DC Distribution Network For a better low carbon world Prof. Rong - - PowerPoint PPT Presentation

DC Distribution Network

• Prof. Rong Zeng

Assistant Prof. Zhanqing Yu Department of Electrical Engineering (EEA) Tsinghua University 01/13/2011

——For a better low carbon world

• Rong ¡Zeng, ¡ ¡

¡Professor, ¡Vice ¡Director ¡ ¡Dept. ¡of ¡Electrical ¡Engineering, ¡ Tsinghua ¡University ¡

• Main ¡research ¡topics ¡is ¡

– UHV ¡transmission, ¡ ¡ – DistribuAon ¡AutomaAon ¡ ¡ – EMC ¡in ¡power ¡systems. ¡

Demo DC Connection System

Distribute Generation and New Energy Application Technology Research Platform The infrastructure should be improved when DC distribution technology was induced.

• Fig. 8 Diagram of the research platform

Demo DC Connection System

• Fig. 6 VRB Stack and its Testing System

High Performance Battery System and MMC Invertor

Vanadium Redox Battery Stacks and its Testing System Lithium Iron Phosphate Battery Stack Super Capacitors Multi-functional Battery Testing System Unidirectional DC/ DC Converters Bidirectional DC/DC Converters Bidirectional DC/AC Converters

Possible issues

l Infrastructure l Potential use for different circumstances The DC distribution network may be applied to：

DC ¡ DistribuAon ¡ Network

Family ¡ Users Data ¡ Centers Tele ¡ Centers Urban ¡ Micro-­‑ Grids Shipboard ¡ Systems Off-­‑shore ¡ Power ¡ StaAons

• Fig. 4 Potential use of DC Distribution Network

Technology Research Topics

• The manufacture of inverters and converters
• The function of PEDs

Key Equipment Development

• The application of distribute generation
• The installation of energy storage devices

Integrated with the Renewable Energy Grounding & Overvoltage System Protection and Control with PEDs

• The impact and interaction characteristics between the DC system and the AC system

Impact on AC Systems Evaluation on Reliability & Safety Cost Reduction

Schedule

Target Time Range specifications Remarks System research and design 2011.1~2011.12 Infrastructure Key technology Demo system construction 2011.7~2012.6 several hundred Watt real system construction 2012.6~ 10MW For datacenter, load center, home use and so

• n with support
• f government

and State Grid of China

• Table. 1 Schedule of DC distribution construction