Operating Strategies for Battery Storage Systems in Low-Voltage Grids to Limit the Feed-In Power of Solar Power Systems Using Fuzzy Control

Lühn, Tobias; Geldermann, Jutta

doi:10.1007/s12398-017-0198-7

Cited by 4 publications

(6 citation statements)

References 37 publications

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“…consumer, PV system, electricity grid and battery storage system. The model is typically applied in the residential sector with small roof-mounted PV installations (≤ 20 kW p ) and battery storage systems (≤ 100 kWh) (Lühn & Geldermann 2017).…”

Section: Simulation Modelmentioning

confidence: 99%

“…Some major manufacturers, such as SMA Solar Technology, sell storage systems with enhanced operating strategies. For example, grid-optimised operating strategies can be used to reduce curtailment losses when the PV storage system needs to comply with a feed-in limitation (Lühn & Geldermann 2017). For reasons of comparability, however, the simulations for the two countries in this paper are carried out without any feed-in limitation.…”

Section: Consumermentioning

confidence: 99%

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What drives the profitability of household PV investments, self-consumption and self-sufficiency?

2017

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Many countries introduced subsidy schemes that were successful in incentivising investments into residential solar PV. The resulting growth of the global PV market was accompanied by cost reductions for PV systems, reductions of PV subsidies and, often, increasing electricity retail prices. Along with decreasing costs for battery storages, these developments made self-consumption and self-sufficiency continuously more attractive. However, the profitability of PV-storage systems depends on many factors, including technological, political and geographical aspects. We present a simulation model to identify the most profitable sizes of PV and storage systems from a household perspective and explore what drives the profitability of self-consumption and self-sufficiency. We compare and contrast Germany and Ireland to account for regulatory and geographical differences. Our results show that PV-storage systems are generally profitable in Germany and that, after minor technology cost reductions, this result holds even in the absence of subsidies. In Ireland, such systems are not yet profitable but this may change soon with expected technology costs reductions. The share of electricity demand that will be required from the grid may be reduced to 25-35%. Implications for the electricity retail business and policy makers are discussed including distributional concerns and system efficiency considerations.

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Section: Simulation Modelmentioning

confidence: 99%

Section: Consumermentioning

confidence: 99%

What drives the profitability of household PV investments, self-consumption and self-sufficiency?

2017

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“…These factors are used to evaluate the reliability, economic, and environmental performance of HES. Some of these factors are shown in the following points and some other factors are shown in literatures [6,13,23,26,[47][48][49][50][51][52][53]:…”

Section: B Assessment Factorsmentioning

confidence: 99%

“…Renewable Energy Fraction (REF): This factor is representing the ratio of the generated energy from RES to the total energy supplied to the load that can be obtained from Eqn. (30) [47][48][49]. The greater the value of REF the greener HES.…”

Section: B Assessment Factorsmentioning

confidence: 99%

“…( 31) and ( 32 Curtailment losses c : Owing to the curtailment of the load some of the energy gets lost in the dummy load. The ratio of the lost energy in the dummy loads to the total demand load energy during the day is called the curtailment losses which can be determined from (33) [48]. (33) Power reduction ratio KPR: This factor is used to measure the ratio between the peak value of new load after using the DRS and the peak of the original load which can be obtained from Eqn.…”

Section: B Assessment Factorsmentioning

confidence: 99%

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Novel Fuzzy-Swarm Optimization for Sizing of Hybrid Energy Systems Applying Smart Grid Concepts

Eltamaly

Alotaibi

2021

IEEE Access

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A hybrid energy system (HES) is a perfect option for supplying electric energy to remote areas. A HES normally uses renewable energy sources such as wind and PV. Owing to the intermittent nature of these sources, HES should have batteries and/or conventional energy sources. HES proposed in this study is having wind, PV, batteries, and diesel generators. The design and operation of HES are considerably improved with the use of smart grid concepts. This study introduced a fuzzy logic controller to implement a new demand response strategy (DRS) where the electricity tariff is determined based on the state of charge of the battery, the charging/discharging power from the battery, and the previous response from the customers. A modified cuckoo search (MCS) optimization algorithm is introduced for sizing HES components for the lowest cost of energy (CoE) and loss of load probability (LOLP). A multiobjective function consisting of the CoE and LOLP is used to get the optimal design of HES. The MCS reduces the number of times that the optimization algorithm executes the objective function. The continuous reduction of the swarm size proposed in this paper enhances the exploration in the beginning and enhances exploitation at the final stage. The MCS is compared with 10 state-of-the-art optimization algorithms. The results from using MCS reduced the convergence time to 25-63% of the time needed by other optimization algorithms and the DRS introduced in this study reduced the CoE by 34% compared with the flat-rate pricing.INDEX TERMS Smart grid; hybrid energy system; fuzzy logic controller; sizing; demand response.

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Cuckoo-search optimized fuzzy-logic control of stationary battery storage systems

Truong

May

Martins

et al. 2017

2017 IEEE Electrical Power and Energy Conference (EPEC)

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Operating Strategies for Battery Storage Systems in Low-Voltage Grids to Limit the Feed-In Power of Solar Power Systems Using Fuzzy Control

Cited by 4 publications

References 37 publications

What drives the profitability of household PV investments, self-consumption and self-sufficiency?

What drives the profitability of household PV investments, self-consumption and self-sufficiency?

Novel Fuzzy-Swarm Optimization for Sizing of Hybrid Energy Systems Applying Smart Grid Concepts

Cuckoo-search optimized fuzzy-logic control of stationary battery storage systems

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