Optimization of the hybrid solar power plants comprising photovoltaic and concentrating solar power using the butterfly algorithm

•The dispatch of hybrid power consisted of PV and CSP is optimized by butterfly algorithm.•The configuration of TES capacity of CSP with 6 h can achieve stable and continuous power output.•Hybrid power provides a growth by 4.2% for power production and reduces by 10.4% of system operation cost.•The...

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Bibliographic Details
Published in:Energy conversion and management 2022-04, Vol.257, p.115310, Article 115310
Main Authors: Kong, Ling-gang, Chen, Xin-long, Gong, Jing-hu, Fan, Duo-jin, Wang, Bao-li, Li, Shuo
Format: Article
Language:English
Subjects:
Algorithms
Butterfly algorithm
Concentrating solar power
Economics
Electric power generation
Electricity
Electricity pricing
Energy storage
Hybrid power
Hybrid systems
Optimization
Peak-valley electricity price
Photovoltaic
Photovoltaic cells
Photovoltaics
Power plants
Scheduling optimization
Solar energy
Solar power
Solar radiation
Thermal energy
Thermal power
Valleys
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Summary:•The dispatch of hybrid power consisted of PV and CSP is optimized by butterfly algorithm.•The configuration of TES capacity of CSP with 6 h can achieve stable and continuous power output.•Hybrid power provides a growth by 4.2% for power production and reduces by 10.4% of system operation cost.•The effect of the hybrid solar power with peak-valley electricity prices has a better economic performance. This study optimized grid intermittency and instability resulting from photovoltaic (PV) by adding concentrating solar power (CSP) equipped with thermal energy storage (TES), which can be used to form hybrid solar power for grid dispatching. The PV–CSP were optimized by using a hybrid butterfly algorithm to meet the power generation demands and lowest system operation costs. Based on the optimal output and operating characteristics of hybrid power, the economics of peak-valley and fixed electricity prices were studied and compared. The optimal TES capacity was 6-h electricity generation. Hybrid power with optimal TES capacity could achieve a 4.2% increase for power production and 10.4% decrease for operation cost. The peak-valley price provided a better economic benefit than the fixed electricity price. A reasonable configuration of TES can ensure the flexibility and stability of hybrid plant. Hybrid power contributes to a flexible use of dispatch capabilities by equipped with TES, making PV power completely utilize, especially during the periods of high solar radiation. For power systems, hybrid power can be used to replace partly conventional thermal power to achieve highly economic and environmental benefits.
ISSN:0196-8904
1879-2227
DOI:10.1016/j.enconman.2022.115310