The invention relates to a method for physical
simulation of the
transient state and the dynamic state of a power live load in a power
system and belongs to the technical field of electromechanical control and physical
simulation based on
electric power and power systems. According to the method for physical
simulation of the
transient state and the dynamic state of the power live load in the power
system, according to the demand for simulation of different types of live loads, the
armature current Ia which needs to be applied to a separate excitation direct-
current generator is calculated based on the
angular velocity omega of a rotating shaft which is connected with an asynchronous motor and the separate excitation direct-
current generator; on the premise that the
magnetic flux phi of the separate excitation direct-
current generator is kept constant, due to the fact that Te is equal to CTphiIa, the change of the
armature current Ia of the separate excitation direct-current generator enables the
electromagnetic torque Te of the separate excitation direct-current generator to change at the same proportion, the change of the
electromagnetic torque Te acts on the rotating shaft which is connected with the asynchronous motor and the separate excitation direct-current generator, the effect caused by the fact that a real load acts on the rotating shaft is achieved, and the simulation of the mechanical features of the load is achieved. The method for physical simulation of the
transient state and the dynamic state of the power live load in the power
system has the advantages of being simple, convenient to implement, easy to implement, good in control performance and the like; test results show that the precision of simulation, generated through the method, of the power live load meets the demands of physical tests.