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High-Frequency Integrated Point-of-Load Converters: Overview
Year: 2014
Fig. 1. (a) Existing and proposed distributed MPPT method for smart converter PV systems: Previous MPPT solution for smart converter.
To verify the proposed MPPT solution, a simulation is performed, the results of which are shown in Fig. 2. In this simulation, four panels have non-uniform irradiance, as shown in Fig. 2 (a). Firstly, the controller tracks the MPP for Panel 1, and fixes the output power of the other three panels, as shown in Fig. 2 (b). After finding the MPP for Panel 1, the controller tracks the MPP for Panel 2 and fixes the output power of the other three panels. Using the same method, the controller can track the MPP of the four panels one by one, as shown in Fig. 2 (c).
Fig. 1. (b) Proposed MPPT solution for smart converter.
Fig. 2. (a) Simulation results for the proposed MPPT solution for a cascaded smart converter: P-V curve of four panels
Fig. 2. (b) Start-up panel voltage.
Fig. 2. (c) Start-up panel power.
