Method of Monitoring Voltage Qualification Rate Using Electric Energy Metering Device
A technology of electric energy metering device and voltage pass rate, which is applied in the field of monitoring voltage pass rate by electric energy metering device, can solve the problems of reflecting the authenticity of the supply voltage pass rate, loss of meaning, loss of meaning of line definition, etc., and achieve device transformation and implementation Low cost, improved accuracy and objectivity, and the effect of improving the quality of power supply services
Active Publication Date: 2017-03-08
王成楷 +3
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Problems solved by technology
As a result, the definition of the head end and end of the line is completely meaningless, and accordingly, the monitoring method of the head end and end voltage qualification rate is completely meaningless
[0005] Since all kinds of voltage qualification rate data are realized by power supply enterprises installing special recording devices and providing statistical data, the statistical results are subject to subjective influence, and it is difficult to truly and objectively reflect the authenticity of the power supply voltage qualification rate
In addition, to realize the statistics of the voltage qualification rate data, it needs to invest in special equipment, systems and special personnel for maintenance, which occupies a large amount of funds and human resources.
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[0029] a kind of like Figure 1-3 As shown in the method for monitoring the voltage pass rate by using the electric energy metering device, since the main parameters involved in the voltage pass rate include voltage transformer transformation ratio, upper limit voltage, lower limit voltage, loss of voltage parameters, sampling statistics cycle and hardware clock time calibration The above-mentioned parameters should be preset and stored in the parameter area of the data memory when the metering device is installed. When the metering device is powered on, the meter initialization program will read the relevant parameters and system time into the memory of the MCU.
[0030] (1) Records of voltage pass rate of monitoring points
[0031] Install the improved electric energy metering device at the monitoring point, such as figure 1 As shown, the sampling circuit of the metering device converts the AC voltage analog signal input from the monitoring point into analog-to-digital co...
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The invention discloses a method for monitoring a voltage qualification rate by use of an electric energy metering device. The invention provides a method for monitoring a voltage qualification rate by use of an electric energy metering device in terms of voltage qualification rate monitoring equipment, voltage qualification rate monitoring locations, voltage qualification rate statistical methods, main station construction and the like. The electric energy metering device arranged on a power grid is used as a voltage qualification rate monitoring terminal, and the electric energy metering device is provided with continuous monitoring and a statistical function on voltage deviations caused by slow variations in a normal operation state of a power system. The method for monitoring voltage qualification rate by use of the electric energy metering device has the advantages of low revamping and implementation costs, improved accuracy and objectivity of statistical data on the voltage qualification rate and the like.
Description
technical field [0001] The invention relates to a method for monitoring the qualified rate of voltage, in particular to a method for monitoring the qualified rate of voltage by using an electric energy metering device. Background technique [0002] The voltage qualification rate is one of the important indicators of power quality. The quality of voltage has an important impact on the safe and economical operation of the power system, on ensuring the safe production of users, product quality, and the safety and life of electrical equipment. The qualified rate of receiving terminal voltage reflects an important indicator of the power supply service quality of the power supply enterprise, and is one of the main contents of the supervision of the power supply quality of the power supply enterprise by the power regulatory agency. At present, the realization of power supply enterprises to realize the voltage monitoring of power grids of various voltage levels is mainly realized by...
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IPC IPC(8): G01R19/25
Inventor 王成楷杨子钦李广平
Owner 王成楷
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