Conference Proceeding

Adaptive DC bus voltage control for renewable energy production systems with uncertainties

04/2011; DOI:10.1109/ICIT.2011.5754343 pp.44 - 47 In proceeding of: Industrial Technology (ICIT), 2011 IEEE International Conference on
Source: IEEE Xplore

ABSTRACT This paper introduces an adaptive DC bus voltage control strategy for renewable energy systems, combining different energy storage devices, i.e., batteries, fuel cells, and supercapacitors. Multiple bidirectional DC-DC converters accurate control is achieved with no source voltage sensing, which reduces the number of sensors. Unlike many adaptive controllers, the proposed strategy uses a single adaptive parameter, which yields reduced complexity. The proposed approach is compared to a classical PI-based cascaded control scheme. The adaptive control strategy achieves better performance, which yields a high-efficiency operation of the overall system.

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Keywords

adaptive control strategy
 
adaptive controllers
 
adaptive DC bus voltage control strategy
 
classical PI-based cascaded control scheme
 
different energy storage devices
 
fuel cells
 
Multiple bidirectional DC-DC converters accurate control
 
proposed approach
 
proposed strategy
 
renewable energy systems
 
single adaptive parameter