*5.3. Comparison of the Proposed PVMT-Based FLDPC with Other MG Power Controllers*

In this section, a comparative study is conducted between the proposed PLL-less PVMT-based FLDPC method and other grid-tied MG power control methods from [5–7,9,11]. The controllers were modelled in RSCAD, and their performances were tested by implementing them for controlling PV-VSI, as shown in Figure 1. The results were obtained by conducting real-time simulations in RTDS, and to make a fair comparison during simulations, all the parameters of MG were set similarly. The results of the comparative study are presented in Table 3 which shows that the proposed PVMT-based FLDPC method exhibited better performance than the other MG power control methods.

All the results are presented for the period of 1–2 s, when AC-MG was operating in grid-tied mode. For instance, the reference power tracking time of the proposed DPC controller was 0.20 s, 0.195 s, 0.185 s, 0.12 s, 0.14 s and 0.19 s faster than the controllers proposed in [5–7,9,11], respectively. Moreover, the PV-VSI output current THD was observed as 1.585%, approximately in the range of 2.264% to 3.289% lesser compared with the controllers in [5–7,9,11]. Furthermore, the power ripple in the output of PV-VSI controller by the proposed FLDPC was very low compared with the ripples that existed in the output power of PV-VSIs regulated by the controllers proposed in [5–7,9,11].


**Table 3.** Comparative analysis of the proposed PVMT-based FLDPC with other MG power controllers.
