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- Title
Performance optimisation for novel green plug-energy economizer in micro-grids based on recent heuristic algorithm.
- Authors
Gabbar, Hossam A.; Othman, Ahmed M.
- Abstract
This study presents technical issues to enhance the micro-grids (MGs) performance. Novel distributed flexible AC transmission system (D-FACTS) is applied on AC/DC MGs to achieve full utilization of distributed generations (DGs), and to improve power quality and system stability. That D-FACTS is called green plug-energy economizer (GP-EE) device, which is proposed with two schemes to be applied on both DC/AC terminals of MG. DGs are used within MGs so that they can meet dynamic load patterns. Proposed design of MG includes photovoltaic, fuel cell, battery, storage system, micro-gas turbine and wind turbine. GP-EE device will be controlled by PID modified weighted controller. Dynamic tri-loop error driven will be enhanced by extra supplementary regulation loops to ensure power factor correction, stabilize buses voltage, reduce feeder losses and power quality enhancement. A recent heuristic optimization technique is called backtracking search algorithm, and is proposed for optimal selection of the scheme parameters of pulse-width modulation pulsing stage of GP-EE to dynamically online gains adjustment of PID tri-loop regulation process and minimization of the global control error. Digital simulations have been validated GP-EE schemes effectiveness based on without and with modules performance. Achieved results show applicability and improved performance using the proposed technique.
- Subjects
DISTRIBUTED power generation; DYNAMIC loads; MECHANICAL loads; WIND turbines; GAS turbines; ECONOMIZERS (Heat recovery); SEARCH algorithms
- Publication
IET Generation, Transmission & Distribution (Wiley-Blackwell), 2016, Vol 10, Issue 3, p678
- ISSN
1751-8687
- Publication type
Article
- DOI
10.1049/iet-gtd.2015.0098