Illinois 200 Bus + WECC 240 Bus + IEEE ISONE

[lukelowry]

Description

Had to make one small numerical conditioning change to SEXS-PTI Exciter after rebase.

Adds the Illinois 200 bus case and WECC 240 bus case, and finishes the implementation and documentation of the IEEE New England ISO 39 bus case. Depends on #373 deeply for verification and case data parsing.

I should note that at this point, GridKit is dramatically outperforming PowerWorld. In some instances, it solved nearly 4x faster.

Closes #357

Proposed changes

• WECC 240 Case and solver file
• Illinois 200 Case and solver file
• IEEE 39 Bus finalize
• Polish Texas case docs and examples
• Polish Hawaii case docs and examples
• Small tweak to IEEEST to handle some zero-valued parameters in stabilizer I did not account for originally.

Checklist

• All tests pass. (except on preexisting power electronics issue)
• Code compiles cleanly with flags -Wall -Wpedantic -Wconversion -Wextra.
• The new code follows GridKit™ style guidelines.
• There are unit tests for the new code.
• The new code is documented.
• The feature branch is rebased with respect to the target branch.
• I have updated CHANGELOG.md to reflect the changes in this PR. If this is a minor PR that is part of a larger fix already included in the file, state so.

Further comments

All 5 models start in a steady state now.

I'm waiting on the case comparison CLI args or generally better results comparison be- but visual inspection against the power world simulation confirms the two new models and the cases are being simulated correctly:

Illinois Generator Speed

New England Generator Speed

WECC

Texas

Hawaii

[ianmtaylor1]

Hi Luke,

I built and ran tests for the lukel/cases-add-dev branch. Everything passed, including illinois_pdsim and wecc_pdsim. Is there anything specific you would like me to review?

(PS @pelesh, I've been able to compile GridKit+enzyme+KLU locally. Still no luck on Kestrel. These test results are from my local machine.)

[lukelowry]

Hi Luke,

I built and ran tests for the lukel/cases-add-dev branch. Everything passed, including illinois_pdsim and wecc_pdsim. Is there anything specific you would like me to review?

(PS @pelesh, I've been able to compile GridKit+enzyme+KLU locally. Still no luck on Kestrel. These test results are from my local machine.)

Howdy,

I could only find your GitHub account, but I knew your team was interested in a 200 bus case. If anyone wants to run simulations, they should be able to on this branch until it’s merged!

just as a heads up so yall were aware of this case. you don’t have to leave a review if you don’t have any feedback :)

[abirchfield]

Astounded by the speed. This is great. Thanks, Luke!

[pelesh]

Texas case now runs under 9s on my laptop. All tests pass on my machine.

Please update CHANGELOG and trigger CI pipelines so we can merge this.

[lukelowry]

@pelesh Done! Thank you.