Dynamic Voltage Restorer (DVR) – A Review

Abstract

Power quality (PQ) is gaining a great deal of importance as more sensitive loads are introduced into the utility grid. The degradation of product quality, damage of equipment and temporary shutdowns are the general issues associated with PQ problems in industries. Any mal-operation or damage of the industrial sensitive loads results in monetary losses disproportionately higher than the severity of the PQ issues. The evolution of power electronics technology replaced the traditional power quality mitigation methods with the introduction of Custom Power System devices (CUPS). The major power electronic controller based CUPS are DSTATCOM, DVR and UPQC. DVR is a pertinent solution for the economic losses caused by the PQ issues in the industries. Among the CUPS, DVR is the most cost-effective one. In the published literature, only a few papers correspond to the review of DVR technology. In this paper, a systematic review of published literature is conducted and a description is given on the design, standards and challenges in the DVR technology. A detailed survey is conducted on the published

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

“…IEEE 519 [20] Current and voltage harmonic limitation IEC 61000-3-2 [21] Current harmonic limitation (devices with input current ≤ 16 A) IEC/TS 61000-3-4 [22] Current harmonic limitation (devices with input current > 16 A) IEEE 141 [23] Maintenance and preservation of property, reliability, simplicity, voltage regulation, flexibility IEEE 1159 [24] Monitoring and definition of power quality in Alternating Current (AC) power systems, its impact on customer devices IEEE 1250 [25] Voltage disturbances in AC systems, their impact on sensitive devices, harmonic limitation IEEE P1564 [26] Indication and characterization of sags performance IEC 61000-4- 15 [27] Indication and characterization of fluctuations/flickers IEEE P1409 [28] Advancement in custom power devices standards IEEE P1547 [29] Integration of Distributed Generations (DG) with power systems , and Batteries are some examples of storage systems. These are used to compensate for the energy that is needed because of faults and voltage sags.…”

“…Moreover, modifying the DVR topology and the integration of renewable energy resources with the DVR has become more popular. Some general reviews on the DVRs have been provided that lack an in-depth study on modified configurations of DVR and its integration with renewable energy technologies [14][15][16]. A comprehensive review of different DVR topologies, the modified DVR topologies, and also the integration of distributed generations with DVR will serve as an extensive The maintenance and operation costs of DVR are about 5% of its initial cost, but this value is considerably more (about 15%) [3].…”

Voltage Sag Compensation Using Dynamic Voltage Restorer

“…In some cases, voltage sag occurs due to energizing the transformer in a weak power system. The utility feeder design and fault clearing practice influence the voltage sag and interruption performance [2] [3].…”

Combining DVR and UPS Techniques for an Uninterruptable Supply of Ultra-Sensitive Non-Linear Appliances

“…All these devices are very sensitive to voltage dips and sags occurring in distribution networks. Common means against this type of the failures are dynamic voltage restorers (DVRs), which are usually designed and dimensioned to hundreds of milliseconds for ensuring reliable operation (typically 150 ms-180 ms) [8]- [10]. Against interruption and loss of supply voltage the uninterruptible power supplies (UPSs) are used which to unlike the previous ones, are designed for hours of continuous operation using accubattery as an accumulated source of energy [11]- [15].…”

“…Against interruption and loss of supply voltage the uninterruptible power supplies (UPSs) are used which to unlike the previous ones, are designed for hours of continuous operation using accubattery as an accumulated source of energy [11]- [15]. So, each device from [8]- [10] and [11]- [15] provides compensation for different types of failures of supply for ultra-sensitive appliances. So far, there is no equipment, which would comprise requests provided by both DVR and UPS devices.…”