Effectiveness of Dynamic Voltage Restorer for Unbalance Voltage Mitigation and Voltage Profile Improvement in Secondary Distribution System

Ogunboyo, Patrick Taiwo; Tiako, Remy; Davidson, Innocent E.

doi:10.1109/cjece.2018.2858841

Cited by 53 publications

(12 citation statements)

References 14 publications

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“…Several mitigation techniques, such as distribution line reconfiguration, phase rearrangement, and phase balancing between particular medium voltage feeders and the power distribution energy converter banks with a radial arrangement system, have been proposed in the past by various researchers to reduce voltage variation and improve the voltage profile in distribution systems. [6], [7]. The consequence of voltage imbalance on the procedure of induction motors is investigated in Refs [8], [9].…”

Section: Introductionmentioning

confidence: 99%

Power Quality Improvement Considering Voltage Sag and Unbalance Using DVR

Matter

Mahmoud

Elsayed

2023

Journal of Al-Azhar University Engineering Sector

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According to recent power quality (PQ) studies, voltage sags and voltage unbalance in medium voltage and low voltage distribution grids are the most common type of power quality problems. This paper presents a solution to two different types of power quality issues; voltage sag and voltage unbalance. In order to study the actual impact of these two PQ issues, a study case based on real nonlinear loads data consists of large induction motors, located at Beshai Company in Sadat city, are investigate, the dynamic voltage restorer (DVR) is proposed to eliminate the voltage unbalance and the voltage sag problems. The dynamic voltage restorer is linked to the PCC to improve the PQ issues that have been identified. Matlab Simulink platform is used to simulate the power network, loads, and the dynamic voltage restorer (DVR). The jellyfish search optimizer (JFS) is utilized to get the gain values of the PI controller for the proposed DVR. The results of Matlab/Simulink advocate the proposed device's effectiveness, robustness, and latency.

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Section: Introductionmentioning

confidence: 99%

Power Quality Improvement Considering Voltage Sag and Unbalance Using DVR

Matter

Mahmoud

Elsayed

2023

Journal of Al-Azhar University Engineering Sector

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“…Hence, regulated or manual feeder switching control is employed with numerous problemsolving algorithms to obtain optimal results. However, it is insufficient for completely solving the voltage imbalance because it fails to balance the system load [11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Three Phase Four Switch Inverter Based DVR for Power Quality Improvement With Optimized CSA Approach

Reddy

Ganapathy

Manikandan³

2022

IEEE Access

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Industries driven by electric power require controlled and improved power quality for the optimal exploitation of resources. However, certain crucial issues greatly influence power quality, causing monetary losses to both the utility and customers. Numerous custom power devices are available to compensate for power quality issues; however, these devices alter the parameters of the transmission and distribution systems. Hence, a dynamic voltage restorer (DVR) is adopted in this study, which mitigates voltage disorders by establishing the desired quality and voltage level demanded by any sensitive load. The DVR adopts a 3ϕ four-switch voltage-source inverter (VSI) that acts as a cost-effective solution with a reduced number of switches. The cuckoo search algorithm (CSA) was utilized in this study as it solves multiple optimization issues with ease of implementation. Because it is robust to variations in the system, it significantly aids in enhancing the efficiency of the DVR by compensating for the variations in voltage and minimizing the total harmonic distortion (THD). The entire work was verified in MATLAB/Simulink to demonstrate the effectiveness of the introduced technique in smoothing the distorted voltage. The proposed approach achieved an efficiency of 92.6%witha simulation THD of 2.8% and hardware THD of 2.95%.INDEX TERMS DVR, CSA, Power quality, voltage swell, injection transformer, voltage sag.

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“…Many research articles [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20] proposed different solutions for mitigation of voltage quality issues in the distribution system. Graph theory-based voltage sag mitigation is carried out in Majumder et al, 1 utilizing DVR in the radial distribution network.…”

Section: Introductionmentioning

confidence: 99%

Enhancing voltage regulation using 5‐level TCHB based DVR in radial secondary distribution feeder system

Rao

Satputaley

Patne

et al. 2022

Circuit Theory & Apps

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The voltage quality issues shows the significant effect on the performance of radial secondary distribution feeder. This paper aims to enhance the voltage regulation of radial secondary distribution feeder system using 5-level TCHB inverter based dynamic voltage restorer. Series voltage drop is the major factor causes poor voltage regulation. A 5-level TCHB inverter based DVR is used to inject the same amount of voltage dropped by series impedance. The DVR injects voltage with proper magnitude, phase and frequency with the proposed single phase PLL based SRF control circuitry. This enhances the voltage regulation by maintaining the load voltage at its rated value. Both the simulation and hardware results shows the enhancement of voltage regulation with mitigation using DVR.dynamic voltage restorer (DVR), modulation index (MI), multi-level inverter (MLI), phase locked loop (PLL), pulse width modulation (PWM), total harmonic distortion (THD), transistor-clamped H-bridge (TCHB), voltage regulation (VR), voltage source converter (VSC)

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Effectiveness of Dynamic Voltage Restorer for Unbalance Voltage Mitigation and Voltage Profile Improvement in Secondary Distribution System

Cited by 53 publications

References 14 publications

Power Quality Improvement Considering Voltage Sag and Unbalance Using DVR

Power Quality Improvement Considering Voltage Sag and Unbalance Using DVR

Three Phase Four Switch Inverter Based DVR for Power Quality Improvement With Optimized CSA Approach

Enhancing voltage regulation using 5‐level TCHB based DVR in radial secondary distribution feeder system

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