Volt/VAR optimization

Eaton's CYME Volt/VAR Optimization module capabilities include:

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

Eaton's CYME Volt/VAR Optimization module can perform:

• VAR Optimization
• Conservation Voltage Reduction (CVR)

The Conservation Voltage Reduction objective is contrary to the normal approach of operating Volt/VAR control devices individually. It recommends concurrent device settings for shunt capacitors, load tap changers and voltage regulators all at the same time to recommend the optimal settings for the devices.

Optional constraints can be applied to a given simulation such that the analysis considers them when making a setting recommendation. Constraints include:

• Minimize active power demand
• Minimize active power losses
• Remove abnormal conditions
• Power factor constraint at substation or at multiple selected devices
• Reactive factor constraint at substation or at selected devices

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 varying power factor needs.

Through illustrative charts and reports, the module will provide a comprehensive Volt/VAR control device management analysis to help you find viable ways to save energy.

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

With Eaton's CYME software, Volt/VAR optimization case studies can be built and the annual savings of different scenarios compared.

Since the module helps alleviate overloading conditions, installations of new equipment can be postponed and maintenance costs reduced, resulting in further savings.