Working with Power and Energy in AVEVA PI System Asset Framework

If you work with Asset Framework (AF), at some point you'll need to work with power and energy. By the end of this tutorial, you'll know how to use AF to automate calculating energy produced or consumed by an asset over a desired time period. Knowing how to do this is incredibly important if embarking on a project involving energy management, or resource management. If watching this tutorial ultimately helps you to enable your company to produce more with less impact on the Earth - I'll be very happy.

In most industries, energy is measured in units like kilowatt-hours (kWh), and power is measured in units like kilowatts (kW). These units have a strange relationship with time, and because the PI System is all about time - the way calculations are configured is a little different to if you were dealing with other units. In this tutorial we'll focus on these units and how the interact with the AF Analysis and Event Frames features.

If you're new to the PI System, I recommend taking the free 1-hour PI System Basics class:

This stream is an extension to our PI Power User learning path. You can find a link to our full learning path for Power Users here:

Want to follow along with me? You can boot the training cloud environment I'm using in this tutorial by purchasing a subscription using the link below, and booting the image "Building PI System Assets and Analytics with AF":

00:00 Intro
03:54 Architecture
07:21 Preparing the Virtual Environment
10:00 Touring the Database
11:09 Creating the Display
12:30 Calculation Options
21:15 Hourly Time Context Energy Calculation
37:07 User-Display Time Context Energy Calculation
51:04 Event Frame Time Context Energy Calculation
1:02:38 Outro

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[davemccarthy]

Thanks. Very helpful video.

I am trying to set up an energy monitoring system. Some of what I am trying to do is very similar to what you show. The main difference is that you are doing the integration in Pi where in my system that integration is already done at the meter level. I read a totalized energy value (KWH) and record that. So my "math" is to calculate the difference in that totalized energy value at 2 time periods. Any suggestions on getting me started with that? Thanks in advance.

[rkosipi]

I am waiting for PI connector & PI Integrator, PI SQL commander related videos as well.

[rkosipi]

Please share demo AF database download link.

[keefa]

That is a very good explanation, it's handy but, the moment we can't add the Calculated value of an event that is very annoying!