Simple control strategies of the active filters within a unified power quality conditioner (UPQC)

Ivanov, Sergiu; Ciontu, Marian; Sacerdoțianu, Dumitru; Radu, Alexandru

doi:10.1109/mps.2017.7974465

Cited by 8 publications

(3 citation statements)

References 2 publications

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“…The current harmonics disturb the voltage of system which gradually upsets the performance of system and provides unwanted circumstances like insulation failure, control system failure, electrical and mechanical fluctuations in the alternator, overheating problems and unpredictable protection behavior etc. These above all the mentioned problems are serious for the electrical system, so harmonic mitigation is essential for the consumers and utility purposes [4].…”

Section: Introductionmentioning

confidence: 99%

Power Quality Improvement and Harmonics Compensation Using Hybrid Filter

Mudassar¹

2023

SJET

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The need for electricity is expanding at an even faster rate in these modern times. In order for the electrical devices to function properly and effectively, a constant supply of high-quality power is required. The most common types of power quality reducing factors include noise, interruptions, variations in voltage and frequency, and so on. These factors all contribute to a decrease in the electrical devices' overall efficiency. Total harmonic distortion (THD) was made worse by the presence of non-linear loads. The existence of harmonics is the primary cause of the problems that lead to the breakdown of insulation, excess heating, and a shortened lifespan for various pieces of equipment. In addition to this, if there is a high THD in the electrical system, it may cause the energy meter to give inaccurate readings. An economic hybrid filter can be employed to reduce the losses caused by harmonics distortion, thereby providing a solution to those issues. This paper provides an in-depth look into the application of this filter for harmonic compensation. By performing simulations with the Simulink tool of MATLAB and validating the results using the experimental setup, it has been determined that using a filter can reduce the total harmonic distortion (THD) of the current by 40.09 percentage points, which will result in better power quality and energy conservation. The IEEE Standard 519-1992 was consulted as a reference when making this determination.

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Section: Introductionmentioning

confidence: 99%

Power Quality Improvement and Harmonics Compensation Using Hybrid Filter

Mudassar¹

2023

SJET

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“…Furthermore, the voltage control techniques used for DVR may be categorized as either hysteresis voltage control methods [21][22][23][24][25] or pulse width modulation (PWM) control methods [26,27]. The first category is simple to implement and requires no knowledge of system parameters [3], but has uncontrollable high switching frequency.…”

Section: Introductionmentioning

confidence: 99%

Voltage compensation using sequence component detection technique under sag, swell, and distorted conditions of grid voltages

Al-Gahtani

2021

J. Power Electron.

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The use of certain electrical equipment connected to conventional power systems has raised concerns regarding the quality of the power system. Some equipment has been perceived to be unequipped to sustain the surges, faults, and distortions in traditional distribution systems. Common voltage issues exist, such as imbalance, harmonic distortion, sag, and swell. Such issues are usually contained using a dynamic voltage restorer (DVR). In this study, the determination of voltage references for DVR based on a robust and simple detection method of positive and negative sequence components is analyzed. This method detects the components in real time. With the proposed method, either the reference load voltages can be generated, or the reference DVR voltages can be generated, depending on which voltages are controlled. Moreover, contrary to other methods, the proposed technique avoids the use of phase-locked loop (PLL) and vector transformation. The voltage compensation technique controls the DVR in real time to prevent steady-state and disturbance conditions at the load side. The proposed system is evaluated by simulation and experimentation under several steady-state and transient cases. Finally, the proposed control is compared with common control methods.

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“…The distortions in the current and voltage have an effect on industrial and household appliances. In [11] FLC controller based UPQC is achieving diminution in power quality issues.…”

Section: Introductionmentioning

confidence: 99%

Optimal Operation of Multi-Converter-UPQC for Power Quality Improvement in Distribution

2019

IJITEE

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In this paper the power compensation for power system during faults in distribution line is described. The proposed system is designed by using the series and shunt APF based hysteresis control scheme to compensate harmonic distortion and control the system stability. Moreover, the system can be compensated the current as well as voltage simultaneously by using Unified Power Quality Controller (UPQC). Voltage Source Inverters (VSI) are connected in both the series and shunt. The main feeder is used to injecting power to these inverters using transformer and VSI compensate the imperfection line such as sag, interruption, swell, voltage unbalance. DC link voltage of the system is maintained at series and shunt operation. The proposed system is verified successfully and tested using MATLAB/Simulink.

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Simple control strategies of the active filters within a unified power quality conditioner (UPQC)

Cited by 8 publications

References 2 publications

Power Quality Improvement and Harmonics Compensation Using Hybrid Filter

Power Quality Improvement and Harmonics Compensation Using Hybrid Filter

Voltage compensation using sequence component detection technique under sag, swell, and distorted conditions of grid voltages

Optimal Operation of Multi-Converter-UPQC for Power Quality Improvement in Distribution

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