Modeling of Electric Arc Furnace &amp;#x00026; control algorithms for voltage flicker mitigation using DSTATCOM

Anuradha, K.; Muni, Bishnu Prasad; Kumar, A.

doi:10.1109/ipemc.2009.5157552

Cited by 22 publications

(7 citation statements)

References 17 publications

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“…Figure 11(a-c) depicts the most popularly use D-STATCOM, DVR and UPQC system configuration which consists of half-bridge inverters [85], [98], [100], [103] in single-phase twowire (1p2w) system to compensate the power quality (PQ) problems by injecting current in case of D-STATCOM, voltage in case of DVR and both in the case of UPQC of the electrical power distribution system. Figure 12 (a-c) and are widely reported in literature [56][57][58][59][60], [70], [104][105][106][107][108][109][110][111][112][113][114][115][116][117][118], [119][120][121][122][123][124][125][126][127][128][129][130], .…”

Section: Single-phase Two Wire (1p2w) Compensating Devicesmentioning

confidence: 93%

“…The most popular form of pulse width modulation (PWM) synthesis is the sinusoidal pulse width modulation (S-PWM) [20], [47], [77], [80][81][82], [107], [111], [112], [117], [125], [126], [130], [203], [205], [207]. In an S-PWM scheme the modulating signal is sinusoidal and carrier signal is a triangular wave.…”

Section: Sinusoidal Pulse Width Modulation (Spwm) Methodsmentioning

confidence: 99%

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Mitigation of Power Quality Problems Using Custom Power Devices: A Review

Prasad

Akella

2017

IJEEI

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Electrical power quality (EPQ) in distribution systems is a critical issue for commercial, industrial and residential applications. The new concept of advanced power electronic based Custom Power Devices (CPDs) mainly distributed static synchronous compensator (D-STATCOM), dynamic voltage restorer (DVR) and unified power quality conditioner (UPQC) have been developed due to lacking the performance of traditional compensating devices to minimize power quality disturbances. This paper presents a comprehensive review on D-STATCOM, DVR and UPQC to solve the electrical power quality problems of the distribution networks. This is intended to present a broad overview of the various possible DSTATCOM, DVR and UPQC configurations for single-phase (two wire) and three-phase (three-wire and four-wire) networks and control strategies for the compensation of various power quality disturbances. Apart from this, comprehensive explanation, comparison, and discussion on D-STATCOM, DVR, and UPQC are presented. This paper is aimed to explore a broad prospective on the status of D-STATCOMs, DVRs, and UPQCs to researchers, engineers and the community dealing with the power quality enhancement. A classified list of some latest research publications on the topic is also appended for a quick reference.

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Section: Single-phase Two Wire (1p2w) Compensating Devicesmentioning

confidence: 93%

Section: Sinusoidal Pulse Width Modulation (Spwm) Methodsmentioning

confidence: 99%

Mitigation of Power Quality Problems Using Custom Power Devices: A Review

Prasad

Akella

2017

IJEEI

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“…APF with CSC control mechanism for medium voltage to eliminate harmonic well stated by Terciyanli [2]. A VSC platform on STATCOM is also advantageous than CSC based platform [33] [1]. Allmeling in [10] discussed a shunt APF that uses a control mechanism to compensate harmonic content in grid.…”

Section: Introductionmentioning

confidence: 99%

PQ improvement of Micro-Grid by Using DG and Power Quality Conditioner with BESS

Mishra¹,

Jena²,

Nayak³

2018

IJET

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DG Grid interfaced system has been focused through this paper. The objective is to improve power quality of the grid, which was polluted by various means. The improvement of power quality of the micro grid includes uses of a specially designed DG, BESS and Power Quality conditioner. The system consists of a two-stage power conversion. Solar PV supplies power for both DC and AC loads. Manufacturer datasheet is used for modeling the PV panel. In order to keep the BUS voltage stable a BESS is joined to DC BUS through power electronic converter, which is used to absorb the excess power whenever production is high and deliver power to the load on low production. The system continues to supply the local loads, incase of grid discontinuity. Thus it eliminates threats of islanding. This paper also focuses on control and stability of DC bus voltage and energy management scheme. The project uses Matlab/Simulink platform for efficient verification. For power quality improvement of Micro Grid it uses 3leg inverter, which is coupled with SPV and MPPT with Battery storage, which is used as compensator for the whole system. For prevention to reduce voltage current and power flow between DG and Grid, it is necessary to have an optimum control. Through the adjustment of power circulation between shunt paired DG ensures current voltage and power on micro grid. +ve, -ve and Zero sequence components of currents and voltage can be adjusted by the suggested methodology in Grid tied DG system. The said PQC have multiple uses. Firstly as a power converter and secondly as a shunt APF for harmonic compensation on voltage, current and power (both active and reactive) for both balanced and unbalanced loads in the Grid tied DG system. It also cares for the neutral conductor. Either individually or in grid connected mode all the above objectives can be achieved. For the entire Grid, it is realized that after compensation three phase four wired un-balance loads looks as balanced linear resistive load for the Grid. All these task significantly replicated on MATLAB/Simulink. After compensation the total harmonic distortion on input voltage and current reduced drastically. IEEE519 in the range of 5% suitably accepts it.

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“…An alternative is the implementation of a wide bandwidth controller in the inverter stage [19]. In [33], two control algorithms are presented for distribution static synchronous compensator (DSTATCOM) to mitigate voltage fluctuation caused by electric arc furnace loads. Representative works on utility voltage detections are [34, 28], where a technique to monitor voltage fluctuations in the power system with a least‐squares‐Kalman optimisation technique for fundamental frequency voltage phasor estimation and an input instantaneous voltage detection algorithm, under ideal utility mains, are presented, respectively.…”

Section: Introductionmentioning

confidence: 99%

Contribution to digital power factor correction controllers in high intensity discharge lamps electronic ballast applications

Díaz

López

Azcondo

et al. 2014

IET Power Electronics

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Utility voltage fluctuations not compensated by the low frequency voltage loop of the power factor correction (PFC) stage cause a perceptible variation in the light emitted by lamps, unpleasant for the human eye and known as flicker effect. A novel extension of the digital control for PFC stages analyzes the input voltage, detects the fluctuations in the range of human flicker sensitivity and modifies the PFC output voltage controller to avoid their propagation to the dc bus.The purpose of the controller is to make the PFC compatible with any second stage lamp driver, assuring the mitigation of the lamp light variation caused by utility disturbances in consistency with the human eye perception. The controller is implemented in a Field Programmable Gate Array (FPGA). A constant lamp luminance is achieved with this digital controller with no dependence of the next ballast stage. alternative family is the Field Programmable Gate Arrays (FPGAs) technology [9], [10]. These devices consist of predesigned elementary cells and interconnections that are fully programmable by the end user.In DC/DC conversion, it is common that digital controllers pay close attention on the voltage regulation with improved dynamic performance under input voltage and load transients [11], [12].Key properties of High Intensity Discharge (HID) lamps include higher energy efficiency, compact size, good colour rendering, whiter light (higher colour temperature), and longer lifetime [13]- [19]. Typical applications range from car headlamps, greenhouse lighting, interior lighting, industrial sector and urban lighting applications. Since the urban lighting consumption represents a non-negligible part of the total energy amount consumed on Earth, improvements of the supply, efficiency and light quality are investigated. Digital control is a key technology to provide higher performance [14]-[16] to the ballast system. In Fig. 1.a, a typical two -stage electronic ballast solution is shown including a power factor correction (PFC) [20] and an inverter. On the other hand, the same system is depicted in Fig. 1.b with a digital controller. Light emitted by HID lamps is very sensitive to voltage supply fluctuations, producing an effect on the human visual perception, known as flicker [21]-[26]. Flicker is a very uncomfortable effect, which would cause a lot of human physiological effects as it is indicated in [24] and [25]; so it is addressed as a safety and health issue at work. These fluctuations can be caused by the connection and disconnection of important loads (high-power motors, PFC bank capacitors, etc…), compressors, resistive welding machines or arc furnaces. Flicker frequency can be perceived by the eye-brain set, when it is within a range of frequency that extends from 0.5 to 25 Hz [23]; and the maximum flicker perception occurs at around 10 Hz [26].In two-stage electronic ballast, where the inverter may operate in open loop, the PFC outer loop and its output bulk capacitor, C, are the elements that attenuate the propagation of the utility volt...

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Modeling of Electric Arc Furnace & control algorithms for voltage flicker mitigation using DSTATCOM

Cited by 22 publications

References 17 publications

Mitigation of Power Quality Problems Using Custom Power Devices: A Review

Mitigation of Power Quality Problems Using Custom Power Devices: A Review

PQ improvement of Micro-Grid by Using DG and Power Quality Conditioner with BESS

Contribution to digital power factor correction controllers in high intensity discharge lamps electronic ballast applications

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