SU1459336A1 - Device for control of turbine load - Google Patents

Abstract

FIELD: electric engineering for thermal and nuclear electric power plants. SUBSTANCE: load regulator 2 which uses temperature of turbine members, load detector 3 and temperature detecting unit 5 are connected to turbine 1. One detector from unit 5 is connected to inputs of adder 4 through function generator 6, other detectors are connected to turbine through unit 7 which generates current temperature difference. Output of adder 4 is connected to function generator 8. Adder 9 and damping circuit 10 are inserted in circuit between function generator 8 and regulator 2. Second input of adder 9 is connected to one output of detector 3, which another output is connected to second input of regulator 2. Another claim of invention describes more reliable device version which in addition contains circuit of adder 13, function generator 14 and 15 which are connected in series. Output of adder 13 is connected to input of damping circuit 12, and inputs of adder 15 are connected to outputs of function generator 6 and unit 7. Outputs of circuits 10 and 12 are connected to first input of regulator 2 through closing contacts of switch 11. This results in possibility of continuous monitoring and control of turbine load depending on temperature mode. This is done to compensate both for overload and under-load. EFFECT: increased reliability of turbine operating in load mode. 2 cl, 6 dwg