Transition Control Strategy Between Standalone and Grid-Connected Operations of Voltage-Source Inverters

Arafat, Md. Nayeem; Palle, Sreeshailam; Sözer, Yilmaz; Husain, Iqbal

doi:10.1109/tia.2012.2210013

Cited by 80 publications

(32 citation statements)

References 17 publications

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“…Grid and inverter supply power to the load simultaneously. As load power is greater than the output power of the inverter, the inverter output voltage experiences an inrush spike when the grid breaks off at t 1 . As in the analysis of Fig.…”

Section: Resultsmentioning

confidence: 99%

“…In the past two decades, renewable energy technologies have been proposed to relieve environmental pollution and achieve sustainable development [1], [2]. Renewable energies, including photovoltaic power energy, wind energy, and others, have been widely applied to distributed generation (DG) installations [3].…”

Section: Introductionmentioning

confidence: 99%

“…The value of the capacitor is smaller than that of the capacitor designed in [8]- [10] (C f = 14.25 μF, 20 μF, 75 μF, respectively). The control objectives of the DG system in the present work are (1) to supply a sinusoidal output voltage at the load terminal (v inv ) in SA mode, (2) to transfer a sinusoidal grid current (i g ) to the UG in GC mode, and (3) to obtain a smooth transition between Critical-load Fig. 1.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Control Strategy Design of Grid-Connected and Stand-Alone Single-Phase Inverter for Distributed Generation

Cai¹,

Lu²,

Lin³

et al. 2016

Journal of Power Electronics

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Dual-mode photovoltaic power system should be capable of operating in grid-connected (GC) and stand-alone (SA) modes for distributed generation. Under different working modes, the optimal parameters of inverter output filters vary. Inverters commonly operate in GC mode, and thus, a small capacitance is beneficial to the GC topology for achieving a reasonable compromise. A predictive current control scheme is proposed to control the grid current in GC mode and thereby obtain high-performance power. As filter are not optimal under SA mode, a compound control strategy consisting of predictive current control, instantaneous voltage control, and repetitive control is proposed to achieve low total harmonic distortion and improve the output voltage spectrum. The seamless transfer between GC mode and SA mode is illustrated in detail. Finally, the simulation and experimental results of a 4 kVA prototype demonstrate the effectiveness of the proposed control strategy.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Control Strategy Design of Grid-Connected and Stand-Alone Single-Phase Inverter for Distributed Generation

Cai¹,

Lu²,

Lin³

et al. 2016

Journal of Power Electronics

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“…However, the power quality problem of microgrid is much more serious than that of the traditional grid because of the intermittency and randomness of DERs, the high penetration between conventional grid and microgrid, the diversity of DERs, load, energy conversion unit, storage, and operating state. Microgrid power quality has the following unique features compared with the conventional power grid [7]- [12]. This paper in [13] shows the application of the model predictive controller (MPC) on Photovoltaic system using quasi-Z-source inverter (QZSI).…”

Section: Literature Surveymentioning

confidence: 99%

Model Predictive Integrated Power Quality Controller For Microgrid

Manikandan¹,

Rambabu²

2017

IJMSR

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Abstract-Model predictive control (MPC) concepts applied in novel variable reactor fordeveloping integrated power quality controller (IPQC) using magnetic flux control is proposed for improving power quality in a microgrid such as the harmonic high penetration, frequent voltage fluctuation and over current phenomenon, For the fundamental, the equivalent impedance of the primary winding is a variable reactor. MPC is applied into IPQC to regulate the supply current and the load voltage to the desired reference signals in spite of the existence of harmonic distortions in the supply voltage and the load current, possible sags or swells in the supply voltage, and variations in the load current. The design of the MPC controller is subsequently analyzed in details. The simulation studies are finally presented to verify the performance of MPC.

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“…The transition between standalone and grid connected modes, and the necessary voltage synchronization, have been studied in [1]- [2]. Moreover, automatic fault detection in the utility network for the necessary transition between connected and islanded mode has been studied in [3].…”

Section: Introductionmentioning

confidence: 99%

New Control Algorithms for Microgrids Based on Microturbines

Leibar¹,

Zamora²,

Eguia³

et al. 2024

RE&PQJ

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Abstract. This paper analyses the performance of a lowvoltage microgrid, based on microturbines, and presents new control algorithms to improve the efficiency and reliability of microgrids. Due to the importance of islanding and focusing on the efficiency and the harness of the heat of the exhaust gasses in islanded operation mode, a new control algorithm has been developed. Additionally, a new control strategy is presented for the seamless transition between islanded and grid connected operation modes based on changing the control algorithms of the microturbines.The new proposed control algorithms are tested by simulation using a low voltage network fed by 5 microturbines. Lasseter model is used to represent the dynamic behaviour of the microturbines. The paper shows the simulation results and the main conclusions of the validation process.

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Transition Control Strategy Between Standalone and Grid-Connected Operations of Voltage-Source Inverters

Cited by 80 publications

References 17 publications

Control Strategy Design of Grid-Connected and Stand-Alone Single-Phase Inverter for Distributed Generation

Control Strategy Design of Grid-Connected and Stand-Alone Single-Phase Inverter for Distributed Generation

Model Predictive Integrated Power Quality Controller For Microgrid

New Control Algorithms for Microgrids Based on Microturbines

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