Research ArticleEmbarked electrical network robust control based on singular perturbation model

- Embarked networks are multi-sources and multi-loads nonlinear systems.
- We propose a simple and realistic model using singular perturbation approach.
- The developed model can be easily used to tune any type of controller.
- The RST voltage controllers are synthesised and tested on a software test-bench.
- The experimental results highlight satisfying dynamic performances.

This paper deals with an approach of modelling in view of control for embarked networks which can be described as strongly coupled multi-sources, multi-loads systems with nonlinear and badly known characteristics. This model has to be representative of the system behaviour and easy to handle for easy regulators synthesis. As a first step, each alternator is modelled and linearized around an operating point and then it is subdivided into two lower order systems according to the singular perturbation theory. RST regulators are designed for each subsystem and tested by means of a software test-bench which allows predicting network behaviour in both steady and transient states. Finally, the designed controllers are implanted on an experimental benchmark constituted by two alternators supplying loads in order to test the dynamic performances in realistic conditions.