Loop

Phase-locked loop design for solar inverter

This is achieved using a software phase locked loop (PLL). This application report discusses different challenges in the design of software phase locked loops and presents a methodology to design phase locked loops using C2000 controllers for single phase grid connection. . This paper considers a control strategy for inverter-based microsources within a mi-crogrid. The general control philosophy within a microgrid is that sources must rely only on local information, yet must cooperate with other sources. C2000. . This paper discusses one of the synchronization strategies that use Phase Locked Loop (PLL) and its various types for synchronization of the grid - side converter. Different PLL implementation structures and their major characteristics are pointed out. ! is the angular frequency of the required output voltage. [PDF Version]

Three-phase inverter double closed loop

This paper presents a novel double closed-loop PI controller design method for a three-phase inverter based on a binary-coded extremal optimization (BCEO) algorithm. . To address the issue of high Total Harmonic Distortion (THD) in three-phase grid-tied inverters, this study proposes a novel three-phase LCL grid-tied inverter. The use of LCL filters in power converters in microgrid applications is more preferred compared with L or LC filters because of their better harmonic attenuation capability. [PDF Version]