Load Compensation by DSTATCOM with LCL-Filter by Comparing Different Resonance Damping Methods

Kantar, Emre; Tedeschi, Elisabetta

doi:10.1109/ever48776.2020.9243010

Cited by 3 publications

(2 citation statements)

References 32 publications

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“…The LCL filter design was introduced for high ripple attenuation by integrating two resonance damping technologies, Active Damping and Passive Damping. Both methods have been shown to effectively address the resonance phenomenon caused by the LCL filter while maintaining the connecting point voltages, as well as the THD at less than 3% for nonlinear and unbalanced loads [33].…”

Section: Literature Reviewmentioning

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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Section: Literature Reviewmentioning

confidence: 99%

A Review on D-STATCOM for Power Quality Enhancement

Alhattab¹,

Alsammak²,

Hasan³

2023

(AREJ)

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“…Different types of resonant damping techniques for third‐order LCL filters enabled with DSTATCOM are discussed in ref. [23]. However, load compensation with a synchronised current control technique is not explained.…”

Section: Introductionmentioning

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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