there's always the "psionic version of the reserve feat" ie" two feats that lets you get a few power points every other round (or every round with three feats and a concentration check and no movement) so long as you are conscious and don't spend your last actual power point.
Love to know what those are. Will be having a psionic class next cycle.
from magic of incarnum the azure talent feat and the psycarnum infusion feat. one lets you gain bonus pp equal to 2x the incarnum you invest. normally this only works once per day. but, the other feat allows you to expend your psionic focus to treat any one incarnum receptacle (feat, meld, etc.,) as if it was full for one round. fortunately one of the feats also grants you an incarnum pool to work with.
depending on your character level your incarnum capacity is 1, 2, 3, or 4, so you will receive bonus power points in the amount of 2, 4, 6, or 8. obviously, this will only allow you to manifest powers from 1st to 4th level, maybe with a bit of augmentation.
the third feat i mentioned is the psionic meditation feat for a move action to refocus instead of standard action.
as previously mentioned, this combo only works if you have power points left in your pool, and cog crystals don't work as you can't replenish your pool from them and focus requires actual points in the pool.