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Simulation study demonstrates effective current and voltage regulation in back-to-back converters using state feedback, highlighting improved stability for microgrid systems.
This paper presents the steps of a state feedback control design of a back-to-back (B2B) converter for microgrids applications. The system structure is presented and a mathematical model of the voltage sourced converters is developed. The current controllers, of the sending and receiving-end converters, are designed using the LQR technique. On the other hand, the DC bus voltage control is carried out by a PI controller. Digital simulations results are presented to validated the theoretical analysis and to demonstrate the performance of the converter controllers.
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Almeida et al. (2018) studied this question.
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