Robust Virtual Inertia Control of an Islanded Microgrid Considering High Penetration of Renewable Energy

Kerdphol, Thongchart; Rahman, Fathin Saifur; Mitani, Yasunori; Watanabe, Masayuki; Küfeoğlu, Sinan

doi:10.1109/access.2017.2773486

Cited by 204 publications

(184 citation statements)

References 25 publications

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“…During the deviation of frequency, the proposed virtual inertial control will deliver the desired power to the i-th area, as follows [12][13][14]27]:…”

Section: Proposed Model Of Multi-area Power System With Virtual Inertmentioning

confidence: 99%

“…Recently, considerable research has been proposed regarding virtual inertia control designs [5][6][7][8][9][10][11][12][13][14]. Reference [8] compared the dynamic characteristics of VSG and droop control methods to imitate inertia in the power system.…”

Section: Introductionmentioning

confidence: 99%

“…Reference [12] proposed model predictive control technique-based virtual inertia control to improve the stability performances of microgrids. Almost 100% of grid-connected renewable energy systems [13] have proposed the robust virtual inertia control as a means to support the frequency stability of microgrids. Reference [14] presents the robust tuning methods to select optimum parameters of virtual inertia control for the power system.…”

Section: Introductionmentioning

confidence: 99%

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Virtual Inertia Control Application to Enhance Frequency Stability of Interconnected Power Systems with High Renewable Energy Penetration

2018

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Due to a rapid increase in the utilization of power converter-based renewable energy sources (RESs), the overall system inertia in an interconnected power system might be significantly reduced, increasing the vulnerability of the interconnected power system to the system instability. To overcome problems caused by the significant reduction in system inertia, this paper proposes a new application of virtual inertia control to improve frequency stability of the interconnected power system due to high penetration level of RESs. The derivative control technique is introduced for higher-level applications of virtual inertia emulation. Thus, the proposed virtual inertia control loop has a second-order characteristic, which provides a simultaneous enabling of damping and inertia emulations into the interconnected power system, enhancing frequency stability and resiliency. System modeling and simulation results are carried out using MATLAB/Simulink ® (R2016b, MathWorks, Natick, MA, USA). Trajectory sensitivities are also performed to analyze the dynamic effects of virtual inertia control's parameters on the system stability. The effectiveness of the virtual inertia control concept on stability improvement is verified through a multi-area test system with high RESs penetration level for different contingencies.

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“…During the deviation of frequency, the proposed virtual inertial control will deliver the desired power to the i-th area, as follows [12][13][14]27]:…”

Section: Proposed Model Of Multi-area Power System With Virtual Inertmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Virtual Inertia Control Application to Enhance Frequency Stability of Interconnected Power Systems with High Renewable Energy Penetration

2018

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“…There are several studies have dealt this problem from the control side such as conventional controllers with different algorithms and optimization techniques [10,11], intelligent control, (i.e. Fuzzy Logic Control (FLC)) [12,13], and robust control [14,15]. X. Tang et al [16] proposed a novel technique of frequency control, which is V/f droop control (VFDC) and P/Q droop control (PQDC) combined for islanded MG based on different energy storage devices.…”

Section: Introductionmentioning

confidence: 99%

Microgrid dynamic security considering high penetration of renewable energy

Magdy

Mohamed

Shabib

et al. 2018

Prot Control Mod Power Syst

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This paper presents a coordination strategy of Load Frequency Control (LFC) and digital frequency protection for an islanded microgrid (MG) considering high penetration of Renewable Energy Sources (RESs). In such MGs, the reduction in system inertia due to integration of large amount of RESs causes undesirable influence on MG frequency stability, leading to weakening of the MG. Furthermore, sudden load events, and short circuits caused large frequency fluctuations, which threaten the system security and could lead to complete blackouts as well as damages to the system equipment. Therefore, maintaining the dynamic security in MGs is one of the important challenges, which considered in this paper using a specific design and various data conversion stages of a digital over/under frequency relay (OUFR). The proposed relay will cover both under and over frequency conditions in coordination with LFC operation to protect the MG against high frequency variations. To prove the response of the proposed coordination strategy, a small MG was investigated for the simulation. The proposed coordination method has been tested considering load change, high integration of RESs. Moreover, the sensitivity analysis of the presented technique was examined by varying the penetration level of RESs and reducing the system inertia. The results reveal the effectiveness of the proposed coordination to maintain the power system frequency stability and security. In addition, the superiority of the OUFR has been approved in terms of accuracy and speed response during high disturbances.

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“…Alternatively, the converter control may be well designed so that power converters can provide the stable active power support even when large time-delays are present. Considering the uncertainty feature of time-delays, robust controllers may be applied to ensure stable operations of individual power converters [202]. The design of robust controllers for the active power support can be a future research direction.…”

Section: Converter-level Instability Issues Due To Grid Supportmentioning

confidence: 99%

Power quality and stability improvement of more-electronics power systems

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Robust Virtual Inertia Control of an Islanded Microgrid Considering High Penetration of Renewable Energy

Cited by 204 publications

References 25 publications

Virtual Inertia Control Application to Enhance Frequency Stability of Interconnected Power Systems with High Renewable Energy Penetration

Virtual Inertia Control Application to Enhance Frequency Stability of Interconnected Power Systems with High Renewable Energy Penetration

Microgrid dynamic security considering high penetration of renewable energy

Power quality and stability improvement of more-electronics power systems

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