Consider when you fall in to that sector, and therefore must use the space vectors of the pressure equation is then used (2.12) to calculate the time to switch to.
Considering the fall in sector two we have, and therefore requires a space vector of pressure following. Then, using equations (2.12) to calculate the time to switch to.
Consider when fall into the sector, and will 2 Therefore, to use the space vector of voltage as follows. Then use equation (2.12) to calculate the time to switch to .