دانلود رایگان مقاله انگلیسی, طراحی کنترل کننده برای اینورتر نوع LCL متصل به شبکه

Step-by-Step Controller Design for LCL-Type Grid-Connected Inverter with Capacitor–Current-Feedback Active-Damping

سال انتشار : 2015

نوع مقاله : IEEE JOURNALS & MAGAZIENS

تعداد صفحات : 15

Abstract—The injected grid current regulator and active damping

of the LCL filter are essential to the control of LCL-type gridconnected

inverters. Generally speaking, the current regulator

guarantees the quality of the injected grid current, and the active

damping suppresses the resonance peak caused by the LCL

filter and makes it easier to stabilize the whole system. Based

on the proportional-integral (PI) and proportional-resonant (PR)

compensator together with capacitor–current-feedback activedamping

which are widely used for their effectiveness and simple

implementations, this paper proposes a simple step-by-step controller

designmethod for the LCL-type grid-connected inverter. By

carefully dealing with the interaction between the current regulator

and active damping, the complete satisfactory regions of the

controller parameters formeeting the system specifications are obtained,

and from which the controller parameters can be easily

picked out. Based on these satisfactory regions, it is more convenient

and explicit to optimize the system performance. Besides,

the insight of tuning the controller parameters from these satisfactory

regions is also discussed. Simulation and experimental results

verify the proposed step-by-step design method

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