Automatic control device and method for power grid frequency based on deflector

An automatic control device and grid frequency technology, applied in the direction of reducing/preventing power oscillation, etc., can solve the problem that the regional small grid cannot effectively adjust the frequency beyond the limit

Inactive Publication Date: 2019-03-29
云南电网有限责任公司怒江供电局
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] This application provides a power grid frequency automatic control device and method based on a deflection device to solve the technical problem in the prior art that the frequency limit cannot be effectively adjusted in a small regional power grid

Method used

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  • Automatic control device and method for power grid frequency based on deflector
  • Automatic control device and method for power grid frequency based on deflector
  • Automatic control device and method for power grid frequency based on deflector

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Embodiment Construction

[0036] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described The embodiments are only some of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0037] The deflection device is the mechanical protection device of the impact type hydro-generator set, which is widely used in the load shedding and high-frequency cut-off of the impact type hydro-generator set, and can quickly cut off the unit under the condition that the impact type hydro-generator set does not go off-grid load. Before t...

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Abstract

The invention discloses an automatic control device and method for power grid frequency based on a deflector. The device includes a box body, a push button switch, a power supply module, and an integration operation assembly. A switch mounting opening is disposed on one side surface of the box body; the push button switch is inlayed in the switch mounting opening; the integration operation assembly and the power supply module are fixed in the box body; the integration operation assembly includes an operation processor, and a switching value input module, an analog quantity input module, and aswitching value output module separately connected to the operation processor; the power supply module is connected to the operation processor through the push button switch; the switching value inputmodule is used for collecting switching value information; the analog quantity input module is used for collecting analog quantity information; and the switching value output module is used for receiving an output instruction of the operation processor, wherein the output instruction includes opening of the deflector or closing of the deflector. The automatic control device participates in regional power grid frequency control by utilizing the deflector, ensures stable operation of regional power grid system frequency, and enables the safety defense performance of an electric power system tobe improved.

Description

technical field [0001] The present application relates to the technical field of power system security, and in particular to a device and method for automatic control of power grid frequency based on a deflector. Background technique [0002] Frequency is an important indicator reflecting the balance between supply and demand of active power in the power system. If the grid frequency exceeds the upper or lower limit, it will bring serious consequences to the safety of generator sets, grid systems and electrical equipment. Therefore, it is necessary to effectively control the grid frequency . The regional power grid refers to the power network regulated and managed by the provincial dispatching center. The regional power grid is the current main power grid operation and power supply mode. It coexists with the regional power grid and there are regional small power grids. The regional small power grid refers to the local dispatching center below the provincial level. The regio...

Claims

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Application Information

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IPC IPC(8): H02J3/24
CPCH02J3/24
Inventor 普碧才李绍荣杨修正刘晓欣孔碧光冯建辉佘有明霍智锋英自才
Owner 云南电网有限责任公司怒江供电局
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