Power System Stability & Efficiency Improvements through DC Techniques
Presentation Outline
Conference Theme – Network & RE
Integration Problems
Network & RE Integration Problems
Review of Studies
Variable Speed Generation!
How Does this Work?
Typical Solar Data (Source: UQ)
Variable Speed Generation
Engine & Generation Characteristics
Commercial Considerations
Slow Speed Running – Impact on the Engine
MV Inverter VSD – Technology
HVDC LINKS – HIGH POWER TRANSMISSION
Established Technology for High Powers
DC Applied in Electrical Distribution Networks
Distribution Network Issues
Network Segmentation – DC Interconnector Unit
(back to back inverters)
DC Interconnector Unit – Features

Variable Speed Generation
Fast Response

Spinning reserve Genset is online – No starting or synchronising time

Reduced fuel consumption – Spinning reserve

Facilitates higher load factor – Security without burning more fuel

Ramp rate smoothing option with large DC link capacitors

Online Inverter can function as a static VAR generator – Reduced VAR
demand on generators – Higher load factors