Quadratic regulator based optimal state feedback controller for stability improvement of inverter based microgrids
Citations
Cites background from "Quadratic regulator based optimal s..."
...The two inverter based DGs are connected through a line and they are feeding a load [15]....
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...State feedback based optimal controller and second order derivative based controllers are also proposed in [15] and [16] for stability improvement and improved power sharing respectively....
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References
13,467 citations
"Quadratic regulator based optimal s..." refers background in this paper
...When the grid is present, then all the system dynamics are determined by grid itself due to the fact that DG’s are very small in comparison to the grid and hence does not play significant role in shaping the dynamics [2], [3]....
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2,482 citations
"Quadratic regulator based optimal s..." refers background or methods in this paper
...Detailed small signal analysis of droop controlled autonomous microgrid is done in [11], [12]....
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...Compelete small signal modelling procedure is given in [11]....
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...Due to the limitation of space, the linearised equations are not shown in this paper but can be found in [11]....
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...The dynamic modelling given in [11] is used to construct the overall system state matrix on a common reference frame....
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...Here, all the coefficient matrices are found in [11] and δ is defined as the angle between the individual inverter frame and common reference frame....
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1,130 citations
"Quadratic regulator based optimal s..." refers methods in this paper
...An adaptive decentralized droop controller was proposed in [16], in which an adaptive transient droop function is combined with static droop characteristics....
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1,003 citations
"Quadratic regulator based optimal s..." refers methods in this paper
...In [17] significant improvement in transient performance is obtained by developing power derivative-integral controller which is included in the conventional droop scheme....
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928 citations