含分布式发电的配电网运行.ppt

Distribution Systems With Distributed Generation:Analysis And Operation Presented By: Alex Rost Supervised by: Dr. Venkatesh, Dr. Diduch Our Objective: Develop analysis tools and operational rules to improve the economic sustainability of smaller generators distributed throughout a distribution system. Our Objective: Distributed generation scheme used for this project: Our Objective: Some Notes On Wind Energy: Costs have dropped by more than 80% in the last 20yrs [1]. Fastest growing energy technology: 20% annual growth for the last 5yrs [1]. Our Objective: Some Notes: In N.B.: Utilities required to allow embedded renewable generators to feed into the distribution system (100 kW up to transmission capabilities) [2] Projected that wind energy will supply 65% of R.P.S. by 2015 [2] Our Methodology: What We Have Done: Voltage Collapse Index What We Have Done: Voltage Collapse Index Advantages: Simple. Uses only local measurements. Easily implemented. What We Have Done: Voltage Collapse Index What We Have Done: Wind Generator / Inverter System: Can supply and absorb reactive power. Modeled as a PV bus in steady-state. What We Have Done: Distribution System With Distributed Generation Load Flow What We Have Done: Load Flow Advantages: Tailored for radial distribution systems with high R/X ratios. Fast Flexible Robust What We Have Done: What We Want To Do Next: Distribution System Management: Optimal Reconfiguration to Minimize Losses. Reactive Power Study. References: [1] J.C. Smith, “Winds of Change: Issues in Utility Integration” IEEE Power Energy Magazine, vol 3, num. 6, pp. 20-25, November/December 2005. [2] New Brunswick Department of Energy, “Province of New Brunswick Renewable Energy Policies (Presentation),” September 2005. Questions? * Distribution Load Flow Case *