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Volt/VAR Optimization

Demographic growth, economic development and new technology trends such as electric vehicles are all adding up to cause surging energy demand. Utilities are striving to sustain the energy supply expansion, and the arrival of smart grid technologies provides different methods to utilities to optimize their network. The CYMETM Volt/VAR Optimization module is a powerful tool to help engineers find the optimal way to operate their distribution network such that the need of today’s and tomorrow’s demand can be met through energy efficiency improvement and demand reduction.

Program Features

With smart grid initiatives, Volt/VAR optimization is the method of choice to achieve peak shaving, reduce system losses and improve voltage profile.

The Volt/VAR Optimization (VVO) analysis module will help engineers find the optimal operating settings of their Volt/VAR regulating devices to reach better network efficiency and reliability in an economical way.

The CYME Volt/VAR Optimization module capabilities include:

  • Conservation Voltage Reduction (CVR) analysis
  • VAR optimization analysis
  • Capacitor sequencing by defining capacitor switching priority
  • Multiple power system constraints
  • Single load scaling factor and multiple load scaling factor
  • Economical benefits evaluation
  • User-defined voltage profile charts and tabular reports

Include the CYME Volt/VAR Optimization module in your distribution planning to achieve a more efficient and reliable network.

CVR and VAR Optimization

The CYME Volt/VAR Optimization module uses reliable algorithms to perform:

  • VAR Optimization
  • Conservation Voltage Reduction (CVR)

Conservation Voltage Reduction defies the traditional approach of operating Volt/VAR control devices individually. It now evaluates simultaneously shunt capacitors, load tap changers and voltage regulators to recommend optimal concurrent device settings.

Multiple System Constraints

Additional constraints can be applied to a given simulation such that the analysis gives more weight to them when making a setting recommendation. Constraints include:

  • Minimize active power demand
  • Minimize active power losses
  • Remove abnormal conditions
  • Improve power factor at substation

Load Factors and Capacitor Sequencing

A single load factor or a user-defined load scaling table can be used. With multiple load scaling factors, capacitor bank sequencing can be selected to meet the varying power factor needs.

Through illustrative charts and reports, the CYME VVO analysis module will allow a much more comprehensive Volt/VAR resources management to help you find viable ways to save energy.

Economic Benefits

The reduction in active power generation and the decrease in active power loss brought by the VVO module are both measurable.

With the CYME software, VVO management study cases can be built and the annual savings of different scenarios can be compared.

Equipment operating beyond their rated characteristics risk failure and a shortened lifespan. Since the VVO module helps alleviate overloading conditions, installations of new equipment can be postponed and maintenance cost reduced, resulting in further savings.

Real-time Simulation with CYME Server

The CYME Server solution, offers a complete Service Oriented Architecture solution that is embedded into your enterprise applications. It is possible to perform quasi-real time Volt/VAR management studies to quickly respond to any network change.

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Contact information

International & Canada
Tel:(450) 461-3655
Fax:(450) 461-0966
Tel:(800) 361-3627
Fax:(781) 229-2336