A Novel Sliding Mode Based UPQC Controller for Power Quality Improvement in Micro-Grids

Heidari, Mohammad; Nafar, Mehdi; Niknam, Taher

doi:10.1007/s42835-021-00886-3

Cited by 10 publications

(2 citation statements)

References 16 publications

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“…Heidari et al 24 have suggested a novel state‐observe‐related controller of sliding‐mode for the unified PQ conditioner inverters to improve the PQ in micro‐grids. A standard sliding mode controller was used in the control system with an enhanced extended state observer to increase its ability to reject disturbances.…”

Section: Recent Research Work: a Brief Reviewmentioning

confidence: 99%

Optimal power quality improvement in distribution system with UPQC using an improved strategy

Palanisamy,

Thangamuthu

2024

Optim Control Appl Methods

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A hybrid technique is proposed to enhance the power quality (PQ) on the distribution sides of the utility grid (UG) by controlling a unified power quality conditioner (UPQC) connected to hybrid sources (photovoltaic [PV] and wind turbine [WT]). The proposed hybrid method integrates the implementation of the pelican optimization algorithm and the Aquila optimizer; hence, it is called the improved aquila optimizer (IAO) technique. The objective of the proposed method is to lessen the total harmonic distortion (THD), voltage instability, and PQ issues during load fluctuation situations. The improved Aquila Optimizer technique optimizes the control parameters of the UPQC to achieve optimal PQ development. The series controller is attached to the grid‐side to enhance grid PQ, while the shunt hybrid active power filter (SAPF) and shunt active power filter (SHAPF) generate the best control pulses based on load and source conditions. The proposed solution addresses power loss, THD, and voltage instability problems during load fluctuation conditions. The series controller reduces voltage sag by 14% and voltage swell by 15%. The THD for the proposed technique is 0.8%. The PQ of the proposed technique is improved, and various characteristics are reduced. The efficiency of the proposed technique is examined by using MATLAB and is compared to existing approaches. The PQ characteristics are significantly improved, and the proposed technique is better than the existing techniques.

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Section: Recent Research Work: a Brief Reviewmentioning

confidence: 99%

Optimal power quality improvement in distribution system with UPQC using an improved strategy

Palanisamy,

Thangamuthu

2024

Optim Control Appl Methods

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“…Using the proposed design, UPQC gained active and reactive power injection capabilities in addition to its well-known benefit. Experiments were carried out in various circumstances to validate the efficacy of the suggested strategy in increasing power quality metrics [19], [20]. In series circuit is controlled by DVR, and the voltage varies in response to load variations, which are assessed using the suggested rational energy transformative optimization algorithm [21].…”

Section: Introductionmentioning

confidence: 99%

Unified power quality control based microgrid for power quality enhancement using various controlling techniques

Madhavan¹,

Nalini

2022

IJEECS

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This research analyses the introduction of unified power quality control (UPQC) to mitigate the power quality problems, which is caused by using power electronics devices. In this article, the challenges in power quality, the suggested UPQC control approaches that are made by the distributed generation of dynamic voltage restorer (DVR) and static synchronous compensator (STATCOM) with the DC-link. The DVR is a series active power filter (APF) compensator and the STATCOM is a shunt APF compensator. In the meanwhile, DVR compensates voltage related issuesas well as STATCOM provides the needed reactive power supply by load and reducing the current issues associated with the unity power factor. The main objectives of the UPQC to mitigate voltage imbalance, harmonics, negative-sequence current and reactive power. To overcome the PQ issues the multifunction power conditioner is implemented. In addition, several proposed control approaches were employed and compared with series and shunt APFs. In MATLAB/Simulink software is used to illuminate the performance of the control strategies. Finally, the simulation will be evaluated and PQ problems in UPQC will be reduced by various techniques such as unit vector template generation technique (UVTGT), power balancing theory (BPT), proportional integral (PI) control technique and hysteresis control technique.

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An enhanced approach for power quality improvement of unified power quality conditioner connected wind energy conversion system

Sultana,

Salma

2024

Optim Control Appl Methods

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This manuscript proposed a hybrid system for enhancing the control strategy of a unified power quality conditioner connected to a wind energy conversion system. The proposed method is combined with honey badger algorithm (HBA) and reptile search algorithm (RSA). Therefore, it is known as the Enhanced HBA (EnHBA) technique. The key aim of the EnHBA technique is to alleviating the PQ issue exhibited in the WECS. The EnHBA approach is utilized in the non‐linear load condition to find the best solutions from the available searching space in light of the goal function and generates the output. During the load variation conditions the EnHBA technique manages the loss of power, total harmonic distortion (THD), and voltage instability issue respectively. In this way, the PQ system performances improved and moreover, the various qualities decreased with the support of the EnHBA method. The EnHBA techniques' performance is validated through the MATLAB platform and the implementation is calculated with the existing techniques. The method EnHBA technique displays better outcomes in all approaches like, particle swarm optimization, whale optimization algorithm and singular spectrum analysis (SSA). The proposed method's voltage sag and swell are lowered to 14% and 15%, respectively. The THD of the En HBA method is 10%, which is lesser than other existing PSO, WOA, and SSA methods.

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A Novel Sliding Mode Based UPQC Controller for Power Quality Improvement in Micro-Grids

Cited by 10 publications

References 16 publications

Optimal power quality improvement in distribution system with UPQC using an improved strategy

Optimal power quality improvement in distribution system with UPQC using an improved strategy

Unified power quality control based microgrid for power quality enhancement using various controlling techniques

An enhanced approach for power quality improvement of unified power quality conditioner connected wind energy conversion system

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