Review of storage schemes for wind energy systems

Hasan, Nor Shahida; Hassan, Mohammad Yusri; Majid, Shah; Rahman, Hasimah Abdul

doi:10.1016/j.rser.2012.12.028

Cited by 131 publications

(47 citation statements)

References 62 publications

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“…Hydrogen can be stored as compressed gas [199][200][201][202], cryogenic liquid [202], in solids (metal hydrides, carbon materials) [203] and in liquid carriers (methanol, ammonia) [171], though large-scale hydrogen storage is still challenging and expensive. Converting hydrogen to electricity in a fuel cell produces only water vapor as a side product.…”

Section: Hydrogenmentioning

confidence: 99%

Review of energy system flexibility measures to enable high levels of variable renewable electricity

Lund

Lindgren

Mikkola

et al. 2015

Renewable and Sustainable Energy Reviews

1,252

578

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Title: Review of energy system flexibility measures to enable high levels of variable renewable electricity Article Type: Review Article Keywords: energy system flexibility; DSM; energy storage; ancillary service; electricity market; smart grid Abstract: The paper reviews different approaches, technologies, and strategies to manage large-scale schemes of variable renewable electricity such as solar and wind power. We consider both supply and demand side measures. In addition to presenting energy system flexibility measures, their importance to renewable electricity is discussed. The flexibility measures available range from traditional ones such as grid extension or pumped hydro storage to more advanced strategies such as demand side management and demand side linked approaches, e.g. the use of electric vehicles for storing excess electricity, but also providing grid support services. Advanced batteries may offer new solutions in the future, though the high costs associated with batteries may restrict their use to smaller scale applications. Different "P2Y"-type of strategies, where P stands for surplus renewable power and Y for the energy form or energy service to which this excess in converted to, e.g. thermal energy, hydrogen, gas or mobility are receiving much attention as potential flexibility solutions, making use of the energy system as a whole. To "functionalize" or to assess the value of the various energy system flexibility measures, these need often be put into an electricity/energy market or utility service context. Summarizing, the outlook for managing large amounts of RE power in terms of options available seems to be promising. AbstractThe paper reviews different approaches, technologies, and strategies to manage large-scale schemes of variable renewable electricity such as solar and wind power. We consider both supply and demand side measures. In addition to presenting energy system flexibility measures, their importance to renewable electricity is discussed. The flexibility measures available range from traditional ones such as grid extension or pumped hydro storage to more advanced strategies such as demand side management and demand side linked approaches, e.g. the use of electric vehicles for storing excess electricity, but also providing grid support services. Advanced batteries may offer new solutions in the future, though the high costs associated with batteries may restrict their use to smaller scale applications. Different -P2Y‖-type of strategies, where P stands for surplus renewable power and Y for the energy form or energy service to which this excess in converted to, e.g. thermal energy, hydrogen, gas or mobility are receiving much attention as potential flexibility solutions, making use of the energy system as a whole. To -functionalize‖ or to assess the value of the various energy system flexibility measures, these need often be put into an electricity/energy market or utility service context. Summarizing, the outlook for managing large amounts of RE power in terms of options avai...

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Section: Hydrogenmentioning

confidence: 99%

Review of energy system flexibility measures to enable high levels of variable renewable electricity

Lund

Lindgren

Mikkola

et al. 2015

Renewable and Sustainable Energy Reviews

1,252

578

View full text Add to dashboard Cite

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“…During the 1950s flywheels were used to build gyro buses [43], first generation FESS comprised of a large steel wheel attached to an axle. After advancement in materials in 1970s, the light and high tensile strength carbon composite rotors were used in FESS [44]. Successful research and advancement in magnetic materials, magnetic bearings and modern power electronics have made it possible for flywheel technology to compete with other energy storage systems and specifically with electro chemical batteries and super capacitors [45].…”

Section: Introductionmentioning

confidence: 99%

Performance and Loss Analysis of Squirrel Cage Induction Machine Based Flywheel Energy Storage System

et al. 2019

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Flywheel energy storage systems (FESS) are one of the earliest forms of energy storage technologies with several benefits of long service time, high power density, low maintenance, and insensitivity to environmental conditions being important areas of research in recent years. This paper focusses on the electrical machine and power electronics, an important part of a flywheel system, the electrical machine rotating with the flywheel inertia in order to perform charge-discharge cycles. The type of machine used in the electrical drive plays an important role in the characteristics governing electrical losses as well as standby losses. Permanent magnet synchronous machine (PMSM) and induction machines (IM) are the two most common types of electric machines used in FESS applications where the latter has negligible standby losses due to its lower rotor magnetic field until energised by the stator. This paper describes research in which the operational and standby losses of a squirrel-cage induction machine-based flywheel storage system (SCIM-FESS) are modelled as a system developed in MATLAB/Simulink environment inclusive of the control system for the power electronics converters. Using the proposed control algorithm and in-depth analysis of the system losses, a detailed assessment of the dynamic performance of the SCIM-FESS is performed for different states of charging, discharging, and standby modes. The results of the analysis show that, in presence of system losses including aerodynamic and bearing friction losses, the SCIM-FESS has satisfactory characteristics in energy regulation and dynamic response during load torque variations. The compliance of FESS and its conversion between the generating and motoring mode within milliseconds show the responsiveness of the proposed control system. Appl. Sci. 2019, 9, 4537 2 of 26 there are various solutions proposed to ensure network stability and reliability with RES including demand management, interconnection with external grids, and ESS [5].There are ranges of systems involved in energy storage process, which can convert, store and deliver energy on demand. Performance of these systems depends on the amount of energy they can store, the storage time and delivery of energy with minimum losses [6]. Therefore, high power capability, high efficiency, low capital cost and environmentally friendly attributes improve the value of ESS [7].A FESS is an assembly of a rotating mass, electrical machine, power electronics converter, bearing system and containment. The design of the rotor used in FESS depends on the materials from which they are made. Solid disk or solid cylinder are made from isotropic materials like steel. Rim type or hollow cylinder flywheel rotors are constructed from non-isotropic material like composite carbon fiber. Solid disk or solid cylinder flywheel rotors have simple construction and are commonly used [8]. Solid rotor flywheels exhibit less displacement from axes due to centrifugal forces hence simplifying flywheel attachment to the shaft and with ele...

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“…Depending on the technology, some characteristics prevail over others. For instance, several battery types are well developed for large scale energy storage in the range of hours [7,8], whereas ultracapacitors or superconducting magnetic energy storage are better suited for very fast power exchange applications [5,8,9]. The hydrogen technology appears as an exceptional long-term storage alternative in the so-called power-to-gas plants [10].…”

Section: Introductionmentioning

confidence: 99%