A Method for Adaptive Dynamic Reactive Power Compensation of Photovoltaic Grid-connected Inverters
An inverter, photovoltaic technology, applied in reactive power compensation, photovoltaic power generation, irreversible DC power input conversion to AC power output and other directions, can solve the problem of increasing control system delay, current impact, affecting system transient performance, etc. problem, to achieve the effect of eliminating negative sequence components
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[0059] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.
[0060] An adaptive dynamic reactive power compensation method for photovoltaic grid-connected inverters provided by the present invention is an adaptive dynamic reactive power compensation method during low-voltage fault ride-through of photovoltaic grid-connected inverters. During grid voltage faults, the grid voltage outer loop current is used The inner loop control strategy, the outer loop of the grid voltage is based on the positive sequence component of the grid voltage falling to the percentage of the rated voltage and adopt...
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