Phase Angle Alarming
Statement of Work
Part A - General
A1. Goals of this Contract
The objective of this contract is to assist WECC JSIS in assessment of phase angle pairs
and setting up phase angle alarm limits.
A2. Background
A number of utilities and grid operators have made significant investment in the
deployment of a production-grade synchro-phasor measurement infrastructure across the
North-America. The investment is expected to provide the benefits in the power system
reliability improvement, unlocking transmission capacity, congestion management, and
enabling reliable wind integration and operation. Majority of these benefits will be
realized through the deployment of real-time situational awareness and control
applications.
Wide-Area Situational Awareness (WASA) applications will provide grid operators with
actionable information to help them navigate the power system to a secure state and to
deal effectively with disturbance events. The applications will address areas of voltage
stability, angular stability, oscillation detection and power-frequency controls.
Phase angle alarming is one of the applications to be deployed as a part of WASA. The
objective of this work is to help WECC JSIS in setting phase angle limits.
A3. Project Location.
Majority of the project will be performed at the Contractor’s office.
Contractor must be able to attend:
- Monthly conference calls with WECC JSIS team
- Participating and reporting at WECC JSIS meeting at least three times a year
- Technical review meetings
Note that security clearance is required to access the federal facilities.
Non US Citizens must be pre-approved prior to access being authorized to the federal
sites, must complete a Foreign National Registration Form at least 45 days in advance of
scheduled visit.
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A4. WECC-Furnished Property.
BPA will provide the following information as needed for successful project completion:
- Results of PSLF contingency analysis studies
- Historic synchrophasor data for system events and historic conditions
A contractor needs to have a Non-Disclosure Agreement with WECC to receive the data.
All data must be returned to WECC upon completion of the project.
Part B – Technical Approach/Tasks
B1. General Requirements:
The objective of this contract is to assist WECC RC in setting up phase angle alarm
limits.
B2. Methods to be used.
WECC (staff, RC, utilities) will conduct system studies. The studies will be done under:
- Variety of system loading condition
- Variety of generation patterns
- All lines in service as well as planned outages.
The studies will simulate a variety of contingencies used in NERC/WECC TPL
standards.
The studies will include:
- Transient stability simulations
- Voltage stability results
- Thermal overload results
A consultant shall propose a method for using the system studies to set the phase angle
limits.
A consultant shall advise WECC JSIS whether the phase angles are adequate to indicate
the system stress or whether they need to be supplemented with other information, such
as path flows, key line or generator status.
A consultant shall advise WECC JSIS on visualization methods for phase angle alarming.
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B3. Deliverables.
The project will deliver a report describing the following:
- details of approaches and algorithms that can be used for baselining and setting
phase angle alarm limits.
B4. Time Schedule
Performance time: 12 months from the date the contract is awarded
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B5. Contractor Qualifications
Please provide concise responses to a questionnaire bellow.
1. Describe in detail your technical approach for setting phase angle limits based on
power system studies and historic data analysis (70%)
2. Describe your experience with Western Interconnection system (20%)
3. Include references to previous publications in the field of power system alarming
(10%)
Please limit documented response to no more than five 11” by 8 ½” pages using a
minimum size 12 font.
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Potential Vendors EMS vendors and consultants
Vendor
Alstom Grid
EPG
Quanta Technologies
V&R Energy
University of Wisconsin
RPI
University of Iowa
Virginia Tech
Arizona State University
Montana Tech
Contact
Manu Parashar
Bharat Bhargava
Damir Novosel
Marianna Vaiman
Chris DeMarco
Joe Chow
Ian Dobson
James Thorp
Vijay Vittal
Matt Donnelly
E-mail
manu.parashar@alstom.com
bhargava@electricpowergroup.com
DNovosel@Quanta-Technology.com
marvaiman@vrenergy.com
demarco@engr.wisc.edu
chowj@rpi.edu
dobson@iastate.edu
jsthorp@vt.edu
Vijay.Vittal@asu.edu
MDonnelly@mtech.edu
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