7505 Power Dispatching

About This Course

The objective of this course is to present and discuss the various factors which must be taken into consideration when dispatching generation. Although most of the technical factors will remain after deregulation, it is probable that some aspects of dispatching will change to accommodate the competitive market for generation. This subject will be dealt with later in the program. After completion of this course and associated workbook, the participant should be able to understand the following concepts, and apply them in day-to-day work activities. The function of generation dispatch, i.e. to have sufficient generating capacity on-line at all times to meet the load demand, plus system losses, plus reserve capacity for emergencies make up of the power system, i.e. power pools and interconnected control areas. Major elements of a control area, Preparation of the daily generation schedule based on the load forecast, Spinning reserve requirements, Short term and long term stand-by reserve capacity, Short term and long term availability of generation units, Alternate sources of generation available to the control area, The availability of power for purchase from independent power producers or neighboring utilities, Factors affecting the order of dispatching generators, i.e. cost, location, prime mover characteristics, Characteristics of base load units, Characteristics of variable load machines, Characteristics of peaking units, Characteristics of regulating units (i.e. frequency control), Typical limitations to be observed when bringing generators on-line, Economic dispatch based upon comparison of generation costs from different units. Components of generation cost, i.e. start-up, shutdown, no-load running cost, and incremental cost with load, The dispatch calculation program, Marginal cost at different times of the day, The dispatch of hydropower based on marginal costing (i.e. displacement of high priced thermal power), Hydro dispatch based upon control of water releases, Dispatch of pumped storage power, Economy interchange between neighboring utilities, Spot price for economy power, Inadvertent interchange and arrangements for compensating power flow, The effects of transmission system configuration on generation dispatch, The effect of generation location on system energy losses, The power transfer equation (power angle increases with increased power transfer), Instability due to excessive power angle, Restrictions placed upon generation dispatch due to excessive power angle, Availability of computer programs to assist the load dispatcher.

If you are taking this course for NERC credit, the following credits will be reported.

NERC CE HOURS: CE HOURS = 4.00 OPS Topics=4.00 Standards=0.00 Simulation=0.00 EO=0.00