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Renewable energy systems are playing an important role to reduce CO2 emission and provide electricity for daily use in rural areas. But brand new components with up-to-date technology could be far too expensive for many potential users (rural communities in many developing countries. As a consequence, turning waste components into energy production systems could be a good opportunity to reach these...
The systematic design of voltage regulation systems for self-excited induction generators requires the development of a control-oriented model. The paper considers the situation where the peak magnitude of the stator voltages is regulated through adjustable capacitors connected to the windings. A transfer function model is difficult to obtain, due to the strong nonlinearity of the self-excitation...
This paper analyzes the stability limits of an autonomous three-phase induction generator supplying singlephase loads. By using a particular balancing algorithm, varying resistive and resistive-inductive loads are successfully supplied up to a threshold of 85% from the generator power in three-phase mode. As the load active power is increased beyond this limit, the voltage tends to decrease. Experiments...
Self-excited induction generators produce power off-grid with capacitors placed in parallel with the load to supply the reactive power. The existing theory predicts an exponential growth of the phase voltages from the zero state when the linearized electrical system has unstable poles, a condition that requires a combination of minimum speed and sufficient capacitance. In practice, however, pre-charged...
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