lecture15- Control of Generation

lecture15- Control of Generation - EEL 6266 Power System...

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Unformatted text preview: EEL 6266 Power System Operation and Control Chapter 9 Control of Generation 2002, 2004 Florida State University EEL 6266 Power System Operation and Control 2 Generator Allocation c A typical control area contains many generators r the individual outputs must be set according to economics c the solution of the economic dispatch must be coupled to the generation control system c the input consist of the total generation required for the area s in order to satisfy the load demand and maintain contractual power flows across the tie lines c the output is the power distribution across the outputs of all the generators within the control area r continuously varying system load demand c a particular total generation value will not exist for a very long time 2002, 2004 Florida State University EEL 6266 Power System Operation and Control 3 Generator Allocation c Economic generator control r it is impossible to simply specify a total generation, calculate the economic dispatch schedule, and give the control system the output schedule for each generator c unless such a calculation can be made very quickly c for digital control system it is desirable to perform the economic dispatch calculation at intervals of 1 to 15 minutes r independent of the calculation schedule c the allocation of generation must be made instantly whenever the required area total generation changes c the allocation control of generation must run continuously c a rule must be provided to indicate the generation allocation for values of total generation other than that used in the economic dispatch 2002, 2004 Florida State University EEL 6266 Power System Operation and Control 4 Generator Allocation c The allocation of individual generators over a range of total generation values r accomplished using base points and participation factors c for period k , the economic dispatch sets the base-point generation values for the total generation value measured at the start of the period c the base-point generation for the i th unit, P i base is the most economic output for the particular total generation value c the participation factor, pf i , sets the rate of change of the...
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lecture15- Control of Generation - EEL 6266 Power System...

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