Yaskawa
eLearning
Welcome to this Yaskawa
Technical Training Services Video
that will demonstrate how to use
Yaskawa's Harmonics Estimator Software tool.
In this video we will show you
how to input your customer's
information in system particulars,
add and edit the different motor systems
that need analysis,
and then review the results and generate
a Harmonic Estimation Report
that you can pass on to your customer.
This is the Home screen to the
Harmonics Estimator Software.
From here you can start a new project,
open a previous project
or return to the active project.
Once we start a new project
a splash screen appears that
tells us that there are six steps
to creating a Harmonics Estimation Report.
Step 1 is to enter our project
and customer information.
As well as entering information about
the customer for which the
Harmonics Estimation Report is intended for.
We can also edit our own information.
This information will show up on the
final report and includes a company
address and a prepared by name.
we also have the ability to attach
a custom logo to the report
which will show up on the
final Harmonics Estimation Report.
To attach a custom logo
click the View Select Company logo button,
when the pop-up window appears
click the Select File button to browse to your JPEG.
In this case we've already pre-selected
our company logo,
so we don't have to browse, we will just
click OK to select.
We are now finished with Step 1.
It's time to proceed to Step 2 - Utility Information.
We can begin the Utility Information step by
inputting the customer's utility company.
Next we need to specify to the software
particular size information about the transformers
that serve as our Points of Common Coupling.
The Points of Common Coupling or PCCs for short,
are where many different loads come together
and where the effects of harmonic load
can be assessed.
One PCC is at the utility's transformer
and serves the whole building
and the second is internal to the building
and it's owned by the user.
Size information of the transformers
is in terms of KVA, secondary voltage
and percent impedance.
Or the KVA can be replaced with a short circuit
current rating of the transformer.
If the harmonics at the utility transformer
is not of concern,
PCC1 can be unchecked
and only PCC2 - the user's transformer is
part of the analysis.
Step Number 3 allows us to define
our different motor systems.
We can add multiple different system types
or it can return to the step later and modify an
existing system to test different configurations.
At this point we'll click the Add System button
to begin adding motors and motor controls.
When any system is added to the
harmonic analysis, there is the ability
to identify each system with its own
system identification.
Each system of our example is being fed
from the same PCC2 transformer.
We will have the ability to specify
how much linear load horsepower there is,
how much A1000 controlled horsepower there is
and finally how much U1000 MATRIX
horsepower there is.
We will begin by making our first system
be a 75 horsepower across the line motor
with starter.
The software will assume a typical
.88 power factor for the motor.
It is a single motor so we will
leave the quantity at one and click Add System.
With our linear load system added,
we can proceed to add another load system.
This second system will be
A1000 Drive based systems.
Once we select that our system will be
A1000 based.
We will need to further specify whether it will be
a 6-pulse, 12-pulse or 18-pulse configuration
and whether there are any DC bus reactors
or AC line reactors involved.
The A1000 based systems will
also be 75 horsepower, unlike the across
the line motor of the first system,
we will change the quantity to 2 and add
two 6-pulse, 75 horsepower A1000 drives
and motors as our second system.
For our third and final system, we will
select one of Yaskawa's U1000 MATRIX drives
to control a 50 horsepower motor.
Notice that after we update the
horsepower value, the software changes
the power factor to avail you more
typical for the new motor size.
Now it's time for a quick review.
The navigation tree on the left
allows us to select any of our
three systems and the tabs on the right
show system, data harmonic contribution.
and harmonic data in graph form
for each of the systems individually.
This segways into Step 4,
which is a System Overview.
All three systems we input are shown in red.
Of note is that the 6-pulse,
A1000 driven motors are listed in the
6-pulse with DC link choke column
even though we never selected that option.
This is because the software
knows that that that size A1000 drive
comes with a built-in reactor.
When we are satisfied with the overview
we can continue on.
Step 5 is the Harmonics Estimation
for the total system.
For our example is for all three systems -
the linear, the 6-pulse A1000,
and the U1000 combined.
Some of the information on this tab is information
straight from our Utility Information tab.
However there is some new data that
has been estimated and displayed for us.
According to the Total System Harmonic Estimation,
our current selection would
not allow us to meet IEEE519 at
either Point of Common Coupling.
Since both the across the line motor and the
U1000 driven motor add near
negligible harmonic content,
it must be the 150 horsepower of 6-pulse
A1000 driven motors that are pushing
us over the limit.
Let's go back and see if we can
edit our system to pull us into compliance.
To edit our system, select the 6-pulse load system
and click the Edit System button
Let's change our 275 horsepower A1000s
to a 12-pulse configuration, this should
lower the harmonics generated by each drive.
Click the Update System button and then
return on to Step 4 to see the
150 horsepower A1000 in the 12-pulse column.
To check if we were successful
we can return to Step 5 - the overall
System Harmonic Estimation tab.
According to the software we should now
be in compliance since our estimated total
current demand distortion is at 7.8 percent
which is well below the 15 percent necessary
to meet IEEE519 for this system.
There is a button on the Step 5 tab
to access the graphed Harmonic Estimation
for the total system
at both Points of Common Coupling.
These graphs are also available in our
final report.
The final step, Step 6 is where we
generate a Harmonics Estimation Report.
Our Report Layout is selectable
on the right side of the last tab page.
The report can be a full report with all
available data and graphs or it can just
be a summary page.
Once we have selected our report layout
we can preview the report by clicking
the link View Harmonics Estimator Report.
The report contains all the data we have
input into the software so far, including logos,
addresses and utility information.
Besides showing the harmonic summary for
the whole system as well as
the graphs for both Points of Common Coupling,
our selected report also contains
information and graphs for each
individual system we added as well as
their graphs.
Once you are satisfied with the report contents,
you can close the preview window.
Our final demonstration regards emailing
the whole report to the customer.
Simply click the email Harmonics Estimation Report
and if the software recognizes your computer's
email program, like Outlook,
it will create an email message
with the PDF of the report already attached.
This concludes our review of Yaskawa's
Harmonic Estimation Software tool.
I did not cover every possibility of the software,
but I hope I gave you a preview of its capabilities.
If you have any questions regarding this
or any other Yaskawa product,
please feel free to contact us.