1 / 10

Western Area Power Administration

Western Area Power Administration. Transmission Customer Meeting October 17, 2007. Western Area Power Administration. AGENDA: POWER OPERATIONS UPDATE General Update 890 Filing Darren Buck, Power Operations Manager ATC Calculations Mariam Mirzadeh, Transmission Planning Engr.

laksha
Télécharger la présentation

Western Area Power Administration

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Western Area Power Administration Transmission Customer Meeting October 17, 2007

  2. Western Area Power Administration AGENDA: • POWER OPERATIONS UPDATE • General Update • 890 Filing Darren Buck, Power Operations Manager • ATC Calculations Mariam Mirzadeh, Transmission Planning Engr. • Rates Update Sean Sanderson, Rates Manager

  3. Area A Generation -Load -Losses Export Area A Export Western Area Power Administration Physics of Disturbances • Thermal Overloads • Voltage Limits • System Stability • Transient Voltages • Frequency Limits • Damping • VARs and Voltage Stability • Remedial Action Schemes • System Synergy • Islanding • Cascading

  4. Western Area Power Administration Transfer Capability Limit Criteria • Total Transfer Capability (TTC) • Maximum amount of power that can be transferred across an interconnection or a transfer path from one control area to another or within an area while ensuring that the transmission system is able to suffer and recover from a severe outage (meeting the NERC/WECC reliability criteria). • Net schedules shall not exceed TTC • TTC & ATC are directional • Operating Limits • No element shall be scheduled above it’s continuous operating limits

  5. Western Area Power Administration Transfer Capability Limit Criteria Cont’d • Stability Following an Outage • N-1s shall not cause cascading • System Response to Contingencies Prior to Readjustment (Transient period) • Voltages and element loading shall meet the WECC/NERC corresponding criteria, loading shall not exceed emergency ratings

  6. Available Transfer Capability (ATC) – OATT & Mandatory Reliability Requirements

  7. Western Area Power Administration • ATC = TTC (allocated to Western) – Committed Uses • Where Committed Uses = Existing Transmission Commitments + Transmission Reliability Margin (TRM) + Capacity Benefit Margin (CBM) • TRM Includes: Unscheduled Flow (Loop Flow) Accommodation for any simultaneous limitations associated with operation under a nomogram & Uncertainty in load forecasting – regulation, etc.

  8. Western Area Power Administration • CBM Includes: Capacity for movement of water in order to meet Bureau of Reclamation/Corp of Engineers water schedules, or for moving generation under black starts conditions. • All transmission (PACI, COTP, network and P-P) reservations are subject to real-time operation operating limitations especially the Sacramento area simultaneous import Nomogram.

  9. Western Area Power Administration • CVP Network transmission ATC calculation methodology, SNR business practice # 20: https://www.westtrans.net/WASN/WASNdocs/CVP_Trans_BP-20_V_01_10-15-07.pdf OATT: http://www.oatioasis.com/WASN/WASNdocs/tariff_mastercopy_(11_05).pdf Rates:http://www.wapa.gov/sn/marketing/rates/

  10. Western Area Power Administration Questions/Discussion

More Related