2011
DOI: 10.18618/rep.20114.296303
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A Negative-sequence Current Injection Method to Mitigate Voltage Imbalances in Microgrids

Abstract: This paper proposes a control strategy to reduce the voltage imbalances by injection of a proper negative-sequence current into the microgrid. This task can be done by each inverter connected to the microgrid in a shared way. The current compensation reference is obtained through a negative-sequence voltage control loop, avoiding the load current measurement. The detection of the negative-sequence voltage, at the converter connection point, is performed by a double second order generalized integrator, properly… Show more

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Cited by 6 publications
(2 citation statements)
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“…In [10], the authors proposed a control scheme to achieve uniform voltage among all the phases. However, this scheme needs an estimated angle, which is hard to assess.…”
Section: Literature Reviewmentioning
confidence: 99%
See 1 more Smart Citation
“…In [10], the authors proposed a control scheme to achieve uniform voltage among all the phases. However, this scheme needs an estimated angle, which is hard to assess.…”
Section: Literature Reviewmentioning
confidence: 99%
“…The above expression can be simplified if the angle of the positive sequence current phasor is the same as the negative sequence current phasor. In this case, the cosine terms cancel out, and it results in a simpler expression between the magnitude of positive and negative sequence current phasors, which is given in (10).…”
Section: K-factors Calculationsmentioning
confidence: 99%