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Generic Excitation Programmable Parameters
The parameters are shown in the block diagram of the excitation system (ex_Tr, ex_Ka, ex_Ta, ex_Kf, ex_Tf, ex_Vtmax, ex_Vtmin, ex_Vrmin, ex_Vrmax, ex_Efdfix, Exci_on). In addition, the excitation system can be off and set to a constant value. Moreover, the excitation system can be modeled externally by a user-defined model, depending on the state of exci_mod switch.
- exci_on: Selection of excitation system operation. (On=Normal regulation; Off=constant excitation)
- exci_mod: Selection of excitation system model. (Internal = actual model; External = model supply by user)
- ex_Tr: Voltage measurement time constant, (sec)
- ex_Ka: Voltage regulator gain
- ex_Ta: Voltage regulator time constant (sec)
- ex_Kf: Damping filter feedback gain
- ex_Tf: Damping filter feedback time constant (sec)
- ex_Kp: Proportional gain on voltage limit
- ex_Vtmin: Minimum static limit on voltage measurement (pu)
- ex_Vtmax: Maximum static limit on voltage measurement (pu)
- ex_Vrmin: Minimum static limit of excitation voltage (pu)
- ex_Vrmax: Maximum static limit of excitation voltage; The maximum limit applied to the regulator transfer function is always the minimal value between the output of the Kp gain and the ex_Vrmax value.
- ex_Efdfix: Constant excitation voltage. Used when Exci_on is off.
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