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Rule-based control and optimization of a hybrid solar microgrid for rural electrification and heat supply in sub-Saharan Africa
Altes-Buch, Queralt; Orosz, Matthew; Quoilin, Sylvain et al.
2017In Proceedings of the 30th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems (ECOS)
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Keywords :
Microgrid; Rural electrification; Rule-based control; Particle Swarm Optimization; Rural heat supply; Sub-saharan Africa; ORC; Hybrid microgrid; Solar
Abstract :
[en] This work aims at developing, optimizing and controlling a hybrid solar microgrid for rural electrification and heat supply in sub-Saharan Africa. The considered system includes PV panels, Parabolic Trough Collectors, ORC and LPG generator, as well as battery and thermal energy storage. A special focus is paid to the co-optimization of the thermal and electrical load satisfaction since it can improve the overall energy efficiency of the system. To that end, different sub-component models are developed: - A building model to predict thermal loads of a health clinic in rural communities of Lesotho. - A microgrid model built by interconnecting the subcomponent models. - A rule-based control strategy, dispatching heat and electrical powers of each component to cover the demand while minimizing the fuel consumption. - A particle-swarm optimization of the microgrid under different cost assumptions. For the studied community of Ha Nkau in Lesotho, the determined optimal system infrastructure is composed of PV (66 kW) and batteries (262 kWh), and the optimum control strategy achieves a levelized cost of electricity of 0.203 USD/kWh. Fuel consumption is mainly due to the burner, which supplies most of the thermal load together with CSP (66 m2) and TES (86 kWh).
Research center :
Univeristy of Liège
Massachusetts Institute of Technology
STG International
Disciplines :
Energy
Author, co-author :
Altes-Buch, Queralt ;  Université de Liège > Département d'aérospatiale et mécanique > Systèmes de conversion d'énergie pour un dévelop.durable
Orosz, Matthew
Quoilin, Sylvain  ;  Université de Liège > Département d'aérospatiale et mécanique > Systèmes énergétiques
Lemort, Vincent  ;  Université de Liège > Département d'aérospatiale et mécanique > Systèmes énergétiques
Language :
English
Title :
Rule-based control and optimization of a hybrid solar microgrid for rural electrification and heat supply in sub-Saharan Africa
Publication date :
2017
Event name :
The 30th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems
Event place :
San Diego, United States
Event date :
JULY 2-JULY 6, 2017
Audience :
International
Main work title :
Proceedings of the 30th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems (ECOS)
Peer reviewed :
Peer reviewed
Available on ORBi :
since 12 August 2017

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