VHDL-AMS modeling for virtual prototyping of Very Large Scale Integration architecture for Direct Torque Control of an AC machine

In this paper, authors present direct torque control of an AC machine and propose an optimized architecture for very large scale integration design. This architecture optimizes the choice of numerical calculation methods, the size of the core compute unit is reduced and based on two multipliers and an adder/subtracter. More, it avoids the calculation of a square root function. Each block of this architecture is modeled in VHDL at high level, using real format. To achieve closed loop simulation of this architecture in its power context, analog and power elements are modeled in VHDL-AMS. The whole closed loop system is successfully validated using AdvanceMS mixed CAD tools