Switched Circuits with Initial Energy Storage

Metal hydrides are one of the types of functional materials that allow safe and compact storage of a large amount of hydrogen, which is increasingly used today as an alternate fuel or energy source. The possibility of obtaining the initial energy necessary for the production of hydrogen by electrolysis process from renewable energy sources, such as solar panels and wind generators, makes hydrogen energetic quite attractive and rapidly developing industry sector. Solid form of hydrogen storage with the possibility of reversible sorption, gives opportunity for creation autonomous energy storage systems. La-Ni based alloys allow hydrogen storing at ambient temperatures and pressure not higher than 15 bar, which makes the application of these alloys quite practical, interesting and prospects for analysis and modifications on the ways of stored hydrogen capacity increasing, alloys price reducing and application for renewable energy storage.

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Electric Vehicles Mileage Extender Kinetic Energy Storage

Journal of Theoretical and Applied Mechanics ◽

10.1515/jtam-2015-0002 ◽

2015 ◽

Vol 45 (1) ◽

pp. 17-38

Author(s):

Venelin Jivkov ◽

Vutko Draganov ◽

Yana Stoyanova

Keyword(s):

Energy Storage ◽

Kinetic Energy ◽

Energy Levels ◽

Minimum Energy ◽

Initial Energy ◽

Additional Increase ◽

Hybrid Propulsion ◽

Energy Demands ◽

Energy Recuperation ◽

Energy Buffer

Abstract The proposed paper considers small urban vehicles with electric hybrid propulsion systems. Energy demands are examined on the basis of European drive cycle (NEUDC) and on an energy recuperation coefficient and are formulated for description of cycle energy transfers. Numerical simulation results show real possibilities for increasing in achievable vehicle mileage at the same energy levels of a main energy source - the electric battery. Kinetic energy storage (KES), as proposed to be used as an energy buffer and different structural schemes of the hybrid propulsion system are commented. Minimum energy levels for primary (the electric battery) and secondary (KES) sources are evaluated. A strategy for reduced power flows control is examined, and its impact on achievable vehicle mileage is investigated. Results show an additional increase in simulated mileage at the same initial energy levels.

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Optimal Asset Planning for Prosumers Considering Energy Storage and Photovoltaic (PV) Units: A Stochastic Approach

Energies ◽

10.3390/en13071813 ◽

2020 ◽

Vol 13 (7) ◽

pp. 1813 ◽

Cited By ~ 5

Author(s):

Eleonora Achiluzzi ◽

Kirushaanth Kobikrishna ◽

Abenayan Sivabalan ◽

Carlos Sabillon ◽

Bala Venkatesh

Keyword(s):

Energy Storage ◽

Distribution System ◽

Renewable Energy Sources ◽

Stochastic Approach ◽

Initial Energy ◽

Mixed Integer ◽

Optimal Size ◽

Solar Pv ◽

Pv System ◽

Battery Energy

In the distribution system, customers have increasingly use renewable energy sources and battery energy storage systems (BESS), transforming traditional loads into active prosumers. Therefore, methodologies are needed to provide prosumers with tools to optimize their investments and increase business opportunities. In this paper, a stochastic mixed integer linear programming (MILP) formulation is proposed to solve for optimal sizes of prosumer assets, considering the use of a BESS and photovoltaic (PV) units. The objective is to minimize the total cost of the system, which is defined as the combination of a solar PV system investment, BESS investment, maintenance costs of assets, and the cost of electricity supplied by the grid. The developed method defines the optimal size of PV units, the power/energy capacities of the BESS, and the optimal value for initial energy stored in the BESS. Both deterministic and stochastic approaches were explored. For each approach, the proposed model was tested for three cases, providing a varying combination of the use of grid power, PV units, and BESS. The optimal values from each case were compared, showing that there is potential to achieve more economic plans for prosumers when PV and BESS technologies are taken into account.

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Progress and perspectives on halide lithium conductors for all-solid-state lithium batteries

Energy & Environmental Science ◽

10.1039/c9ee03828k ◽

2020 ◽

Vol 13 (5) ◽

pp. 1429-1461 ◽

Cited By ~ 21

Author(s):

Xiaona Li ◽

Jianwen Liang ◽

Xiaofei Yang ◽

Keegan R. Adair ◽

Changhong Wang ◽

...

Keyword(s):

Energy Storage ◽

Solid State ◽

Lithium Batteries ◽

Electrochemical Stability ◽

Superionic Conductors ◽

Fundamental Understanding ◽

Potential Applications ◽

Synthesis Routes

This review focuses on fundamental understanding, various synthesis routes, chemical/electrochemical stability of halide-based lithium superionic conductors, and their potential applications in energy storage as well as related challenges.

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An aqueous hybrid electrolyte for low-temperature zinc-based energy storage devices

Energy & Environmental Science ◽

10.1039/d0ee01538e ◽

2020 ◽

Vol 13 (10) ◽

pp. 3527-3535 ◽

Cited By ~ 1

Author(s):

Nana Chang ◽

Tianyu Li ◽

Rui Li ◽

Shengnan Wang ◽

Yanbin Yin ◽

...

Keyword(s):

Energy Storage ◽

Low Temperature ◽

Energy Storage Devices ◽

Storage Devices

A frigostable aqueous hybrid electrolyte enabled by the solvation interaction of Zn2+–EG is proposed for low-temperature zinc-based energy storage devices.

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Ultrahigh Energy Storage Performances of Polymer-based Nanocomposite via Interfaces Engneering

Journal of Materials Chemistry A ◽

10.1039/d0ta10044g ◽

2020 ◽

Author(s):

Peng Wang ◽

Zhongbin Pan ◽

Weilin Wang ◽

Jianxu Hu ◽

Jinjun Liu ◽

...

Keyword(s):

Dielectric Constant ◽

Energy Storage ◽

High Performance ◽

Breakdown Strength ◽

Composite Films ◽

Power Electronic ◽

Ultrahigh Energy

High-performance electrostatic capacitors are in urgent demand owing to the rapidly development of advanced power electronic applications. However, polymer-based composite films with both high breakdown strength (Eb) and dielectric constant...

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