In this paper author discussed PI and fuzzy controllers with the three phase inverter concept and this converter connected to induction motor drive as load. This presents a unified control strategy that enables both islanded and grid-tied operations of three-phase inverter in distributed generation, with no need for switching between two corresponding controllers or critical islanding detection...

Received Apr 4, 2017 Revised May 9, 2017 Accepted Jun 30, 2017 This paper proposes a power management strategy of parallel inveters based system, to enhance the power generation capacity of the existing system with distributed energy sources one has to choose DG source based inverter connected in parallel with the existing system.Two DG sources PV, Fuel cells feeds the DC voltage to two paralle...

Islanded operation of distributed generators is a problem that can take place when they are connected to a distribution system. In this paper an islanding detection method is presented for inverter based distributed generation (DG) using under/over voltage relay. The method is an adaptive one and is based on the change of DG active power reference (Pref) in inverter control interface. The activ...

The presence of a significant DG capacity in distribution networks will result in some conflicts with the operation of the system, mainly because, unlike the meshed transmission system, the distribution system is usually designed as a “passive” radial system. In general, the impact of DG depends on its penetration level in distribution network as well as on DG technology (e.g. synchronous gener...

Distributed generation (DG) is one of the key components of the emerging microgrid concept that enables renewable energy integration in a distribution network. In DG unit operation, inverters play a vital role in interfacing energy sources with the grid utility. An effective interfacing can successfully be accomplished by operating inverters with effective control techniques. This paper reviews...

-------------------------------------------------------------------------------------------------------------------------------------------------Abstract –This paper demonstrates the functions of a dual voltage source inverter (DVSI) to improve power quality and reliability of the microgrid system using instantaneous symmetrical component theory (ISCT). The proposed DVSI scheme consists of two ...

The microgrid has been defined to cope with the large penetration of distributed generations (DGs). is capable operating in grid-connected mode (GC) and islanded (IS). In microgrid, (DGs) are always connected power network via inverters. Grid Connected mode, DGs commonly acts as current controlled sources retain a high grid-current quality fast dynamic response photovoltaic wind generation syst...