Abstract: Disclosed are a method and system for redundancy switch between two controllers for supplementary damping of a governor, relating to the technical field of control methods. The method includes acquiring a participation condition according to an output result, listing the participation condition in a truth value table and supplementing correlation logic; outputting the correlation logic as an image language, and simplifying the image language; and acquiring switch logic by a simplified image language, and transforming the switch logic into a programming language of the controller. A complex control relation can be decomposed in the disclosure, so that the difficulty can be reduced, and a correct and comprehensive control purpose can be achieved. Moreover, the method has universality.

Abstract: Disclosed are a method and system for verifying a low-frequency oscillation damping control effect of a governor power system stabilizer (GPSS), relating to the technical field of power systems. The method includes: selecting a wiring working condition for a fault-free disconnection test, and constructing a unit test working condition; performing the fault-free disconnection test on an outgoing line of a power plant, and collecting an electromagnetic power fluctuation recording curve; and comparing low-frequency oscillation damping effects under different GPSS settings, evaluating the effects, and performing a cyclic test. A success rate of the test is increased, safety of the test is improved, and the overall stability and anti-oscillation capacity of the system are improved in the disclosure.

Abstract: Disclosed are a method and system for verifying a low-frequency oscillation damping control effect of a governor power system stabilizer (GPSS), relating to the technical field of power systems. The method includes: selecting a wiring working condition for a fault-free disconnection test, and constructing a unit test working condition; performing the fault-free disconnection test on an outgoing line of a power plant, and collecting an electromagnetic power fluctuation recording curve; and comparing low-frequency oscillation damping effects under different GPSS settings, evaluating the effects, and performing a cyclic test. A success rate of the test is increased, safety of the test is improved, and the overall stability and anti-oscillation capacity of the system are improved in the disclosure.