Operation principle of multiple DC smart grids
Authors:
- 1 December 2011
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- No. 21645256,p. 304-309
Abstract
Recently, smart grid has been attracting attention from the view point of the introduction of more renewable energy. However, due to the fluctuating power output of renewable energy sources, the DC bus voltage fluctuation of DC grid occurs. It becomes a major issue at the time of islanding. This paper presents coordinated operation of multiple DC smart grids. The power system consists of three DC smart grids. Each DC smart grid has PV generations, wind generators and controllable loads. In this paper, the DC bus voltage are maintained within the acceptable range by applying the power consumption control of the controllable loads, the power control by grid-connected converter and the power control by the renewable sources. Effectiveness of the proposed method is verified by simulation results in PSIMR ® environment.Keywords
This publication has 7 references indexed in Scilit:
- A Hybrid Smart AC/DC Power SystemIEEE Transactions on Smart Grid, 2010
- Installation effect by solar heater system using solar radiation forecasting2009
- Output Power Leveling of Wind Farm Using Pitch-angle Control with Fuzzy Neural NetworkElectric Power Components and Systems, 2008
- Augmented LQG controller for enhancement of online dynamic performance for WTG systemRenewable Energy, 2008
- Wind velocity and rotor position sensorless maximum power point tracking control for wind generation systemRenewable Energy, 2006
- Increasing renewable energy sources in island energy supply: case study Porto SantoRenewable and Sustainable Energy Reviews, 2004
- Neural-network-based maximum-power-point tracking of coupled-inductor interleaved-boost-converter-supplied pv system using fuzzy controllerIEEE Transactions on Industrial Electronics, 2003