Voltage sag/swell compensation in an interline Dynamic Voltage Restorer

Rani, P. Usha; Sudha, R.; Reddy, S. Rama

doi:10.1109/icetect.2011.5760134

Cited by 11 publications

(4 citation statements)

References 8 publications

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“…Case 3: When pedestrian is detected and the distance is vulnerable In this scenario the automatic brake is applied and the vehicle will stop and wait until the person moves away and once the person crosses, the vehicle proceeds to move forward [11]. Case 4: When pedestrian is detected and the distance is critical In this scenario the automatic braking is applied along with this it pulls out the airbag by using servo motor [19], if any collision happens the pedestrian will fall on the airbag and the airbag open even before the event of the collision, in order to save pedestrians from any severe injury. This action could save pedestrian life [20].…”

Section: Working Principlementioning

confidence: 99%

Safety Attachment for Carriers of Walking Disabled Persons

S.Yuvaraj¹,

B.Babu²,

Yadav³

2023

IJSMEM

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Throughout the manufacturing process of a car, the safety of pedestrians is frequently put in a secondary position to that of the occupants of the vehicle, despite the fact that both are extremely important. The findings of this study will perhaps shed some light on the problem of pedestrian safety when they are on the road. The accomplishment of the objective is made possible by conducting research on the safety system that, in the event of the worst-case scenario, applies warning signals and brakes automatically in order to avoid collisions involving vehicles and pedestrians. In this situation, an image-processing-based safety technology is utilised to detect pedestrians and immediately apply the brakes. At first, the camera that has been mounted in the vehicle makes use of an image processing algorithm in order to monitor the obstacles that are in its route. The automobile will automatically apply the brakes if it determines that a human is approaching at a distance that could be considered hazardous. In the event of an unexpected emergency, such as when pedestrians unexpectedly cross the path of the automobile, the controller will deploy the airbag by employing a servo motor to pull it out from behind the engine cover. Using this strategy, we may ensure the safety of pedestrians by lowering the number of accidents that occur, all without changing the kinds of cars that are driven or driven by. A functional prototype of the suggested improvements is currently available for evaluation.

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Section: Working Principlementioning

confidence: 99%

Safety Attachment for Carriers of Walking Disabled Persons

S.Yuvaraj¹,

B.Babu²,

Yadav³

2023

IJSMEM

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“…It also enables the active power exchange between two or more DVRs. If one of the DVRs mitigates the sag and provides real power from the sharing DC-link, the rest of the DVRs are to supply it to keep its voltage above a specific threshold value [176]. However, some optimized and modified IDVRs have been presented [175,[177][178][179][180][181].…”

Section: Dvr: Modified Configurationsmentioning

confidence: 99%

“…Modified DVR topologies, along with their advantages and disadvantages. Based on data from[175][176][177][178][179][180][181][182][183][186][187][188].…”

mentioning

confidence: 99%

Dynamic Voltage Restorer (DVR): A Comprehensive Review of Topologies, Power Converters, Control Methods, and Modified Configurations

Moghassemi

Padmanaban

2020

Energies

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Power quality is a pressing concern and of the utmost importance for advanced and high-tech equipment in particular, whose performance relies heavily on the supply’s quality. Power quality issues like voltage sags/swells, harmonics, interruptions, etc. are defined as any deviations in current, voltage, or frequency that result in end-use equipment damage or failure. Sensitive loads like medical equipment in hospitals and health clinics, schools, prisons, etc. malfunction for the outages and interruptions, thereby causing substantial economic losses. For enhancing power quality, custom power devices (CPDs) are recommended, among which the Dynamic Voltage Restorer (DVR) is considered as the best and cost-effective solution. DVR is a power electronic-based solution to mitigate and compensate voltage sags. This paper provides a thorough discussion and comprehensive review of DVR topologies based on operations, power converters, control methods, and applications. The review compares the state-of-the-art in works of literature, and comparative study on power quality issues, the DVR principle along with its operation modes, the DVR components, the DVR topologies based on energy storage, the DVR topologies based on single-/three-phase power converters, and the DVR topologies based on control units that have different control processing stages. Furthermore, modified and improved configurations of the DVR, as well as its integration with distributed generations, are described. This work serves as a comprehensive and useful reference for those who have an interest in researching DVRs.

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“…DVR in IDVR system works in a voltage compensation mode or in a power flow controller mode. While one of the DVRs carries out voltage compensation during sag, the other DVRs can replenish energy to the DC-link to maintain its voltage at a specific level [82]. Mitigation of voltage sag simultaneously in both feeders is not a feature of the two line IDVR as shown in figure 8 if active power is injected from DC-link capacitor.…”

Section: Interline Dynamic Voltage Restorer (Idvr)mentioning

confidence: 99%

State of the Art: Dynamic Voltage Restorer for Power Quality Improvement

Pal¹,

Gupta²

2015

ECIJ

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Improved and controlled power quality is one of the essential and fundamental need in any power driven industry for optimum utilization of resources. However critical problems in power quality have been recognized such as sags, swells, harmonic distortions and other interruptions. Out of these sags and swells are predominantly found and have severe impact on the electrical devices or electrical machines and therefore needs to be compensated at an earliest to ensure any mal-operation or failure. To crack these problems custom power devices are used like unified power-quality conditioner (UPQC), distribution-STATCOM (DSTATCOM) and dynamic voltage restorer (DVR). The DVR is a one of the custom power device used for the compensation of voltage sag and swell with an advantage of active/reactive power control. A major volume of literature reported in past several years on different configurations of DVR and different control technique used in it. In context of this a detailed review on DVR has been presented with different possible power circuit topologies and control techniques available to reconcile these power quality issues. This review article will contribute in better selection of control strategy and power circuit for optimum performance of DVR for a particular requirement. Also it presents a very helpful investigation for the researcher in this field.

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Voltage sag/swell compensation in an interline Dynamic Voltage Restorer

Cited by 11 publications

References 8 publications

Safety Attachment for Carriers of Walking Disabled Persons

Safety Attachment for Carriers of Walking Disabled Persons

Dynamic Voltage Restorer (DVR): A Comprehensive Review of Topologies, Power Converters, Control Methods, and Modified Configurations

State of the Art: Dynamic Voltage Restorer for Power Quality Improvement

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