| Abstract |
The paper presents a chip-set comprising four VLSI devices, which has been developed specifically for vector-controlled variable-speed induction motor drives using standard 3-phase squirrel-cage motors. The chip-set provides all the control, communication and protection facilities necessary for such drive systems. Following a brief discussion on the vector control methods and inverter topologies, the system architecture of the chip-set is described together with its internal functional blocks. The performance advantages resulting from the new control technique are summarized. Many applications currently using open-loop A.C. drives are expected to benefit from the novel integrated approach offered by the chipset. |
