Control for Grid Connected and Intentional Islanding Operation of Distributed Generation System
| Author(s) | : | Sajid Vorha, Prof. I.A. Sheikh, Associate professor |
| Institution | : | PG Student Power System, Anand |
| Published In | : | Vol. 2, Issue 13 — January 2015 |
| Page No. | : | - |
| Domain | : | Engineering |
| Type | : | Research Paper |
| ISSN (Online) | : | 2348-4470 |
| ISSN (Print) | : | 2348-6406 |
This paper presents a complete model of a typicalmicro-grid and identification of the required controlstrategies in order to operate this new type of powersystem. Many problems solve the using of individualdistribution generation. A better way to realize theemerging potential of distributed generation is to takea system approach which views generation andassociated loads as a subsystem or a “micro-grid”.The micro-grids are new concepts of electrical powerconsist of Distribution Generation, RenewableEnergy Resources and Sensitive as well as Nonsensitive load. These sources are operating in parallelto the grid and it can operate in islanding mode.During the disturbances the generation and load arenot match then the load and generation separatingislanding mode without harming the transmission lineor grid. Intentional islanding describes the conditionin which a micro-grid or a portion of the power grid,which consists of a load and a distributed generationsystem, is isolated from the grid system. In thissituation, it is important for the micro-grid tocontinue to provide adequate power to the load.Under normal operation, each DG inverter system inthe micro-grid usually works in constant currentcontrol mode in order to provide a preset power tothe main grid. When the micro-grid is isolate fromthe main grid, each DG inverter system must detectthis islanding situation and must switch to a voltagecontrol mode. In this mode, the micro-grid willprovide a constant voltage to the local load. Thispaper describes a control strategy that is used toimplement grid-connected and intentional-islandingoperations of distributed power generation. Thecontrol strategies have proven their robustness andeffectiveness in controlling the operation of microgrid while maintaining system stability.
Sajid Vorha, Prof. I.A. Sheikh, Associate professor, “Control for Grid Connected and Intentional Islanding Operation of Distributed Generation System”, International Journal of Advance Engineering and Research Development (IJAERD), Vol. 2, Issue 13, pp. -, January 2015.
