floris | A controls-oriented engineering wake model | Functional Testing library
kandi X-RAY | floris Summary
kandi X-RAY | floris Summary
FLORIS is a controls-focused wind farm simulation software incorporating steady-state engineering wake models into a performance-focused Python framework. It has been in active development at NREL since 2013 and the latest release is FLORIS v2.4 in July 2021. The v3 branch of the repository contains an architectural redesign of the software to enable improved performance in AEP calculation and controls optimization. We are actively seeking beta testers for the new framework. If you are interested in using FLORIS to conduct studies of a wind farm or extending FLORIS to include your own wake model, please get in touch! Register for beta testing by completing this form: and join the conversations at GitHub Discussions. For more context and background on previous work in FLORIS, see the documentation at
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Top functions reviewed by kandi - BETA
- Imports data from wind toolkit
- Load wind toolkit hdf5
- Resample wind speed
- Resample the wind direction
- Optimize wake redirection control flow
- Optimizes the wind field
- R Derive downstreams based on wind turbine damping
- Reduce the control variables of the wind turbine
- Calculate the y - plane y - plane
- Calculate the horizontal plane
- Optimize turbine weights
- Reduce the control problem
- Calculate cross - plane cross - plane
- Create windrose from user data
- Visualize a cut plane
- Prints the parameters of the wake velocity model
- Make windrose from user distance distribution
- Plot wind rise
- Calculate turbine AEP
- Generate a discontinuous grid
- Performs a single wake redirection control
- Visualize the layout of turbine locations
- Optimize wake redirection control control flow
- Generate a windrose from the WEB
- Optimize one or more wind wind speed
- R Calculates the turbine area of a wind turbine
floris Key Features
floris Examples and Code Snippets
Community Discussions
Trending Discussions on floris
QUESTION
I have a problem. I've created model called "Flower", everything works fine, i can create new "Flowers", i can get data from them etc. The problem is when I want to use column "owner_id" in SQL query I got an error that this column don't exist, despite I can use it to get data from objects (for example flower1.owner_id). I've deleted my sqlite database several times, made new migrations and used migrate but that still not worked.I also changed name of the column and re-created it, but that still doesn't helped.
My models.py:
...ANSWER
Answered 2021-Jul-06 at 11:05Since owner_id
is declared as a ForeignKey
, it will be available in the actual SQL database as owner_id_id
. The additional prefix _id
is automatically appended by Django for that relational field. When using Django ORM, you would just access it via owner_id
then Django will automatically handle things for you in the background but if you are using raw SQL command, then you have to use the actual table column name which is owner_id_id
. If you don't want such behavior, set the db_column
of the model field with the exact name you want e.g. owner_id = models.ForeignKey(User, on_delete=models.CASCADE, default=1, db_column="owner_id")
.
As stated in Django documentation:
Behind the scenes, Django appends "_id" to the field name to create its database column name. In the above example, the database table for the Car model will have a manufacturer_id column.
Related references:
QUESTION
I am using the Floris library from NREL for Python in order to simulate wind wakes after a wind turbine (see https://github.com/NREL/floris). In the example 1 of section "Getting Started" (see https://github.com/NREL/floris/blob/main/examples/_getting_started/example_00_open_and_vis_floris.py) I am plotting the result for a single turbine. This is the output:
However, I would like to add the side legend bar on the right (see black circle), like in the next figure:
I cannot show the full code because the floris library from NREL has a lot of user-defined functions (this is why I provide the links). The code for the example I mentioned is:
...ANSWER
Answered 2021-Jun-21 at 12:43It has been solved by NREL's team:
QUESTION
Currently I have the following two proto definitions, both .proto files are in same folder:
topmessage.proto:
ANSWER
Answered 2021-Jun-21 at 06:29it's a name problem, instead of using message name when building FileDescriptor, use the name of the .proto file ("topmessage.proto" for example)
QUESTION
Hi,
When searching for methods to make a selection of a dataframe (being relatively unexperienced with Pandas), I had the following question:
What is faster for large datasets - .isin() or .query()?
Query is somewhat more intuitive to read, so my preferred approach due to my line of work. However, testing it on a very small example dataset, query seems to be much slower.
Is there anyone who has tested this properly before? If so, what were the outcomes? I searched the web, but could not find another post on this.
See the sample code below, which works for Python 3.8.5.
Thanks a lot in advance for your help!
Code: ...ANSWER
Answered 2021-Jun-04 at 10:41The best test in real data, here fast comparison for 3k, 300k,3M rows with this sample data:
QUESTION
I'm trying to implement the QR24-Algorithm to calibrate flange/tool and robot/world from this paper by Floris Ernst (2012).
I need to solve an equation M_i*X - Y*N_i = 0
where M_i
and N_i
are known and i from 1 to the number of measurements and X
and Y
are unknown Matrices.
In the paper they combined this equation into a system of linear equations A*w = b
, where A consists of 12*number of measurements rows and 24 columns, so I have a system of linear equations with 24 parameters, where I need at least 2 measurements to solve this system.
To solve this equation, I need to use the QR-Factorization in least square sense because with more measurements, this system has more equations than parameters.
I'm using the OLSMultipleLinearRegression
from the Apache Commons Math library to solve the equation system:
ANSWER
Answered 2021-Jan-10 at 10:42I was able to find a solution to my problem and I want to share it with you.
The problem was not a programming error, but the paper provided an incorrect matrix (the Ai matrix) which is needed to solve the linear system of equations.
I tried to extract a system of linear equations from M*X - Y*N = 0
by myself using the characteristics of homogeneous transformation matrices and rotation matrices. I came up with following solution:
where
The vector bi provided in the paper is fine.
Since Prof. Ernst teaches at my university and I'm taking a course with him, I will try to make him aware of the mistake.
QUESTION
In the first cell of each row I have a header cell with vertically aligned text.
It is displayed as it is supposed to be with plain HTML + CSS. But when using Bootstrap 4 tables, if one of the cell's content grows and the table row height increases, the vertical header text moves right, towards the other cells, overlapping content. This is not happening when not using Bootstrap.
https://jsfiddle.net/onurmatik/y9tLk6dz/13/
HTML
...ANSWER
Answered 2020-Nov-24 at 07:48This happens as long as the rendered height of a cell is more than its width. This is because:
- Rotating a "tall" rectangle (e.g. 1:2 ratio) by
90deg
results in a "wide" rectangle (e.g. 2:1 ratio). - The transformation applied to the
td
elements, rotates them in their current positions without affecting the width and height of the table as a whole.
This animation should demonstrate this better.
I imagine the problem would be the same even without Bootstrap as long as the exact same sizes and ratios are replicated.
One approach to work around this is to wrap the content of the header cells in elements:
QUESTION
I am looking for a way to access the wind speed in each of my turbines. Even though, as far I am concerned, floris works for only one wind speed as input, you should have a way to be able to see the wind speeds at waked turbines, as you need to calculate it in the end to reach the overall wind farm power. Hence, I went to the documentation and what I could find was that on floris.simulation.farm you have a getter that should be able to return a list of the wind speeds over the wind farm. This can be achieved by:
...ANSWER
Answered 2020-Feb-06 at 06:05With v1.1.4 of FLORIS, the code:
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
No vulnerabilities reported
Install floris
A series of examples is included in the examples/ directory. These are ordered from simplest to most complex. They demonstrate various use cases of FLORIS, and generally provide a good starting point for building a more complex simulation.
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