Research Article

An Improved Active Damping Method Based on Single-Loop Inverter Current Control for LCL Resonance in Grid-Connected Inverters

Figure 16

Experimental waveforms of the grid current when fres = 0.34 with different control strategies. (a) Only the asymmetric regular sampling method. (b) The proposed active damping method with the delay compensator. (c) The proposed active damping method with the lead compensator.
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(b)
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