0000000000704047

AUTHOR

Jörg Petrasch

showing 3 related works from this author

Decentralized price-driven grid balancing via repurposed electric vehicle batteries

2017

Abstract The share of electricity generated from intermittent renewable sources, e.g., wind and solar grows rapidly. This affects grid stability and power quality. If the share of renewable power generation is to be increased further, additional flexibilities must be introduced. Aggregating small, distributed loads and energy storage facilities is a good medium-term option. In this paper, the suitability of decentralized and on-site optimized storage system consisting of repurposed electric vehicle batteries for grid balancing is investigated. Battery operation is controlled via an optimization procedure, which relies on a one-way communicated pseudo-cost function (PCF). Day-ahead electrici…

EngineeringMathematical optimizationbusiness.product_category020209 energy02 engineering and technologyIndustrial and Manufacturing EngineeringEnergy storageElectric vehicleIntermittent energy source0202 electrical engineering electronic engineering information engineering0601 history and archaeologyElectrical and Electronic EngineeringInteger programmingCivil and Structural EngineeringSequential quadratic programming060102 archaeologybusiness.industryMechanical EngineeringElectrical engineering06 humanities and the artsBuilding and ConstructionGridPollutionRenewable energyGeneral EnergyDistributed generationbusinessEnergy
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Decentralized on-site optimization of a battery storage system using one-way communication

2015

Intermittent renewable energy sources (e.g. wind, solar energy systems) have been providing an exponentially growing share of electricity generation. Due to their highly transient and stochastic nature, they pose substantial challenges for power grid operation. Power dispatched from these sources are uncontrolled and do not necessarily coincide with demand; this in turn affects power quality. Hence, extensive demand side management (DSM) is required. DSM relies on flexible loads as well as energy storage facilities. Furthermore, renewable power generation is by its very nature highly distributed and consists of large numbers of small units. These have a substantial effect on traditional pow…

Battery (electricity)Stand-alone power systemEngineeringElectricity generationbusiness.industryDistributed generationElectricity pricingIntermittent energy sourceElectrical engineeringbusinessEnergy storageRenewable energyReliability engineering
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Field testing of repurposed electric vehicle batteries for price-driven grid balancing

2019

Abstract As electric cars become more widespread, the disposal and recycling of used batteries will become an important challenge. Typically, vehicle batteries are replaced if their capacity drops to 70–80% of initial capacity. However, they may still be useful for stationary applications. In this paper, results from a field test of a molten salt high-temperature electric vehicle battery repurposed as stationary storage for grid balancing are presented. In a previous study, we have shown that a mixed integer linear programming control strategy driven by a spot-market price for electricity is best suited for an implementation on hardware with limited computational resources. A 14-day experim…

business.product_categoryMean squared errorRenewable Energy Sustainability and the Environmentbusiness.industryComputer science020209 energyEnergy Engineering and Power Technology02 engineering and technology021001 nanoscience & nanotechnologyGridAutomotive engineeringState of chargeElectric vehicle0202 electrical engineering electronic engineering information engineeringElectric-vehicle batteryElectricityElectrical and Electronic Engineering0210 nano-technologybusinessInteger programmingEfficient energy useJournal of Energy Storage
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