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The rise of distributed power generation systems comes along with an energy storage systems increment. Moreover, the expensiveness of batteries and dc capacitors generate interest on extending their lifetime, directly related with dc current ripple. Unlike other multifrequency approaches, in this paper, the harmonic reference currents are calculated to reduce the low-frequency active power fluctuations,...
The grid inductance is a sensitive parameter to be considered in order not to degrade the control system performance and to guarantee the system stability. In this paper, the Grid Inductance estimation based on Generalized Integrators (GIGI) method is proposed. It carries out an online grid inductance detection, which disturbs the grid by injecting a time-limited and small-amplitude harmonic voltage...
This paper proposes a multi-frequency grid synchronization method in stationary frame αβ based in multiple reduced order generalized integrators (MROGI). The presented system is able to detect independently the positive and negative sequence components and also it is able to provide the selected sequence components (typically −5 and +7) in less computational time than other multi-frequency synchronization...
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