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A primary frequency modulation optimization control method and system

A technology of optimizing control and changing direction, applied in the direction of reducing/preventing power oscillation, AC network circuit, electrical components, etc., can solve the problems of primary frequency modulation performance adjustment lag, poor accuracy, insufficient output, etc.

Active Publication Date: 2022-06-28
JIANGSU FRONTIER ELECTRIC TECH +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to solve the deficiencies in the prior art, the present invention provides a primary frequency modulation optimization control method and system, which improves the problems of primary frequency modulation performance adjustment lag, insufficient output and poor precision caused by the inconsistency between the AGC command and the primary frequency modulation command

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  • A primary frequency modulation optimization control method and system
  • A primary frequency modulation optimization control method and system
  • A primary frequency modulation optimization control method and system

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Embodiment 1

[0017] A primary frequency regulation optimization control method, comprising: when a unit receives an AGC command and a primary frequency regulation command at the same time, comprehensively selects the AGC command according to the current actual load of the unit, the AGC command, the change direction of the AGC command and the change direction of the primary frequency regulation command. Switching command AGCm; using the historical data of the actual load of the unit, predict the change of the actual load of the unit under the action of the switching command AGCm of the AGC command after the set time period, carry out the calculation of the primary frequency modulation compensation of the unit, and obtain the preset value of the primary frequency modulation load of the unit; In the calculation of the primary frequency regulation compensation of the unit, the influence of the pressure deviation on the unit is comprehensively considered, and the set value of the primary frequenc...

Embodiment 2

[0035] Based on the primary frequency modulation optimization control method described in the first embodiment, this embodiment provides a primary frequency modulation optimization control system, including:

[0036] The first module, namely the intelligent cooperative switching selection module of AGC command and primary frequency regulation command, is used for when the unit receives AGC command and primary frequency regulation command at the same time, according to the current actual load of the unit, AGC command, the change direction of AGC command and primary frequency regulation command. change direction, comprehensively select the switching command AGCm of the AGC command;

[0037] The second module, the primary frequency modulation command compensation module with prediction function, is used to use the historical data of the actual load of the unit to predict the change of the actual load of the unit under the action of the switching command AGCm of the AGC command aft...

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Abstract

The invention discloses a primary frequency modulation optimization control method and system in the technical field of primary frequency modulation, which improves the problems of primary frequency modulation performance adjustment lag, insufficient output and poor precision caused by inconsistency between AGC instructions and primary frequency modulation instructions. Including: a. When the unit receives the AGC command and the first frequency regulation command at the same time, according to the current actual load of the unit, the AGC command, the change direction of the AGC command and the change direction of the primary frequency regulation command, comprehensively select the switching command AGCm of the AGC command; b. Use the historical data of the actual load of the unit to predict the change of the actual load of the unit under the action of the switching command AGCm of the AGC command after the set time length, and perform the compensation calculation of the unit’s primary frequency regulation to obtain the preset value of the unit’s primary frequency regulation load; c. In the primary frequency regulation compensation calculation, the influence of the pressure deviation on the unit is comprehensively considered to determine the primary frequency regulation load set value.

Description

technical field [0001] The invention belongs to the technical field of primary frequency modulation, and in particular relates to a primary frequency modulation optimization control method and system. Background technique [0002] At present, the grid connection of new energy power generation is gradually increasing, and the proportion of new energy is steadily increasing. In order to improve the consumption of new energy power, the primary frequency regulation performance of thermal power units is particularly important. However, in the actual primary frequency regulation process of thermal power units, the primary frequency regulation performance It is not ideal, mainly in the problems of insufficient frequency regulation output, poor frequency regulation accuracy and lag in the regulation process. Thermal power plants do not pay enough attention to the functions of load regulation and frequency regulation that thermal power units should play. In the future, the problems t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/24H02J3/46
CPCH02J3/241H02J3/466H02J2203/10
Inventor 高爱民崔晓波于国强殳建军张天海张卫庆杨小龙肖新宇史毅越汤可怡李玮胡尊民刘娜娜
Owner JIANGSU FRONTIER ELECTRIC TECH
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