Variable Engine Speed Generators
The large growth in the diesel/gasoline engine driven generator market is driven by numerous factors including utility price increases and surcharge pricing.
If you are seeking a cost effective way to transition to variable engine speed in your gen-set products, please contact us to discuss how your system and operating modes might take advantages of the advanced capabilities of VeriTran's drive trains.
Application
- Enable a gen-set's engine speed to vary with power demand while keeping alternator RPM constant at the 60 Hz frequency of the utility grid
- Improve fuel economy for remote worksite power generators (~100 kW) and optimize cost savings for power peaking generators (100 kW -- 200 kW) in industrial distributed generation
- With a direct drive gen-set, the engine RPM must be kept constant at the RPM required for the maximum load expected on the generator
- The constant high RPM results in sub-optimal fuel economy
- Running the engine constantly under loaded results in "wet stacking" that drives up maintenance costs
- Gaining the economic advantages of variable engine speed generator operation requires AC frequency control devices
- Pure sine wave AC frequency inverters yield good energy conversion and precise frequency control but can add significantly to gen-set capital cost
- Operating temperature constraints on these inverters can impact remote site operations
- Enables Constant Speed AC Alternator While Allowing Variable Speed Engine Operations for Fuel/Maintenance Economy
- Constant speed generator easiest to synchronize with grid in power peaking and distributed generation
- Constant speed generator yields precise frequency and smooth waveform for supporting computers, telecommunications and other precision electronics at remote sites
- Potentially Lower Cost Than Pure Sine Wave Inverter Products
- Eliminates Frequency Inverter Thermal Management Issues