Excitation system parameter identification method based on system decoupling and sequence-optimization genetic algorithm
A technology of excitation system and genetic algorithm, applied in general control system, control/regulation system, instrument, etc., can solve difficult problems such as credibility evaluation
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[0094] Figure 5 It is a schematic diagram of the FV model provided by the embodiment of the present invention omitting over-excitation limitation and under-excitation limitation. This figure takes the excitation system of a self-shunt generator in a power plant as an example. where input V ERR is the difference between the generator terminal voltage and the reference voltage, output E FD is the generator excitation voltage, K V Select factor for proportional or pure integral, I FD is the excitation current of the generator. For the FV model, the parameter T 1 , T 2 , T 3 , T 4 、K A , T A 、K F , T F is the parameter to be identified. That is, α=[T 1 ,T 2 ,T 3 ,T 4 , K a ,T a ] T . For the above model, under decoupling, the measured quantities are the extreme three-phase voltage and current of the generator, as well as the excitation voltage and excitation current of the generator.
[0095] Figure 6 It is a schematic diagram of the machine terminal volta...
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