Reading active energy with ADE7754

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houssem_daff

Joined: 04 Jun 2007
Posts: 2

04 Jun 2007 23:43 Reading active energy with ADE7754

hello
i'm using an ADE7754 to read the active energy from a triphase network with a PIC16F877.

I could acquire VRMS, IRMS and the active power from each phase separately, but I couldn’t read the total active energy because I don’t have any idea how to manage the ADE7754.
Could you please send me any source code (any language, mcu)

thanks

alberto1683

Joined: 13 Jul 2007
Posts: 19

14 Oct 2007 3:41 Re: Reading active energy with ADE7754

hello friend,,

With the watmode register select the part of formula that you want..

I work with this IC ,,, I can´t get the information of the sign of the power active.

Sometimes the VAENERGY gives me different values,, Do you see the same??

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Naveed Ahmed

Joined: 31 Aug 2008
Posts: 22
Location: Pakistan

03 Nov 2009 17:12 Re: Reading active energy with ADE7754

Hi dears!

I have designed three phase wireless smart energy meter using ADE7754 chip. And calculated voltage, current, active power, apparent power, energies, power factor etc.

But ADE7754 does not calculates reactive power. Any guidance plz. Can i find reactive power sign???

Thanks dear.

Naveed

issaiass

Joined: 21 Oct 2004
Posts: 50
Helped: 2

11 Nov 2009 2:17 Reading active energy with ADE7754

Simplest way is S2 = P2 + Q2, where 2 means power of 2, S = apparent power, P=active power, Q=reactive power.

Another way is integrating, is on a application note on analog devices.