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This paper proposes a method to analyse stability of multi-rate system. Multi-rate systems are used to simulate different part of the circuit with different sampling rate. This allows to reduce computational burden of stiff system; by choosing the most appropriate time-step according to the time constant of the phenomena studied. Traditionally, stability of discrete system is done by studying the...
This paper analyses the capacity of a new FPGA-based System-on-Chip (SoC) platform for the control of electrical systems. These new SoC platforms integrate both an FPGA fabric and a powerful processor. Among these platforms the Xilinx Zynq-7000 All Programmable (AP) System on-Chip is evaluated. The chosen algorithmic benchmark consists on a realtime simulation of a Voltage Source Rectifier (VSR) connected...
The objective of the present work is the global stabilization of a cart-pendulum system. First, an energy shaping algorithm is developed to bring up the pendulum to the close vicinity of its upright equilibrium point. The energy control technique employed here also takes care of the practical constraint of limited cart track length. Next, a sliding mode controller (SMC) does the task of keeping the...
The optimal control of electrical drives necessitates to take into account current and voltage limits that are imposed by the power electronics and the electrical machines. Let's cite for example the flux-weakening operation of electrical drives for propulsion. If the control of classical three-phase drives under voltage and current limits are known for a long time, the specific characteristics of...
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