A time-division power multiplier and its realization method

A time-division and multiplier technology, applied in instruments, measuring devices, measuring electrical variables, etc., can solve problems such as affecting the accuracy of power/energy measurement, restricting the optimization and development of analog multiplier measurement technology, and achieving improved accuracy, phase The effect of reducing the difference and optimizing the development

Active Publication Date: 2022-06-21
国网山东省电力公司营销服务中心(计量中心) +4
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Problems solved by technology

However, the traditional time-division multiplier is limited to the principle itself, the influence of the division number N, the error of the phase shift, and the error caused by its non-ideal integrator, so that the accuracy of the traditional time-division multiplier measurement technology needs to be improved, two of which are AC The phase difference when the quantity needs to be multiplied greatly affects the accuracy of power / electric energy measurement and limits the optimal development of analog multiplier measurement technology

Method used

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  • A time-division power multiplier and its realization method
  • A time-division power multiplier and its realization method
  • A time-division power multiplier and its realization method

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[0024] Below in conjunction with accompanying drawing and embodiment, the present invention will be further described:

[0025] In order to clearly illustrate the technical features of the solution, the present invention will be described in detail below through specific embodiments and in conjunction with the accompanying drawings. The following disclosure provides many different embodiments or examples for implementing different structures of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Furthermore, the present invention may repeat reference numerals and / or letters in different instances. This repetition is for the purpose of simplicity and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. It should be noted that the components illustrated in the figures are not necessarily drawn to scale. Description...

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Abstract

The invention discloses a time-division power multiplier and its realization method. The time-division power multiplier includes a voltage processing circuit, a current processing circuit, an analog switch, a filter and a V / f converter, and the voltage processing circuit includes a conditioning circuit 1. Phase synchronization circuit, triangular wave generator and pulse width modulation circuit. The present invention uses signal conversion and phase-locking technology to correlate the measured signal with the triangular wave generator of the time-division power multiplier, and realize the synchronization of the triangular wave generator of the time-division power multiplier with the entire period of the measured signal, so that the two The phase difference in the transformation of the measured AC product is reduced, thereby improving the accuracy of the power / electric energy measurement results, and improving the accuracy of the time-division multiplier measurement technology to meet most active power / electric energy measurement requirements.

Description

technical field [0001] The invention relates to a time-division power multiplier and a realization method thereof, belonging to the technical field of metrological verification instruments. Background technique [0002] With the rapid development of my country's industrialization today, power / electric energy measurement is one of the commonly used scales for evaluating the economic benefits of electric power in the power industry, and the requirements for its stability, reliability and accuracy are becoming more and more stringent. Therefore, the advancement of power / electric energy measurement technology plays a vital role in the safety and economic benefits of the national grid operation. [0003] The existing active power / electric energy measurement principles and technologies at home and abroad are mainly divided into: analog multiplier measurement technology and digital multiplier measurement technology. Among them, the analog multiplier measurement principle is divide...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R35/04
CPCG01R35/04
Inventor 杜艳张红马俊陈琳徐新光王莉杨剑王者龙张蒙李付存陈祉如代燕杰杨杰
Owner 国网山东省电力公司营销服务中心(计量中心)
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