Lecture 3 Power System Economic Dispatch Dr.Qi Huang School of Energy Science and Engineering UESTC
Lecture 3 Power System Economic Dispatch Dr. Qi Huang School of Energy Science and Engineering UESTC
Contents Introduction Problem formulation Characteristics of prime mover-generator Model of economic dispatch and its solution Economic dispatch considering line loss Gradient method 口 Newton method aDynamic programming Co-dispatch of thermal and hydro plants 电力拿镜广城洲量写控制四川省童点实验蜜 家电网
电力系统广域测量与控制四川省重点实验室 Contents Introduction Problem formulation Characteristics of prime mover-generator Model of economic dispatch and its solution Economic dispatch considering line loss Gradient method Newton method Dynamic programming Co-dispatch of thermal and hydro plants
Introduction Economic dispatch is the main function of EMS To some extents,it is the generation plan, including unit commitment,hydro-thermal plan,exchange plan,repair plan and fuel plan. According to the period:short-term plan,i.e., AGC,short generation plan (in a day or a week);mid-term plan,one month to one year; long-term plan,several to tens of years, including the development plan of power sources and power grid 电力拿镜广城洲量写控制四川省童点实验蜜 家电网
电力系统广域测量与控制四川省重点实验室 Introduction Economic dispatch is the main function of EMS To some extents, it is the generation plan, including unit commitment, hydro-thermal plan, exchange plan, repair plan and fuel plan. According to the period: short-term plan, i.e., AGC, short generation plan (in a day or a week); mid-term plan, one month to one year; long-term plan, several to tens of years, including the development plan of power sources and power grid
Introduction-characteristics of generator Boiler Steam Turbine Generator B G (gross) (net) Auxiliary Power System 2-6% H:MBtu/h,Input thermal energy,1 Btu (British thermal unit)=1054 J F:R/h,Fuel cost 电力拿镜广城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 Introduction-characteristics of generator H: MBtu/h，Input thermal energy，1 Btu (British thermal unit) = 1054 J F: R/h，Fuel cost B T G Auxiliary Power System Boiler Steam Turbine Generator (gross) (net) 2-6%
AH H Or△F △P Power output characteristics of P thermal generator Pmin Output,P(MW) Pmax +△HI△P Incremental heat rate of thermal generator Pmin Output,P(MW) Pmax 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 Pmin Output, P(MW) Pmax Input, H(Mbtu/h) or F(R/h) P H P H or F Incremental hate rate Pmin Output, P(MW) Pmax (Btu/kWh H P / Power output characteristics of thermal generator Incremental heat rate of thermal generator