Modular Hybrid Energy Concept Employing a Novel Control Structure Based on a Simple Analog System

摘要

—This paper proposes a novel control topologyudwhich enables the setup of a low cost analog system leading toudthe implementation of a modular energy conversion system.udThe modular concept is based on hybrid renewable energyud(solar and wind) and uses high voltage inverters alreadyudavailable on the market. An important feature of the proposedudtopology is a permanently active current loop, which assuresudshort circuit protection and simplifies the control loopsudcompensation. The innovative analogue solution of the controludstructure is based on a dedicated integrated circuit (IC) forudpower factor correction (PFC) circuits, used in a newudconfiguration, to assure an efficient inverter start-up. Theudenergy conversion system (control structure and maximumudpower point tracking algorithm) is simulated using a newudmacromodel-based concept, which reduces the usualudcomputational burden of the simulator and achieves highudprocessing speed. The proposed novel system is presented inudthis article from concept, through the design andudimplementation stages, is verified through simulation and isudvalidated by experimental results.