scholarly journals Cost-optimal operation of energy storage units: Benefits of a problem-specific approach

2016 ◽  
Vol 6 ◽  
pp. 11-21 ◽  
Author(s):  
Lars Siemer ◽  
Frank Schöpfer ◽  
David Kleinhans
Keyword(s):  
Energy Storage ◽  
Optimal Operation ◽  
Specific Approach ◽  
Storage Units

scholarly journals The Value and Optimal Sizes of Energy Storage Units in Solar-Assist Cogeneration Energy Hubs

2020 ◽  
Vol 10 (14) ◽  
pp. 4994
Author(s):  
Xiaotao Chen ◽  
Yang Si ◽  
Chengkui Liu ◽  
Laijun Chen ◽  
Xiaodai Xue ◽  
...  
Keyword(s):  
Energy Storage ◽  
Optimal Operation ◽  
Affine Function ◽  
Energy Hub ◽  
Solar Thermal Collector ◽  
Optimal Value ◽  
Industrial Use ◽  
The Cost ◽  
Storage Units ◽  
Operation Cost

Cogeneration is becoming increasingly popular in building and community energy systems with demands on electricity and heat, which is suitable for residential and industrial use in remote areas. This paper considers a stand-alone cogeneration energy hub. The electrical and thermal energies are produced by a combined heat and power (CHP) unit, photovoltaic panels, and a solar thermal collector. Since solar units generate no electricity and heat during the night, energy storage units which shift demands over time can promote the usage of solar energy and reduce the fuel cost of the CHP unit. This paper proposes a method to retrieve the optimal operation cost as an explicit function in the capacity parameters of electric and thermal energy storage units, reflecting the value of energy storage in the cogeneration energy hub. The capacity parameter set is divided into a collection of polyhedrons; on each polyhedron, the optimal value is an affine function in the capacity parameters. Furthermore, the optimal sizes of system components are discussed. The capacity of the CHP unit is determined from a linear program, ensuring supply adequacy; the capacities of solar generation and energy storage units are calculated based on the cost reduction and the budget. Case studies demonstrate the effectiveness of the proposed method.

scholarly journals Optimal Sizing Procedure for Electric Vehicle Supply Infrastructure Based on DC Microgrid with Station Commitment

Energies ◽  
2019 ◽  
Vol 12 (10) ◽  
pp. 1901 ◽  
Author(s):  
Benedetto Aluisio ◽  
Maria Dicorato ◽  
Imma Ferrini ◽  
Giuseppe Forte ◽  
Roberto Sbrizzai ◽  
...  
Keyword(s):  
Energy Storage ◽  
Electric Vehicles ◽  
Power Supply ◽  
Energy Exchange ◽  
Optimal Operation ◽  
Dc Microgrid ◽  
Photovoltaic Panels ◽  
Specific Approach ◽  
Definition Of

The diffusion of electric vehicles (EVs) can be sustained by the presence of integrated solutions offering parking and clean power supply. The recourse to DC systems allows better integration of EV bidirectional energy exchange, photovoltaic panels, and energy storage. In this paper, a methodology for optimal techno-economic sizing of a DC-microgrid for covering EV mobility needs is carried out. It is based on the definition of different scenarios of operation, according to typical EV usage outlooks and environmental conditions. In each scenario, optimal operation is carried out by means of a specific approach for EV commitment on different stations. The sizing procedure is able to handle the modular structure of microgrid devices. The proposed approach is applied to a case study of an envisaged EV service fleet for the Bari port authority.

Optimal operation of dispersed energy storage units in electric power systems

1983 ◽  
Vol 103 (4) ◽  
pp. 40-48
Author(s):  
Satoshi Morozumi ◽  
Kenichi Nishiya ◽  
Jun Hasegawa ◽  
Hajime Fujiwara
Keyword(s):  
Energy Storage ◽  
Power Systems ◽  
Electric Power ◽  
Electric Power Systems ◽  
Optimal Operation ◽  
Storage Units
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