PID parameter setting method of power generator excitation system
An excitation system and parameter setting technology, which is applied in the direction of controlling the generator, controlling the generator through the change of the magnetic field, and controlling the system, etc. It can solve the problems of large gap between volume and inertia, heavy workload, and poor setting effect.
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Embodiment 1
[0037] The invention provides a PID parameter tuning method of the generator excitation system. Under the no-load rated voltage state of the actual generator operation, the PID operator output control signal is searched for in a purely proportional adjustment mode; the proportional gain value VP` of the fluctuation point Multiply the coefficient n as the proportional gain value VP of the proportional gain P parameter of the PID parameter setting of the generator excitation system; use the method of gradually reducing the integral time I parameter in the PID parameter of the motor excitation system to measure the divergence and convergence of the output control signal of the PID calculator Point value Ta`, multiply this value Ta` by the coefficient m as the time constant value Ta of the integral time I parameter of the PID parameter setting of the generator excitation system; set the differential time D parameter Tb of the PID parameter setting of the generator excitation system ...
Embodiment 3
[0067] S1: Soft start the generator to the rated voltage and run with no load, set the integral time parameter and differential time parameter of the PID controller of the generator excitation system to 0, and the proportional gain parameter to 1;
[0068] S2: Observing the PID controller operation of the generator excitation system to obtain the PID control signal, and gradually increasing the proportional gain parameter of the PID controller from 1. When the PID controller proportional gain parameter is increased to 20, the PID control signal fluctuates as Image 6 As shown, the proportional gain value recorded at this time is the first proportional gain value, and the first proportional gain value is multiplied by n to obtain the second proportional gain value, and the generator excitation system PID controller proportional gain parameter is set to the second proportional gain value Proportional gain value, said n value is taken as 0.6;
[0069] In another embodiment, the ...
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