Utilization of Unified Power Quality Conditioner for voltage sag/swell mitigation in microgrid

Gayatri, M.T.L.; Parimi, Alivelu M.; Kumar, Abhishek

doi:10.1109/pestse.2016.7516475

Cited by 18 publications

(15 citation statements)

References 9 publications

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“…The voltage sags are also closely related to the low-voltage ride-through (LVRT) or fault ridethrough (FRT) studies in microgrids; hence relevant literature reports strategies that can be used to mitigate voltage sags [44][45][46][47][48], as well as LVRT strategies for microgrids [49][50][51]. Therefore, both voltage sag mitigation strategies and LVRT strategies are discussed here.…”

Section: Managing Voltage Sags/dipsmentioning

confidence: 99%

“…In Q/V droop control strategy, the error between actual and reference voltage is calculated (see Figure 5) and then processed through a droop constant (Kv_droop) to generate the reactive power reference (Qref), and ultimately based on the voltage error, the STATCOM will inject reactive power to the microgrid to compensate the voltage sag [51]. A unified power quality conditioner proposed in [47] also adopted a similar control strategy for mitigating voltage sags in microgrids. Thus, a similar reactive power control strategy could be also adopted for power electronic interfaced ESSs in microgrids [45].…”

Section: Managing Voltage Sags/dipsmentioning

confidence: 99%

“…In this sequence/droop based strategy appropriate proportions of positive and negative sequence active and reactive power are injected to the network to mitigate the voltage sag in the network. As this strategy is developed for a 3-phase voltage source inverter (VSI) based A unified power quality conditioner proposed in [47] also adopted a similar control strategy for mitigating voltage sags in microgrids. Thus, a similar reactive power control strategy could be also adopted for power electronic interfaced ESSs in microgrids [45].…”

Section: Managing Voltage Sags/dipsmentioning

confidence: 99%

See 2 more Smart Citations

Review of Ship Microgrids: System Architectures, Storage Technologies and Power Quality Aspects

Jayasinghe

Meegahapola²,

Fernando³

et al. 2017

Inventions

102

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Ship microgrids have recently received increased attention, mainly due to the extensive use of power electronically interfaced loads and sources. Characteristics of these microgrids are similar to islanded terrestrial microgrids, except the presence of highly dynamic large loads, such as propulsion loads. The presence of such loads and sources with power-electronic converter interfaces lead to severe power quality issues in ship microgrids. Generally, these issues can be classified as voltage variations, frequency variations and waveform distortions which are commonly referred to as harmonic distortions. Amongst the solutions identified, energy storage is considered to be the most promising technology for mitigating voltage and/or frequency deviations. Passive filtering is the commonly used technology for reducing harmonic distortions, which requires bulky capacitors and inductors. Active filtering is emerging as an alternative, which could be realised even within the same interfacing converter of the energy storage system. The aim of this paper is to investigate recent developments in these areas and provide readers with a critical review on power quality issues, energy storage technologies and strategies that could be used to improve the power quality in ship microgrids. Moreover, a brief introduction to ship power system architectures is also presented in the paper.

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Section: Managing Voltage Sags/dipsmentioning

confidence: 99%

Section: Managing Voltage Sags/dipsmentioning

confidence: 99%

Section: Managing Voltage Sags/dipsmentioning

confidence: 99%

See 1 more Smart Citation

Review of Ship Microgrids: System Architectures, Storage Technologies and Power Quality Aspects

Jayasinghe

Meegahapola²,

Fernando³

et al. 2017

Inventions

102

View full text Add to dashboard Cite

show abstract

“…The power factor compensation can also be provided on-board with the electronic circuit with low expenditures. [9][10][11][12].…”

Section: Wind Generator -Model Consideredmentioning

confidence: 99%

Regulation of Frequency and Load Flow Study in a Multi-Area Power System Under Contingencies with the Inclusion of Wind-Generation

Kumar¹,

Deepika²,

Venkateshwarlu³

2018

CVRJST

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A Sudden loss of a generating station and a sudden switching of heavy loads in the system are the major challenges for a power engineer. Coordinated scheduling of power is necessary to maintain the system parameters under control. In this paper a two-area power system is simulated for contingencies and the frequency deviation is controlled. The load flow studies are also conducted to study the behavior of the system. The results show that the variation of the frequency is within the allowable standards while the system is stable during the period.

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“…FACTS devices principally use power electronic passive devices such as inductors and capacitors and active devices such as switches in various configurations to inject active or reactive power as needed to reduce the voltage error from the nominal value. Examples of FACTS devices are Static Synchronous Compensators and the Unified Power Quality Conditioner [26][27][28].…”

Section: Conventional Shipboard Voltage and Frequency Controlmentioning

confidence: 99%

Effect of Load Changes on Hybrid Shipboard Power Systems and Energy Storage as a Potential Solution: A Review

2017

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More electric technologies (METs) play an important role in meeting ever-growing demands for energy efficiency and emission reduction in the maritime transportation sector. As a result, ships with electrical power transmission are becoming popular compared to traditional mechanical power transmission based ships. Hybrid electric propulsion is an intermediate step in this trend where both mechanical and electrical propulsion technologies are combined to get the benefits of both technologies. In this arrangement, not only the propulsion loads but also non-propulsion loads are connected to a common electrical power bus that could lead to serious power quality issues due to disturbances such as large load changes. This paper presents a comprehensive review on energy storage-based solutions that have been proposed to reduce their effects. The important aspects of existing as well as emerging energy storage control techniques and challenges in reducing transient effects in hybrid shipboard power systems with the use of energy storage are discussed in the paper.

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Utilization of Unified Power Quality Conditioner for voltage sag/swell mitigation in microgrid

Cited by 18 publications

References 9 publications

Review of Ship Microgrids: System Architectures, Storage Technologies and Power Quality Aspects

Review of Ship Microgrids: System Architectures, Storage Technologies and Power Quality Aspects

Regulation of Frequency and Load Flow Study in a Multi-Area Power System Under Contingencies with the Inclusion of Wind-Generation

Effect of Load Changes on Hybrid Shipboard Power Systems and Energy Storage as a Potential Solution: A Review

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