Current Mode Control of a Solar Inverter with MPPT Algorithm
| Autor: | Izsak Ferencz, Dorin Petreus |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Total harmonic distortion
Computer science 020208 electrical & electronic engineering Photovoltaic system 02 engineering and technology 010501 environmental sciences Solar inverter 01 natural sciences Maximum power point tracking Synchronization (alternating current) Control theory Frequency grid 0202 electrical engineering electronic engineering information engineering Inverter 0105 earth and related environmental sciences |
| Zdroj: | 2019 42nd International Spring Seminar on Electronics Technology (ISSE). |
| DOI: | 10.1109/isse.2019.8810278 |
| Popis: | In the last decade, grid-connected photovoltaic systems were studied and developed due to advance in the technology of solar panels, their price drop and the climatic crisis. This work will study, analyze and design a low power solar inverter. The most important design constraints for a solar inverter are: efficiency, maximum power point tracking (MPPT) performance and synchronization with the utility grid. The objective of this project is to find a solution for each (minimization of power losses, precise tracking of grid frequency). To achieve a satisfying efficiency, a current mode control loop in a two-dimensional control frame was implemented, with an enhanced phase-lock loop (EPLL) as the synchronization mechanism with the utility grid. For tracking the maximum point on the power curve of the solar cell, a classical hill climbing method was improved and integrated into the system. For simulations, Matlab Simulink software was used and input power versus output power was examined along with total harmonic distortion (THD) of the inverter's output current, while for experimental testing a dSPACE controller board and two Suntec Power solar panel. The paper is focused on the current mode control loop mathematical equations providing a simplified step by step design process. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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