Single-phase Power Quality Conditioners with series-parallel filtering capabilities

Silva, Sérgio Augusto Oliveira da; Barriviera, Rodrigo; Modesto, Rodrigo Augusto; Kaster, Mauricio dos Santos; Goedtel, Alessandro

doi:10.1109/isie.2011.5984202

Cited by 11 publications

(11 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Uninterrupted power supplies are widely used to supply critical loads and provide reliable and high quality energy to the load [15], [18], [19], [20]. Static UPS systems are the most commonly used UPS systems.…”

Section: Introductionmentioning

confidence: 99%

Transformerless Single-Phase Universal Active Filter With UPS Features and Reduced Number of Electronic Power Switches

Santos

Fernandes

Silva

et al. 2016

IEEE Trans. Power Electron.

View full text Add to dashboard Cite

This paper presents an universal active power filter for harmonic and reactive power compensation with UPS (Uninterrupted Power Supplies) features. The configurations does not use transformer in the series part. Transformerless modern UPS systems have been rapidly replacing the old technology due to their performance and size attributes. Reducing the numbers of passive elements and/or switches in active power filters and UPS topologies not only reduces the cost of the whole system but also provides some advantages, such as great compactness, smaller weight, and higher reliability. However, the cost reduction requires the use of more complex control strategies. The model of the proposed system is derived and it is observed that the system can be reconfigurable to operate with four or three-leg depending on the issue. A complete control system, including the PWM (Pulse-Width Modulation) techniques, is developed and a comparison between the proposed filter and the standard one is done, as well. Simulated and experimental results validate the theoretical considerations.Keywords -universal active power filter, single-phase structure, uninterrupted power supplies and P W M techniques. 0885-8993 (c)

show abstract

Section: Introductionmentioning

confidence: 99%

Transformerless Single-Phase Universal Active Filter With UPS Features and Reduced Number of Electronic Power Switches

Santos

Fernandes

Silva

et al. 2016

IEEE Trans. Power Electron.

View full text Add to dashboard Cite

show abstract

“…Among the these control methods, the most important and common control methods are p-q and SRF theories and so far some research have been done to modify these two control theory [19][20][21][22]. However, these two strategies based on balanced three phase systems can be used for single phase systems [23,24]. In Some research, these two control methods combined for better performance of UPQC [25,26].…”

Section: Introductionmentioning

confidence: 99%

Improving the performance of UPQC under unbalanced and distortional load conditions: A new control method

Ghanizadeh

Ebadian²

2015

JAIDM

View full text Add to dashboard Cite

This paper presents a new control method for a three-phase four-wire Unified Power Quality Conditioner (UPQC) to deal with the problems of power quality under distortional and unbalanced load conditions. The proposed control approach is the combination of instantaneous power theory and Synchronous Reference Frame (SRF) theory which is optimized by using a self-tuning filter (STF) and without using load or filter currents measurement. In this approach, load and source voltages are used to generate the reference voltages of series active power filter (APF) and source currents are used to generate the reference currents of shunt APF. Therefore, the number of current measurements is reduced and system performance is improved. The performance of proposed control system is tested for cases of power factor correction, reducing source neutral current, load balancing and current and voltage harmonics in a three-phase four-wire system for distortional and unbalanced loads. Results obtained through MATLAB/SIMULINK software show the effectiveness of proposed control technique in comparison to the conventional p-q method.

show abstract

“…A typical Total Harmonic Distortion (THD) of the input current in such power supplies is greater than 100%, depending on the value of the filtering capacitance. Although a single computer may cause very little distortion, however in a buildings with more than 500 or 1000 computers, the distortion can be sever causes voltage distortion at the feeder and this may cause problems to other loads including linear loads [1][2]. Some of these problem many include [3,10]  Heating of induction motors.…”

Section: Introductionmentioning

confidence: 99%

Harmonic correction in power supplies feeding non-linear loads

Dimitriadis

Darwish

2014

2014 49th International Universities Power Engineering Conference (UPEC)

View full text Add to dashboard Cite

-This paper focuses on the design of an electronic circuit which can be used in conjunction with the power supplies used at the input of non-linear loads (computers, TV sets, etc.) in order to filter out the input current harmonics in such loads. The electronic circuit will fill the gaps of the distorted current waveform so that it becomes sinusoidal and also in phase with the mains supply. In this paper different configurations of the proposed electronic circuit are covered (depending on the location with respect to the non-linear load). An optimization algorithm is carried out in order to find the best location, minimum device rating for different type of loads. The proposed circuit monitors the input current, output voltage and power rating of the power supply. The circuit will then decide whether to filter the input current harmonics or the output voltage harmonics. The circuit will also optimize the best switching frequency for the required load so that the power supply operates at the maximum possible efficiency.Index Terms -Power electronics, the event of Current distortion in AC -CD power supply systems, Harmonic analysis and Harmonic Distortion, suggested methods for current correction.

show abstract

Single-phase Power Quality Conditioners with series-parallel filtering capabilities

Cited by 11 publications

References 19 publications

Transformerless Single-Phase Universal Active Filter With UPS Features and Reduced Number of Electronic Power Switches

Transformerless Single-Phase Universal Active Filter With UPS Features and Reduced Number of Electronic Power Switches

Improving the performance of UPQC under unbalanced and distortional load conditions: A new control method

Harmonic correction in power supplies feeding non-linear loads

Contact Info

Product

Resources

About