A Review on UPQC for Power Quality Enhancement in Distribution System

Wanjari, R.A.; Savakhande, V.B.; Chewale, Mangesh A.; Sonawane, Pravin R.; Khobragade, Ram

doi:10.1109/icctct.2018.8550918

Cited by 9 publications

(4 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Yahiya et al discussed the power quality enhancement with the aid of various methods, which reveals the enriched performance of UPQC [10]. A complete literature survey on the unified power quality conditioner (UPQC) to enrich the quality of electric power at distribution stages [11]. Nagarajan et al made a detailed survey on various power quality problems and various types of flexible AC transmission system (FACTS) devices with recent technology.…”

Section: Introductionmentioning

confidence: 99%

ANN Based Reduced Switch Multilevel Inverter in UPQC for Power Quality Improvement

Jeevanantham¹,

Srinath²

2022

Intelligent Automation &Amp; Soft Computing

View full text Add to dashboard Cite

A unified power quality conditioner (UPQC) plays a crucial role in the Power quality improvement of a power system. In this paper, a reduced switch multilevel inverter is with artificial neural network, soft computing technique control is proposed for UPQC. This proposed topology is employed for the mitigation of various power quality issues such as voltage sag, voltage swell, power factor, harmonics, and restoration time of voltage compensation. To show the enriched performance of the proposed topology comparative analysis is made with other two topologies of UPQC such as Conventional UPQC and UPQC using cascaded H bridge (CHB) five-level Inverter. All configurations are analysed using Matlab with variable nonlinear loads to analyse the performance during the conditions mentioned above.

show abstract

Section: Introductionmentioning

confidence: 99%

ANN Based Reduced Switch Multilevel Inverter in UPQC for Power Quality Improvement

Jeevanantham¹,

Srinath²

2022

Intelligent Automation &Amp; Soft Computing

View full text Add to dashboard Cite

show abstract

“…According to the different power angle δ, the PAC of UPQC can be divided into active power compensation control (UPQC-P) [11], reactive power compensation control (UPQC-Q) [12], UPQC-S control (S for complex power) [13] and minimum energy control (UPQC-VAmin) [14,15]. A comprehensive review of UPQC is reported in [16]. A detailed comparison of design and operational aspects of UPQC-Multiconverter and UPQC-Distributed Generation in [17].…”

Section: Introductionmentioning

confidence: 99%

Seamless Switching Technology of UPQC Based on Improved Power Angle Control

Shi

Wang

et al. 2021

Glob. J. Energ. Technol. Res. Updat.

View full text Add to dashboard Cite

This paper presents a novel seamless switching technology between different operating conditions of the Unified Power Quality Conditioner (UPQC) with the energy storage system. Frequent start and stop of the series inverter will cause shock and loss under the conventional control method. Moreover, it is a key issue to achieve seamless switching when the UPQC operating condition changes. This paper proposes an improved power angle control (PAC) method to solve these problems. An agile power angle is calculated by this method under stable operating conditions. This feature enables the series inverter to share the load reactive power with the shunt inverter. On the other hand, both the series and shunt inverters are in an easy-to-switch operating state which can help achieve better seamless switching between different operating conditions. Simulation results show the shunt inverter capacity can be reduced up to 47% due to the reactive power sharing by both the inverters which means the reactive power burden of the shunt inverter is great lightened. It is also found that the switching time is about 300μs faster and the maximum voltage fluctuation amplitude is about 90V smaller under improved PAC than the conventional control method.

show abstract

“…The shunt APF compensates for current based disturbances, while the series APF suppresses voltage based PQ problems. Simultaneously, the UPQC mitigates reactive current components of the load and improves the power factors of the system [10] . Therefore, the UPQC is acknowledged as one of the most powerful devices for mitigating PQ problems.…”

mentioning

confidence: 99%

“…A comprehensive review of UPQC control structures are discussed in Refs. [10][11]. Most methods used to regulate UPQC control are based on time domains as they involve easy calculations and fewer memory space requirements [12] .…”

mentioning

confidence: 99%

Control of UPQC based on steady state linear Kalman filter for compensation of power quality problems

Alam

Arya

2020

Chin. J. Electr. Eng.

View full text Add to dashboard Cite

A frequency lock loop (FLL) based steady state linear Kalman filter (SSLKF) for unified power quality conditioner (UPQC) control in three-phase systems is introduced. The SSLKF provides a highly accurate and fast estimation of grid frequency and the fundamental components (FCs) of the input signals. The Kalman filter is designed using an optimized filtering technique and intrinsic adaptive bandwidth architecture, and is easily integrated into a multiple model system. Therefore, the Kalman state estimator is fast and simple. The fundamental positive sequence components (FPSCs) of the grid voltages in a UPQC system are estimated via these SSLKF-FLL based filters. The estimation of reference signals for a UPQC controller is based on these FPSCs. Therefore, both active filters of a UPQC can perform one and more functions towards improving power quality in a distribution network. In addition to the SSLKF-FLL based algorithm, a bat optimization algorithm (based on the echolocation phenomenon of bats) is implemented to estimate the value of the proportional integral (PI) controller gains. The bat algorithm has a tendency to automatically zoom into a region where a promising alternative solution occurs, preventing the solution from becoming trapped in a local minima. The complete three-phase UPQC is simulated in the Matlab/Simulink platform and the hardware is tested under various power quality problems.

show abstract

A Review on UPQC for Power Quality Enhancement in Distribution System

Cited by 9 publications

References 33 publications

ANN Based Reduced Switch Multilevel Inverter in UPQC for Power Quality Improvement

ANN Based Reduced Switch Multilevel Inverter in UPQC for Power Quality Improvement

Seamless Switching Technology of UPQC Based on Improved Power Angle Control

Control of UPQC based on steady state linear Kalman filter for compensation of power quality problems

Contact Info

Product

Resources

About