Novel electric energy measurement control module of filtering reactive compensation device

Abstract

The invention relates to a low voltage reactive compensation technique, in particular to a novel electric energy measurement control module of a filtering reactive compensation device. The v novel electric energy measurement control module comprises a central processing unit (CPU), a power module, a voltage resistance network module, a current and voltage conversion module and a measurement module, the measurement module is connected with the CPU, the power module, the voltage resistance network module and the current and voltage conversion module are all connected with the measurement module, and the measurement module adopts a digital signal processor (DSP) chip. The advanced ADE 7880 multifunctional measurement chip with a digital signal processor (DSP) is adopted to serve as a electric energy sampling measurement module, the chip is high in integration level, performance of the chip exceeds requirements of a electric energy meter 0.2-level meter for accuracy and dynamics in industry, the design integrates comprehensive common electric power parameters such as voltage, current, power and electric energy quality analysis of a measuring system and real time waveform display, possibility is provided for fundamental wave and harmonic wave components of various electric power parameters in a controller high speed analytic system, functions of a high-precision three-phase electric energy measuring integrated circuit (IC) are achieved, and the novel electric energy measurement control module is further applicable to measurement of three-phase fundamental wave and harmonic wave parameters and wave forms of various three-wires and four-wires.

Description

technical field [0001] The invention relates to a low-voltage filter reactive power compensation technology, in particular to a novel electric energy measurement control module of a filter reactive power compensation device. Background technique [0002] At present, the traditional power sampling measurement control method of the filter reactive power compensation device is to receive the external measured system voltage and current signals through the precision transformer, and convert the signal into a voltage signal through the compensation conditioning circuit, and the voltage signal is filtered through the anti-aliasing filter circuit. At the same time, an interface circuit needs to be added in the low-pass filtering link and the digital-to-analog conversion link to convert the output signal of the low-pass filter into a signal suitable for digital-to-analog conversion and send it to the A / D analog-to-digital conversion module. The / D analog-to-digital conversion module...

AI Technical Summary

Problems solved by technology

[0003] The electrical energy sampling measurement control signal flow is as follows: figure 1 As shown, the control circuit, control strategy and program algorithm of this electric energy sampling method are relatively complicated and cumbersome, and the requirements for the written program are very high, and the debugging cycle is long

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