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A Method of Dynamically Calculating Power Based on Metering Pulse of Electric Energy Meter

A technology for measuring pulses and electric energy meters, which is applied in the direction of measuring electric power, electric vehicles, measuring electric variables, etc. It can solve the problems of not being able to adapt to load applications and large calculation errors, and achieve the effect of avoiding calculation and comparison and improving error accuracy

Active Publication Date: 2018-10-26
SHANGHAI ELECTRICAL APPLIANCES RES INSTGROUP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is: the existing technical solution only simply converts the metering pulse information to the power, which cannot adapt to the application occasions with a wide range of load fluctuations, especially in the case of extremely high or low loads. Its calculation error is large

Method used

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  • A Method of Dynamically Calculating Power Based on Metering Pulse of Electric Energy Meter

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Embodiment Construction

[0037] In order to make the present invention more comprehensible, preferred embodiments are described in detail below with accompanying drawings.

[0038] combine figure 1 and figure 2 A method for dynamically calculating power based on electric energy meter metering pulses provided by the present invention includes:

[0039] 1. Trend judgment method;

[0040] 2. Converted pulse equivalent;

[0041] 3. Calculation method H;

[0042] 4. Calculation method M;

[0043] 5. Calculation method L.

[0044] 1. Power calculation process:

[0045] After the demand gathering system starts up, start the first event 1.

[0046] Event 1:

[0047] 1.1 Turn on the statistical time timer.

[0048] 1.2 Start the time shard timer before opening.

[0049] 1.3 After capturing the first pulse, end event 1 and trigger event 2.

[0050] 1.4 Statistical time When the value of the timer reaches the duration of the statistical period, event 4 is triggered.

[0051] Event 2:

[0052] 2.1 Tim...

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Abstract

The invention provides a method for dynamically calculating power based on metering pulse of electric energy meter, comprising steps of defining time before a first pulse in a statistic time frame as prior-fragmented time and defining the time after a last pulse in a statistic time frame as post-fragmented time. Compared with the prior art, the method that only performs simple power conversion on metering pulse information can no longer adapt to an application situation where a load varying range is wide, and, particularly under a condition where the load is extremely high or extremely low, the calculation error can be big. As a result, the invention provides a method for dynamically calculating the power based on the metering pulse of the electric energy meter. The method of the invention makes load tendency judgment before calculating power, performs targeted selection on various algorithms to solve and calculate power and can better adapt to the application situation where the load varying range is wide.

Description

technical field [0001] The invention is applied to a client end of a demand collection system with dynamic demand response, and belongs to the technical field of smart grids. Background technique [0002] At present, the dynamic response time of the current electric energy demand adjustment in many domestic demand collection systems is generally agreed to be one beat every 15 minutes, and a simple power conversion is performed on the collected electricity in the last 15 minutes. The conversion method is based on the fact that the reciprocal of the product of the metering pulse interval length and the electric energy constant is the approximate instantaneous power within the duration, and then accumulates and calculates the average value. The conversion error is relatively large in the entire beat, especially when the demand is too high or too low. In some cases, because the pulse time interval is too short or the number of pulses is too small, it is difficult to guarantee th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R21/00
CPCG01R21/00
Inventor 琚长江顾双玲薛吉聂佳滕宇
Owner SHANGHAI ELECTRICAL APPLIANCES RES INSTGROUP
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