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GRID ACCESS CURRENT CONTROL METHOD WITHOUT CURRENT SENSOR APPLICABLE TO GRID-CONNECTED INVERTER
GRID ACCESS CURRENT CONTROL METHOD WITHOUT CURRENT SENSOR APPLICABLE TO GRID-CONNECTED INVERTER
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机译:适用于并网逆变器的无电流传感器的电网接入电流控制方法
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摘要
A grid access current control method without current sensor applicable to a grid-connected inverter relates to a system including a main circuit of the grid-connected inverter and a control circuit of the grid-connected inverter. The control circuit of the grid-connected inverter includes a grid access current open-loop control module and a PWM generation module; the grid access current open-loop control module includes a first proportional regulator, a second proportional regulator, a delayer, and an adder; input ends of the first proportional regulator and the second proportional regulator each are led out as an input end of a grid access current reference signal; and an output end of the first proportional regulator is connected to an input end of the adder; an output end of the second proportional regulator is connected to an input end of the delayer.
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