Modeling Gas Compressor Station Operation to Minimize Fuel Costs for Surge Zone Protection

Algorithm 1

Antisurge protection.

Require: Operation point ESZ     ⊳ESZ - extended surge zone

Ensure:                 ⊳open degree of the valve #R

 ,                    ⊳iteration steps by and

 regime=False                 ⊳boolean flag

 while do

                  ⊳increase opening of the valve #R

             ⊳increase inlet flow volume

  Calculate operation point    ⊳=constructWorkPoint[]

  if operation point ESZ then

   regime=True

   break

  end if

end while

if not regime then

  while do

              ⊳reduce compression ratio by

   Calculate operation point    ⊳=constructWorkPoint

   if operation point ESZ then

    regime=True

    break

  end if

end while

if not regime then

  Warning! It is impossible to build a stable regime.

end if

Return regime, parameters         ⊳list of computed parameters is implemented in Table 3