Decentralized control of a scalable photovoltaic (PV)-battery hybrid power system

Kim, Myungchin; Bae, Sungwoo

doi:10.1016/j.apenergy.2016.12.037

Cited by 36 publications

(7 citation statements)

References 41 publications

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“…Therefore, control strategies that minimize those losses and maximize self-consumption are needed. Alternative strategies than a fixed feed-in limit prevent injection peaks are described in [17,18,14].…”

Section: Introductionmentioning

confidence: 99%

Control algorithm for a residential photovoltaic system with storage

2017

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High penetration of photovoltaic (PV) electricity could affect the stability of the low-voltage grid due to over-voltage and transformer overloading at times of peak production. Residential battery storage can smooth out those peaks and hence contribute to grid stability. A feed-in limit allows for the easy setting of a maximum power injection cap and motivates PV owners to increase their self-consumption. A simple control strategy for a residential battery system coupled with a PV system that maximizes selfconsumption and minimizes curtailment losses due to a feed-in limit is presented. The algorithm used in this strategy does not require a forecast of insulation conditions. The performance of this algorithm is compared to a second algorithm-a control strategy based on linear optimization using a forecast. Assuming an exact forecast, this second algorithm is very close to the maximum self-consumption and minimum curtailment losses achievable and can be used to benchmark the simple strategy. The results show that the simple strategy performs as well as the second algorithm with exact forecasts and performs significantly better than the second algorithm using real forecasts. Moreover, it is shown that this result is valid for a large range of storage capacities and PV sizes. Furthermore, it is shown that with a time resolution of 15 minutes for the input data (the resolution of most PV production and load data) self-consumption is overestimated by about 3 % and curtailment losses are underestimated by the same amount. Load sensitivity simulations show that different load curve shapes do not fundamentally change the results. Finally, to assess the effect of load aggregation, the case where the strategy is applied separately to 44 households with storage is compared to the case where it is applied to a centralized storage system of the same size as the total storage of the 44 households. The reduction of the curtailment losses with the number of aggregated houses is showed.Keywords: Photovoltaic (PV), Home storage system, Battery management strategy, PV integration into the electrical grid Highlights• A control strategy for a battery system coupled with a PV system is presented.• With a feed-in limit this strategy does not need a PV production forecast.• This strategy performs as well as a strategy relying on an exact forecast.• A relatively small storage size allows peak injection reduction of 50 %.

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Section: Introductionmentioning

confidence: 99%

Control algorithm for a residential photovoltaic system with storage

2017

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“…The paper [18] is discussed on supervision strategy, which is based on SOC monitoring of BSU. In photovoltaic/battery system, a decentralized control and newly architectural approach has been discussed to control the power management, where the battery storage is connected to DC bus [19]. In [20], [21] the power management strategy of a PV/battery system linked to the grid or islanded manages the active and reactive power and regulates the voltages of DC and AC buses.…”

Section: Issn: 2088-8694 mentioning

confidence: 99%

A study of power management approach in a grid connected hybrid renewable generation system

Rathod¹,

Bhuyan²,

Mishra³

2023

IJPEDS

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<p>Where sun irradiation is not continuous throughout the day, photovoltaic (PV) cells are used to supply solar power to the grid. A suitable power management plan is required to provide a steady power supply to the grid. The hybrid renewable generation system (HRGS) interconnected to the grid is the subject of this study, which provides a revolutionary power management method and control strategy. PV devices, a battery storage unit (BSU) charged by electricity generated from solar energy, and an auxiliary unit make up the HRGS concept (AU). Maximum power point tracking (MPPT) uses an improved perturb and observe (P&O) method to track maximal energy from solar irradiation. The peculiarity of this approach is that it uses a modified MPPT algorithm to handle power management throughout the process, allowing it to manage continuous power delivery to the grid based on load demand. It is capable of working under any load situation. The action of an L-C filter is utilized to decrease the total harmonic distortion (THD). The HRGS scheme's performance appraisals work correctly, achieve maximum productivity, and continually managing the power provided to the grid in a satisfactory way.</p>

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“…Along with the PV, wind power has already shown itself as a very low-cost and promising option. Albeit solar PV and wind can supplement each other to handle intermittent nature and can enhance overall reliability [ 65 ], an energy-storing stuff, such as batteries, ultra-capacitors and fuel cells, is normally an essential option to manage renewable intermittency, enhance energy efficiency and assure secure and good-quality power supply [ 66 , 67 ]. Diesel generators are sometimes used as back-ups to reduce power loss probability in off-grid hybrid systems [ 68 , 69 ].…”

Section: Literature Reviewmentioning

confidence: 99%

Green and renewable resources: an assessment of sustainable energy solution for Far North Queensland, Australia

Islam

Hassan

Rasul

et al. 2022

Int J Energy Environ Eng

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Remote communities, which do not have a connection to the national grid in Far North Queensland (FNQ), depend on dirty and costly diesel generators to meet their energy demands. The cost of power generation is considerable in those areas, because the diesel fuel must be carried by truck or ship and a fuel reserve must be held on-site in case of expected demand or weather closure. Moreover, Australia has an energy security issue in relation to liquid fuels. Australia is reliant on imported fuel such as diesel to fill the shortage, as domestic production and supply are unable to fulfil domestic demand. As a result, by deploying hybrid integrated renewable energy systems in remote areas, isolated communities may lower their power prices, enjoy a more secure and dependable source of electricity and minimise their carbon footprint by eliminating or reducing the usage of diesel. In this study, an extensive literature review has been conducted focussing on renewable resources for Australia and Far North Queensland, different hybrid energy systems including energy storage, and finally highlights the alternative clean and renewable energy options for Far North Queensland (FNQ) remote communities. In addition, this study has performed an assessment of renewable energy available from solar and wind resources considering climatic, geographical and economic aspects for FNQ. The literature review and the assessment show that solar and wind resources including hydrogen storage have significant potential for energy solution of FNQ. The assessment results indicate that selected regions of FNQ have suitable land area of 142,294.86 km 2 (55.94% of total selected areas) for solar and 144,563.80 km 2 (56.83% of total selected areas) for wind. The total calculated potential power can be 14,448 GW from solar PV and 1040.97 GW from wind energy. This study provides a significant pathway for parties interested in investing in renewable energy in FNQ. Moreover, knowing a land’s suitability will increase confidence and hence speed up the renewable energy investment.

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Decentralized control of a scalable photovoltaic (PV)-battery hybrid power system

Cited by 36 publications

References 41 publications

Control algorithm for a residential photovoltaic system with storage

Control algorithm for a residential photovoltaic system with storage

A study of power management approach in a grid connected hybrid renewable generation system

Green and renewable resources: an assessment of sustainable energy solution for Far North Queensland, Australia

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