Controller for the Grid-Connected Microinverter Output Current Tracking
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TLDR
The obtained results show that in the case when the proportional constant of the PI controller varies in time according to the appropriate law, the microinverter output current sinus shape distortions decrease as compared to the cases when the ordinary PI controller is used.Abstract:
The modification of the proportional–integral (PI) controller with the variable proportional constant for tracking of the grid-connected photovoltaic microinverter output current has been proposed. The obtained results show that in the case when the proportional constant of the PI controller varies in time according to the appropriate law, the microinverter output current sinus shape distortions decrease as compared to the case when the ordinary PI controller is used. The operation of the microinverter with the proposed controller was investigated for the cases when the electrical grid voltage sinus shape is not distorted and when it is distorted by the higher harmonics.read more
Citations
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References
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A New Feedback Method for PR Current Control of LCL-Filter-Based Grid-Connected Inverter
TL;DR: A new current feedback method for PR current control is proposed, where the weighted average value of the currents flowing through the two inductors of the LCL filter is used as the feedback to the current PR regulator.
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Optimal Design of Microgrids in Autonomous and Grid-Connected Modes Using Particle Swarm Optimization
Mohamed Hassan,M. A. Abido +1 more
TL;DR: In this paper, the optimal design of LC filter, controller parameters, and damping resistance is carried out in case of grid-connected mode, while controller parameters and power sharing coefficients are optimized in case for autonomous mode.