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A Hybrid Power Electronic Substation

A power electronic and hybrid technology, applied in electrical components, circuit devices, AC network circuits, etc., can solve the problems of increasing electricity costs, affecting the level of electricity prices, unreasonable, etc., to reduce construction costs, increase flexibility and availability. The effect of controllability and low price

Active Publication Date: 2021-05-11
STATE GRID CORP OF CHINA +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the high cost of equipment, it will affect the level of electricity prices, which may lead to a general increase in electricity costs
This is extremely unreasonable for traditional power users who have no special electricity needs

Method used

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  • A Hybrid Power Electronic Substation
  • A Hybrid Power Electronic Substation
  • A Hybrid Power Electronic Substation

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Experimental program
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Embodiment Construction

[0021] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0022] Such as figure 1 As shown, the hybrid power electronic substation of the present invention includes a primary system; the primary system includes a hybrid power electronic transformer 1 and a substation switchgear 2 composed of several circuit breakers and isolating switches. Among them, the high-voltage side of the hybrid power electronic transformer 1 is connected to the incoming line 4 of the upper power grid through the high-voltage AC bus 3 , and the low-voltage side is connected to various AC and DC load outlets and various DC input and output interfaces through the low-voltage bus 5 . The low-voltage busbar 5 includes a traditional low-voltage AC busbar 51, a custom-made low-voltage AC busbar 52 and a low-voltage DC busbar 53, and the input side of the traditional low-voltage AC busbar 51 is connected to the traditional low-voltage AC ou...

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PUM

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Abstract

The invention relates to a hybrid power electronic substation, which is characterized in that: it includes a primary system; the primary system includes a hybrid power electronic transformer and a switchgear for a substation; the high voltage side of the hybrid power electronic transformer passes through the high voltage AC busbar and The incoming line is connected, and the low-voltage side is divided into a traditional low-voltage AC outlet, a customized low-voltage AC outlet and a low-voltage DC outlet, and the traditional low-voltage AC outlet is connected to the input side of the traditional low-voltage AC busbar, and the customized low-voltage AC outlet is connected to the customized low-voltage AC busbar. The outlet is connected to the low-voltage DC busbar, and each low-voltage busbar is connected to various AC and DC load outlets and DC input and output interfaces to provide corresponding power for them. The invention can be widely used in the construction of power electronic substations.

Description

technical field [0001] The invention relates to the field of planning and design of substations in distribution networks, in particular to a hybrid power electronic substation. Background technique [0002] With the increase of user-side information equipment (such as data centers, computers and microprocessors, communication system equipment, intelligent terminals, sensors and sensor networks), electric vehicle power batteries, semiconductor lighting and other DC power equipment, AC sensitive loads (Mainly refers to personal computers, programmable logic devices, adjustable speed drives, AC contactors, high-pressure gas discharge lamps, and finishing automatic devices or complex machinery for cutting, drilling and metal processing, etc. ) The improvement of power quality requirements, and the wide application of various distributed renewable energy power generation (biomass energy, wind energy, water energy, solar energy, etc.) The power supply mode is transformed from the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/02H02J13/00
CPCH02J13/0079H02J3/02H02J2203/20
Inventor 张祥龙周晖刘颖肖智宏王毅
Owner STATE GRID CORP OF CHINA