Abdelkrim Benchaib

Industrial D-STATCOM chain link modelling and control

This paper presents a new scheme of control for D-STATCOM chain link system. The controller based on nonlinear model, is derived using time basis linearization method. In fact, the considered system can be represented as an interconnection of two subsystems with different dynamics. Simulation and experimental results will show the effectiveness of the proposed method.

Discrete-Time Sliding-Mode Control of a STATCOM Including Voltage and Current Limitations for Wind Farm Applications

This paper presents a discrete-time sliding-mode control of a VSC based STATCOM, intended for its application to wind farm connection to the grid. A sliding-mode controller has been used for currents while pole placement with a slower dynamic response has been used for DC bus voltage control, as DC voltage has been assumed to have slower dynamics than currents. Besides, the voltage and current limitations of the system has been studied and their influence analyzed by means of limitation circles

Discrete-Time Dead-Beat Control of a VSC Transmission Scheme Including Voltage and Current Limitations for Wind Farm Connection

This paper presents a discrete-time nonlinear control of a voltage source converter (VSC) transmission system for wind farm connection to electrical network. After introducing discrete-time modeling of a VSC transmission scheme, discrete-time currents (i.e. P and Q) and DC bus voltage controllers synthesis is presented. Both voltage and current limitations are then taken into account through the introduction of voltage and current limitation circles. Control performances are then illustrated by simulation results. More particularly, transient behavior in case of voltage and current limitations is discussed. Finally, some conclusions and perspectives are given