction of beautiful countryside, the government's advancement of rural electrification projects, and the opening up of the capacity of public substations, users in these areas have increasingly higher requirements for power supply reliability, and the origina...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00H02J3/32H02J3/06H02J3/36
CPCH02J3/06H02J3/32H02J3/36H02J3/0073H02J3/0075Y02E60/60
Inventor 徐旖旎刘海涛熊雄季宇孙丽敬邵瑶吴鸣
Owner STATE GRID SHANGHAI ENERGY INTERCONNECTION RES INST CO LTD
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