Auxiliary detection method for checking correctness after guiding of automatic power curves

A technology of automatic power and auxiliary detection, which is used in the measurement of electric power, electric vehicles, measuring devices, etc., to achieve the effect of improving work efficiency, saving work time, and reducing work intensity

Inactive Publication Date: 2019-04-02
STATE GRID CORP OF CHINA +3
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  • Auxiliary detection method for checking correctness after guiding of automatic power curves
  • Auxiliary detection method for checking correctness after guiding of automatic power curves

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[0038] Calculation example of daily electricity transmission

[0039] Such as figure 2 In the automatic power curve after setting, the calculation method of the daily power delivery is:

[0040] (4131*1+3912*1+3842*5+4142*12+3842*4+3741*1+4147*1+4554*1+4960*1+5305*9+5605*3+5700*27+5605 *1+5305*16+5605*5+5248*1+4842*1+4436*1+4041*5)*15 / 60

[0041] Among them, the multiplicand (such as 4131) in each cumulative sum unit is the power setting value, the unit is megawatt (MW), the multiplier (such as 1) is the continuous unit time of the power, and 15 represents a time unit (minute ), 60 is the number of minutes in an hour, and the power change during the power up and down process is ignored in this calculation method. The calculation result of the above formula is 120357 MWh.

[0042] Example of Power Plan Calculation

[0043] Such as figure 2 The calculation method of planned power at 0:40 in the middle is:

[0044] 3912+17*10=4082, where 3912 is the power point before 0:40...

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Abstract

The invention discloses an auxiliary detection method for checking correctness after guiding of automatic power curves. According to the method, an intraday transmitted electric quantity of a set intraday automatic power curve is calculated by adoption of an area sum manner according to content of the curve, and an average power value is calculated by adoption of a manner of carrying out averagingafter accumulation, so that the intraday transmitted electric quantity and the average power value can be conveniently compared with a daily electric quantity and an average power value distributed by a scheduling center. The method has the beneficial effects of checking the correctness of set automatic power curves through calculating intraday transmitted electric quantity of the set automatic power curves on the basis of a traditional automatic power function, and comparing practical power through calculating the current planed transmission power so as to monitor the correctness of automatic power plan execution. Through above manner, the working intensity of the operators can be effectively lightened, a lot of working time can be saved, the working efficiency can be improved and the working pressure can be reduced.

Description

technical field [0001] The invention belongs to the field of high-voltage direct current transmission of power systems, and in particular relates to a method for checking automatic power curves of a direct current transmission monitoring system and monitoring of the execution process. Background technique [0002] DC transmission power control (powercontrolofDCtransmissionsystem) a link of DC transmission control system. It keeps the power transmitted by the DC system at a given value. It is a control function belonging to the extreme control level. Usually, the control of the transmission power of the DC transmission is realized by changing the current setting value of the DC current regulator. [0003] According to the adjustment of the power grid operation mode and the daily load change, the actual DC transmission project in operation needs to adjust the transmission power under the arrangement of the dispatching center every day. The adjusted parameters are mainly the ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R21/01
CPCG01R21/01
Inventor 周贵勇黄浩然申艳红刘勇赵丽莹张自朋周玉勇王泽宇史册田艳芳孙英志赵冠华贾帅锋李桂举马宁郭建华李凤龙甄宏宇
Owner STATE GRID CORP OF CHINA
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