Flexible AC

The Quanta Technology approach to FACTS is to consider the entire lifecycle, including emerging needs for optimizing the value of FACTS assets as system needs evolve.  Utilities started deploying FACTS devices in significant numbers in the mid-2000s and this trend has continued through today.  FACTS devices can have an operational life of 30 years or more, with appropriate maintenance and upgrades of digital controls.  As power system operations have been changing significantly with the advent of DER and other new technology and more FACTS systems approach middle age, there is an opportunity to revise the operational strategy of individual FACTS devices.  Quanta Technology can apply our expertise in transmission planning and utility operating trends to optimize the value of a FACTS system at mid-life, which is frequently an advisable time to also upgrade digital control system hardware.  

Flexible AC Transmission Systems

Flexible AC Transmission Systems (FACTS) have been deployed to solve a diverse set of challenges in power transmission systems for more than 30 years. In the past 10 years, utility planners have utilized FACTS equipment for applications to manage power flow in transmission systems to mitigate risks when thermal power plants retire. As new challenges face the transmission grid, FACTS devices will continue to be an integral part of the planner’s tool kit for addressing voltage, capacity, and system reliability. Experts from Quanta Technology work in all phases of the FACTS project lifecycle, not only planning studies, specification development, vendor selection, and project implementation, but also lifecycle services to maximize the total value of the system for the owner.

FACTS Planning Studies

  • Technical and economic analysis of FACTS devices as non-wires alternatives(NWA) to new transmission lines
  • Voltage and stability performance
  • Integration of renewable generation
  • Sizing and optimization with other reactive devices
  • Inertia and angular stability
  • Thermal power plant retirements

Procurement and Project Services

  • Specification development and updates
  • Vendor qualification
  • Procurement strategy
  • Owner’s engineer services
  • Real Time Digital Simulator (RTDS) testing
  • Hardware-in-the-loop simulations

Specialized Application Studies

  • Harmonic studies
  • Sub-synchronous phenomena (SSR, SSI, SSTI, SSCI)
  • Insulation coordination and transient voltage
  • Active controller device interactions
  • Flicker and power quality assessment

Asset Management and Renewal Planning

  • Performance warranty assessments
  • Post-warranty support
  • Aging asset assessments and life-extension strategy
  • Optimization of existing FACTS assets
  • Knowledge transfer
  • Communication and security infrastructure

 

 

Why Quanta Technology?

Flexible AC Transmission Systems (FACTS) have been deployed to solve a diverse set of challenges in power transmission systems for more than 30 years. In the past 10 years, utility planners have utilized FACTS equipment for applications to manage power flow in transmission systems to mitigate risks when thermal power plants retire.
As new challenges face the transmission grid, FACTS devices will continue to be an integral part of the planner’s tool kit for addressing voltage, capacity, and system reliability. Experts from Quanta Technology work in all phases of the FACTS project lifecycle, not only planning studies, specification development, vendor selection, and
project implementation, but also lifecycle services to maximize the total value of the system for the owner.

Long-Term Asset Strategy
Quanta Technology can provide services to address the complex challenges that can arise during the lifetime of a FACTS device. The surrounding transmission system
can be expected to change in many ways. New lines may be built and thermal generation may be retired and displaced by renewable sources. Complementary technology such as PMU data and high-speed communication may be widely deployed. Other challenges can include obsolescence in control systems, cyber security, and knowledge transfer. Quanta Technology services to address these challenges include asset assessments and life-extension strategy, confirmation of system needs and opportunities for control and operational enhancements, and coordination of best practices acrosssuppliers and equipment generations:

  • Confirmation of current system need
  • Integration with complementary new technology
  • Controls and security
  • Knowledge transfer

Emerging Needs and Applications
Quanta Technology experts can also evaluate emerging FACTS concepts and provide assessments of innovative FACTS applications. Examples include coordinating the
rating and controls of SVC/STATCOM with synchronous condensers for enhanced power system performance, the use of thyristor-controlled series capacitors (TCSC)
to mitigate sub-synchronous interactions, and the application of D-FACTS as a method of power flow control.

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