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Energy Storage Requirements for PV Power Ramp Rate Control in Northern Europe
摘要： Photovoltaic (PV) generators suffer from fluctuating output power due to the highly fluctuating primary energy source. With significant PV penetration, these fluctuations can lead to power system instability and power quality problems. The use of energy storage systems as fluctuation compensators has been proposed as means to mitigate these problems. In this paper, the behavior of PV power fluctuations in Northern European climatic conditions and requirements for sizing the energy storage systems to compensate them have been investigated and compared to similar studies done in Southern European climate. These investigations have been performed through simulations that utilize measurements from the Tampere University of Technology solar PV power station research plant in Finland. An enhanced energy storage charging control strategy has been developed and tested. Energy storage capacity, power, and cycling requirements have been derived for different PV generator sizes and power ramp rate requirements. The developed control strategy leads to lesser performance requirements for the energy storage systems compared to the methods presented earlier. Further, some differences on the operation of PV generators in Northern and Southern European climates have been detected.
关键词： Photovoltaic generators,energy storage systems,power fluctuations,Northern European climate,ramp rate control
更新于2025-09-23 15:21:01
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[IEEE 2019 IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia) - Chengdu, China (2019.5.21-2019.5.24)] 2019 IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia) - Coordinated Control Strategy of Electric Vehicles and Energy Storage System for Smoothing Power Fluctuations of Photovoltaics
摘要： The increasing penetration of distributed photovoltaic (PV) generation causes significant power fluctuations in the distribution network. To maintain power quality and reliability, some measures must be taken to manage these fluctuations. Energy storage system (ESS) which have the advantages of high power density and fast charging and discharging switching speed are widely proposed to smooth the PV fluctuations. However, the operation cost of ESS is expensive. Dispatching charging and discharging power of EV is an economical way to solve the problem, but the dispatchable capacity of EV is not always sufficient. Therefore, we propose a real-time control strategy that the PV power fluctuations can be smoothed by EVs and ESS, in which a convex optimization model is established to solve the problem. This strategy smooths the PV power under the uncertainties of the PV output using the flexibility of the EV. The smoothing performances can be ensured by ESS output when the dispatching capacity of EV is insufficient. The smoothing error is controllable with the convex optimization model. The proposed strategy is able to reduce the total installed capacity and avoid the overcharge and overdischarge of ESS. Case studies were carried out to demonstrate the validity and application advantages of the strategy.
关键词： power fluctuations,Distributed photovoltaics,real-time optimal dispatching,energy storage system,electric vehicles
更新于2025-09-16 10:30:52
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[IEEE 2018 International conference on computation of power, energy, Information and Communication (ICCPEIC) - Chennai, India (2018.3.28-2018.3.29)] 2018 Internat2018 International Conference on Computation of Power, Energy, Information and Communication (ICCPEIC)ional conference on computation of power, energy, Information and Communication (ICCPEIC) - Modelling and Control of BESS for Solar Integration for PV Ramp Rate Control
摘要： PV power varies with the passing of clouds; these variations can affect power quality and system uniformity. PV system is combining with a storage device to mitigate the variations in power. During the fast movement of clouds causes sudden changes in power. Sudden changes can limit through ramp rate control. In this work employing a ramp rate control with energy storage system is capable of maintaining the system stability. This work is aimed to design a battery-based storage system integration with considered 500 kW solar photovoltaic power plant using ramp rate control method. The control scheme is tested and validated using MATLAB/Simulink environment.
关键词： solar PV,Power fluctuations smoothing,energy storage,battery,grid-connected PV plants,ramp rate control
更新于2025-09-10 09:29:36