12-11-2012, 11:45 AM
Novel FACTS Based Schemes for Distribution Networks with Distributed / Dispersed Renewable Wind Energy
pNovel FACTS Based Schemes.ppt (Size: 334 KB / Downloads: 120)
Introduction
Wind energy is a promising energy and becomes increasingly popular.
By 2005, the worldwide capacity had been increased to 58, 982 megawatts
World Wind Energy Association expects 120,000 MW to be installed globally by 2010.
Wind Energy Conversion Scheme (WECS)
Stand alone
Grid Integration
Distributed/Dispersed Renewable Wind Energy
Located close to where the power is needed
Low reliability
Motivations
Energy crisis
Shortage of conventional fuel based energy
escalating prices
Environmental Issues
Greenhouse gas emission
Acid rain
Water pollution
Large wind farm emerging (in the range of several megawatts )
Many new interface requirements regarding the full integration of large dispersed wind power into the power grid
Challenges for dispersed wind energy integrate into the distribution network
Wind power injected into the grid is highly variable
Electrically weak distribution networks
- Radial meshed
- Large R/X ratio distribution line
WECS that employed induction machine may bring heavy reactive burden to the grid
Objectives
Validating the effectiveness of several FACTS based schemes developed by Dr. Sharaf, for
Reactive power compensation
Power factor correction
Harmonic reduction
In distribution networks with dispersed renewable wind energy integrated
Significance
provide the industrial branches with more alternative countermeasures that can pave the way for the gird integration of renewable wind energy
ease the environmental pollution by reducing the demand of power generated by fossil fuel
Methodology
Simulation Environment: MATLAB/SIMULINK
Using discrete simulation mode with a sample time of 0.1 milliseconds
Parameters optimization: off-line Trial-and-Error method