Various Custom Power Devices for Power Quality Improvement: A Review

Singh, Suneet; Letha, Shimi Sudha

doi:10.1109/peeic.2018.8665470

Cited by 17 publications

(15 citation statements)

References 9 publications

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“…Usually, there are losses in the converter switches and the transformer windings in practical DSTATCOM. A small phase angle difference between V PCC and VC is added to the compensator signal for the compensation of these losses [24].Power flow between DSTATCOM and network is associated with the DSTATCOM output voltage, the network voltage, and their phase angle difference (Table 1) [23].…”

Section: -Principle Of Distribution Static Compensator (Dstatcom)mentioning

confidence: 99%

“…As a meta-heuristic algorithm, the TLBO algorithm is based on teaching and learning models that uses a simple mathematical model of knowledge amelioration that students use to learn in the class. The algorithm uses two types of learning; one is via teacher (teacher phase) and another is through interacting with peers (learner phase) [24], [27].…”

Section: -Tlbo Algorithmmentioning

confidence: 99%

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Optimal Allocation and Sizing of DSTATCOM and PV-DG in the Distribution Network Considering the Uncertainty in Generation and Consumption

Ebrahimi,

Moradlou,

Bigdeli

2024

Preprint

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Following the latest technological advances in power distribution networks, optimum operation of power networks has drawn considerable attention. Considering the huge costs of the installation and development of power networks, any solution to increase efficiency, lower loss of power, enhance voltage deviation, and enhance voltage stability is a great opportunity. Distributed generation (DG) and shunt compensators such as DSTATCOM can be employed for such purposes. Optimal allocation and sizing of DSTATCOM and photovoltaic distributed generation (PV-DG) were studied. Teaching-learning-based optimization (TLBO) algorithm was used for solving the proposed optimization problem using the IEEE 33-bus standard test system. Due to the random production nature of renewable DG units and the random nature of the consumption load, the uncertainty of production and consumption was analyzed using stochastic programming methods. In addition, the Monte Carlo method was employed to select the most probable scenario (among three scenarios including load-PV generation certainty, load certainty-PV generation uncertainty, and load-PV generation uncertainty). The results were used in the objective function on the basis of the defined indicators. The simulation results indicated that the voltage stability index increased, voltage deviation decreased, and power loss declined through optimal allocation and sizing of DSTATCOM compensating devices and photovoltaic distributed generation.

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Section: -Principle Of Distribution Static Compensator (Dstatcom)mentioning

confidence: 99%

Section: -Tlbo Algorithmmentioning

confidence: 99%

Optimal Allocation and Sizing of DSTATCOM and PV-DG in the Distribution Network Considering the Uncertainty in Generation and Consumption

Ebrahimi,

Moradlou,

Bigdeli

2024

Preprint

View full text Add to dashboard Cite

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“…Custom Power Devices are an advanced generation of mitigating means of power quality problems, developed after the superior performance shown by the Flexible AC Transmission Systems (FACTSs) at the transmission field, by increasing the stability of the power system, the transfer capacity, and the efficiency of transmission lines. Custom power devices based on leading-edge power electronics technology have already been recognized as the best solution to power quality problems [2].…”

Section: Introductionmentioning

confidence: 99%

A Review on D-STATCOM for Power Quality Enhancement

Alhattab¹,

Alsammak²,

Hasan³

2023

(AREJ)

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Power quality problems in electric systems are one of the important topics that occupy a wide area of interest to researchers and engineers. The increased use of power electronics circuits has led to improve efficiency and performance of the equipment; on the other hand, they withdraw a non-sinusoidal current and increase the harmonics which causes a decrease in the power quality. Also, these electronic devices are sensitive to power quality problems. However, advanced electronics can be employed to mitigate these problems. The Distribution static synchronous compensator (D-STATCOM) is one of the Custom Power Devices (CPDs) used for this purpose. D-STATCOM can be designed with different topologies, algorithms, and techniques of control to mitigate various power quality problems that face the power system. Selecting the D-STATCOM design depends on the power quality problem that needs to be mitigated. This paper presents a literature review of D-STATCOM from its beginnings to the present day.

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“…The operative effect of DSTATCOM is comprehended using suitable current control techniques, switching schemes for VSI, and the appropriate design of filter components. Designing a proper current control technique and reference current extraction are the two essential stages in the DSTATCOM control for PQ improvement [3]. Linear controllers and some computational intelligence (CI)-based regulators are used to excerpting the reference currents.…”

mentioning

confidence: 99%

Control of distribution static compensator with active damped inductor‐capacitor‐inductor filter using dual loop αβ‐frame current controllers for power quality improvement

Arunagiri

Rajpurohit

Jain

2022

IET Energy Syst Integration

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A distribution system is connected with many non-linear loads, and generated harmonies are mitigated by using distribution static compensator (DSTATCOM) which is coupled at the point of common coupling through a voltage source inverter (VSI) and filter circuit. High-frequency switching ripples are generated along with the output of the VSI during pulse width modulation switching. Inductor-capacitor-inductor (LCL) filter is used to suppress the high frequency switching noises. Still, the primary concern about the LCL filter is generation of resonance peak at the resonance frequency. The conventional synchronous reference frame dq current controller with LCL filter has a complex coupling between d and q axis; hence decoupling is very difficult. This research article presents a new technique based on active damped dual loop αβ-frame current controllers to control the DSTATCOM with LCL filter for achieving improved load compensation. The dual loop controller is enhanced by using capacitor current in the inside loop and grid current at the outside loop with proportional resonant (PR) regulator parallel with harmonic compensator (HC). The proposed method effectively dampens the resonance peak under stationary reference frame ðαβÞ: The PR controller offers unlimited gain at the fundamental frequency and HC can offer more gain at the specific harmonic frequencies. Hence, characteristics of the PR and HC controllers used together to achieve minimum steady-state error and the problematic decoupling are ignored. The complete DSTAT-COM model with proposed control scheme is discussed with PR and (PR + HC) controllers separately under balanced, unbalanced source voltage. Stability analysis is carried out through Bode and pole-zero plots to judge the performance of the proposed current controllers. The obtained results, including total harmonic distortion of the source current, are compared with conventional passive damped dq-frame current controller. K E Y W O R D Scurrent controller, distribution static compensator, harmonic compensator and pulse width modulation, power quality | INTRODUCTIONIn a distribution system (DS), the term power quality (PQ) means achieving a better quality of power with a reliable supply and improved quality in the voltage and current waveform. But various non-linear loads and apparatus are connected to the system; hence, harmonics are generated and affect the consumers. Many conflicts such as impulses, voltage sag, swell, notches, and unbalances in the voltage and current are degrading the quality of power. Therefore, to improve the PQ, compensation devices and technologies have been developed. Custom power devices (CPD) are classified as shunt and series connected devices [1]. Among, distribution static compensator (DSTATCOM) is a shunt-connected expedient used to obtainThis is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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Various Custom Power Devices for Power Quality Improvement: A Review

Cited by 17 publications

References 9 publications

Optimal Allocation and Sizing of DSTATCOM and PV-DG in the Distribution Network Considering the Uncertainty in Generation and Consumption

Optimal Allocation and Sizing of DSTATCOM and PV-DG in the Distribution Network Considering the Uncertainty in Generation and Consumption

A Review on D-STATCOM for Power Quality Enhancement

Control of distribution static compensator with active damped inductor‐capacitor‐inductor filter using dual loop αβ‐frame current controllers for power quality improvement

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