The generation of electric power using self excited induction generation (SEIG) is a viable option in remote and rural areas where grid electricity is not available. The generated voltage and frequency of these machines, however, varies with varying loads. This characteristic can be resolved either by adjusting the values of the excitation capacitance or by controlling the prime mover speed. Further, in a single-point constant power application, where the machines deliver a fixed amount of power, the electronic load controller (ELC) can be used to switch-in or switch-out a dump load whenever the consumer load decreases or increases respectively. This paper presents a detailed analysis and the design of a microcontroller based SEIG -ELC system intended for stand-alone pico hydro power generation. The simulated performance of the controller is supplemented by experimental results.
This paper presents the analysis of dynamic and steady state performance of a Self Excited Induction Generator (SEIG) with digitally controlled Electronic Load Controller (ELC) feeding single phase loads. The excitation capacitors, electronic load controller,1-phase load in conjunction with the dq model of the 3-phase induction machine taking into account the saturation effect are used to predict the dynamic behavior of the SEIG. The digital control is realized by means of PIC18F252 microcontroller which provides a better performance with increased operational flexibility. Both simulation and hardware results have been presented for the digitally controlled ELC, which is more compact, reliable and cost effective for providing effective voltage regulation for field applications.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.