Power simulation matrices, Li Peijie, Inst. of Power Systems, Guangxi Univ.

Three different kinds of optimization methods (OPF, TSCOPF, HTC)
applied to power system simulation.  All matrices are symmetric
indefinite.  From Li Peijie, Institute of Power Systems (IPSO),
Guangxi University (beyondpeijie at gxu.edu.cn).  Collected by
Jonathan Hogg, Rutherford Appleton Laboratory, Oxfordshire, UK.