Photovoltaic system based transient mitigation and frequency regulation

Zarina, P P; Mishra, Sukumar; Sekhar, P. C.

doi:10.1109/indcon.2012.6420809

Cited by 26 publications

(13 citation statements)

References 20 publications

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“… PV-PPs usually operate by maximizing the power production, meaning that no power reserves are maintained for frequency control [3][4][5][6].  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]. Nevertheless, these studies investigate the control strategy itself without considering the problem from a power system perspective.…”

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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Section: Introductionmentioning

confidence: 99%

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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“…When the power reached maximum value, perturbation is reversed and oscillate around the required point until it reaches to steady-state as shown in Fig. 6 [10,21]. Fig.…”

Section: Maximum Power Point Tracking (Mppt) Modelmentioning

confidence: 96%

“…The boost converter is added to the solar system for raising the output small voltage from the solar cell, so it called a stepup converter [21]. The converter uses an MPPT technique to track the maximum power by controlling the duty cycle, where the obtained voltage from the boost converter is expressed by the following equation [26]:…”

Section: B Boost Converter Modelmentioning

confidence: 99%

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Impact of Energy Storage Devices on the Distribution System Stability with Distributed Generation. (Dept. E.)

Talal¹,

Kaddah²,

Eladl³

2020

Bulletin of the Faculty of Engineering. Mansoura University

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Renewable energy sources have environmental and economic advantages, but it causes many fluctuations and severe problems on the power system. One solution to decrease these problems are designing renewable sources as distributed generations (DGs) on the power distribution system. But it is necessary to add energy storage systems (ESS) to the power system to improve the impact of DGs on the power system stability. In this paper, the photovoltaic system (PV) with energy storage devices such as battery or superconducting magnetic energy storage systems (SMES) is added to the power system and analyzed the stability of the system by using the software program, "MATLAB/Simulink ® ". The transient stability of the power system is studied based on many factors as maximum rotor speed deviation, the drop-in grid voltage, and the drop in DC voltage of the PV. A different abnormal system states are simulated to show the effect of system configuration on its stability. For validation, a

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Non-synchronous fast frequency reserves in renewable energy integrated power systems: A critical review

Karbouj

Rather

Flynn

et al. 2019

International Journal of Electrical Power & Energy Systems

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Photovoltaic system based transient mitigation and frequency regulation

Cited by 26 publications

References 20 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

Impact of Energy Storage Devices on the Distribution System Stability with Distributed Generation. (Dept. E.)

Non-synchronous fast frequency reserves in renewable energy integrated power systems: A critical review

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