Control Strategy for a Three-Phase Four-leg Grid Connected PV Inverter under Unbalanced Faults

Kamil, Haval Sardar; Said, Dalila Mat; Mustafa, Mohd Wazir; Miveh, Mohammad Reza; Hussin, Siti Maherah

doi:10.1109/pecon.2018.8684184

Cited by 6 publications

(3 citation statements)

References 16 publications

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“…5 shows a typical control scheme for the grid‐connected mode involving a secondary communication‐based layer. This section summarises the available literature [14, 15, 16, 17, 20, 24, 26, 162, 219, 226–366] on unbalance mitigation in the grid‐connected scenario of both single and multiple inverters.…”

Section: Unbalance Mitigation In the Grid‐connected Modementioning

confidence: 99%

“…SMC is modified by adding a fuzzy function in [297] for grid‐connected VSI and a controller is designed in [298] for the simultaneous injection of both the current sequences into the grid. Other approaches under unbalanced grid conditions include an integrated controller for enhanced LVRT control in [299], injection of NS currents under sags in [300], neural network‐based least mean sixth CC technique in [301], cascaded three‐loop current controller in [302, 303], new algorithms for RCG under unbalances in [304], proper regulation in terms of the high voltage ride through in [305], PR‐based compensation controller in [306], control of multi‐functional four‐wire DGs in [307, 308], and a simultaneous harmonic and unbalance compensation control in [309]. An improved DPC is studied in [310] based on the inductance estimation based on the gradient correction method.…”

Section: Unbalance Mitigation In the Grid‐connected Modementioning

confidence: 99%

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Unbalance mitigation strategies in microgrids

Vijay

Doolla

Chandorkar

2020

IET Power Electronics

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Unbalance or asymmetry in the distribution network is a well-known power quality issue. In the modern active distribution system, with the increasing penetration of renewables, this phenomenon becomes more pronounced. In the context of microgrids (MGs), several works have been proposed for the management and mitigation of the unbalance, for both the sharing of unbalanced load and maintaining the voltage quality in the islanded mode and for the control of distributed generators in the grid-connected mode during unbalanced conditions. This study comprehensively reviews, summarises, and classifies the various strategies of the unbalance mitigation techniques for the islanded and grid-connected modes of operation for threephase MGs and presents the possible challenges and avenues for future investigations on the topic.

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Section: Unbalance Mitigation In the Grid‐connected Modementioning

confidence: 99%

Section: Unbalance Mitigation In the Grid‐connected Modementioning

confidence: 99%

Unbalance mitigation strategies in microgrids

Vijay

Doolla

Chandorkar

2020

IET Power Electronics

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“…In recent years, the use of renewable energy sources (RESs) has remarkably increased and they are currently becoming a popular option to replace the dependency on fossil fuels for the effort to achieve the sustainable development [1,2]. Therefore, it is needed to integrate more RESs in the power system to provide economic and environmental advantages [3]. However, the increasing penetration of RESs is required power electronic-based grid side converters to ease the smooth, reliable and efficient integration with he power system.…”

Section: Introductionmentioning

confidence: 99%

Recent advances in phase-locked loop based synchronization methods for inverter-based renewable energy sources

Kamil

Said

Mustafa

et al. 2020

IJEECS

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<p>Recently, researchers have shown an increased interest in renewable energy sources (RESs) to improve power quality, reliability and stability of the power system. However, RESs require proper control strategies to ride through grid disturbances and stay connected to the main grid for the stability contribution. Moreover, the control of them relies mainly on the synchronization algorithms to precisely detect the voltage phase angle, magnitude and frequency. Throughout the years, various synchronization schemes have been introduced and developed. In the renewable-based generation sources, the phase-locked loop (PLL) is a well-known technique for operating grid-tied power converters for the estimation of the synchronization information and grid voltage monitoring. This paper aims to provide a comprehensive review of the recently developed PLL algorithms for grid synchronization applications. At first, various estimation techniques are discussed. Then, a comparison between various PLLs and possible future works are recommended.</p>

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