Design of passive filter components for switching band controlled DVR

Sasitharan, S.; Mishra, Mahesh K.

doi:10.1109/tencon.2008.4766427

Cited by 18 publications

(5 citation statements)

References 18 publications

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“…Usually, the high-frequency or carrier frequency switching technique is used in DVRs. Hence, the output voltage is embodied with higher-order harmonics; thus, it is required to attenuate the harmonics, and for that, generally a low-pass LC filter is used [69][70][71][72][73]. As indicated in Figure 12, the filter is connected to the inverter side [72] or the supply side [73].…”

Section: Location Of the Filtermentioning

confidence: 99%

A Review of Control Techniques and Energy Storage for Inverter-Based Dynamic Voltage Restorer in Grid-Integrated Renewable Sources

Prasad

Dhanamjayulu

2022

Mathematical Problems in Engineering

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Power quality (PQ) is a key issue, particularly for technologically advanced process equipment, whose performance mainly depends on the quality of supply. Problems with PQ such as voltage swells/sags, interruptions, and harmonics are defined by any voltage, current, or frequency abnormalities causing damage or failure of the end-user equipment. Outages and interruptions lead to malfunctioning of end-user equipment or sensitive loads, such as diagnostic equipment in healthcare facilities, clinics, educational institutions, and detention centers, while further increasing significant economic losses. Custom power devices (CPDs) are recommended for enhancing power quality, and the best and most economical solution is considered to be the dynamic voltage restorer (DVR). Several methods are suggested to improve the PQ by using the dynamic voltage restorer; among them, most encouraging ways are to use a multilevel inverter (MLI) in the dynamic voltage restorer. This article combines the latest work of the literature, as well as a detailed discussion on PQ issues of the grid-integrated renewable energy sources (RESs), DVR principle with its operating procedures, system components, energy storage-based DVR topologies, DVR control unit, and DVR power converter-based topologies. In addition, synthesis of energy storage, control strategies, and multilevel inverters for DVR. This review benefits those interested in investigating DVR as a relevant and comprehensive reference.

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Section: Location Of the Filtermentioning

confidence: 99%

A Review of Control Techniques and Energy Storage for Inverter-Based Dynamic Voltage Restorer in Grid-Integrated Renewable Sources

Prasad

Dhanamjayulu

2022

Mathematical Problems in Engineering

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“…substituting (12) in (11), the change in capacitor current is obtained as di c = (h − δ)/R f . The time duration for one switching cycle is found by,…”

Section: Basic Three-level Schemementioning

confidence: 99%

“…The rating of the injection transformer and the filter components are selected based on [6,11] respectively. The switching frequencies of the proposed methods are shown in Fig.…”

Section: Simulation Studiesmentioning

confidence: 99%

Reduced switching frequency algorithm for three-level diode clamped inverter based DVR

Student

Mishra

2011

IET Conference on Renewable Power Generation (RPG 2011)

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This paper proposes an improved scheme of hysteresis voltage control for a three-level dynamic voltage restorer (DVR) application. The basic three-level hysteresis controller offers advantages including ease of implementation and good dynamic performance, but the switching frequency is subjected to wide variation. Also, the maximum frequency may exceed tolerable limits, as the width of the voltage band becomes narrower. The improved three-level switching scheme overcomes the above drawback and results in a reduced switching frequency and lower switching losses. The suggested scheme also results in reduced stress levels on the switches. Detailed analysis and simulation study have been carried out using PSCAD software.

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“…One way that a swell presents itself from the temporary voltage intensify on the healthy phases through the course of due to the fact SLG fault swells can also be a result of swapping of a limitless demand or perhaps energizing a limitless capacitor bank [10,11].…”

Section: Introductionmentioning

confidence: 99%

Power quality enhancement in induction motor drives by using custom power device

Manokaran¹

2015

Teh. vjesn.

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Original scientific paper This paper focuses on the advancement of electric power quality tendencies of an induction motor as well as alleviating the consequence on account of the prolonged duration voltage discrepancy and also quite a short time period voltage variance of these kinds of that over voltage, under voltage continuous interruption, impermanent voltage fall together with voltage climb or maybe an entire disappearance of voltage. The proposed alleviating device is a brand new topology of a dynamic voltage restorer (DVR). A DVR is often familiar to alleviating the impact of unusually high voltage variations while making use of a highly effective custom electric power equipment that is to say dynamic voltage restorer. It contains an electric power storage device, filtration systems, voltage source inverters and also injection transformer. There are numerous categories of regulating approaches being employed for mitigation of abnormal voltages. The proposed control approach to DVR will be based upon the 'abc to dqo' conversion methodology employed. The demonstration outcomes can be found in several circumstances of sag, swell and additional harmonic disorder in the supply voltage which exhibits the reimbursement abilities of DVR. The performance of suggested strategy is examined with the aid of computer demonstration through the use of MATLAB/SIMULINK software. Keywords: distribution system; dynamic voltage restorer; power quality; unbalanced and distorted load; voltage sags and swells; voltage source inverter Poboljšanje kvalitete električne energije u pogonima indukcijskih motora uporabom prilagođenog pogonskog uređajaIzvorni znanstveni članak Rad se bavi nastojanjima za poboljšanje kvalitete električne energije indukcijskog motora kao i ublažavanjem posljedica zbog dulje neujednačenosti napona i također kratkog trajanja takvih promjenljivosti napona, stalnih prekida napona, neujednačenog pada i porasta napona ili možda i potpunog nestanka napona. Predloženi uređaj za ublažavanje ovih pojava je sasvim nova topologija dinamičkog obnavljača napona (dynamic voltage restorer (DVR). DVR ublažava djelovanje neuobičajeno velikih promjena napona i koristi visoko učinkovit prilagođen električni uređaj, t.j. dinamički obnavljač napona. Sastoji se od uređaja za akumuliranje električne energije, sustava za filtriranje, pretvarača izvora napona i ispravljača ubrizgavanja. Postoje brojni regulatori za ublažavanje abnormalnih napona. Predloženi pristup DVR-u temeljit će se na primijenjenoj metodologiji konverzije 'abc do dqo'. Primjeri za demonstraciju mogu se naći u nekoliko slučajeva slabljenja, rasta i dodatnog harmonijskog nereda u naponu na kojima se pokazuju mogućnosti DVR-a. Izvršenje predložene strategije ispitano je pomoću demonstracije na računalu uporabom softvera MATLAB/SIMULINK.Ključne riječi: dinamički obnavljač napona; kvaliteta električne energije; neuravnoteženo i izobličeno opterećenje; pad i porast napona; pretvarač izvora napona; sustav raspodjele

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Design of passive filter components for switching band controlled DVR

Cited by 18 publications

References 18 publications

A Review of Control Techniques and Energy Storage for Inverter-Based Dynamic Voltage Restorer in Grid-Integrated Renewable Sources

A Review of Control Techniques and Energy Storage for Inverter-Based Dynamic Voltage Restorer in Grid-Integrated Renewable Sources

Reduced switching frequency algorithm for three-level diode clamped inverter based DVR

Power quality enhancement in induction motor drives by using custom power device

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