EPPEI Power Seminar #4

Presenter:	Nirmal-Kumar Nair Ph.D. Student (Advisor: Dr. GM Huang)
Topic:	Transaction based Voltage Security Margin Allocations for Deregulated Electric Markets
Time:	May 3rd, Friday at 2:00pm
Location:	119D ZEC

ABSTRACT:

In the restructured energy markets, the equitable sharing of voltage stability cost is an issue that needs some addressing. In the emerging transactions based power market environment, the responsibility assessment of voltage security cost that is dependent on reactive generation resources, real power transfer level and load characteristics for each individual transaction needs to be ascertained.

The presenter here would first discuss about the formulation of a Transaction Based Power Flow (TBPF). A transaction pair, in this approach, represents an energy purchase-sale pair consisting of sending buses (delivering pair) and associated receiving buses (consuming power). The basis of the formulation is that transaction pair is self-balancing i.e. its net real generation should equal to the sum of its active demand and associated transmission loss.

The presenter would then discuss about the index L for voltage stability margin evaluation. The details of a new proposed voltage security decomposition scheme, using the TBPF and index would be revealed. The authors feel that this decomposition has the potential to address the sharing of voltage security cost.

Presentation slides