Analysis of parallel-operated self-excited induction generators

The paper presents an iterative solution for the problems related to steady state performance of self excited induction generators operating in parallel. The analysis is based on voltage and current balance equations derived from an inverse-model for steady state equivalent circuit of induction machines. The non-linearity in the magnetization characteristics has been taken into account by piece-wise linearisation. The proposed method is general and can be applied for analysis of any number of parallel connected machines. Theoretical predictions and experimental results are presented to study different performance characteristics of the system.