smart transmission grid vision and framework
TRANSCRIPT
Smart Transmission Grid: Vision and Framework
Presented by:Guided By:
ContentsIntroductionChallenges and need for future smart
transmission gridFramework and Characteristics of Smart
Transmission GridsSmart Control CentersSmart transmission NetworkSmart substationIntegration FrameworkConcluding remarksReferences
INTRODUCTIONThe development of human society and
economic needs was the catalyst that drove the revolution of transmission grids stage-by-stage with the aid of innovative technologies.
As the backbone used to deliver electricity from points of generation to the consumers, the transmission grid revolution needs to recognize and deal with more diversified challenges than ever before.
Challenges and need for future smart transmission grid Environmental challenges-coal
based ,natural disaster, space Market/consumer needs-power quality, full
fledged, communication with grid Infrastructure challenges-fast aging
devices, wide area monitoring, online assessment fast and accurate measurement
Innovative technologies-are not mature enough or not available, lack compatibility to accommodate spearhead technologies
Framework and Characteristics of Smart Transmission Grids Digitalization-unique platform for fast and
reliable sensing, measurement, communication, computation, control, protection, visualization, and maintenance of the entire transmission system.
Flexibility- Expandability, Adapatibility,multiple control
strategies to coordinate,compability to accommodate
Intelligence-intelligent technologies and human expertise will be incorporated
Resiliency-Self healing capability to reconfigure it self online computation and analysis.
Sustainability-sufficiency, efficiency and environment friendly
Customization-tailored for the demand of operators covenience
Enabling technologies
New materials and alternative clean energy resources
Advanced power electronics and devices-qualityCommunications-serve the basis for
computing,control and intelligenceAdvanced computing and control
methodologies-distributed copu will help in real time modelling and simulation.
Mature power market regulation and policiesIntelligent technologies-knowledge
discovery,self learning
SMART CONTROL CENTERS Monitoring/Visualization
phasor measurement units for voltage angles,GIS,interfacing
Analytical Capability
The present analysis is based on predefined generator and transmission models. This does not represent the real-time dynamic characteristics of the system. Therefore, the future online analysis in the control center shall perform dynamic model update and validation. The updated and validated data will be used for the online stability analysis
Controllability
Real time action, coordinate capability
Interactions with Electricity Market
Should able to include to alternate sources
SMART TRANSMISSION NETWORKS
High-Efficiency and High-Quality Transmission Networks-
long-distance transmission is accomplished by using controllable high-capacity ac and dc facilities, ., 6- or 12-phase transmission line configurations, allow for greater power transmission, Advanced conductors
Flexible Controllability, Improved Transmission Reliability and Asset Utilization Through the use of Advanced Power Electronics-
facts devices to relieve congestion,integration with the help of HVDC,Solid state circuit breakers
Self-Healing and Robust Electricity Transmission Monitoring system for transformer and circuit breaker
Advanced Transmission Facility Maintenance
live line maintenance, prevention programmers can save from catastrophic failures
Extreme Event Facility Hardening System
Identify potential extreme contingencies
Smart substation It should enable more reliable and efficient monitoring,
operation, control, protection, and maintenance of the equipment and apparatus installed in the substations. major characteristics –
Digitalization- compatible platform for fast and reliable sensing, measurement, communication, control, protection,
Autonomy- The operation of the smart substation does not depend upon the control centers and other substations
Coordination- find it easy to communicate and coordinate with other substations and control centers.
Self-healing- is able to reconfigure itself dynamically to recover from attacks, natural disasters, blackouts, or network component failures.
Main functions-
Smart Sensing and Measurement- all measurement signals will be time stamped with high accuracy by using a global positioning system (GPS) signal. The RTU function will be replaced by a PMU in the future.
Communication-LAN,IEC61850Autonomous Control and Adaptive ProtectionData Management and VisualizationMonitoring and AlarmingDiagnosis and PrognosisAdvanced Interfaces with Distributed Resources Real-Time Modeling
Layout of smart substation
INTEGRATION FRAMEWORK
The backbone of the integration is the distributed intelligence at the smart transmission networks and substations
which can assist with making decisions based on local information to reduce the work load of the control center.
Integration Framework
Concluding remarksThis presention has presented a unique vision of
the next-generation smart transmission grids. It aims to promote technology innovation to achieve an affordable, reliable, and sustainable delivery of electricity. With a common digitalized platform, the smart transmission grids will enable increased flexibility in control, operation, and expansion; allow for embedded intelligence, essentially foster the resilience and sustainability of the grids; and eventually benefit the customers with lower costs, improved services, and increased convenience.
REFERENCES
Base paper Smart Transmission Grid: Vision and Framework Flanging Li, Senior Member,
IEEE, Wei Xiao, Member, IEEE, Hong bin Sun, Member, IEEE, Hui Wan, Member, IEEE, Jiamusi Wang, Member, IEEE, Yan Xia, Member, IEEE, Zhao Xu, Member, IEEE, and Pei Zhang, Senior Member, IEEE
2. G. Lu, J. Liu, and C. Zhang, “The technology development of substation digitization,” (in
Chinese) Power Syst. Technol., vol. 30, Suppl., pp. 499–504, Oct. 2006. 3. J. R. Ron cero, “Integration is key to Smart Grid management,” in Proc. IET-CIRED Seminar
Smart Grids for Disturb., Jun. 23–24, 2008, pp.1–4. 4. R. Cosse, Jr., J. E. Bowen, H. T. Combs, D. G. Dunn, M. A. Hildreth, and A. Pilcher, “Smart
industrial substations,” IEEE Ind. Appl. Mag., vol. 11, no. 2, pp. 12–20, Mar.–Apr. 2005. 5. The transmission smart grid imperative Developed for the U.S. Department of Energy
Office of Electricity Delivery and Energy Reliability by the National Energy Technology Laboratory September 2009
6. F. F. Wu, K. Moslehi, and A. Bose, “Power system control centers: Past, present, and future,”
Proc. IEEE, vol. 93, no. 11, pp. 1890–1908, Nov. 2005.