General distributed fast load-shedding interface device

An interface device and load shedding technology, which is applied in circuit devices, AC network circuits, electrical components, etc., can solve the problems of difficult real-time control of low-voltage loads and inability to achieve subdivided control of distributed loads, and achieves fast control requirements. The effect of flexible acquisition and fast control, low implementation cost

Inactive Publication Date: 2018-07-06
JIANGSU FRONTIER ELECTRIC TECH +2
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Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art, provide a universal distributed fast load shedding interface device, and solve the technical problems in the prior art that the subdivision control of distributed loads cannot be realized and the real-time control of low-voltage loads is difficult

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  • General distributed fast load-shedding interface device

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Embodiment Construction

[0017] The invention can meet the requirements of user load subdivision and fast load removal during power grid stability control, can overcome the technical problem of insufficient subdivision ability of existing large user load control, and provides a method that can support real-time collection and transmission of user load data , load control real-time output, and a general-purpose interface device that can realize in-depth, fine-grained and fast control of low-voltage loads on the user side, and can realize fast and fine-grained control of power grid stability, while minimizing the impact on users.

[0018] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0019] Such as figure 1 As shown, it is a general-purpose distributed fast load shedding i...

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Abstract

The invention discloses a general distributed fast load-shedding interface device comprising a GOOSE communication module, a serial port acquisition control module, a data processing buffer module anda real-time opening control module. The serial port acquisition control module collects load data and state data of all load branches; the data processing buffer module carries out processing and buffering and then the processed data are transmitted to the GOOSE communication module; the GOOSE communication module uploads the processed load data and state data to a main control device of a network load terminal; and the main control device issues a load control instruction based on the load data and state data, and the load control instruction is transmitted to the real-time opening control module through the GOOSE communication module and the data processing buffer module to realize switching control of all load branches. According to the invention, flexible collection and rapid controlof the low-voltage extended branch load of the user are realized; and the rapid control requirement of the stability control load of the grid and production electricity consumption influence minimization of the user are both considered.

Description

technical field [0001] The invention relates to a universal distributed fast load shedding interface device, which belongs to the technical field of power systems. Background technique [0002] With the continuous increase of incoming electricity and clean energy access from outside the region, if large fluctuations occur, the receiving end power grid will experience instantaneous power balance difficulties, and the problems of grid power shortage and frequency stability will become more prominent. The use of emergency load shedding is still a guarantee An important means for the safe operation of the power grid, but the centralized load shedding method of the safety and stability control system with the 110kV line as the control object can easily trigger production accidents in enterprises, causing large-scale user losses and adverse social impacts. In response to this problem, Jiangsu Power Grid took the lead in building a large-scale source-grid-load friendly interactive ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00H02J13/00
CPCH02J3/00H02J13/00H02J13/00019H02J13/0017Y02E60/00Y04S10/16
Inventor 陆玉军李澄曹海欧王宁陈颢王伏亮葛永高朱洁宁艳张方云包正君朱足君
Owner JIANGSU FRONTIER ELECTRIC TECH
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