| Abstract |
Various approaches to estimate a rotor time constant of induction motor have been using a PI controller as an adaptation controller, in which even small input error causes the divergence or oscillation of its controller when detected voltage and/or current have DC offeset and/or magnitude error. Therefore, new compensation method, which is mixed a reactive power method (an identification method of a rotor time constant) with a fixed trace algorithm (an adaptation controller), which has a characteristic of variable gain depending on the amount of its input, is presented and confirmed through simulations and experiments. |
