Practical aspects of instantaneous power control of induction machines

High performance induction machine control is usually implemented using field oriented control (FOC) or direct torque control (DTC). These strategies have their strengths and weaknesses. The concept of instantaneous power control (IPC) has been used in power compensators and to control the voltage on the DC link of inverters, but it is a new concept for the control of induction machines. The idea is that by controlling the instantaneous real and imaginary power into the machine one can control the torque and flux of the machine. This paper outlines the development of the algorithm, and then focuses on some practical issues associated with the implementation of the algorithm.