System for providing load-frequency control through predictively

Details System for providing load-frequency control through predictively System for providing load-frequency control through predictively

1980-01-11

1981-12-08

Krass, Errol A.

Boots, shoes, and leggings

60 3928R, 290 40R, 290 52, F01D 1704

Patent

active

043051294

ABSTRACT:
An optimized high load blocking limit is independently computer calculated for each gas turbine-generator unit as a dynamic function of combustor shell pressure and exhaust temperature every second. A low load blocking limit can be calculated as a function of the high blocking limit. The high and low dynamic limits then define a band of megawatts instantaneously available to the system. At the dispatch computer, load-frequency control is executed and the calculated load demands are dispatched to the various gas turbine-generator units which respond without exceeding the respective high and low load blocking limits. A turbine control unit load reference is modified by the dispatched load change and each unit load control operates its turbine fuel control valves to satisfy the load demand.

REFERENCES:
patent: 3974643 (1976-08-01), Smith et al.
patent: 4039804 (1977-08-01), Reed et al.
patent: 4053746 (1977-10-01), Braytenbah et al.
patent: 4115860 (1978-09-01), Atwater
patent: 4181840 (1980-01-01), Osborne
patent: 4208591 (1980-06-01), Yannone et al.

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