Computationally-Efficient Simulation of Electric Industrial Plants

The validation of a power control system in industrial plants requires a modelling for simulation of the electric power system that is fairly accurate and computationally-efficient. The second aspect is particularly relevant if a real-time simulation is required. In this paper the classical models of the network and the induction motors are revised so as to allow an adequate trade-off between computational-efficiency and accuracy of the results. In particular, the model for the induction motors are improved to achieve an adequate accuracy in all the operating range; the network solution is improved to increase computational efficiency. Numerical simulations are presented to show the limited computational burden in simulating a large industrial plant, as well as the good accuracy of the results in comparison with the characteristics of actual machines.