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What's New in MATPOWER 7.0

Released Jun 20, 2019

Below is a summary of the changes since version 7.0b1 of MATPOWER. See the CHANGES.md file for all the gory details. For release notes for previous versions, see Appendix H of the MATPOWER User's Manual.

New Features:

  • Three new variants of the standard Newton AC power flow, for a total of four, including both nodal power and current balance constraints and both polar and cartesian representations of voltage. See the new pf.current_balance and pf.v_cartesian options. Thanks to Baljinnyam Sereeter.
  • Docker image tagged matpower/matpower-desktop, providing a pre-packaged Ubuntu desktop environment with Octave, MATPOWER, and the MATPOWER Extras all pre-installed. See the docker/MATPOWER-Docker.md page for more details. Thanks to Richard Lincoln.
  • New options:
    • pf.current_balance and pf.v_cartesian control formulation used for Newton AC power flow. Thanks to Baljinnyam Sereeter.

New Website

Other Improvements:

  • Update versions of included packages:
    • MIPS 1.3.1.
    • MOST 1.0.2.
    • MP-Test 7.0.
  • Improve performance of makeYbus(). Thanks to Binbin Chen.
  • Add support for IPOPT solver under Octave, including in the Travis-CI testing. Thanks to Richard Lincoln.
  • Add support for YALMIP, SeDuMi and SDPT3 to be recognized under Octave. Thanks to Richard Lincoln.
  • Add 'clear_cache' options to have_fcn() (see #65) to facilitate re-checking for optional functionality after changes to the MATLAB/Octave path.

Bugs Fixed:

  • Fix #53 where certain OPF cases (e.g. case33bw) resulted in a fatal error under versions of MATLAB prior to R2016b (v9.1). Thanks to Jane Cheung.
  • Fix #56 where save2psse was missing entries for two transformer columns, namely, VMA1 and VMI1. Thanks to Amin Gholami.
  • Fix #57 where save2psse always used 1 for the CKT number, even for parallel branches or transformers. Thanks to Amin Gholami.
  • Fix bug in have_fcn() where it would incorrectly mark Gurobi as available even if it had an expired license or failed for some other reason.
  • Fix #60 by adding missing generator at slack bus in RTE cases. Affects the following cases:
    • case1888rte
    • case1951rte
    • case2848rte
    • case2868rte
    • case6468rte
    • case6470rte
    • case6495rte
    • case6515rte Thanks to Jean Maeght.

Incompatible Changes:

  • Eliminate unnecessary reordering of on-line generators (sorted by increasing bus index) from ext2int(). The order is now left unmodified by ext2int(). This change should only affect user code that explicitly depends on the order of generators with internal numbering (hopefully quite rare).