Voltage stabilization system for induction generator in stand alone mode

A problem of terminal voltage stabilization for self excited induction generator (SEIG) in stand alone mode is studied. Some means of SEIG terminal voltage stabilization implementing different designs of control schemes are observed. A method for tuning of digital control block by using an optimisation technique is proposed. The method is based on looking for minimum of criterion function that is weighted sum of some system' parameters. Factors of control equation have been obtained and computer modelling was done in order to check out system behaviour in different transient modes. Data of experimental investigations of a prototype are given which confirm the results of simulation. An overall method is based on well established theory for the time domain modelling of induction machines and affords to take into account nonlinearities of induction machines and digital control blocks and seems to be reliable and accurate.