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Time division power multiplier and implementation method thereof

A time division and multiplier technology, which is applied to instruments, measuring devices, measuring electrical variables, etc., can solve the problems that limit the optimal development of analog multiplier measurement technology and affect the accuracy of power/electric energy measurement, and achieve optimized development and improved accuracy. degree of effect

Active Publication Date: 2020-07-10
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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  • Time division power multiplier and implementation method thereof
  • Time division power multiplier and implementation method thereof
  • Time division power multiplier and implementation method thereof

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Embodiment Construction

[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 this solution, the present invention will be described in detail below through specific implementation modes and in conjunction with the accompanying drawings. The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, 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 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 an implementation method thereof. The time division power multiplier comprises a voltage processing circuit, a current processing circuit,an analog switch, a filter and a V / f converter. The voltage processing circuit comprises a conditioning circuit 1, a phase synchronization circuit, a triangular wave generator and a pulse width modulation circuit. According to the invention, using signal conversion and phase locking technologies, a measured signal and a triangular wave generator of a time division multiplier are subjected to related processing, the triangular wave generator of the time division power multiplier is synchronized with the whole period of a measured signal, and the phase difference in conversion of the product oftwo measured alternating current quantities is reduced, so that the accuracy of a power / electric energy measurement result is improved, and the accuracy of the measurement technology of the time division power multiplier is improved 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, which belong to the technical field of measurement and verification instruments. Background technique [0002] Today, with the rapid development of my country's industrialization, power / electric energy measurement is one of the yardsticks commonly used to evaluate the economic benefits of electricity 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 security and economic benefits of the national grid operation. [0003] The existing active power / electric energy measurement principle technology at home and abroad is mainly divided into: analog multiplier measurement technology, digital multiplier measurement technology. Among them, the measurement principle of analog multiplier is divided...

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Application Information

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Patent Type & Authority Applications(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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