Piller POWERBRIDGE™
POWERBRIDGE™ is a kinetic energy store combined with Piller UPS units instead of batteries. It consists of a vertically mounted synchronous generator whose rotor is connected to a flywheel.
- UBTD+, UBT+ and UB-V where battery rooms should be avoided
- Sites with high ambient temperature
- Projects focused on disposal and environment
Technical data
| Manufacturer | Piller |
| Type | Energy store |
| Energy | Up to 60+ MJ per unit |
| Power / time | Above 3 MW; 1 MW for more than 60 seconds |
| Space | Up to 90 % less floor space than batteries |
| Service life | More than 20 years |
| Bearings | Automatic greasing from reservoir |
Source: www.piller.com; www.piller.com.
Technology
How it works
When energy is needed it is discharged through the generator into a converter stage that delivers a stable frequency to the UNIBLOCK™ machine. Recharging works the same way in reverse.
POWERBRIDGE™ can absorb energy at the same rate as it can discharge it – indefinitely. Piller points out that this cushions the diesel engine and gives frequency stability under dynamic load.
Magnetic lift reduces the forces on the main bearings, raising efficiency and extending bearing life.
Application
Where it fits
- UBTD+, UBT+ and UB-V where battery rooms should be avoided
- Sites with high ambient temperature
- Projects focused on disposal and environment
Versions and options
- Several sizes by power and autonomy
- Single or in parallel with several UPS units
Service
Operation and maintenance
Bearings are greased automatically from a reservoir, and the stored energy is known and predictable – there is no capacity fade over time as with batteries.
A rotary plant should always be load-tested at commissioning – stepped load, utility failures and transfer to engine.
Other models from Piller
Read more at Bluecircle
Norwerk’s partner Bluecircle has in-depth pages on the topic.
Do you have a project or a system that needs service?
Send us the load, required autonomy and voltage level – or describe the task. We will come back with a solution sized for your operation.