ExaJuGO: Exascale Julia Grid Optimization

Simple Julia scrips for solving AC power flow, AC optimal power flow, and security-constrained AC optimal power flow.

These scripts are intended for experimentation with different (possibly, new) methods, formulations, and settings for solving these power system problem. Their implementation, therefore, intentionally avoids excessive encapsulation, which makes other packages difficult to modify by non-developers.

Installation

The implementation requires Julia 1+. After clonning, issue (from a terminal):

$ julia -e "using Pkg; Pkg.activate(\".\"); Pkg.instantiate()"

from the repository directory to install all dependencies (submodules, Julia packages, and Ipopt binaries).

Usage

Power flow

To solve AC power flow, issue:

$ julia /path/to/ACPF.jl /path/to/raw/file.raw /path/to/solution/folder

For example, from the repository folder, issuing:

$ julia ACPF.jl ./examples/500bus/case.raw ./example_acpf_solution

would solve the power flow problem for the 500-bus system in the examples/500bus directory.

Optimal power flow

To solve AC optimal power flow, issue:

$ julia /path/to/ACOPF.jl  /path/to/raw/file.raw /path/to/raw/file.rop /path/to/solution/folder

For example, from the repository folder, issuing:

$ julia ACOPF.jl ./examples/500bus/case.raw  ./examples/500bus/case.rop ./example_acopf_solution

would solve the optimal power flow problem for the 500-bus system in the examples/500bus directory.

Alternatively, you may specify just the directory where case.raw and case.rop files are located, i.e.,

$ julia ACOPF.jl ./examples/500bus ./example_acopf_solution

which, in this case, would produce the same result as the command above.

Security-constrained optimal power flow

To solve security-constrained AC optimal power flow, issue:

$ julia /path/to/ACOPF.jl  /path/to/raw/file.raw /path/to/raw/file.rop /path/to/raw/file.con 
/path/to/solution/folder

For example, from the repository folder, issuing:

$ julia SCACOPF.jl ./examples/500bus/case.raw  ./examples/500bus/case.rop ./examples/500bus/case.con ./example_scacopf_solution

would solve the optimal power flow problem for the 500-bus system in the examples/500bus directory.

Alternatively, you may specify just the directory where case.raw, case.rop and case.con files are located, i.e.,

$ julia SCACOPF.jl ./examples/500bus ./example_scacopf_solution

which, in this case, would produce the same result as the command above.

Authors

ExaJuGO is written by Ignacio Aravena ([email protected]), Nai-Yuan Chiang ([email protected]), and Cosmin G. Petra ([email protected]) from LLNL.

License

ExaJuGO is distributed under the terms of both the MIT license. See LICENSE for details. All new contributions must be made under the MIT license.

Acknowledgments

ExaJuGO has been developed under the financial support of:

• U.S. Department of Energy, Office of Advanced Scientific Computing Research (ASCR): Exascale Computing Program (ECP) and Applied Math Program.
• U.S. Department of Energy, Advanced Research Projects Agency-Energy (ARPA‑E).

LLNL-CODE-2002985