Power Ramp-Rate Control via power regulation for storageless grid-connected photovoltaic systems

Riquelme-Dominguez, Jose Miguel; García-López, Francisco de Paula; Martínez, Sergio

doi:10.1016/j.ijepes.2021.107848

Cited by 8 publications

(2 citation statements)

References 26 publications

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“…The method presented in [33] uses MPP estimation while operating suboptimally to control photovoltaic power ramps. It works on the right side of the P-V curve through direct power control and regulates PV power following the maximum power ramp-rate permitted.…”

Section: Methods Based On Maximum Power Point Estimationmentioning

confidence: 99%

New Trends in the Control of Grid-Connected Photovoltaic Systems for the Provision of Ancillary Services

2022

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The gradual displacement of conventional generation from the energy mix to give way to renewable energy sources represents a paradigm shift in the operation of future power systems: on the one hand, renewable technologies are, in general, volatile and difficult to predict; and on the other hand, they are usually connected to the grid through electronic power converters. This decoupling due to power converters means that renewable generators lack the natural response that conventional generation has to the imbalances between demand and generation that occur during the regular operation of power systems. Renewable generators must, therefore, provide a series of complementary services for the correct operation of power systems in addition to producing the necessary amount of energy. This paper presents an overview of existing methods in the literature that allow photovoltaic generators to participate in the provision of ancillary services, focusing on solutions based on power curtailment by modifying the traditional maximum power point tracking algorithm.

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Section: Methods Based On Maximum Power Point Estimationmentioning

confidence: 99%

New Trends in the Control of Grid-Connected Photovoltaic Systems for the Provision of Ancillary Services

2022

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“…Expanding on previous work, focused on identifying ways of providing frequency response with load aggregation [20] and from the generation side [21], this work analyzes the impact load response has on system frequency. Further work includes [22], which proposes the use of controlled domestic heat pumps to provide frequency support, or [23], where a combination of refrigerators and Flywheel Energy Storage Systems is used and includes an estimation of the economic benefit.…”

Section: B Demand Side Participationmentioning

confidence: 99%

Decentralized Demand Side Participation in Primary Frequency Control: Assessing the Impact of Response Rates

Casasola-Aignesberger¹,

Martínez²

2023

IEEE Access

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Increasing renewable energy generation is leading to reduced inertia in electric power systems. This challenges conventional frequency control methods, as frequency deviations become faster and more pronounced. One possible approach to maintaining system frequency within acceptable bounds is using demand-side response complementing current generation-side control strategies. However, evaluating the impact of different control strategies on frequency behavior is needed to compare their performance. This paper presents a set of conventional metrics and proposes a new metric for evaluating frequency behavior in electric power systems, based on a case study in an island power system in San Cristobal, Galapagos. Furthermore, it presents the impact on frequency of different demand-side response strategies that contribute to frequency control and their impact on the used batteries.INDEX TERMS Ancillary services, decentralized control, demand response, primary frequency control, smart loads.• Unintentional tripping of protections.• Over extensive Load shedding.

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Grid-current-sensorless control of grid-forming inverter with LCL filter

Tang

Fan

Yang

et al. 2023

International Journal of Electrical Power & Energy Systems

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Power Ramp-Rate Control via power regulation for storageless grid-connected photovoltaic systems

Cited by 8 publications

References 26 publications

New Trends in the Control of Grid-Connected Photovoltaic Systems for the Provision of Ancillary Services

New Trends in the Control of Grid-Connected Photovoltaic Systems for the Provision of Ancillary Services

Decentralized Demand Side Participation in Primary Frequency Control: Assessing the Impact of Response Rates

Grid-current-sensorless control of grid-forming inverter with LCL filter

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