Modelling and improvement of open-UPQC performance in voltage sag compensation by contribution of shunt units

Amini, MohamadAli; Jalilian, Alireza

doi:10.1016/j.epsr.2020.106506

Cited by 21 publications

(5 citation statements)

References 25 publications

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“…In ref. [16], a hybrid active power filter (APF) was developed to improve PQ. The adaptive ANFIS approach was employed to evaluate the PQ performance of the UPQC scheme.…”

Section: Related Work In the Literaturementioning

confidence: 99%

“…The literature mentioned above primarily focuses on PQ issues in a single microgrid operating in grid-connected mode. However, these techniques have limitations, such as complex design, poor reliability [12], the need for improvement [13,15,16], complex structure [14], inadequate performance due to unstable voltage and current supply [17,18,20], and high cost [19,21]. To address these problems and enhance system performance in the distribution system, integration with Flexible AC Transmission Systems (FACTS) is proposed.…”

Section: Related Work In the Literaturementioning

confidence: 99%

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Power Quality Conditioners-Based Fractional-Order PID Controllers Using Hybrid Jellyfish Search and Particle Swarm Algorithm for Power Quality Enhancement

Aldosary

2024

Fractal Fract

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Power quality (PQ) is a major issue in today’s electrical system that affects both utilities and customers. The proliferation of power electronics devices, smart grid technology, and renewable energy sources (RES) have all contributed to the emergence of PQ concerns in today’s power system. The Unified Power Quality Conditioner (UPQC) is a versatile tool that can be used to fix distribution grid issues caused by irregular voltage, current, or frequency. Several tuning parameters, however, restrict the effectiveness of the Fractional-Order Proportional Integral Derivative (FOPID) control technique, which is proposed to improve UPQC performance. To move beyond these restrictions and find the optimal solution for the FOPID controller problem, a hybrid optimization strategy called the Hybrid Jellyfish Search Optimizer and Particle Swarm Optimizer (HJSPSO) is employed. To meet the load requirement during PQ issue periods, the suggested model incorporates a renewable energy source into the grid system. Whether the load is linear or non-linear, the design maintains PQ problems to a minimum. Furthermore, the FOPID control technique is compared with other controllers. Results show that grid-connected RES systems using the proposed FOPID control approach for UPQC have fewer PQ problems. The presented UPQC with HJSPSO strategy significantly outperformed, with the shortest computing time of 127.474 s and an objective function value of 1.423.

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“…In ref. [16], a hybrid active power filter (APF) was developed to improve PQ. The adaptive ANFIS approach was employed to evaluate the PQ performance of the UPQC scheme.…”

Section: Related Work In the Literaturementioning

confidence: 99%

Section: Related Work In the Literaturementioning

confidence: 99%

Power Quality Conditioners-Based Fractional-Order PID Controllers Using Hybrid Jellyfish Search and Particle Swarm Algorithm for Power Quality Enhancement

Aldosary

2024

Fractal Fract

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“…Power quality disturbances including voltage sag/swell, current harmonics, unbalanced load conditions, and varying solar irradiation were successfully eliminated using the proposed study but as discussed in previous studies another controller is required for the PV system operation and to maintain continuous operation of the distribution system. Ref [90] presents backward/forward sweep load flow control method linked with a UPQC-O to improve the quality of power in a distribution system. However, this study only focused on an IEEE 69-bus system and an Iranian 95-bus system.…”

Section: Open Upqc (Upqc-o)mentioning

confidence: 99%

Unified Power Quality Conditioners Based Different Structural Arrangements: A Comprehensive Review

et al. 2023

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Mitigating power quality issues in distribution systems is of utmost importance to both electricity consumers and suppliers as it improves the distribution system's efficiency, reduces electricity costs, maintains continuous supply, and diminishes the requirement for frequent maintenance. Custom power devices were introduced to eliminate power quality issues like voltage sags, swells, transients, imbalances, and current harmonics arising in distribution systems. Unified power quality conditioner (UPQC) is one such frequently used custom power device that enhances the power quality of distribution systems. Various structural arrangements of UPQCs with improved performance capability were introduced within the last few decades. The main aim of this paper is to review the most frequently explored UPQC models in literature and to observe the impact of these UPQC structural configurations on their performance as well as that of the overall distribution system. Also, this study investigates the properties, applications, and control techniques used by these structural configurations of UPQCs to mitigate power quality issues.

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“…For example, References 1–9 improved the power and speed of voltage sag compensation by changing the control algorithm or unit structure of power electronic mitigation equipment such as DVR and Static Synchronous Compensator (STATCOM). References 10 and 11 mitigated the voltage sag by unified power quality conditioner (UPQC) and open unified power quality conditioner (OUPQC). By improving the internal space vector pulse width modulation (SVPWM) algorithm in the UPQC model, it can detect voltage sag better and has better voltage tracking performance.…”

Section: Introductionmentioning

confidence: 99%

Comprehensive mitigation strategy of voltage sag based on sensitive load clustering

Liu

Hao

et al. 2021

Int Trans Electr Energ Syst

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Summary To reduce the investment cost of voltage sag mitigation equipment and the probability of voltage sag at the installation nodes of sensitive load, a comprehensive voltage sag mitigation strategy based on sensitive load clustering is proposed. The Monte Carlo method is used to get the stochastic estimation model of voltage sag to determine the lines with high fault probability, so as to get the weak links in the power grid, that is, the voltage sag vulnerable area. This paper proposes four sensitive indicators called tolerance magnitude of voltage sag, endurance duration of voltage sag, equipment capacity, and power dependence. The weight of each indicator is determined by the combination weighting method, and the affinity propagation (AP) clustering algorithm is used to classify different sensitive loads. The sensitive loads are mitigated by installing the energy storage equipment and dynamic voltage restorer (DVR), and the energy storage capacity is configured with the goal of minimum life cycle cost under the premise of voltage compensation. The result using MATLAB/Simulink and the laboratory equipment shows that, compared with existing mitigation strategies, the proposed mitigation strategy can not only effectively reduce the investment cost and the probability of voltage sag but also make the voltage distribution more reasonable.

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Modelling and improvement of open-UPQC performance in voltage sag compensation by contribution of shunt units

Cited by 21 publications

References 25 publications

Power Quality Conditioners-Based Fractional-Order PID Controllers Using Hybrid Jellyfish Search and Particle Swarm Algorithm for Power Quality Enhancement

Power Quality Conditioners-Based Fractional-Order PID Controllers Using Hybrid Jellyfish Search and Particle Swarm Algorithm for Power Quality Enhancement

Unified Power Quality Conditioners Based Different Structural Arrangements: A Comprehensive Review

Comprehensive mitigation strategy of voltage sag based on sensitive load clustering

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