Hybrid control of multiple inverters in an island-mode distribution system

Liang, Jun; Green, T.C.; Zhong, Qing-Chang

doi:10.1109/pesc.2003.1218274

Cited by 48 publications

(19 citation statements)

References 11 publications

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“…Techniques here range from centralised control requiring high-bandwidth links between the inverters and central controller [4], through to distributed on-board control that reduces the bandwidth needed but at the cost of synchronisation difficulties [4]. More recent work [5] has investigated a hybrid control scheme where proximate inverters operate in a master-slave arrangement, while remote groups use the common frequency droop method, with the goal of reducing the need for high-bandwidth communications over large distances.…”

Section: ) Inverter Controlmentioning

confidence: 99%

Minigrids: Analysing the state-of-play

Berry

Platt

Cornforth

2010

The 2010 International Power Electronics Conference - ECCE ASIA -

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Minigrids are often cited as an evolutionary path for electricity distribution systems-a way of integrating a high penetration of low emissions generation without needing to dramatically change system operation or design. Minigrids are not without their challenges though, and there is a growing body of work examining the technical issues related to the widespread uptake of minigrid technology. This survey offers a comprehensive collection and analysis of such research, painting a more complete minigrids picture, elucidating the progress that has been made thus far, and the challenges that still lay ahead.

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Section: ) Inverter Controlmentioning

confidence: 99%

Minigrids: Analysing the state-of-play

Berry

Platt

Cornforth

2010

The 2010 International Power Electronics Conference - ECCE ASIA -

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“…In this paper, we further present full experimental verification and design guideline. As shown in Figure 1, various inverters and local loads are tied to the PCC (point of common coupling) [26]. The proposed droop-controlled inverter regulates the voltage and the frequency of the microgrid, whereas the other inverters are operated as current-controlled source (grid-following inverter).…”

Section: Introductionmentioning

confidence: 99%

A Riding-through Technique for Seamless Transition between Islanded and Grid-Connected Modes of Droop-Controlled Inverters

Lee

Kuo

et al. 2016

Energies

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This paper presents a seamless transition method for a droop-controlled inverter. The droop control is suitable to make the inverter work as a voltage source in both islanded and grid-connected modes, however, the transfer between theses modes can result in a big inrush current that may damage the system. The proposed method allows the droop-controlled inverter to improve the transient response when transferring between modes, by detecting the inrush current, activating a current control loop during transients, and then transferring back to droop-controlled mode smoothly by using a virtual inductance loop. In addition, a local phase-locked-loop (PLL) is proposed to align the inverter voltage with the grid in order to reduce the transient current during the transition. Therefore, the droop-controlled inverter is able to operate in both grid-connected and islanded modes, providing as well a smooth transition between them, requiring neither synchronization signals nor grid-side information. The control algorithm and design procedure are presented. Experimental results from a laboratory prototype validate the effectiveness of the proposed method.

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“…The switching between grids connected mode and islanding mode was accomplished with no communication between the DG and grid network. A hybrid control of multiple inverters based DGs in an islanded mode were presented in (7) . One of the inverters was dedicated for controlling the voltage while the other inverters were controlled to inject the required current.…”

Section: Introductionmentioning

confidence: 99%

Distributed Generation, Using Battery Pack and Fuzzy Controller for Charge/Discharge Control

Naderi

Mohammadi²

2011

JPES

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In this paper a strategy is introduced for distributed generation (DG) structure by using battery package and SPWM method for bi-directional AC/DC convertor. In proposed structure, a battery pack is connected to the power network via an AC/DC converter and a filter block. Active power direction has been controlled by a fuzzy controller for battery charge/discharge, considering battery state of charge (SoC). Also, a method has been introduced for islanding detection and isolated operation of DG system. Finally, simulation results, shows the effectiveness of proposed method.

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Hybrid control of multiple inverters in an island-mode distribution system

Cited by 48 publications

References 11 publications

Minigrids: Analysing the state-of-play

Minigrids: Analysing the state-of-play

A Riding-through Technique for Seamless Transition between Islanded and Grid-Connected Modes of Droop-Controlled Inverters

Distributed Generation, Using Battery Pack and Fuzzy Controller for Charge/Discharge Control

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