Performance of unified power quality conditioner (UPQC) based on fuzzy controller for attenuating of voltage and current harmonics

Almelian, Mohamad Milood; Mohd, Izzeldin I.; Mohamed, Izzeldin Ibrahim; Sheikh, Usman Ullah

doi:10.1088/1757-899x/342/1/012084

Cited by 13 publications

(13 citation statements)

References 7 publications

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“…However, the proposed UPQC is based on a simpler fuzzy control. Table 6 gives a comparative study between the literature's P-Q UPQC [19], the literature's fuzzy controlled UPQC [20,21], and the proposed fuzzy UPQC in this work.…”

Section: Compared To the Conventional Upqc Control Methodsmentioning

confidence: 99%

“…The proposed method is a simple approach for effective current harmonics compensation and voltage sags and swells compensation. In order to compare the proposed approach with the conventional P-Q method [19] and the literature's fuzzy controlled UPQC [20,21], each method is simulated on the system under study at the fifth hour and sixth hour.…”

Section: Compared To the Conventional Upqc Control Methodsmentioning

confidence: 99%

“…In most research papers, P-Q theory is used for reference control generation [19]. Some trials in the literature, as in [20,21], used fuzzy logic control only in the UPQC shunt part. In this paper, a new simple fuzzy controlled UPQC using a completely fuzzy logic control system in both parts of the UPQC is introduced.…”

Section: Introductionmentioning

confidence: 99%

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Power quality improvement of smart microgrids using EMS-based fuzzy controlled UPQC

Hossam-Eldin¹,

Mansour²,

Elgamal³

et al. 2019

Turk J Elec Eng & Comp Sci

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The prevalent power quality problems in smart microgrids and power distribution systems are voltage sag, voltage swell, and harmonic distortion. The achievement of pure sinusoidal waveform with proper magnitude and phase is currently a great research and development concern. The aim of this paper is to evaluate and mitigate the smart microgrid harmonics, voltage sag, and voltage swell throughout a 24-h cycle, taking into consideration the variation in solar power generation due to changes in irradiation received by photovoltaic cells, the variation in wind power generation due to changes in wind speed, and the variation of linear and nonlinear load profiles during the day’s cycle. The mitigation of the power quality issues manifested in current harmonics, voltage sag, and voltage swell is achieved through the implementation of a new fully fuzzy controlled unified power quality conditioner (UPQC). It is controlled by an energy management system (EMS). This paper introduces a new control system for the UPQC using full fuzzy logic control. Moreover, fuzzy control is used in current control instead of proportional integral controllers so that it has acceptable performance over a wide range of operating points. The novel approach of an EMS-connected UPQC activates the UPQC at the required time only into the grid. This approach has many benefits by increasing the UPQC lifetime. The effect of the proposed system on the aforementioned issues has been validated through simulation by MATLAB/Simulink. The results are compared with those obtained by conventional methods. The results verify the superior performance of the proposed UPQC to mitigate the problems of current total harmonic distortions, voltage sag, and voltage swell under different operating conditions during the monitoring period.

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Section: Compared To the Conventional Upqc Control Methodsmentioning

confidence: 99%

Section: Compared To the Conventional Upqc Control Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Power quality improvement of smart microgrids using EMS-based fuzzy controlled UPQC

Hossam-Eldin¹,

Mansour²,

Elgamal³

et al. 2019

Turk J Elec Eng & Comp Sci

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“…The widespread use of power electronic-based equipment and inductive/capacitive loads have brought power quality problems in distribution systems. The most common power quality problems today are low PF and harmonic distortion [1,2]. The low PF and Harmonic currents in the distribution system can cause heating in the electrical equipment, vibration/noise in machines, and malfunction of the sensitive equipment [3].…”

Section: Introductionmentioning

confidence: 99%

Enhancing the performance of cascaded three-level VSC STATCOM by ANN controller with SVPWM integegration

Almelian¹,

Mohd²,

Ahmad³

et al. 2019

IJECE

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This article presents a cascaded three-level voltage source converter (VSC) based STATCOM employing an artificial neuron network (ANN) controller with a new simple circuit of space vector pulse width modulation (SVPWM) technique. The main aim of utilizing ANN controller and SVPWM technique is to minimize response time (RT) of STATCOM and improve its performance regard to PF amplitude, and total harmonic distortion (THD) of VSC output current during the period of lagging/leading PF loads (inductive/capacitive loads). The performance of STATCOM is tested using MATLAB/SIMULINK in IEEE 3-bus system. The simulation results clearly proved that the STATCOM with intelligent controller is more efficient compared to a conventional controller (PI controller), where ANN enables the voltage and current to be in the same phase rapidly (during 1.5 cycles) with THD less than 5%.

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“…Several control strategies have been developed for the determination of the reactive and harmonic load current components. Such strategies include the p-q theory and the SRF which have performed equally although their differences are evident when working under unbalanced and distorted AC voltages [9][10][11][12]. The self-tuning filters (STF) classical PQ theory served as the basis in this paper for the generation of the shunt HAPF control reference current under distorted voltage conditions.…”

Section: Introductionmentioning

confidence: 99%

Comparisons of PI and ANN controllers for shunt HPF based on STF-PQ Algorithm under distorted grid voltage

Mohamed¹,

Ibrahim²,

Ahmad³

et al. 2019

IJPEDS

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<span>This paper proposes a shunt hybrid power filter (HPF) for harmonic currents and reactive power compensation under a distorted voltage and in a polluted environment. For this purpose, the reference current of the shunt HPF is computed based on the instantaneous reactive power (p-q) theory with self-tuning filter (STF). In order to adjust the dc voltage as a reference value, PI and ANN controllers have been utilized. Moreover, the system has been implemented and simulated in a MATLAB-SIMULINK platform, and selected results are presented. Therefore, the results verified the good dynamic performance, transient stability and strong robustness of the ANN controller. Furthermore, the shunt HAPF with ANN controller has been found to be in agreement with the IEEE 519-1992 standard recommendations on harmonic levels.</span>

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Performance of unified power quality conditioner (UPQC) based on fuzzy controller for attenuating of voltage and current harmonics

Cited by 13 publications

References 7 publications

Power quality improvement of smart microgrids using EMS-based fuzzy controlled UPQC

Power quality improvement of smart microgrids using EMS-based fuzzy controlled UPQC

Enhancing the performance of cascaded three-level VSC STATCOM by ANN controller with SVPWM integegration

Comparisons of PI and ANN controllers for shunt HPF based on STF-PQ Algorithm under distorted grid voltage

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