Security analysis-linear sensitivity analysis method DC power flow:simplification of power flow! Neglect the Q-V equations in fast P-Q decoupled power flow method Completely linear and non-iterative PF algorithm Assume all node voltages|are 1.0pu aThe system equations become: △P △O △P △02 =[B] AO=[X]AP △0 电力镜广城测量与控制四川省重点实验蜜 家电网电力系统广域测量与控制四川省重点实验室  DC power flow: simplification of power flow!  Neglect the Q-V equations in fast P-Q decoupled power flow method  Completely linear and non-iterative PF algorithm  Assume all node voltages are 1.0pu  The system equations become: | | Ei 1 1 2 2 [ '] N N P P B P                                      θ [ ] X P Security analysis-linear sensitivity analysis method