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It is a known fact, that three-dimensional FE-Simulations are very slow, which prevents their usability in larger system models. In this paper, a Matlab/Simulink model for a TFM is developed to enable fast simulations of complete drive systems with power converters and other components. The model is derived by incorporating precomputed FEM data into a Matlab function, thereby allowing a 4.2 million...
The aim of this paper is to compare two modeling methods for a wound-rotor induction machine in order to simulate it in both healthy and faulty modes. The circuit-oriented approach which represents the machine model as a rotating transformer will be compared to the discrete event method. First, the wound-rotor induction machine model will be described using the classical equations in the abc reference...
The simulation model of high voltage generator is proposed in MATLAB/SIMULINK based on the equivalent mathematical model of the new type generator. Simulation module is established in a single-machine infinite-bus. A high voltage generator prototype rated at 162.5 kVA/5 kV is taken as the research object in this paper. The quasi-synchronizing parallel in operation characteristic is studied with digital...
Simulated model of loss-of-excitation protection for generator is established in Matlab, and then taking advantage of BP neural networks which are most advantageous in recognizing patterns, the operation zone of the active power rotor criterion for loss-of-excitation protecting of generator is recognized. Comparing with conventional microcomputer protection using linear approximation, the result shows...
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...
This paper presents a voltage-behind-reactance (VBR) induction machine model for the Matlab-Simulink toolbox SimPowerSystem, which is widely used for simulations of power and power electronics systems. In the proposed VBR model, the three-phase stator branches are represented by decoupled and constant R-L branches behind voltage sources, which provide a direct interface of the model with the external...
This paper proposes a novel integration of a doubly- fed induction generator (DFIG) and a fuel cell. With the proposed scheme, it is possible to inject power from a DC power source like a fuel cell into the AC grid without using an additional inverter. The fuel cell is connected across the DC link of the back-to-back converters of a DFIG injecting power either into the grid or the rotor circuit. This...
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