Dynamic Voltage Restorer For Voltage Sag Compensation

Ramasamy, Agileswari K.; Iyer, R.K.; Ramachandaramuthy, V.K.; Mukerjee, R.N.

doi:10.1109/peds.2005.1619886

Cited by 29 publications

(3 citation statements)

References 6 publications

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“…Ramasamy and Kasuni [5,6] reported that the method to track the phase angle is not accurate and not suitable for fast synchronization.…”

Section: Z=1-k1 /Kpmentioning

confidence: 99%

Control of Dynamic Voltage Restorer Using Novel Fast Two Vector Phase-Locked Loops Regulator

Almathnani,

Lesewed,

Alakshi

et al. 2021

JOPAS

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A fast two-vector Phase-locked loops (PLL) control has been proposed to control the phase and frequency of the grid voltage using 48-pulse switching. The novel controller senses the phase shift of the grid voltage as a frequency deviation by the load and locked to the positive sequence. The controller was designed to track the grid voltage angle and kept the grid frequency within the satisfying rang at all the time. The PI- controller was proposed to obtain the desired performance of the PLL. The fast PLL phase shift of the grid voltage. The test results shows that the new design of controller can control the response of the positive sequence between -1.75p.u to 1.75p.u. With in-phase compensation. The proposed PLL controller has been simulated by using PSCAD/EMTD software package.

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“…Ramasamy and Kasuni [5,6] reported that the method to track the phase angle is not accurate and not suitable for fast synchronization.…”

Section: Z=1-k1 /Kpmentioning

confidence: 99%

Control of Dynamic Voltage Restorer Using Novel Fast Two Vector Phase-Locked Loops Regulator

Almathnani,

Lesewed,

Alakshi

et al. 2021

JOPAS

View full text Add to dashboard Cite

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“…Modern power electronic converters, variable speed drives who penetrates harmonics in the system is also one of the reasons for unbalanced in the system. The majority of pieces of literature [1], [2], [3], and [4] used energy storage based compensation techniques to compensate for the unbalanced condition mostly based on energy storage elements. They supplied injected energy from energy storage elements [1] such as a battery, the capacitor through a bi-directional converter.…”

Section: Introductionmentioning

confidence: 99%

Mitigation of harmonics and unbalanced source voltage condition in standalone microgrid: positive sequence component and dynamic phasor based compensator with real-time approach

Rane¹,

Wagh²

2019

Heliyon

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Penetration of Distributed Energy Resources (DER) is in high demand to supply power to the load where the grid is not available. Many of these sources are a single phase source used to form standalone Microgrid (MG). Single phase connectivity of these sources results in an unbalanced source voltage condition (UbSVC). Interfacing power electronic devices also inject the harmonics into Point of Common Coupling (PCC) voltage. The effect of this unbalance and harmonics on the operation of standalone MG is analysed in this paper in a twofold manner. One at a reduced power transfer from DER to load and the other is an error produced in Phase Locked Loop (PLL) operation. Positive Sequence Component (PSC) based and Dynamic Phasor (DP) based compensation techniques are proposed in this paper to mitigate the effect of UbSVC. Simulation validates that both the proposed methods are capable to provide balanced load voltage condition under UbSVC in terms of Voltage Unbalance Factor (VUbF). It also enhances the power transferred from DER to load during an UbSVC. The performance of the proposed compensator during UbSVC and harmonic presence is validated in real-time simulation using Opal-RT and dSPACE simulators.

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“…The pre‐sag compensation method compensates both magnitude and phase angle of the voltage. When the voltage sag is caused by ungrounded faults, a noticeable phase shift appears and the control system compensates both the magnitude and the phase shift of the voltage waveform . The drawback of this technique is that the high injection of voltage magnitude and, subsequently, a high amount of active power, which must be provided by an energy storage unit such as the battery, can reduce the lifetime of the battery.…”

Section: Introductionmentioning

confidence: 99%

Study of fuzzy based control algorithm for dynamic voltage restorer

Taghizadeh

Tan

Karimi-Ghartemani

2015

Int. Trans. Electr. Energ. Syst.

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SUMMARYVoltage sags appear in a short time period between half a cycle and 1 minute. The control system of a dynamic voltage restorer should have a fast yet smooth response in detecting, synchronizing, and injecting the appropriate level of compensating voltage to protect sensitive electrical components against probable damages. Moreover, an optimal strategy for the energy storage usage is essential to achieve an extended lifetime for it. This paper proposes an improved control algorithm for a dynamic voltage restorer to address these two issues. The proposed control system significantly reduces the detection and synchronization times during voltage sag by combining the fuzzy logic and the enhanced phase lock loop concepts. Furthermore, an auxiliary control system is introduced to manage the injection strategies during different types of faults to extend the lifetime of the battery.

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Dynamic Voltage Restorer For Voltage Sag Compensation

Cited by 29 publications

References 6 publications

Control of Dynamic Voltage Restorer Using Novel Fast Two Vector Phase-Locked Loops Regulator

Control of Dynamic Voltage Restorer Using Novel Fast Two Vector Phase-Locked Loops Regulator

Mitigation of harmonics and unbalanced source voltage condition in standalone microgrid: positive sequence component and dynamic phasor based compensator with real-time approach

Study of fuzzy based control algorithm for dynamic voltage restorer

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