Parameter algorithm test system based on IEC61850 sampling values and method thereof

A test method and sampling value technology, applied in the direction of measuring devices, measuring electrical variables, instruments, etc., can solve the problems of immature test specifications and blanks, and achieve the effect of simplifying test operations, accurate test, and objective error analysis

Active Publication Date: 2015-11-25
STATE GRID CORP OF CHINA +2
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Problems solved by technology

However, the current research, theory, testing technology, and testing specifications on this aspect are still immature or still in the blank, and the implementation of "digital measurement" technological innovation is at the right time.

Method used

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  • Parameter algorithm test system based on IEC61850 sampling values and method thereof
  • Parameter algorithm test system based on IEC61850 sampling values and method thereof
  • Parameter algorithm test system based on IEC61850 sampling values and method thereof

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Embodiment Construction

[0042] The present invention will be described in further detail in conjunction with the accompanying drawings and specific embodiments.

[0043] For a digital measurement device, its algorithm accuracy verification includes the following three aspects:

[0044] 1) Algorithm accuracy and resolution of power-off parameter for sinusoidal periodic signal;

[0045] 2) Non-sinusoidal periodic signal (harmonic) power-off parameter algorithm accuracy;

[0046] 3) Accuracy of electric energy integration.

[0047] Among them, the electrical parameters include: voltage effective value; current effective value; phase difference value; power factor value; phase separation and total active power calculation value; phase separation and total reactive power calculation value; apparent power value.

[0048] like figure 1 As shown, the electrical parameter algorithm test system based on IEC61850 sampling value of the present invention includes: computer, IEC61850 protocol data message gener...

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Abstract

The present invention discloses a parameter algorithm test system based on IEC61850 sampling values and a method thereof. The test system comprises a computer, an IEC61850 protocol data message generator, a data message analysis meter, an electrical parameter measurement device and a high precision timer. The IEC61850 protocol data message generator is configured to be a virtual signal generator outputting measured value message according to the time sequence and according to the IEC61850 protocol; and the data message analysis meter is configured to be a data analyzer for analyzing the data message generated by the IEC61850 protocol data message generator and for determining whether sampling values are correct or not. The parameter algorithm test system based on the IEC61850 sampling values and the method thereof provided by the invention may be capable of verifying the precision and the resolution ratio of the electrical parameter algorithm in the sinusoidal periodic signal and verifying the precision of the electrical parameter algorithm and the precision of the electric energy integrating in the non-sinusoidal periodic signal. The parameter algorithm test system is used for detecting the precision of the algorithm on the basis of the IEC61850 data model so that the influence of the time factor is eliminated and the test process is simplified.

Description

technical field [0001] The invention relates to a parameter algorithm testing system and method based on IEC61850 sampling values, and belongs to the technical field of digital substation measurement. Background technique [0002] The on-site measurement values ​​of the digital substation are based on the instantaneous sampling values ​​(SV) of voltage and current signals based on the IEC61850 data communication protocol. The voltage and current signal sampling values ​​are separated by analysis, and the electrical parameter values ​​such as voltage effective value, current effective value, power value, and phase are calculated through a certain numerical algorithm, and the electric energy value within a period of time can also be obtained by continuously accumulating the instantaneous power value. It can be seen from this that digital measuring equipment is a pure numerical calculation equipment or algorithm calculator, and the algorithm and accuracy of its parameters refle...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R35/00
Inventor 穆小星徐晴刘建田正其周超祝宇楠
Owner STATE GRID CORP OF CHINA
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