Integrated Coordination of Voltage Regulators with Distributed Cooperative Inverter Control in Systems with High Penetration of DGs

Mahdavi, Shahrzad; Dimitrovski, Aleksandar

doi:10.1109/tpec48276.2020.9042560

Cited by 7 publications

(3 citation statements)

References 16 publications

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“…Authors in Reference 99 represented a generalized bender decomposition (GBD) algorithm for optimal scheduling the voltage regulators and the PVGUs over a time horizon window. In Reference 100, authors introduced coordination between the voltage regulators and the inverter controller to enhance the system voltage regulation with the increased integration of the PVGUs in the LVDNs. While authors in Reference 101 proposed a virtual complex impedance‐based P‐V droop controller for enhancing the active and reactive power sharing, eliminating the impact of line impedance mismatches, and restoring the system voltage after any violations in the operating conditions.…”

Section: Impact Of Excessive Penetration Of Pv Systems In Lvdnsmentioning

confidence: 99%

Impact and assessment of the overvoltage mitigation methods in low‐voltage distribution networks with excessive penetration of PV systems: A review

Hamza

Sedhom

Badran

2021

Int Trans Electr Energ Syst

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This paper presents an overview of the impact of high penetration of photovoltaic (PV) systems in low-voltage distribution networks (LVDNs). High integration of solar PVs in the LVDNs has severe implications on the system parameters, efficiency, and stability. This paper also introduces the methods that have been driven to overcome these effects to preserve the steady-state conditions in the system during excessive penetration of PV generation units. A comparison between the contributions and shortcomings of the most recent researches for overvoltage mitigation strategies has been driven. Also, it includes comparing different overvoltage mitigation methods to handle the impact of the overvoltage under high penetration of PV units in the LVDNs. Besides, it presents a comparison between overvoltage mitigation methods based on their pros and cons.

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Section: Impact Of Excessive Penetration Of Pv Systems In Lvdnsmentioning

confidence: 99%

Impact and assessment of the overvoltage mitigation methods in low‐voltage distribution networks with excessive penetration of PV systems: A review

Hamza

Sedhom

Badran

2021

Int Trans Electr Energ Syst

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“…Most methods for optimal installation of IBRs use only solar, wind or fuel cells, does not consider storage systems, and does not evaluate high penetration of IBRs. The most common challenges found in the literature are: the difficulty in performing the optimal allocation of distributed generation, as it must consider the generation capacity, location and type of generation used; the physical limitations of the system, which must consider the limitations of voltage, current, and generation capacity to prevent the grid from becoming inefficient or inoperative; economic viability, regardless of the method used, it must take into account the costs involved in implementing the IBR; integration with the existing electrical system, the intermittency of solar and wind generation is a challenge due to the intermittency of generation, energy quality, stability and voltage control; coordination with the power grid, which can be a major challenge especially when there are multiple distributed generation sources connected to the system [9] [10] [11] [18] [19] [20] [21] [22].…”

Section: Introductionmentioning

confidence: 99%

Optimal Inverter-Based Resource Installation to Minimize Technical Energy Losses in Distribution Systems

Dantas,

Fernandes,

Neves

et al. 2023

IEEE Access

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This paper proposes an algorithm for the optimal installation of inverter-based resources (IBR) composed of wind energy conversion systems, photovoltaic systems, and battery energy storage systems in distribution systems using genetic algorithm (GA) and the cuckoo search (CS) as optimization techniques. The OpenDSS software is used to calculate the power flow in the distribution system with different penetration levels of IBRs. It is used a standard load shape of the IEEE 123 bus system programmed in OpenDSS and irradiance, temperature, and wind speed curves from Brazil. The proposed algorithm, using a genetic algorithm and cuckoo search, was able to define the quantity and the location of hybrid renewable generation arrangements reducing electrical energy losses. Case studies were carried out for maximum penetration from 20% to 60%, totaling 5 cases, where each simulation was performed for a period of 24 hours. It is simple, fast and efficient, achieving satisfactory results and being able to be applied to larger systems. The proposed method stands out for the possibility of using IBR in conjunction with energy storage, in addition to having a customizable hybrid array and being able to carry out case studies with high penetration while optimally locating and sizing the hybrid array configured accordingly. with the needs of each problem, reducing losses and maintaining the quality of the system's electrical voltage.INDEX TERMS Heuristics, High penetration, Hybrid array, Inverter-based resource.

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“…For basic operation of LTCs and parameter rules of thumb we refer to the text [9, Chapter 9.3], and to papers [1], [10]. One limitation of this approach is the assumed timescale separation between the LTC and inverters, which may not hold when LTCs delays are shortened to handle increased voltage variability [11]. Moreover, the simulations in these papers are not sufficient to guarantee against the possibility of sustained voltage oscillations.…”

Section: Introductionmentioning

confidence: 99%

Parameter Conditions to Prevent Voltage Oscillations Caused by LTC-Inverter Hunting on Power Distribution Grids

Swartz¹,

Celi²,

Pasqualetti³

et al. 2021

Preprint

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As more distributed energy resources (DERs) are connected to the power grid, it becomes increasingly important to ensure safe and effective coordination between legacy voltage regulation devices and inverter-based DERs. In this work, we show how a distribution circuit model, composed of two LTC's and two inverter devices, can create voltage oscillations even with reasonable choices of control parameters. By modeling the four-device circuit as a switched affine hybrid system, we analyze the system's oscillatory behavior, both during normal operation and after a cyber-physical attack. Through the analysis we determine the specific region of the voltage state space where oscillations are possible and derive conditions on the control parameters to guarantee against the oscillations. Finally, we project the derived parameter conditions onto 2D spaces, and describe the application of our problem formulation to grids with many devices.

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Integrated Coordination of Voltage Regulators with Distributed Cooperative Inverter Control in Systems with High Penetration of DGs

Cited by 7 publications

References 16 publications

Impact and assessment of the overvoltage mitigation methods in low‐voltage distribution networks with excessive penetration of PV systems: A review

Impact and assessment of the overvoltage mitigation methods in low‐voltage distribution networks with excessive penetration of PV systems: A review

Optimal Inverter-Based Resource Installation to Minimize Technical Energy Losses in Distribution Systems

Parameter Conditions to Prevent Voltage Oscillations Caused by LTC-Inverter Hunting on Power Distribution Grids

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