Usage of smart inverter Q-V droop functionality for irradiance variation induced voltage fluctuation reduction considering system uncertainty

Hossan, Shakawat; Westfallen, Vincent; Paaso, Esa Aleksi; Avendaño, Manuel; Bahramirad, Shay

doi:10.1109/isgt.2018.8403370

Cited by 6 publications

(5 citation statements)

References 8 publications

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“…A local controller is built into each individual inverter with the responsibility of keeping track of the terminal voltage and reporting any potential changes. It is very likely that grid power has been lost when the measured voltage and frequency are outside of the typical operating range established by IEEE Standard 1547-2018 [51][52][53][54][55][56][57][58][59][60].…”

Section: Artificial Intelligence Model For Controller Action Of the S...mentioning

confidence: 99%

Avant-Garde Solar Plants with Artificial Intelligence and Moonlighting Capabilities as Smart Inverters in a Smart Grid

Rangarajan

Shiva²,

Sudhakar³

et al. 2023

Energies

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Intelligent inverters have the capability to interact with the grid and supply supplemental services. Solar inverters designed for the future will have the ability to self-govern, self-adapt, self-secure, and self-heal themselves. Based on the available capacity, the ancillary service rendered by a solar inverter is referred to as moonlighting. Inverters that communicate with the grid but are autonomous can switch between the grid forming mode and the grid following control mode as well. Self-adaptive grid-interactive inverters can keep their dynamics stable with the assistance of adaptive controllers. Inverters that interact with the grid are also capable of self-adaptation Grid-interactive inverters may be vulnerable to hacking in situations in which they are forced to rely on their own self-security to determine whether malicious setpoints have been entered. To restate, an inverter can be referred to as a “smart inverter” when it is self-tolerant, self-healing, and provides ancillary services. The use of artificial intelligence in solar plants in addition to moon-lighting capabilities further paves the way for its flexibility in an environment containing a smart grid. This perspective paper presents the present as well as a more futuristic outlook of solar plants that utilize artificial intelligence while moonlighting advanced capabilities as smart inverters to form the core of a smart grid. For the first time, this perspective paper presents all the novel ancillary applications of a smart inverter while employing Artificial intelligence on smart inverters. The paper’s emphasis on the Artificial Intelligence associated with PV inverters further makes them smarter in addition to ancillary services.

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Section: Artificial Intelligence Model For Controller Action Of the S...mentioning

confidence: 99%

Avant-Garde Solar Plants with Artificial Intelligence and Moonlighting Capabilities as Smart Inverters in a Smart Grid

Rangarajan

Shiva²,

Sudhakar³

et al. 2023

Energies

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show abstract

“…Furthermore, the revised version of IEEE 1547a (2014) standard allows SI deployment for voltage regulation. In literature several works have been reported on using SI along with PV to mitigate the effect of PV intermittency and pave way for high PV penetration [78][79][80]. Further, the practical experiences of deploying SI-PV smart grid system and performance of PV topologies from different parts of the world such as in Japan [81,82], Taiwan [83], Costa Rica [84], Hawaii [85], California [86], have been reported.…”

Section: Pv Inverter and Smart Inverter Strategiesmentioning

confidence: 99%

A Review of Strategies to Increase PV Penetration Level in Smart Grids

Aleem

Hussain²,

Ustun³

2020

Energies

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Due to environmental concerns, power system generation is shifting from traditional fossil-fuel resources to renewable energy such as wind, solar and geothermal. Some of these technologies are very location specific while others require high upfront costs. Photovoltaic (PV) generation has become the rising star of this pack, thanks to its versatility. It can be implemented with very little upfront costs, e.g., small solar home systems, or large solar power plants can be developed to generate MWs of power. In contrast with wind or tidal generation, PV can be deployed all around the globe, albeit with varying potentials. These merits have made PV the renewable energy technology with highest installed capacity around the globe. However, PV penetration into the grid comes with its drawbacks. The inverter-interfaced nature of the PV systems significantly impacts the power system operation from protection, power flow and stability perspectives. There must be strategies to mitigate these negative impacts so that PV penetration into the grid can continue. This paper gives a thorough overview of such strategies from different research fields: such as communication, artificial intelligence, power electronics and electric vehicle charging coordination. In addition, possible research directions are given for future work.

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“…Despite being new, SIs have received a lot of attention in the literature such as comparing their operating modes [9], developing new ones [10] or tackling changing weather conditions [11]. Most of these studies focus on SIs that are connected to high-voltage networks, such as solar farms.…”

Section: Introductionmentioning

confidence: 99%

Optimal PV-INV Capacity Ratio for Residential Smart Inverters Operating Under Different Control Modes

Ustun¹,

Aoto²,

Hashimoto³

et al. 2020

IEEE Access

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The ratio between the photovoltaic (PV) array capacity and that of the inverter (INV), PV-INV ratio, is an important parameter that effects the sizing and profitability of a PV project. It is important to find the balance between cutting down costs by under-sizing the inverter and maximizing profits by generating more energy. This becomes much more important where smart inverters with voltage control abilities are utilized. Smart Inverters have the ability to actively take part in voltage control and, thus, increase the injected power. This would require a larger capacity than usual, as some reactive power flow needs to be accommodated to limit the voltage rise. Excess capacity can be utilized to implement smart inverter functionalities and inject more energy under conditions where conventional inverters would cap their generation. Furthermore, PV-INV ratio studies in the literature focus on large-scale, grid-connected PV systems. This paper focuses on investigating PV-INV ratio for residential PV systems with smart inverters. These are connected to low-voltage distribution systems where voltage rise issue is more apparent. A new simulation tool that can model smart inverter functionalities is utilized to investigate the impact of PV-INV ratio on overall power generation. Different smart inverter functions are implemented for comparison. Based on simulation results, the overall costs and power generation are documented for different PV-INV ratios. Finally, a cost-benefit analysis is performed to find out which PV-INV ratio yields the maximum profits with minimum costs.

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Usage of smart inverter Q-V droop functionality for irradiance variation induced voltage fluctuation reduction considering system uncertainty

Cited by 6 publications

References 8 publications

Avant-Garde Solar Plants with Artificial Intelligence and Moonlighting Capabilities as Smart Inverters in a Smart Grid

Avant-Garde Solar Plants with Artificial Intelligence and Moonlighting Capabilities as Smart Inverters in a Smart Grid

A Review of Strategies to Increase PV Penetration Level in Smart Grids

Optimal PV-INV Capacity Ratio for Residential Smart Inverters Operating Under Different Control Modes

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