Control for power pools

Claim 1

A method for controlling a plurality of power generation units grouped into distribution areas which are interconnected to form a pool for sharing the load assumed by the interconnected areas in accordance with a predetermined criteria, comprising the steps of producing from measurements indicative of the assumed load a first signal representing the total change in generation required in the pool during a subsequent period of control to meet said assumed load, producing for each area a second signal representative of the generation change whicH that area can effect in a particular direction during the subsequent period, allocating to the individual areas said total change required in the pool in accordance with the magnitude of the respective second signals, and changing the generation of each of the areas in accordance with the allocation of said total change.

Claim 2

A method for controlling a plurality of power generation units grouped into distribution areas which are interconnected to form a pool for sharing the load assumed by the interconnected areas in accordance with a predetermined criteria, comprising the steps of producing from measurements indicative of the assumed load a first signal representing the total change in generation required in the pool during a subsequent period of control to meet said assumed load, producing for each area a second signal representative of the generation change whicH that area can effect in a particular direction during the subsequent period, allocating to the individual areas said total change required in the pool in accordance with the magnitude of the respective second signals, and changing the generation of each of the areas in accordance with the allocation of said total change.

Claim 3

A method for controlling a plurality of power generation units grouped into distribution areas which are interconnected to form a pool for sharing the load assumed by the interconnected areas in accordance with a predetermined criteria, comprising the steps of periodically producing from measurements indicative of the assumed load a first signal representing the total change in generation required in the pool during a subsequent period of control to meet said assumed load, producing for each area second and third signals respectively representative of the generation change which that area can effect in a raise and lower direction during the subsequent period, allocating to the individual areas said total change required in the pool in accordance with the magnitude of the respective second and third signals, and changing the generation of each of the areas in accordance with the allocation of said total change.

Claim 4

A method for controlling a plurality of power generation units grouped into distribution areas which are interconnected to form a pool for sharing the load assumed by the interconnected areas in accordance with a predetermined criteria, comprising the steps of periodically producing from measurements indicative of the assumed load a first signal representing the total change in generation required in the pool during a subsequent period of control to meet said assumed load, producing for each area second and third signals respectively representative of the generation change which that area can effect in a raise and lower direction during the subsequent period, allocating to the individual areas said total change required in the pool in accordance with the magnitude of the respective second and third signals, and changing the generation of each of the areas in accordance with the allocation of said total change.

Claim 5

A method for controlling a plurality of power generation units grouped into distribution areas which are interconnected to form a pool for sharing the load assumed by the interconnected areas in accordance with a predetermined criteria, comprising the steps of periodically producing from measurements indicative of the assumed load a first signal representing the total change in generation required in the pool during a subsequent period of control to meet said assumed load, producing for each area a second signal representative of the generation change which that area can effect in a particular direction during the subsequent period, determining that portion of the required change in generation to be allocated to each of the areas during the subsequent control period by sequentially decrementing said first signal by amounts corresponding with the values of said second signals until said first signal has been decremented to zero or until allocations have been made to each of said areas, and changing the generation of each of the areas in accordance with the value of the corresponding second signals used to decrement said first signal.

Claim 6

A method for controlling a plurality of power generation units grouped into distribution areas which are interconnected to form a pool for sharing the load assumed by the interconnected areas in accordance with a predetermined criteria, comprising the steps of periodically producing from measurements indicative of the assumed load a first signal representing the total change in generation required in the pool during a subsequent period of control to meet said assumed load, producing for each area a second signal representative of the generation change which that area can effect in a particular direction during the subsequent period, determining that portion of the required change in generation to be allocated to each of the areas during the subsequent control period by sequentially decrementing said first signal by amounts corresponding with the values of said second signals until said first signal has been decremented to zero or until allocations have been made to each of said areas, and changing the generation of each of the areas in accordance with the value of the corresponding second signals used to decrement said first signal.

Claim 7

A method for controlling a plurality of power generation units grouped into distribution areas which are interconnected to form a pool for sharing the load assumed by the interconnected areas in accordance with a predetermined criteria, comprising the steps of periodically producing from measurements indicative of the assumed load a first signal representing the total change in generation required in the pool during a subsequent period of control to meet said assumed load, producing for each area second and third signals respectively representative of the generation change which that area can effect in a raise and lower direction during the subsequent period, determining that portion of the required change in generation to be allocated to each of the areas during the subsequent control period by sequentially decrementing said first signal by amounts corresponding with the value of said second and third signals for required changes in raise and lower directions, respectively, until said first signal has been decremented to zero or until allocations have been made to each of said areas, and changing the generation of each of the areas in accordance with the value of the corresponding second or third signals used to decrement said first signal.

Claim 8

A method for controlling a plurality of power generation units grouped into distribution areas which are interconnected to form a pool for sharing the load assumed by the interconnected areas in accordance with a predetermined criteria, comprising the steps of periodically producing from measurements indicative of the assumed load a first signal representing the total change in generation required in the pool during a subsequent period of control to meet said assumed load, producing for each area second and third signals respectively representative of the generation change which that area can effect in a raise and lower direction during the subsequent period, determining that portion of the required change in generation to be allocated to each of the areas during the subsequent control period by sequentially decrementing said first signal by amounts corresponding with the value of said second and third signals for required changes in raise and lower directions, respectively, until said first signal has been decremented to zero or until allocations have been made to each of said areas, and changing the generation of each of the areas in accordance with the value of the corresponding second or third signals used to decrement said first signal.

Claim 10

A method for controlling a plurality of power generation units grouped iNto distribution areas which are interconnected to from a pool for sharing the load assumed by the interconnected areas in accordance with a predetermined criteria, comprising the steps of periodically producing from measurements indicative of the assumed load a first signal representing the total change in generation required in the pool during a subsequent period of control to meet said assumed load, producing for each area second and third signals respectively representative of the generation change which that area can effect in a raise and lower direction during the subsequent period, producing for each area a fourth signal representative of the required change in generation to be made during the subsequent control period, said fourth signals being determined by sequentially subtracting said second or third signals for each area from said first signal depending on whether said first signal calls for a raise or a lower requirement for the pool, and changing the generation of those units in each area which require a change in the direction called for by the first signal until the unit requirements are met.

Claim 11

A method for controlling a plurality of power generation units grouped iNto distribution areas which are interconnected to from a pool for sharing the load assumed by the interconnected areas in accordance with a predetermined criteria, comprising the steps of periodically producing from measurements indicative of the assumed load a first signal representing the total change in generation required in the pool during a subsequent period of control to meet said assumed load, producing for each area second and third signals respectively representative of the generation change which that area can effect in a raise and lower direction during the subsequent period, producing for each area a fourth signal representative of the required change in generation to be made during the subsequent control period, said fourth signals being determined by sequentially subtracting said second or third signals for each area from said first signal depending on whether said first signal calls for a raise or a lower requirement for the pool, and changing the generation of those units in each area which require a change in the direction called for by the first signal until the unit requirements are met.