Comparative Power Quality analysis of Conventional and Modified DSTATCOM Topology

Kumar, Pradeep; Sikkim, Ravangala India Nit

doi:10.15676/ijeei.2017.9.4.11

Cited by 2 publications

(2 citation statements)

References 10 publications

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“…25 Most of the industrial loads require stable voltages and high quality power for their processes. A VSC approximately generates a pure sinusoidal AC waveform of preferred magnitude and phase for these industrial loads, 31 which is why there is always a need of better control design for VSC to produce high quality voltage at their output. 32 There are many control strategies such as direct quadrature (dq), 33 state feedback, 34 instantaneous reactive power (IRP) theory, 35 self-tuning, 36 phase shift control, 37 model reference adaptive, 38 vector template method, 39 current control decoupled pq theory, 40 synchronous reference frame theory (SRF), 41 regulated voltage at PCC and dc link with proportional-integral (PI) controller, 42 instantaneous symmetrical components, 43 PI and P + resonant controller 5 for VSC of DSTATCOM.…”

Section: Introductionmentioning

confidence: 99%

Power quality improvement in distribution system using distribution static compensator with super twisting sliding mode control

Ullah

Hanif

2021

Int Trans Electr Energ Syst

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Nowadays, power quality (PQ) issues are gaining considerable attention to both electrical utilities and end-users as they are causing significant financial losses to industrial customers. Among PQ issues, voltage sag and swell are the most important and frequently occurring problems for sensitive load. Voltage sag/swell can be mitigated using a distribution static compensator (DSTATCOM), which is fast, effective, and flexible custom power device. Its performance mostly depends upon the designed control scheme for the switching of voltage source converter (VSC). In this research work, a fused control scheme based on second-order super twisting algorithm (STA) and sliding mode control (SMC) for VSC of DSTATCOM is developed, that can effectively eliminate the effects of voltage sag/swell as well as compensate active and reactive power in distribution system. STA along with standard SMC is used to eliminate the chattering effect which is the drawback of SMC alone, while keeping its other properties such as robustness, faster response time, and insensitive to load variation. The proposed control scheme for DSTATCOM is simulated on SimPower system toolbox of MATLAB/Simulink. Both linear as well as nonlinear loads have been considered for the purpose of static and dynamic analysis. Simulation results show that the super twisting sliding mode control (STSMC) for DSTATCOM can effectively detect and correct voltage sag/swell and compensate active and reactive power within 2.5 milliseconds as per semiconductor processing equipment voltage sag immunity standard for sensitive load (SEMI F-47 Standard). Total harmonic distortions (THD) measured in all simulated cases is found to be less than 5%. The frequency response analysis shows good stability properties of developed system.

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Section: Introductionmentioning

confidence: 99%

Power quality improvement in distribution system using distribution static compensator with super twisting sliding mode control

Ullah

Hanif

2021

Int Trans Electr Energ Syst

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“…The basic of STATCOM is to regulate flow of power and recover transient stability of power system. A vast investigation of different DSTATCOM topologies has been discussed in [11][12][13][14][15]. The performance of a DSTATCOM in power quality alleviation is definitely based on rapidness and perfectness of its control approaches.…”

Section: Introductionmentioning

confidence: 99%

Performances of Six-leg DSTATCOM Topology underVarious SRF Algorithms

Kumar¹,

Eeed²

2020

IJIE

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Six-leg DSTATCOM can be employed for improving the superiority of power in a distribution system. DSTATCOM is the most valuable current harmonic reduction device because of its excellent compliance in active situations. The DSTATCOM has a shunt voltage source inverter (VSI) attached to the common coupling point of power system via the interfacing inductor. In its control methodologies, the various SRF methods such as Conventional SRF, DCC based SRF and ICC based SRF have been adopted due to its easy execution aspects. These methodologies create balanced and sinusoidal supply current. Improving the power factor near unity on common coupling point and mitigate harmonics in the supply current will be the key results of this work. A 3phase 4-wire power system with rectified RC/RL load has been taken for the detailed simulation study. The performances of DSTATCOM topology have been compared under conventional SRF, DCC based SRF and ICC based SRF control strategies in terms of power quality improvement.

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Comparative Power Quality analysis of Conventional and Modified DSTATCOM Topology

Cited by 2 publications

References 10 publications

Power quality improvement in distribution system using distribution static compensator with super twisting sliding mode control

Power quality improvement in distribution system using distribution static compensator with super twisting sliding mode control

Performances of Six-leg DSTATCOM Topology underVarious SRF Algorithms

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