Islanding Detection Method for Multi-Inverter Distributed Generation

Cardenas, Alben; Agbossou, Kodjo; Doumbia, Mamadou Lamine

doi:10.4236/jemaa.2009.13026

Cited by 17 publications

(17 citation statements)

References 16 publications

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“…Due to this significant advantage, hybrid techniques are much more effective for island protection. The most common hybrid methods are presented in [36,45,49,65,66], and Table 4 illustrates their advantages and disadvantages, and other important issues regarding this class of techniques.…”

Section: Hybrid Methodsmentioning

confidence: 99%

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Microgrids in active network management – part II: System operation, power quality and protection

Palizban

Kauhaniemi

Guerrero

2014

Renewable and Sustainable Energy Reviews

108

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Abstract. The development of distribution networks for participation in active network management (ANM) and smart grids is introduced using the microgrid concept. In recent years, this issue has been researched and implemented by many experts. The second part of this paper describes those developed operational concepts of microgrids that have an impact on their participation in ANM and in the requirements for achieving targets. Power quality is the most challenging task in microgrids, especially when the system switches from normal parallel operation (grid-connection mode) to island operation. Indeed, following planned or unplanned transitions to island mode, microgrids may develop instability. For this reason, the paper addresses the principles behind island-detection methods, black-start operation, fault management, and protection systems, along with a comprehensive review of power quality.Finally, island detection and the other topics are summarized with a flowchart and tables.

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Section: Hybrid Methodsmentioning

confidence: 99%

“…Thus, the passive method cannot support high DG penetration. However, the active method makes up for some of the disadvantage, and so some of the methods in the active technique may support multiple DGs [45,49].…”

Section: Island-mode Detection and Operationmentioning

confidence: 99%

Microgrids in active network management – part II: System operation, power quality and protection

Palizban

Kauhaniemi

Guerrero

2014

Renewable and Sustainable Energy Reviews

108

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“…5. New techniques were developed from the basic methods, such as the improved SMS islanding detection method introduced in [9]; besides, an advanced voltage positive feedback method was verified for single or multiple inverters [10]. Moreover, the performance of a two parallel-connected inverters system was studied in the literature in [11], [12] and [13], analyzing the NDZs for a combination of frequency drifting methods; Active Frequency Drift (AFD), SFS and SMS.…”

Section: ) Slip Mode Frequency Shift (Sms)mentioning

confidence: 99%

Performance of three islanding detection methods for grid-tied multi-inverters

El-Moubarak

Hassan

Faza

2015

2015 IEEE 15th International Conference on Environment and Electrical Engineering (EEEIC)

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Islanding occurs when distributed resources continue to power even though electrical power from the utility grid is no longer present. Islanding can be harmful for utility workers, who may not realize that this part is still powered. For the reason of safety hazards and equipment damage due to lack of utility control on voltage and frequency in the island, distributed resources must detect an island and immediately stop producing power. In this paper, we study the operation of multiple inverters utilizing different active islanding detection methods. The Sandia Voltage Shift (SVS), the Sandia Frequency Shift (SFS) and the Slip Mode frequency Shift (SMS) are used in this work. The study reported is based on MATLAB/Simulink time-domain simulations, taking into account modern international standards.It is shown that a multi-inverter system, which uses three different methods, can detect an island in case of power-matched load. However, it has a reduced performance and slower detection time, compared to single inverter structure.

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“…The most important features of DG system is their capability for working in both islanded and grid-connected mode. An important technical issue with DG systems is unintentional islanding operation, so special consideration should be made regarding the safe operation of DG's during connecting and disconnecting to or from the grid [2]. They have lot of methods to overcomes this issues presently, but some have less efficient, more maintenance issues, security problems and also cost problems.…”

Section: Introductionmentioning

confidence: 99%

Improved Islanding Detection Scheme for Multiple Inverter Based DG Systems

Veenaj¹,

Padma²

2017

IJERT

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Islanding operation is most important function of DG connected grid system. So we already develop the islanding techniques, which is based on lot of parameters, in this paper discussed an improved method compared with old techniques. Here a harmonic current disturbance is imposed to grid at one of the harmonic frequency, which is associated with grid voltage. Disturbance imposed by changing the parallel impedance of inverter. Our islanding detection signal is the output current of grid connected inverter at a specific harmonic frequency. In this method does not affect the overall power quality of system, because our harmonic resonance is imposed over a short time interval. We used multiple DG systems, there is no interference between the parallel DG's is observed. The performance of proposed method analised using time-domain simulation carried out in Matlab software.

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Islanding Detection Method for Multi-Inverter Distributed Generation

Abstract: Islanding detection is an essential function for safety and reliability in grid-

Cited by 17 publications

References 16 publications

Microgrids in active network management – part II: System operation, power quality and protection

Microgrids in active network management – part II: System operation, power quality and protection

Performance of three islanding detection methods for grid-tied multi-inverters

Improved Islanding Detection Scheme for Multiple Inverter Based DG Systems

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