Artelys Knitro 13.2: increased robustness for MINLP

26 November 2022

— We are pleased to announce that Artelys Knitro 13.2 is now available! This new version focuses on robustness improvements for mixed-integer general nonlinear programs (MINLP).

Mixed-integer nonlinear programs offer a very natural way to model many engineering problems where nonlinear functions can capture the complex behavior of physical processes and integer variables can be used to model discrete decisions. Several examples can be found in our extensive library of Artelys Knitro use-case, including MINLP formulations covering applications such as dimensioning EV charging infrastructures, efficient fault detection and isolation (FDI) on complex systems and many more!

Artelys Knitro 13.2 is more robust and consistently converging in shorter time to optimality on MINLP thanks to several developments:

  • Presolve refinements including bound tightening and detection of redundant constraints
  • Improved cut generation and selection strategy
  • New automatic strategies for cut selection
  • Improved multi-start heuristics for non-convex mixed-integer problems

In particular, Artelys Knitro 13.2 solves 12 additional instances on the MINLPLib benchmark compared to Artelys Knitro 13.1. In addition, this new version converges to a global optimum on 9% additional non-convex instances from MINLPLib2.

If you want to know more about Artelys Knitro, you can contact us or visit the dedicated web page.

Innovative grid technologies can improve renewable energy integration in the Latvian grid by up to 40%

Innovative grid technologies can improve renewable energy integration in the Latvian grid by up to 40%

—The power grid faces challenges in managing the increasing amounts of new wind and solar power generation. Grid Enhancing Technologies (GETs) are essential for optimizing the use of the existing infrastructure. Artelys carried out a study for Latvian Transmission System Operator (TSO) AST to assess the renewable generation hosting capacity of the transmission grid and to evaluate the benefits that GETs can provide to renewable integration. The study performed simulations using the open-source optimal flow tool, PowSyBI Metrix. Results show that Grid Enhancing Technologies can increase Renewable Energy Sources (RES) hosting capacity by up to 40% and were announced in the following press release.

read more

subscribe to our newsletters

The collected data will be exclusively processed by the company Artelys for the purpose of keeping you informed about the services and products marketed by our company.

🛈

© ARTELYS • All rights reserved • Legal mentions

Pin It on Pinterest

Share This