J
Hello,
I have a question about the AGC function. As we know, following a disturbance in the system, the speed governors of all the generating units will contribute to the process of stabilizing system frequency at a new level. Then, the AGC function will calculate the Area Control Error (ACE) and change the setpoints of selected generators based on that to return frequency to nominal value and free up the primary control (governor) reserve. In the literature, it is stated that AGC will act from seconds (usually 30 seconds) to minutes. My question is that what causes the AGC to do no action just after the occurrence of the disturbance? What causes it to react after 30 seconds? After the disturbance, the ACE will change. So I think that AGC should send setpoints to generators. If that is true, it means that governor and AGC actions are being done simultaneously. Is that OK or will it bring about problems?
I have a question about the AGC function. As we know, following a disturbance in the system, the speed governors of all the generating units will contribute to the process of stabilizing system frequency at a new level. Then, the AGC function will calculate the Area Control Error (ACE) and change the setpoints of selected generators based on that to return frequency to nominal value and free up the primary control (governor) reserve. In the literature, it is stated that AGC will act from seconds (usually 30 seconds) to minutes. My question is that what causes the AGC to do no action just after the occurrence of the disturbance? What causes it to react after 30 seconds? After the disturbance, the ACE will change. So I think that AGC should send setpoints to generators. If that is true, it means that governor and AGC actions are being done simultaneously. Is that OK or will it bring about problems?