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A grid adaptability simulation test scheme for photovoltaic inverter based on RT-LAB simulator is proposed. First, the photovoltaic inverter grid adaptability simulation testing platform is constructed, which contains power circuit model of grid adaptability test, controller board of the photovoltaic inverter, and physical interface circuit. And then, a grid adaptability test device model is proposed,...
According to grid connected standard for photovoltaic power generation system, a LVRT control strategy for photovoltaic inverter based on active current derating is proposed. First, under grid normal condition a control strategy based on anti-windup PI controller is proposed, which reduces the influence of integral saturation on current reference value; Then, a LVRT control strategy based on current...
According to national standard GB/T 19964-2012 "Technical requirements for connecting photovoltaic power station to power system", a grid voltage sags control strategy for photovoltaic inverter based on adaptive dynamic reactive power compensation is proposed. First, voltage and current dual loop control strategy for photovoltaic inverter is adopted when grid voltage is normal, voltage sags...
A modeling and testing scheme for photovoltaic grid-connected inverter anti-islanding protection performance based on RT-LAB simulator is proposed. First, the model of power loop of grid-connected PV inverter anti-islanding protection test is established, which contains PV array model, photovoltaic inverter power circuit model, anti-islanding protection performance testing device model and grid model;...
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