Autonomous control of smart inverters in grid connected and islanded mode

Shuvra, Mahfuz A.; Chowdhury, Badrul

doi:10.1109/isgt.2017.8086040

Cited by 9 publications

(4 citation statements)

References 9 publications

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“…It was also advised to use bidirectional regulators to keep the voltage under control and stop three-phase reverse power flows. The distribution system's performance might be improved by reactive power regulation for the PV inverter, according to the authors [15]. Reactive power regulation reduces the voltage fluctuation in the distribution system brought on by transient solar power.…”

Section: Voltage Rise and Reverse Power Flowmentioning

confidence: 99%

A Comprehensive Review: Mitigating Techniques for Power Variability Due to Integration of Renewable Energy Sources With Grid

Sharma,

Garg,

Sharma

et al. 2023

J. Electron. Electric. Eng.

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Renewable energy sources like solar panels and wind turbines are becoming more important for generating power. The inconsistent and unreliable output of solar panels and wind turbines is due to factors like clouds, weather conditions, and wind speed that cause their energy production to fluctuate. Connecting intermittent sources to the utility grid creates difficulties in different technical areas, such as ensuring a steady and reliable power supply, protecting the system from disruptions, controlling the distribution of generated power, and maintaining a consistent level of power quality. In this situation, adjusting the amount of electricity produced by an intermittent energy source to keep the power grid stable is essential. This issue must be resolved as soon as possible. The extension to these locations diminishes the grid's strength. It leads to a scenario where a solar power plant is integrated into a subpar electric grid. However, integrating solar power into a shoddy AC infrastructure has problems with power quality (PQ) problems, which restricts penetration levels. This review article suggests various FACTS devices and various conventional, adaptive, and AI-based algorithms to reduce PQ issues brought on by a weak grid and increase renewable energy source (RES) penetration levels. This paper discusses the PQ issues that occur when RES like solar power plants (SPP) and wind power plants (WPP) or both as hybrid are connected to the electrical grid. It also explores different ways to reduce the fluctuation in power output from the solar panels. It analyzes the numerous power quality issues that arise with solar penetration and PQ mitigation methods using several FACTS devices and control algorithms, including traditional control, adaptive control, and AI-based control algorithms. For the benefit of engineers and academics working in this field of study, various research publications have been carefully evaluated, organized, and placed on this paper for convenient reference. It also briefly discusses the plan for controlling battery storage system for solve this problem.

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Section: Voltage Rise and Reverse Power Flowmentioning

confidence: 99%

A Comprehensive Review: Mitigating Techniques for Power Variability Due to Integration of Renewable Energy Sources With Grid

Sharma,

Garg,

Sharma

et al. 2023

J. Electron. Electric. Eng.

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“…The droop-based control method is the most widely applied method to control DG units, as distinguished in the literature [3,9,[72][73][74][75][76][77]. The well-established control method is frequency and voltage droop.…”

Section: Droop-based Controlmentioning

confidence: 99%

Microgrids/Nanogrids Implementation, Planning, and Operation

2022

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“…The authors of [8] tested the voltage support to the grid through an automated predetermined active and reactive power support function from a battery energy storage system, beyond the standards It has showed that the proposed strategy has achieved grid stability with power balancing in high penetration PV/wind. The study in [9] proposed the voltage droop based autonomous reactive power control, it provides reactive power support to the grid based on change in grid voltage. X. Zhao et al reviewed the various functions used in the modern smart inverter unit and discussed the reactive power control strategies for the reliable operation of high DER penetrated power system [10].…”

Section: Introductionmentioning

confidence: 99%

Secure High DER Penetration Power Distribution via Autonomously Coordinated Volt/VAR Control

Joseph

Smedley

Mehraeen

2020

IEEE Trans. Power Delivery

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Traditionally voltage control in distribution power system (DPS) is performed through voltage regulating devices (VRDs) including on load tap changers (OLTCs), step voltage regulators (SVRs), and switched capacitor banks (SCBs). The recent IEEE 1547-2018 from March 2018 requires inverter fed distributed energy resources (DERs) to contribute reactive power to support the grid voltage. To accommodate VAR from DERs, well-organized control algorithm is required to use in this mode to avoid grid oscillations and unintended switching operations of VRDs. This paper presents two voltage control strategies (i) static voltage control considering voltage-reactive power mode (IEEE 1547-2018), (ii) dynamic and extensive voltage control with maximum utilization of DER capacity and system stability. Further, effective time-graded control is implemented between VRDs and DER units to reduce the simultaneous and negative operation. The proposed voltage control strategies are tested in a realistic 140-bus southern California distribution power system through extensive time-domain simulation studies. The results show that voltage quality in a distribution system is effectively achieved through the proposed voltage control strategies with a significantly reduction in the number of switching operations of VRDs. In addition, proposed voltage control strategies increase reliability and security of the DPS during unexpected failures. Index Terms-distribution system voltage control, voltage regulating devices, distributed energy resources, reactive power control.

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Autonomous control of smart inverters in grid connected and islanded mode

Cited by 9 publications

References 9 publications

A Comprehensive Review: Mitigating Techniques for Power Variability Due to Integration of Renewable Energy Sources With Grid

A Comprehensive Review: Mitigating Techniques for Power Variability Due to Integration of Renewable Energy Sources With Grid

Microgrids/Nanogrids Implementation, Planning, and Operation

Secure High DER Penetration Power Distribution via Autonomously Coordinated Volt/VAR Control

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