INVESTIGATION OF A DYNAMIC POWER LINE RATING CONCEPT FOR IMPROVED WIND ENERGY INTEGRATION OVER COMPLEX TERRAIN
Dynamic Line Rating (DLR) is a smart grid technology that allows the rating of power line to be based on real-time conductor temperature dependent on local weather conditions. In current practice overhead power lines are generally given a conservative rating based on worst case weather conditions. Using historical weather data collected over a test bed area, we demonstrate there is often additional transmission capacity not being utilized with the current static rating practice. We investigate a new dynamic line rating methodology using computational fluid dynamics (CFD) to determine wind conditions along transmission lines at dense intervals. Simulated results are used to determine conductor temperature by calculating the transient thermal response of the conductor under variable environmental conditions. In calculating the conductor temperature, we use both a calculation with steady-state assumption and a transient calculation. Under low wind conditions, steady-state assumption predicts higher conductor temperatures that could lead to curtailments, whereas transient calculations produce conductor temperatures that are significantly lower, implying the availability of additional transmission capacity.
- Research Organization:
- Idaho National Lab. (INL), Idaho Falls, ID (United States)
- Sponsoring Organization:
- DOE - EE
- DOE Contract Number:
- DE-AC07-05ID14517
- OSTI ID:
- 1166029
- Report Number(s):
- INL/CON-14-31247
- Resource Relation:
- Conference: ASME 2014 4th Joint US-European Fluids Engineering Division Summer Meeting and 11th International Co,Chicago, IL,08/03/2014,08/07/2014
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
13 HYDRO ENERGY
14 SOLAR ENERGY
24 POWER TRANSMISSION AND DISTRIBUTION
29 ENERGY PLANNING
POLICY AND ECONOMY
42 ENGINEERING
COMPUTERIZED SIMULATION
FLUID MECHANICS
TRANSMISSION
WIND
CFD
Computational Fluid Dynamics
Dynamic Line Rating
Transmission
Wind