Voltage impact mitigation by smart inverter control for PV integration at distribution networks

Liu, Yu‐Jen; Huang, Chi-Yang; Chang, Yung‐Ruei; Lee, Yih‐Der

doi:10.1109/icasi.2018.8394565

Cited by 4 publications

(5 citation statements)

References 4 publications

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“…Stable, expandable, low-latency, high-range, and sufficient-data-rate communication networks are required for grid-interactive inverters. Connectivity between IEDs, such as smart inverters, is enhanced by IEC 61850 [71][72][73][74][75]. The information models used by GOOSE, MMS, and SMV can all be mapped to IEC 61850.…”

Section: Importance Of Iec 61850 Standard and Digital Twin Towards Sm...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: Importance Of Iec 61850 Standard and Digital Twin Towards Sm...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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“…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. Further, studies on dynamic behavior of SI under different scenarios of PV penetration is reported in [87,88].…”

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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“…Cost PV = Cost sys1kW × PV cap × PV sysrate (17) Cost SI+Other = Cost sys1kW × SI cap × (100 − PV sysrat ) (18) Cost total = Cost PV + Cost SI+Other (19) Based on [23], the annual maintenance cost can be assumed as 1200 yen/kW. It is required to add the SI replacement cost which happens once in a decade.…”

Section: B Captured Energy Vs Investment Evaluationsmentioning

confidence: 99%

“…There are works focusing on comparing their operation modes and their effectiveness [9], designing new control modes [10], and their integration with droop functionality to mitigate intermittency of solar generation [11]. Other works focus on their performances in different topologies such as in Hawaii [12], California [13], Japan [14], [15], Costa Rica [16] and Taiwan [17]. There are also works that look at coordinating several SIs for maximum system stability as in [18].…”

Section: Introductionmentioning

confidence: 99%

Analysis of Smart Inverter’s Impact on the Distribution Network Operation

Ustun

Aoto

2019

IEEE Access

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More photovoltaics are deployed at distribution networks and these noticeably cause voltage fluctuations in the distribution system. Use of smart inverters (SIs) is investigated as they enhance grid stability with voltage and frequency support. However, these potentially beneficial operating modes of SIs and their impact on the power system operation are not well-known. Conventional simulation packages do not have the tools to run simulations with these inverters. In order to fill this gap and investigate these points, a brand-new simulation platform called Solar Resource Application Platform for Grid Simulation (Sora-Grid) is being developed. In this paper, Sora-Grid's additional capabilities and its unique approach to integrating SIs into the power flow calculations are presented. Some simulation works have been undertaken to show its operation. Furthermore, the results give an insight into understanding the behaviors of SIs and how they impact the distribution grid operation. A typical distribution network with several residential houses is modeled, and the impact of changing operating conditions and active power output on the system voltage is investigated. Finally, a mathematical model is developed to optimize the SI capacity. The optimum point ensures that maximum solar energy is captured, while fair operation is maintained. INDEX TERMS Smart inverters, distributed control, distribution grid dynamics, power system modeling, active distribution networks, optimal sizing of smart inverters.

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Voltage impact mitigation by smart inverter control for PV integration at distribution networks

Cited by 4 publications

References 4 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

Analysis of Smart Inverter’s Impact on the Distribution Network Operation

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