Synchronization of two generators TVX b TVG VG Vnetwork fG fnetwork (e) 图213正弦整步电压 (接线图：(b)U波形：(c)U波形 Synchronscope Hz 1小2H3发=404 洲量写控制四川省童点实验蜜 家电
电力系统广域测量与控制四川省重点实验室 Synchronization of two generators Synchronscope
Economic dispatch problem considering network loss
Economic dispatch problem considering network loss
Formulation of the model Extending the constraint,by adding the network loss: s.t. minF=∑F(P) b=0=Rm+Rs-∑乃 i=1 F> 1 T G load 2 T ■ Transmission ◆ ◆ ■ network with ■ losses,Ptoss N T FN G D 电力拿镜广城洲量写控制四川省重点实验蜜 家电
电力系统广域测量与控制四川省重点实验室 Formulation of the model Extending the constraint, by adding the network loss: 1 min ( ) N T i i i F F P s.t. 1 0 N load loss i i P P P
Solution Using Lagrange: 1-5+02+e+乞 ∂L OP, dF（'i2-λ(1-。ss)二0\ dP aL Pod Pu-P=0 Mathematic on i model of Operation economic constraints: P.mn≤P≤P.max dispatch 电力拿镜广城洲量写控制四川省重点实验蜜 家电
电力系统广域测量与控制四川省重点实验室 Solution Using Lagrange: 1 1 ( ) N N T i i load loss i i i L F F P P P P ( ) (1 ) 0 i i loss i i i L dF P P P dP P 1 0 N load loss i i i L P P P P P P i i i ,min ,max Operation constraints: Mathematic model of economic dispatch
Example #3.2 Example repeat the first example,but include a simplified loss expression for the transmission network P=0.00003P+0.00009E+0.00012P the incremental cost functions and the constraint function are formed as: dP dE/dE=23.76+0.009372E=20-20.00003)R] dE/dE=23.55+0.01164D=-2(0.00009)R] dE/d2=23.70+0.02892E=-2(0.00012)E] +P+-850=P=0.00003P2+0.00009P+0.00012P this is no longer a set of linear equations as before 思系电网
电力系统广域测量与控制四川省重点实验室 Example #3.2