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In this paper, a two-degree-freedom (TDF) internal model control (IMC) method is applied to the load frequency control (LFC) of multi-area power systems with of wind turbines. TDF-IMC needs only to tune two parameters and can achieve good disturbance rejection performance. For implementation, IMC controllers are approximated with PID controllers. A frequency response dynamic model including simplified...
Industrial environment usually contains multiple motors that are supplied through a common power bus. The power line acts as a good conducting environment for signals to travel through the power network. In effect, this influences other motors with noisy signals that may indicate a fault condition. Further complexity arises when signals are generated by motors with different power ratings, a different...
The running state of different induction motor in the load group will be moved toward two directions when it was occurred the large disturbance in the power system, one is to keep on the rotor speed running, another is to decelerate to zero, that is stall state. If the quantity or proportion of stall induction motor in the group is a large number, the dynamic of stall motor has great impacts on the...
In this paper the operation of brushless exciter is investigated and a suitable model for use in time-domain simulation of power systems is derived. An efficient voltage-behind-reactance synchronous machine model is used for the exciter. The theoretical equations, describing the operation of rotating rectifier in three rectification modes are derived. The proposed model was verified in time domain...
The paper presents the development of a computational program that simulates the electromechanical dynamics of an electric power system (EPS). It allows the evaluation of the transient stability and will be integrated into an on-line security assessment system in the northern control area of the Mexican Electric Utility (CFE). Initially, the program was developed for research and academic purposes...
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