Impact of high penetration of solar photovoltaic generation on power system small signal stability

Liu, Haifeng; Jin, Licheng; Le, David; Chowdhury, Ayaz

doi:10.1109/powercon.2010.5666627

Cited by 64 publications

(23 citation statements)

References 13 publications

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“… Unlike conventional synchronous generators, PV units have no rotating parts; as a result, no inertial response can be provided during major power disturbances [2,3,7,8].…”

Section: Introductionmentioning

confidence: 99%

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Fast Frequency Response Capability of Photovoltaic Power Plants: The Necessity of New Grid Requirements and Definitions

2014

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Abstract:In recent years, only a small number of publications have been presented addressing power system stability with the increased use of large-scale photovoltaic (PV) generation around the world. The focus of these publications was on classical stability problems, such as transient and small signal stability, without considering frequency stability. Nevertheless, with increased PV generation, its effects on system frequency response during contingencies can no longer be ignored, especially in the case of weakly interconnected networks or isolated power systems. This paper addresses the impacts of large scale PV generation on the frequency stability of power systems. The positive effects of deloaded PV power plants (PV-PPs) able to support system frequency recovery during the initial seconds after major contingencies are also examined. Because this type of frequency support is not covered by current definitions, a new terminology is proposed that includes the frequency response of inertia-less generation units immediately after major power imbalances. We refer to this type of frequency support as fast frequency response (FFR). Finally, a discussion is also presented regarding the applicability and pertinence of frequency-related grid requirements for PV-PPs in the case of real power systems. The investigation is based on the isolated power system of northern Chile. The obtained results indicate that in the case of major power imbalances, no significant effects arise on the system frequency response until PV penetration levels exceed approximately 20%. From a system security perspective, the problems arise for PV penetration levels of OPEN ACCESSEnergies 2014, 7 6307 approximately 50%, in which case, the frequency response capability in PV-PPs would be justified during certain hours of the year.

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“… Unlike conventional synchronous generators, PV units have no rotating parts; as a result, no inertial response can be provided during major power disturbances [2,3,7,8].…”

Section: Introductionmentioning

confidence: 99%

“…Nevertheless, most works examine transient and small signal stability [8][9][10]14,15], without considering the effects of PV-PP penetration on frequency stability. Only a small number of studies are found in which the inertial response capability of deloaded PV units is directly addressed [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Fast Frequency Response Capability of Photovoltaic Power Plants: The Necessity of New Grid Requirements and Definitions

2014

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“…The impact of high PV penetration on small signal stability of power system is studied in [4], which shows that high PV penetration affects the critical mode of the system. The simulation results in [5] demonstrate that solar PV generation can either have beneficial or detrimental effect on small signal stability depending on its location and penetration level.…”

Section: Introductionmentioning

confidence: 95%

Stability Assessment of Power Systems Integrated with Large-Scale Solar PV Units

Roy

2016

Advances in Solar Photovoltaic Power Plants

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Renewable energy sources are proficient in reducing greenhouse gas emission in the world. Among various renewable energy sources, solar photovoltaic (PV) generation is gaining its popularity day by day. Unlike conventional generating units, PV plants do not have inertias. Therefore, the increasing penetration of PV may impact a system's oscillations negatively as PV units add additional dynamics to power systems. Therefore, it is essential to analyze a system's behavior before replacing conventional generators by large-scale solar PV units. This chapter analyzes the impacts of increasing penetration of PV units on power systems. The effect of control mode of PV generator on the system's stability is investigated. Both static and dynamic stability analysis methods are conducted to find out the critical issues. The simulation results effectively identify the impact of high PV penetration on the stability of the studied system which show that voltage control mode of PV generator can improve the performance of a system. However, high penetration of PV can interact negatively with the system in certain cases.

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“…The power angle stability is mainly affected by power network topology, grid operating mode, PV system capacity and location, and PV system control strategy. The research effort in [13,15,26,27] revealed that the power system could experience both beneficial and detrimental effects on the rotor angle stability with LSPV integration into the grid, and it must be determined by simulation whether it has beneficial or adverse effects. A PV system's insufficient capability of fault ride-through may also lead to the PV system off-grid.…”

Section: Rotor Angle Stabilitymentioning

confidence: 99%

A review on China׳s large-scale PV integration: Progress, challenges and recommendations

Ding

Wang

et al. 2016

Renewable and Sustainable Energy Reviews

148

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Impact of high penetration of solar photovoltaic generation on power system small signal stability

Cited by 64 publications

References 13 publications

Fast Frequency Response Capability of Photovoltaic Power Plants: The Necessity of New Grid Requirements and Definitions

Fast Frequency Response Capability of Photovoltaic Power Plants: The Necessity of New Grid Requirements and Definitions

Stability Assessment of Power Systems Integrated with Large-Scale Solar PV Units

A review on China׳s large-scale PV integration: Progress, challenges and recommendations

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